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WO2011042278A2 - Manchon permettant d'accoupler les extrémités des enroulements d'un moteur linéaire à stator long et stator long pourvu dudit manchon - Google Patents

Manchon permettant d'accoupler les extrémités des enroulements d'un moteur linéaire à stator long et stator long pourvu dudit manchon Download PDF

Info

Publication number
WO2011042278A2
WO2011042278A2 PCT/EP2010/063214 EP2010063214W WO2011042278A2 WO 2011042278 A2 WO2011042278 A2 WO 2011042278A2 EP 2010063214 W EP2010063214 W EP 2010063214W WO 2011042278 A2 WO2011042278 A2 WO 2011042278A2
Authority
WO
WIPO (PCT)
Prior art keywords
sleeve
winding
grooves
long stator
sleeve according
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.)
Ceased
Application number
PCT/EP2010/063214
Other languages
German (de)
English (en)
Inventor
Jürgen BRAUN
Michael Horvat
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 WO2011042278A2 publication Critical patent/WO2011042278A2/fr
Anticipated expiration legal-status Critical
Ceased 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
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots

Definitions

  • the invention relates to a sleeve of the type specified in the preamble of claim 1 and a long stator according to the preamble of claim 14.
  • Long-stator linear motors of the type of interest here are used for example for driving magnetic levitation vehicles. They contain one behind the other arranged in a direction of travel, z. B. 1 m to 2 m long long stator elements, which are composed of a plurality of sheets and alternately teeth and grooves, in which a traveling field winding is inserted.
  • the grooves are provided with adapted to the winding inner contours that the winding can be pressed due to its elastic outer sheath in the manner of a snap connection in the grooves and thus can be fixed in this without additional aids.
  • a metal sleeve is usually arranged, which serves the purpose of connecting the protective sheath to a ground line, thereby derive particular capacitive currents and to ensure protection against contact (eg, DE 196 20 221 A1, DE 196 20 222 C1).
  • the individual long stator elements are usually mounted on guideway beams of up to approx. 60 m in length and combined to form long stator sections, which are provided with correspondingly long winding sections.
  • a plurality of in the direction of travel successively arranged guideways forms a z. B. 1000 m long engine section, at the ends of the winding via switching devices to a laid next to the track, z. B. 30 km long track cable is connected, the ends of which are connected to housed in so-called substations power sources.
  • the windings on the Of course, ends of the motor sections can also be connected directly to associated substations.
  • connection of the coil ends with each other or with the connecting lines by means of sleeves of the type described above.
  • the windings are led out at the joints and junctions from the adjoining Langstatoriatan and then fastened including the sleeves on the guideways.
  • the required holes and fasteners such. As clamps, rails, screws od. Like. Require increased material and installation costs.
  • approximately 1.5 m to 2 m long coil ends are needed for the connection through the sleeves per shock or connection point.
  • the invention is based on the technical problem of providing a sleeve, by means of which the disadvantages described largely avoided and in particular compounds can be made that do not require long coil ends and fasteners for this.
  • a provided with such sleeves long stator should be created.
  • FIG. 1 shows schematically the known structure of a winding cable for a long-stator linear motor of a magnetic levitation railway
  • 2 shows the likewise known construction of a long stator element of a long-stator linear motor with a winding inserted in it
  • FIG. 3 is a schematic, exploded view of a sleeve according to the invention for a winding cable according to FIG. 1;
  • FIG. 1 shows schematically the known structure of a winding cable for a long-stator linear motor of a magnetic levitation railway
  • 2 shows the likewise known construction of a long stator element of a long-stator linear motor with a winding inserted in it
  • FIG. 3 is a schematic, exploded view of a sleeve according to the invention for a winding cable according to FIG. 1
  • FIG. 12 shows a longitudinal section through the sleeve according to the invention according to FIG. 3 in the fully assembled state
  • FIG. 13 shows a schematic longitudinal section through one end of a long stator element with a sleeve inserted into an end groove according to FIGS. 11 and 12;
  • FIG. 14 shows a schematic perspective view from below of the long stator element according to FIG. 13; FIG. and
  • the conductive layer 3 is of a z. B. made of ethylene / propylene insulation layer 4 surrounded one for high voltages of z. B. 6 kV to 20 kV suitable wall thickness of z. B. 4 mm to 5 mm.
  • the z. B. is used to compensate for pores formed in the insulating layer 4.
  • Fig. 2 shows a z. B. 1 m long long stator 7 in the form of a composite of a plurality of individual sheets laminated core for a long stator linear motor.
  • the long stator 7 has at predetermined intervals grooves 8 and interposed teeth 9, which are formed transversely to its longitudinal direction extending in the direction of travel (arrow y) continuously.
  • a three-phase AC or three-phase winding 10 formed of three strands 10a, 10b and 10c is usually arranged, wherein each strand 10a to 10c consists of a winding cable 1 according to FIG.
  • the long stator is formed in total from a plurality of such long stator 7, which are arranged one behind the other in the longitudinal direction y and cooperate in a known manner with reaction parts, not shown, the z. B. simultaneously serve as the limbo producing supporting magnets and are installed in a magnetic levitation vehicle.
  • the Langstatorieri 7 are usually attached to vehicle carriers, not shown, the z. B. about 6 m long, but can also have lengths up to about 60 m.
  • the joints between each two such guideways are designed as Deh nungspalte to avoid collision of the long stator elements 7 and crushing of the windings 10 in these areas even at the highest temperatures to be expected.
  • the general structure, the operation and the control of such a long-stator linear motor are those skilled in the aforementioned writings and z. B. from the documents DE 33 03 961 C2 and DE 199 34 912 A1 generally known, which are therefore made to avoid repetition hereby by reference to them the subject of the present disclosure.
  • inventive sleeve 1 1 is shown schematically in Fig. 3 in an exploded view. It contains in particular a sleeve 12 made of a highly electrically conductive material such.
  • this surrounding, preferably two half-shells 14a, 14b formed insulator 14, a shrinking tube 15 surrounding this and at least two clamping rings 16, the fastening of the sleeve 12 on the conductor 2 z. B. of the strand 10a of the winding 10 shown in FIG. 2 serve.
  • the sleeve 1 1 is formed according to the invention as a component which can be pressed as the winding 10 in one of the grooves 8 of the long stator and thereby fixed in the long stator. This is indicated schematically in Fig. 4, which shows a plan view of the shape of the three strands 10a to 10c in their inserted into the grooves 8 state, wherein the grooves 8 and the long stator 7 are omitted for reasons of clarity.
  • Fig. 4 indicates that the sleeve 1 1 is different than previously used to be arranged as the linear portions 17 within a groove of a long stator 7 and connect two arranged in the same groove 8 coil ends together, as described below with reference to FIG. 5 to 14, which show a presently considered best embodiment of the invention.
  • Fig. 5 shows one end of the cut in the region of a groove 8 strand 10a.
  • the insulating layer 4 Before attaching the sleeve 1 1 of this strand end is stripped by the inner conductive layer 3, the insulating layer 4, the outer conductive layer 5 and the Protective jacket 6 are removed manually or mechanically to a preselected length, so that only a free conductor end 2a stops.
  • the sleeve 12 is now attached to the conductor end 2a, said sleeve 12 is shown to increase clarity in Figs. 5 to 9 as a transparent component.
  • the sleeve 12 includes, as well as Fig. 3 shows two for attachment to the conductor ends 2a certain terminal ends 12a and 12b, the inner diameter of which are slightly larger than the diameter of the conductor ends 2a, and a middle between these two section 12c, from further below explained reasons has an enlarged cross-sectional area.
  • the terminal ends 12a and 12b are preferably provided with dashed lines indicated, groove-shaped indentations 19 which are formed in the outer peripheral surface of the sleeve 12 suitably produced as a compression molding. These indentations 19 indicate the desired positions of the clamping rings 16.
  • Fig. 7 shows the connection of the conductor end 2a with a corresponding stripped conductor end 2b of the same strand 10a.
  • the clamping rings 16 are mounted on the terminal ends 12a and 12b of the sleeve 12 and arranged in the indentations 19, whereupon the terminal ends 12a, 12b plugged onto the associated conductor ends 2a, 2b and the latter are then pushed together to form a butt joint 20.
  • the arrangement of the sleeve 12 is otherwise such that its central portion 12c bridged the butt joint 20 and preferably comes to lie substantially symmetrically on both sides of the butt joint 20.
  • the two half-shells 14a, 14b of the insulator 14 are now placed around the sleeve 12, the clamping rings 16, the sealing strip 21 and parts of the insulating layer 4 exposed by the stripping of the conductor ends 2a, 2b, wherein FIG Half shell 14b shows.
  • the stripping of the two coil ends to be connected is expediently carried out such that in each case sufficiently wide strips of the insulating layer 4 remain on which the ends of the half shells 14a, 14b are preferably placed.
  • FIG. 10 shows the sleeve 1 1 in the fully assembled state of both half-shells 14a and 14b.
  • FIG. 11 shows the sleeve 1 1 after the shrinking tube 15 (FIG. 3) has been pulled onto the insulator 14.
  • the shrinking tube 15 before the sleeve 12 has been applied, is placed on one of the two coil ends to be connected postponed and pulled over the attachment of the insulator 14 over this until it assumes the position of FIG. 1 1.
  • a shrink tube 15 is used, which is provided in a conventional manner with an inner spiral such that its inner diameter is initially greater than the outer diameter of the insulator 14.
  • the mounting of the shrink tube 15 on the insulator 14 is then carried out with gradual axial unscrewing of the spiral, which create his free of the spiral sections successively firmly against the outer surface of the insulator 14 and thereby form a tight-fitting protective jacket of the sleeve 1 1.
  • the connection of the two ends of the strand 10a is thus completed.
  • the insulator 14 or the two half shells 14a, 14b have an inner contour which is essentially adapted to the outer contour of the sleeve 12.
  • the insulator 14 is otherwise preferably made of the same material, for. As ethylene / propylene, such as the insulating layer 4, and therefore preferably also has at least the same wall thickness as this.
  • the two other strands 10b and 10c of the winding 10 are, if it is a three-phase winding, in a corresponding manner along a butt joint 20 (Fig. 12) separated and connected by a erfindungsffleße sleeve 1 1 together.
  • Fig. 1 3 shows an end section of the long stator element 7 arranged in the direction of travel y according to FIG. 2 with three grooves 8a, 8b and 8c.
  • the groove 8a is empty to make its shape more recognizable.
  • the linear portion 17 (FIG. 4) of a winding 10 is inserted into the groove 8b.
  • the groove 8c is an end groove arranged at the right end of the stator element 7, which accommodates a sleeve 11 according to the invention, also shown in FIG. 4.
  • the winding heads 18 (FIG. 4) which are visible behind the long-stator element were omitted in FIG. 13 for the sake of better clarity.
  • FIG. 14 shows the same end portion of the long stator element 7 composed of individual sheets 7a, the sleeve 11 being inserted again into the end groove 8c, while the remaining part of the string 10a and the other two threads 10b, 10c follow the end groove 8c Grooves of the long stator 7 are pressed. It is also apparent from Fig. 14 that the sleeve 1 1 preferably has a length which is at most equal to the length of the grooves 8, so that the position of the subsequent end windings 18 is not changed by the sleeve. As is further shown in Fig.
  • the similar grooves 8a, 8b and 8c preferably do not have the generally known inner contour (eg DE 196 20 221 A1) adapted to the outer contour of the winding cable 1, but a shape similar to that in an older one , not yet published, German Patent Application 10 2008 061 004.6 the same applicant has been proposed. Accordingly, the grooves 8a to 8c which are open towards the feet 9a of the teeth 9 are bounded on the side remote from the feet 9a by a respective groove base 23 and arranged on both sides of a center plane 24 parallel to the longitudinal direction y, of which the feet 9a and groove bases 23 are identical Have gaps.
  • the grooves 8a to 8c which are open towards the feet 9a of the teeth 9 are bounded on the side remote from the feet 9a by a respective groove base 23 and arranged on both sides of a center plane 24 parallel to the longitudinal direction y, of which the feet 9a and groove bases 23 are identical Have gaps.
  • the grooves 8a to 8c of side walls 25, 26 are limited, which are arranged mirror-symmetrically to planes of symmetry 27 which extend through the centers of the grooves 8a to 8c and are perpendicular to the longitudinal direction y.
  • the side walls 25, 26 are formed centrally symmetrical to lines 28, which lie in the median plane 24 and are arranged in Fig. 13 perpendicular to the plane of the drawing. By rotating around the lines 28 and 180 °, the side walls 25, 26 are therefore imaged on itself.
  • the teeth 9 are shaped accordingly, which is why each tooth 9, rotated by 180 °, fits exactly into a groove 8a to 8c.
  • the side walls 25, 26 of the grooves 8a to 8c are formed so that they have a smaller distance a in a lying between the feet 9a and the median plane 24 area a, as a distance b between the lines 28 corresponds. Between the region with the distance a and the center plane 24, the side walls 25, 26 also formed as bearing surfaces 25a, 26a. Finally, the distance a is chosen to be slightly smaller than the outer diameter of the winding cables 1, so that the linear parts 17 (FIG. 4) of the windings 10 can be pressed under elastic deformation in the manner of a snap connection from below into the grooves 8a to 8c they, as shown in FIG.
  • a particularly noteworthy advantage of the described Nutenform for the purposes of the present invention is that the groove cross-sections - starting from the areas with the smallest distances a - in the direction of Nutenlie 23 expand so that in the inserted state of the linear parts 17 of the windings 10th between these and the side walls 25, 26 each free spaces 29 arise.
  • the sleeves 11 are provided with such external cross-sections that, like the windings 10, they can be pressed into the grooves 8a to 8c, thereby deforming slightly elastically and then resting on the bearing surfaces 25a. 26a come to rest, whereby they are fixed without further aids in the grooves 8a to 8c.
  • the sleeves 12 are provided as shown in FIG. 6 to 9 with the enlarged cross-section center portions 12c. This measure is necessary to give them, in particular in the region of the joints 20 between the conductor ends 2a, 2b, a cross-sectional area which is at least equal to the cross-sectional area of the conductors 2, and to avoid an increase in the electrical resistance at this point. If, for example, the cross-sectional area of the conductors 2 is about 300 mm 2 , then the cross-sectional area of the central portion 12c should be at least about 300 mm 2 .
  • the wall thickness of the insulator 14 and the two half-shells 14a and 14b if for them the same insulating material such. B.
  • ethylene / Proplyen as used for the insulating layer 4, everywhere at least as large as the approximately 4 mm to 5 mm amount of wall thickness of the insulating layer 4 (Fig. 1). This could, if conventional winding cable 1 and the known Nutenformen be used, cause the grooves 1 1 do not fit into the usual grooves.
  • grooves 8a to 8c are provided according to FIG. 13, then according to the invention the free spaces 29 can be used to provide the sleeves 12 and insulators 14 with the required cross-sectional dimensions.
  • the central portions 12c of the sleeves 12 are provided with quadrangular, substantially square outer cross-sections, such as. B. from Fig. 3 can be seen.
  • the insulator 14 and the heat-shrinkable tube 15 are also provided with quadrangular, preferably substantially square outer cross-sections, at least in their regions surrounding the middle section 12c, but preferably over their entire lengths, as FIG. 13 clearly shows.
  • the outer dimensions of the sleeves 1 1 are preferably selected so that they rest in the installed state with a side surface on the respective groove base 23 and terminate with an opposite side surface substantially flush with the feet 9 a of the adjacent teeth 9.
  • the two remaining side surfaces can be arranged with such distances from each other that they can be pressed through the gaps between the side surfaces 26, 27 in the grooves 8a to 8c and then in the same manner on the support surfaces 26a , 27a are supported, as is true for the windings 10.
  • the insulator 14 are made of a sufficiently flexible, radially elastic material, the z. B. may be a rubber-like material for the shrink tube 15.
  • the described measures not only make it possible to comply with the required cross-sectional areas for the heat-shrinkable tube 15 and the insulator 14, since the middle sections 12c of the sleeves 12 come to rest with their upper corners at least partially in the free spaces 29. Rather, it is also possible to greatly round off the corners of the central portion 12c of the sleeve 12, the insulator 14 and the shrink tube 15, thereby avoiding tip discharges or the like.
  • the sleeves 1 1 are preferably inserted into the end grooves 8 c of the respective elongate stator elements 7.
  • the two strands 10a and 10b connecting sleeves 1 1 are pressed into two Endnuten 8c of one adjacent to the joint Langstatorelements 7, while on the other side of the joint, the ends of the third strand 10c connecting sleeve. 1 1 is disposed in an end groove 8c of the other long stator element 7 adjoining the joint.
  • the windings are connected at the ends of a guideway by means of arranged in Endnuten sleeves with the laid there connecting cables.
  • the two half-shells 14a, 14b of the insulator 14 adjoin, as shown in FIGS. 13 and 15, their side edges along separating surfaces 30 against one another.
  • the side edges of the half-shells 14a, 14b engage preferably in the manner of tongue and groove connections 31. This provides the advantage that the radial path for the leakage currents is prolonged and breakdowns are reliably avoided. Alternatively you can Other means for extending the separation surfaces 30 are provided in the radial direction.
  • the invention is not limited to the described embodiment, which can be modified in many ways.
  • the sleeves 11 need not necessarily be placed in end grooves 8c.
  • the sleeves 1 1 are advantageously at least in grooves that lie in the vicinity of one end of a respective stator section.
  • the described forms of grooves and sockets are only particularly preferred examples which are favorable in terms of geometrical conditions but which are not restrictive of the invention.
  • the wall thicknesses of the insulator 14 can be made correspondingly thinner and the outer cross sections of the sleeve 1 1 can be reduced overall. Furthermore, it is possible to give the connection ends 12a, 12b the same cross-sections as the center sections 1 2c of the sleeves 12, if the wall thickness of the insulators 14 does not have to be reduced inadmissibly as a result.

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

Abstract

Manchon (11) permettant d'accoupler les deux extrémités des conducteurs d'un faisceau d'enroulements pouvant être introduit par pression dans des rainures identiques (8a, 8b, 8c) d'un élément stator long (7). Selon l'invention, ledit manchon (11) est conçu sous forme d'élément structural pouvant être introduit par pression dans l'une des rainures (8c) de l'élément stator long (7) et, partant, pouvant être fixé dans ladite rainure.
PCT/EP2010/063214 2009-10-09 2010-09-09 Manchon permettant d'accoupler les extrémités des enroulements d'un moteur linéaire à stator long et stator long pourvu dudit manchon Ceased WO2011042278A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009049225.9 2009-10-09
DE200910049225 DE102009049225A1 (de) 2009-10-09 2009-10-09 Muffe zur Verbindung der Enden von Wicklungen eines Langstator-Linearmotors und damit ausgerüsteter Langstator

Publications (1)

Publication Number Publication Date
WO2011042278A2 true WO2011042278A2 (fr) 2011-04-14

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ID=43706397

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/063214 Ceased WO2011042278A2 (fr) 2009-10-09 2010-09-09 Manchon permettant d'accoupler les extrémités des enroulements d'un moteur linéaire à stator long et stator long pourvu dudit manchon

Country Status (2)

Country Link
DE (1) DE102009049225A1 (fr)
WO (1) WO2011042278A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115765261A (zh) * 2022-12-08 2023-03-07 中铁第四勘察设计院集团有限公司 一种定子绕组及包含其的长定子结构，以及直线电机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3303961C2 (fr) 1982-02-10 1989-12-14 Thyssen Industrie Ag, 4300 Essen, De
DE3917058C1 (fr) 1989-05-25 1990-11-08 Thyssen Industrie Ag, 4300 Essen, De
DE19620222C1 (de) 1995-10-30 1997-03-13 Felten & Guilleaume Energie Vorrichtung zum Verbinden des elektrisch leitfähigen Mantels einer Leitung mit einem Erdleiter
DE19833418A1 (de) 1997-12-17 1999-06-24 Otto Breitenbach Dreiphasige Wechselstromwicklung für einen Linearmotor
DE19934912A1 (de) 1999-07-21 2001-01-25 Transrapid Int Gmbh & Co Kg Fahrweg für eine Magnetschwebebahn mit Langsstator- Linearantrieb sowie Bausatz und Verfahren zu seiner Herstellung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3303961C2 (fr) 1982-02-10 1989-12-14 Thyssen Industrie Ag, 4300 Essen, De
DE3917058C1 (fr) 1989-05-25 1990-11-08 Thyssen Industrie Ag, 4300 Essen, De
DE19620222C1 (de) 1995-10-30 1997-03-13 Felten & Guilleaume Energie Vorrichtung zum Verbinden des elektrisch leitfähigen Mantels einer Leitung mit einem Erdleiter
DE19620221A1 (de) 1995-10-30 1997-05-07 Thyssen Industrie Langstator für einen Linearmotor und zur Herstellung des Langstators bestimmtes Blechpaket
DE19833418A1 (de) 1997-12-17 1999-06-24 Otto Breitenbach Dreiphasige Wechselstromwicklung für einen Linearmotor
DE19934912A1 (de) 1999-07-21 2001-01-25 Transrapid Int Gmbh & Co Kg Fahrweg für eine Magnetschwebebahn mit Langsstator- Linearantrieb sowie Bausatz und Verfahren zu seiner Herstellung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115765261A (zh) * 2022-12-08 2023-03-07 中铁第四勘察设计院集团有限公司 一种定子绕组及包含其的长定子结构，以及直线电机

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