DE2364331A1 - Linear motor without vehicle drive - having zig-zag current loops at two levels in track - Google Patents

Abstract

The high speed linear motor has a simplified current supply in the guide rail, without requiring costly coils. The current loops are laid in a transverse manner in alternate different levels, with the adjacent transverse tracks joined by alternate loops on either side of the track. Several loop systems are interdigitated in this way to form a complete linear drive system which does not require any drive motors on the vehicle, and which has no electric/mechanical contact with the vehicle. The system is simple and economic in construction.

Description

Patent specification t8.1? .73

Linear motor

The advantages of a linear motor with one installed in the route. V / andersf e] d are those of a simplification of what is equipped with it Express traffic system, which includes in particular that the vehicle does not Drive motor and no power supply required.

The problems of a Wanderfeldstators are the cost per unit length on the one hand and in the associated Aufwänden, on the other hand, in need of a small as possible to avoid excessive SelbtinduktiVitat; 5cheinleistungen _#

The manufacturing cost of a traveling field stator is significantly lower ^ if it is possible to avoid the coil-like winding and instead to exercise the function in a κα other-shaped winding. Here the relationship between voltage and amperage on the Bringing the desired value is an advantage according to the invention Ktfeander-shaped insertion of current-carrying conductors ^ which if necessary are combined in one cable, with each at the end or at the beginning of an otator section the various circuits the mutually insulated conductors can be made.

If the tangled line guide is offset by one pole pitch, then there is the advantage that a return of the current can be switched in the same stator while maintaining the required value Direction of current in cross direction. The cross cuts in the Grooves of a ferromagnetic stator body each have. Pole pitch and are triple according to the three-phase winding staggered one behind the other.

3ADORI 5098 26/0193

In the description and in the claims for one of the three current-carrying three-phase cables.

There are two versions of long stators to be considered,

Zg) the stator with current-carrying conductors on one side and the stator with current-carrying conductors on two sides .

K. \ χιζ a favorable type of winding for double-grooved stators is used to avoid or reduce winding overhangs as the upper and opposite lower slots are connected by one winding in a relevant, multiple or half-integer multiple windings # Purch Addition of a second or third winding to a first, if necessary With different cross-sections or numbers of turns and with the appropriate circuit and circuit change, an adaptation to the load conditions of the linear motor can be brought about, which allows the effort, especially of the frequency converter that takes care of the feed, to be achieved and claim ^ ¹ - 'switches ^ then even the already reduced inductance of the longitudinal * "beats can be compensated for by the fact that

Lines with opposing S ^ f-οκ ^ «* - ι ^ & β * -« A *. (U> offi /

^f 509826/019 3

The interconnection Handle multiple lines or circuit separate windings of a groove or "a groove group may be at the beginning, made at the end of a Einspeisunganbschnittes" It is advantageous _for when each circuit is carried out separately for the stator of the left lane side and the right lane side to at Failure of a stator to maintain an independent ^^ tator. 1es drives

and to have the rest of the function "particularly" restrictive However, the cost conditions are the return of a Leitimgsführung one side on the other side of the lane ± n the second stator of simplifying advantage. and the ability to adapt to the drive and guidance conditions, if necessary depending on the temporary load situation wtiter can be increased.

While the magnetic flux ± u stator occurs along the direction of travel when using the ring windings, a flux direction between the exciter poles above and below the stator perpendicular to the direction of movement is advantageous, especially for cases of particularly high speed and not too high vehicle weight FahrzeugkuTc, that is, the compensation of the vehicle weight is carried out by separate levers that require a flow in the other direction, pier to the direction of movement. The volume of the ferromagnetic stator material can be drastically reduced in favor of a lower inductance of the stator »which also results in assembly and cost advantages, here the stator essentially consists of individual pieces transverse to the direction of travel - especially horizontally» , between which Baum for accommodation of the windings especially according to claims / f ~ ^ y " . ^ f;

W * ^ **. ι ^ <ί £ ζ.ς <χ χ. ■ & * -? _ iv « dew of the appearance of a drive resonance with oscillating forces to achieve a harmonization of the - yellow is ^ 'the setting of a weak angle between the pole limits of the exciter magnets, current-carrying conductors and the ferromagnetic material of the stator is advantageous.

509826/0193

The attachment of the stator body to the track is crucial for the usefulness of the advantageous long stator system.

In particular in the case of the ring winding according to claim 9, e * gi1e% can Specify a favorable fastening in that the areas of the stator that are free from current-carrying conductors are secured by screws with spacer sleeves Or spacer nuts can be screwed onto roadway parts »This means that a high mechanical level can be achieved without increased effort Natural frequency, insensitivity to resonance interference and high flexural strength of the stator can be achieved with little effort.

While the long stator has to be designed and constructed for lifting forces of the vehicle and for driving forces, _{other components must be provided for significantly higher forces for skid travel t} the lowering and braking or emergency braking of the high-speed vehicles, as these loads cannot be absorbed by a stator # Bie The stator body must be connected directly to the cylinder provided for the high loads for reasons of "C" or gap resistances - and for reasons

the adjustment brings the configuration specified according to the invention for this the advantages of the good transfer of forces, the adjustability and the low resistance with minimal constructive effort «

The upper part of the vertical surface and the horizontal one Area for lateral guidance when sliding the skids or vertical guidance provided for skid sliding.

5 0-9826 / 0193

While the long stator linear motor brings great advantages for reducing the technical effort in the vehicle, equipping the excitation fields with electromagnets would in turn complicate the need for energy supply for the electromagnets from the vehicle. The benefits, possibly even the reduction in weight, are particularly strong in the circumstances according to the invention

if
dannKstatt the electromagnetic excitation fields using permanent-magnetic excitation fields findenrWenn these fields for a Steurung Sehwebe achieve floating characteristics of the vehicle / such as those required for high speeds serve ^, then ih ^ NEN an electromagnetic Steurung to superimpose.

509826/0193

Claims (1)

Claims linear motor 12/18/73 (1. ) Linear motor with traveling field stator characterized in that the current-carrying conductors not in closed turns but after cross cuts 1 each right or left in the same 'direction progressively to the next cross passage, etc. 2. Linear motor according to!. Characterized in that several against each other insulated conductors, possibly combined in a cable, are laid. 3. Linear motor according to previously characterized in that a current-carrying Conductor 2 or a group of current-carrying conductors according to claims 1 and 2, but offset by one crosscut division is laid in addition to the line routing according to 1. and 2.. ^. Linear motor according to previously characterized in that two configurations according to claim 1, 2. and possibly 3 · »together on a double-grooved stator 3 and that opposite, in particular are arranged below and above. 5. Linear motor according to claim if. in connection with claims 1., 2. with and without 3. characterized in that the cross cuts of a line guide according to claim 2 or 3 · are alternately led below and above, so that a spiral winding-like arrangement results with parallel longitudinal cuts below k ' BAD QRiQfMAL 509826/0193 6. Linear motor with wall "f ^ ldstctor, which is double grooved, otherwise according to previous claims, characterized in that the current-carrying conductors in a cross-cut loop alternately left ⁵ 5 and right ⁵ 6 out" earth. 7. Linear motor according to 6. dadureft marked that the svelte Leltungs- or (cable) fttkntfef »with Läagsschlag 7 auf Gleicker However, on the side, the left and right loops are reversed. 8. Linear motor according to claim 6, 7, characterized in that the · Half-integer loop windings with alternating sides can also be created. 9 «linear motor according to 6. characterized in that ring windings used instead of the loops with alternating directions of rotation or with the same direction of rotation at twice the distance to the next winding position. 10. Linear motor according to 9, characterized in that aehzwre ring windings are used in a winding position 8, primarily in such a way that the current directions of the longitudinal beats 7 have opposite current directions when interconnected. 11. Linear motor according to 10. characterized in that the ring windings have different numbers of windings. 509826 / U193 12. Linear motor according to previously characterized in that the windings are additive, subtractive, additive + subtractive, parallel ^ one after the other or. can be switched individually. 13 »Linear motor as previously characterized in that the Connection of the windings according to claim 12 also takes place with the adjacent stators of the same track and / or the return track. 1 * 1. Linear motor according to previously characterized in that the Switching of the strands takes place according to the load on the route with vehicles and / or the demand for feed force. 15. Linear motor according to the fact that the Ferromagnetic stator 9 also transversely to the direction of movement 10 extending parts that have no or only insignificant longitudinal iron connections. 16. A linear motor according 15- characterized in that the extension of the iron parts in the direction of the magnetic flux between the mutually rregermagneten ^v, 11 on the one hand UMT "on the other hand has only iSurch mechanical load on the current-carrying conductor required height 12th 17. Linear motor according to 16 characterized in that the extension _s fcfer iron parts in the direction of movement '' .C the Srregerteile e ^ / ^ fOtitfL having less than the SrStreckung the ^ rregerpoleiln direction of movement. 5 0 9 8 2 6 / ü 1 9 3 ^{BAD 0R: G1NAL} .4. 18. Linear motor according to previously characterized in that the Grooves or spaces between the iron parts are inclined with respect to the front and rear pole limiters and thereby one Include angles smaller than 20 degrees. 19 · Linear motor according to previously characterized in that the lifting force for carrying one with the excitation part 11 of the linear motor connected vehicle separated from the lower exciter magnets takes place by separate controlled magnets 15, their magnetic circuit is transverse to the direction of movement and the iron parts are magnetically traversed along 16 · according to claim 15. , 20. Linear motor according to previously characterized in that the lifting forces of magnets 1? be exercised together with separate iron parts 18 without a tunneling field ^ 1 <νίί ·? <τλ U. ζ. ^ heiti \ 4T ^ cA 21. Linear motor according to 1 ^ j. characterized in that the iron parts be fixed and held by clamping or screwing on a surface 19. 22. Linear motor according to 15- characterized in that the Longitudinal strands of the windings 20 come to lie at least on the fastening side above or below the stator surface. 23. Linear motor according to previously characterized in that the attachment of the stator iron part, in particular according to claim 9, by means of screws or similar connections 21 that form the surface 22, whereby the connection is primarily made on the side on which there are no longitudinal strikes. BAD ORfGJMAL 50982 6/0193 2.1+. Linear motor according to 23 », characterized in that with the aid of the screw connections 21 an adjustment of the traveling field stator takes place according to height and / or side. 25. Linear motor according to previously dadureh characterized in that the screw connection takes place on a part of the track 23 which, after a vertical extension Zk, has a horizontal outwardly facing surface 25 which is suitable for placing the vehicle on runners or for braking the vehicle and a correspondingly high load can be transferred to the guideway 26. Linear motor according to previously characterized in that vertical and horizontal connection part 23 together with the traveling field stator is arranged so as to be adjustable in relation to the travel path « 27. Linear motor as previously characterized in that the exciter fields of permanent magnets that are functionally connected to the stator 11, 26 are generated. 28. Linear motor as previously indicated in that a controller the excitation fields to control air gaps and Leadership and load-bearing forces of the vehicle connected to the pathogens by electromagnetically controlled magnets 2? he follows. 509826/0 193