DE2365877A1 - ELECTROMAGNETIC RAIL FOR THE LINEAR MOTOR DRIVE OF A RAIL VEHICLE - Google Patents

Description

PATEN! LAWYERS

HENKEUKERN ₁ FEILERAHANZEl "

Ti ¹ Li-K- Ii * ""> so ¹ HNKi η BaYIIUS (III- in i'onn KiN- im »

HNKi. η KDUAKD-SCHMID-STRASSH ' ¹ * h hsi ι hank mi -nc ίιι.ν nt ■: * ν ■ · i

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Th *; 7uvuka-n riockric ^ cI ^T .ti 2365877

3u2:! I. tomo Ξΐ-jc trie InJuötriey, LtJ.

Tokyo and Csalca, Japan

(Eliminated from TT-PS 2J- 2o 256.C) L ^ J _u jj ^ 75

lL'loktroi: ia ^ vieti..eche Schiene fü :: · Λ- ~ -η LLnsarmotorantriob oLnes .Schienenfaluv. ^ - useo

T-Ie lOrfinduns concerns an olektromagnetiGcho rail? for ien I.inear-: -: iotorantrieb sLnos rail vehicle, with v / elcher armature coils arranged one behind the other are provided on a stationary tracer with a perpendicular coil plane in the longitudinal direction of the rail and by means of phase-shifted control via semiconductor converters in the sense of generating a are fed according to the vehicle speed advancing traveling field in order to give the vehicle in connection with a vehicle-side DC-fed field generator arrangement a driving force and a levitation force.

From DT-OS 2 133 922 a device for driving a movable body in a floating state at a very high speed under the influence of a magnetic field and under Use of armature windings is known which has vertical and horizontal conductors that are continuous along the path of movement the movable body are arranged in the direction of movement, and wherein movable magnetic fields are applied to the

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lor Ur ₁ 1. ~ r se it ·: .- -; »s be ν; e like η body pc-rs- so anceoHnrt;? 1> τΐ, daii - '. ir -: · ΐ · τ; · ".ί5 ^! :? xt: Jü ~ ti. j Sk FIuI γ - ikr ^ hi Lui - · · rti -Mti ■; ^v:: - to -Jlnnrn ^v i schlelfon: lär fixed Auk .- r.vL- ^'> .klunre-n Vhr ^n: iif !; iid':?... horizontal conductor di ^: -: nr fixed anchor nerve / Lcklunren intersects. Pel dUiSc-r, known · -η VorrL :: h tung sine ¹ j «." -o ^ h "Vi .: h Ln tc-r"; ^: r. üririor-1 Reading armature windings all Ln eiern ael.be η "LcknlsL -; ^" i / :: L _ \ i ·. 1 ^f . and darüuerhlnaUij each armature winding needs one siren. ·; Ctromabr.cb.T.Kreinrichi-un,?} Um kon.tlnu.Ler] i.ch j-jf ^J - · Armature winding with iirc blending of the bev. ^r 3gl i chßn magnetic "clrlnr i-ljichsätrorri" to be able to supply. gur achieving a b-nvejlichan field bz ' ^1. '. for the control of a drive iau-7. H.·? "1Lt->ö-> r known device ever:" ie armature winding zu ^ anz becti'nrnton Z-eitrrurJit'jn ·· - i ..-- r. v " ^1. ·· ■ '·: j: nr.: U ^!: L-? rh ii'f'cdsn, urn« Lie cancellation -3er by the individual armature winding through which there is no current ! br; kraf ts; i prevent.

From the DT-OS 1 δο7 569 is a linear TnduktLonssiolor b -:! -. Annt, 1er has an elongated, flat inductor, which extends over a great length and whose windings generate a sliding magnetic field along this inductor and wove ^ i. dor indul- 1 ior ;; . • aotor has a short armature which extends along the magnetic field created by this inductor bOGtimrat.iU 'V? Se3 a-.t.?r Iv-' Vir ^ un ^ Ivs -1-Lt-nden. can move, which in the armature InduktionsströmG .jrsevigt, 30-v; ie with a magnetic circuit that closes the magnetic flux of the sliding magnetic field. According to this known construction, the magnetic circuit as a whole should be firmly connected to the short armature and extend approximately to the length of this armature. In this well-known linear induction motor, the usual three-phase current supply is used and the successive windings of the inductor are wound in the same direction and the vertical conductors of the individual windings must be excited one after the other so that a constant act in one direction. ! .-; Force that acts on the vehicle, or acts on the armature, adjusts.

From the Ι ^τ / Γ · -? 3 3 & k ^{L. no} - ~ ^f * "'hlu.21.i a" linear induction motor

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bs.-i: .-. · '.: -. I ₅ hai - "- G- C ¹ Ii] -3 · ■■ 'un ^ cV en r'os Π ¹ cLorLcilfcd ine part L nan dc-rl ic; Genri to JP-OIT ¹ IiO t εΐηο ur. 'i the coil bune of the individual coils runs horizontally. The go well-known arrangement "v.'Lrd eben-'. ^r 'a]], r fed by rotary current, so that here kotne Ilintereinanciönun _t : -J-sr individual'. Windings along a rail possible i. ^r : i :. In a special embodiment of this known construction, the individuals are 7 / i. cklungen in groups with three windings each, v; ofcei a winding within the arv ^; -_- its winding is located. Also, the windings of the individual "ι · α £ .ιι-π are not: wound in the opposite" .Vickelsense, but are excited alternately in an engegerirc- set sense.

"As mentioned, the vehicle propulsion system consists of the use of semiconductor-controlled rectifier linear motors, armature coils and an electric generator assembly as the main components, while hovering, accelerating, decelerating and stopping the vehicle by controlling the If an emergency occurs and the armature current is interrupted while the vehicle is hovering and traveling with extraordinarily high precision, the vehicle body sinks rapidly, with the passengers, the vehicle and the Although this risk can be averted by arranging an emergency brake, an emergency floor wheel or various other types of safety precautions, quickly applying the manure brake when driving at excessive speed is associated with danger it is difficult to get the excrement bottom wheels out with mechanical strength, with a certain period of time between the occurrence of the emergency and the touchdown of the wheels. In addition, the running wheels and the electromagnetic rail must be designed in such a way that they have sufficient strength to withstand the shock loads generated by the falling of heavy vehicle vehicles with a weight of, for example, about ^ -ot each. Tie attached

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A conventional braking system cannot therefore strive for safety and are guaranteed by impellers alone.

The object on which the invention is based is therefore to to improve the electromagnetic rail of the type defined in such a way that with increased security against excessive The development of towers in the rail is sufficient for the vehicle Braking force and a levitation force can be issued.

Starting from the electromagnetic rail of the initially defined Art this object is achieved according to the invention in that a number of short-circuited induction coils under the armature coils is arranged, which are arranged in the longitudinal direction of the rail on a straight line and the coil planes perpendicular lie that the induction coils in the "/ ice on the carrier are mounted that they are mounted on the rail vehicle by the Field generator assembly generated magnetic flux are coupled and thereby generate a levitation and a braking force, and that a line made of non-magnetic metal for Promotion of a coolant is arranged above or below the induction coils.

The arrangement of the armature coil and the induction coil is expedient encapsulated with synthetic resin to form a uniform structure. The two side surfaces of the stationary support are used for production a contact with wiper pantographs for supplying excitation current to a field generator assembly mounted on the vehicle.

With the rail according to the invention, the vehicle can be given an additional levitation force without the vehicle falling a sudden stop drops too quickly and suddenly braked will. Another advantage is that the heat developed in the induction coils and armature coils is effective and is discharged very quickly, so that deterioration of the electromagnetic rail due to the influence of heat is prevented.

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Pe 3 sr. de rs zv / corner training and advanced training of the Erfir.'iu.'C .: ._> ;; (. r. εΐ-jh from cer. Claims 2 to 7.

I ::. fclror.'j-ir. ;; L rf '-Le invention based on exemplary embodiments under Mir./ic!ξ on 'JIe drawings explained in more detail. It shows:

Γ:. · :. · ^ Lr.en cross section through one with a coolant line provided electromagnetic rail;

? ig. ? a cross-section similar to FIG. 1 to show a modified coolant line;

FIG. 3 shows another cross-sectional illustration similar to FIG. 1 an even differently designed coolant line; and

FIG. K shows a cross section through another embodiment of an electromagnetic rail, in which a coolant line and a pick-up for exciting the magnetic field on the vehicle are mounted on a carrier.

According to the invention, a right-hand G'-> kursfj .. c -. "L ':.;..'" cr. - Γ coil, hereinafter referred to as the induction coil Zk, the plane of which is practically at the same level or parallel to the armature coil plane, below the latter The arrangement of the armature coil and the short-circuited inductive coils is covered with a protective cover and attached to a stationary support. In this construction, part of the magnetic flux generated by the magnet construction carried by the moving vehicle couples the induction coils together, so that a current is generated in them The levitation force generated in this way prevents the vehicle from falling or sinking rapidly due to an interruption of the current flowing through the armature coil while the vehicle is hovering at high speed. The braking force decelerates the vehicle, that can then "land" safely.

If one by the semiconductor controlled rectifier linear motors

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powered train that floats on the rail and operated at ultra-high speed, for example 500 kr .. / h wLrci, for example has an 'A' weight of 40 t each, the driving forces and levitation forces required for this high-speed operation are each 5 t or L ₀ t per 'Vagen. As a result, the magnetomotive force that must be generated by the trigger coil is up to 80,000 AT. If the length of an electromagnetic rail supply section is assumed to be 500 m, the sum of the counter electromotive force and the commutation shock induced in the armature coil when the vehicle is moving is 2o kV, which also induces a high voltage in the induction coil located under the armature coil. The insulating cover provided for the protection of the arrangement of the Ahker coil and the induction coil must have a sufficiently high strength. For this purpose, it is advantageous to insert a grounded shield made of an eLnpr f metal layer or layer between the armature coil and the induction coil or between the armature coil and the carrier for the electromagnetic rail. However, in order to prevent the induction of heat currents in the shielding layer by the magnetic flux generated by the field generating arrangement carried by the vehicle, it is preferable to use the shielding layer with a metal layer which "covers part of its surface, but not all of its surface," so that the corresponding slots are laid.

To have a large magnetomotive force around 80 · 000 AT for the electromagnetic To generate the rail, a high current density of the order of I5 A / mm must be passed through the armature coil, a great Jouische warmth is developed in, the armature coil. 7 / hen, for example, trains each 300 m in length at 5-minute intervals fcLt a speed of 500 km / h on electromagnetic. Rails run, each of which has armature coils with a conductor

2
Have a cross-section of 5 cm and are composed of 5> oo m long conductor sections, the temperature rise of the armature caused by the Joule heat accumulating over time reaches

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6.0984 1/000 ~ _B AD

Finally, as shown in FIG. 12, coil a '.Vert close to 80 ° C. In slow speed of the train, wherein the stream is long applied, the train that is a longer time period required to the 5oo m long electromagnetic to traverse rails supply section, ^v is this Teir.i ^ raturanstleg even higher and can £ foo ° C or even 1, ooo Z at stations at driving speeds of 50 km / h. These values can be increased considerably by the '.7Or ¹ HO generated during the test.

Due to this excessive rise in temperature, they become part of the electromagnetic rail and the electrical insulators, fillers and protective covers representing the coil conductor ο3 ° γ even restricted, causing a mechanical failure d? r elektromiirnetii see rail can be caused. Consequently it is highly desirable to have an effective means of dissipating the energy developed in the electromagnetic rail. saved. Provide warmth.

For effective use of the properties of the semiconductor-controlled Linear rectifier motor, it is advantageous according to FIG. 1, an extremely narrow, for example about Io ram distance C zv / ischen the armature coils 21, 21 'and the exciter coils 22 of vehicle-borne field equipment arrangement to be provided. For this The reason is it is difficult to use a cooling device in the form of a coolant line E.g. in the space between the electromagnetic rail and the field generator arrangement. Both according to the invention electromagnetic rail with induction coil, however, it is possible to effectively dissipate the heat developed in the armature coil and to increase the mechanical strength by arranging the plane of the armature coil in the vertical direction, a line 23 from a highly conductive, non-magnetic metal, such as copper, aluminum or stainless steel, for the passage of a coolant like air, oil or water over those arranged in a straight line Induction coils are arranged and a Spile X is provided, which is formed by casting the armature coil with the same material

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which is divided into two halves, which are shown in FIG are arranged on both sides of the line 23. The ones made of non-magnetic Metal existing line 23 can according to FIG. 2 at their Be occupied inner surface with ribs 25 or according to FIG. 3 T-shaped Have cross-section to increase their heat dissipation capacity.

The stationary support 3o for the potted coil arrangement can be constructed in the manner shown in FIG. K. In Fig.>: Carrier 3o shown consists of non-magnetic metal such as aluminum, and is provided at its top with an elongated • Rut 26 for receiving an induction coil 2IF and with a coolant · channel 27 of the groove 26. The Joule heat generated in the armature coil and in the induction coil can be effectively dissipated by passing a suitable coolant through the coolant channel 27. When using the carrier 3o according to FIG. Zf, current collector lines 29 for the excitation coils 22, 22 'of the field generator arrangement can be attached to both sides of the carrier with the aid of electrical insulators 28.

If the carrier 3o itself as a pantograph line for the field excitation coils 22, 22 · is to be used, it can consist of a non- • magnetic Made of metal and divided into two longitudinal halves, that are connected to one another by an interposed insulator will. The current collectors or collectors Y for the field coils 22, 22 'are arranged so that they are along the side surfaces of the carrier grind.

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Claims (2)

'365 Japanese National Railways · J] "Jy || ' Claims . Electromagnetic rail for the linear motor drive of a rail vehicle, in which armature coils arranged one behind the other in mutual overlap are provided on a stationary carrier with a perpendicular coil plane in the longitudinal direction of the rail and are fed by means of phase-shifted control via semiconductor converters in the sense of generating a traveling field that progresses according to the vehicle speed , in order to give the vehicle a driving force and a levitation force in connection with a vehicle-side DC-fed field generator arrangement, characterized in that a number of short-circuited induction coils (2.Li) are arranged under the armature coils r t, '• r. Tängsrichtung the rail are arranged on a straight line and whose coil planes are perpendicular, that the induction coils (2 / f) in such a manner on the support (3o) mounted so that it through the assembled by the rail vehicle field generator means (22,22 · ) generated magnetic flux are coupled and thereby generate a levitation and a braking force, and that a line (23) consisting of non-magnetic metal for conveying a coolant is arranged above or below the induction coils (24) « 2. Electromagnetic rail according to claim 1, characterized in that that the armature coil (21,21 ') the metal line (23) and the Induction coils (2 / |) are assembled into an inseparable unit, which is mounted on the carrier C3o ^. 609841/0006 y. Electromagnetic rail according to Claim 1, characterized in that the carrier (3o) consists of a non-magnetic material and has a longitudinal groove (26) on its upper side for receiving the induction coil (24) and below the groove (26) with a line ( 27) is provided for conveying coolants, and that devices (Y, 28, 29) for supplying excitation current to a field generator arrangement (22,22) mounted on the rail vehicle with interposed insulators (28) mounted on both sides of the carrier (3o) are. L ·. Electromagnetic rail according to Claim 1, characterized in that the armature coil (21, 21 ') is arranged on both sides of the line (2.3). 5 · Electromagnetic rail according to claim 1, characterized in that that the carrier (3o) does not consist of two longitudinal halves magnetic metal, which are braced against each other with an interposed insulator, and that the two Side surfaces of the carrier (3o) with current collectors for a field exciter coil (22, 22 ') mounted on the rail vehicle in sliding contact (Y) can be brought, and that the carrier (3o) with interposed insulator on a construction arranged on the floor is mounted. 6 Electromagnetic rail according to Claim 1, characterized in that that between the coil and the induction coils (24) an electrically conductive shielding layer is inserted, which is designed so that an eddy current flow is prevented in it. 7 Electromagnetic rail according to Claim 1 or 6, characterized in that that between the Ankprspule and the carrier a electrically conductive shielding layer is inserted, which is designed so that an eddy current flow is prevented in it. 609841/0006