Saddle shaped coil winding using superconductors and method of making said coil winding

FIELD: physics.

SUBSTANCE: proposed saddle shaped coil winding (3) is made from a flat shape of a race track type coil on a pipe-like lateral surface (Mf) such that, it contains winding sections (3a) axially passing on the lateral side and winding sections (3b, 3c), passing between them on frontal sides, which form end windings. Separate turns (Wi) of the coil winding must be made from at least one tape of a superconductor (5), particularly with superconducting material with high critical temperature Tc, whose narrow side (5a) faces the pipe-like lateral surface (Mf). To prevent inadmissible mechanical loads on the conductor when forming the winding, turns (Wi) in the saddle shape must have perimetre (U) respectively, which remains virtually unchanged compared to that in a flat coil.

EFFECT: efficient use of superconducting material from ready tape-like conductors with compact arrangement of windings; small diametre can be achieved of the area forming the pipe-like lateral surface.

23 cl, 10 dwg

 

The invention relates to a saddle-shaped coil winding with the use of superconductors on a tubular side surface with axially passing straight winding sections and located between them on the opposite end sides of the curved forming the frontal part winding winding areas. The invention relates further to a method for manufacturing such a coil winding. A corresponding method for manufacturing such a coil winding follows from JP 06-196314 A.

In the field of superconducting technology saddle coil winding has long been provide in the field of high energy physics and particle or electric cars. Mainly use conductors with classic metal superconducting material with a low critical temperature of transition to the superconducting state Twiththe so-called superconducting material with a low critical temperature Twith(abbreviation: material ntsp). The fact that the conductors can be relatively easily and without losing their superconducting properties to bend in a saddle shape with a passing axially rectilinear sections of the coil and located between them on the opposite end sides of the curved forming the frontal part winding winding areas. Or their superconducting properties clicks the form or regulate according to the so-called technique of "winding-and-response" ("Wind-and-React") only after the final forming conductors in the winding.

Since well-known are also the oxide superconducting materials with high critical temperature of transition to the superconducting state Twiththe so-called superconducting material with a high critical temperature Twith(abbreviation: material HTS), try to produce the corresponding coil with conductors of these materials. The corresponding proposal comes from originally called document JP 06-196314 A. Also in JP 2003-255032 And mentioned the possibility of such conductors for saddle-shaped coil windings. This, however, has a problem that the conductors when the use of such materials with sufficient load capacity current or, respectively, the critical current density Jcyou can produce almost only in the form of tapes, ready tape conductors are, however, very sensitive to stretching and therefore, due to the danger of loss of load capacity of current or, respectively, the critical current density Jcallow bending only in a very small degree. Therefore, in the wide extent abandoned the manufacture of a saddle coil ammotrack with such tape guides HTS and instead expect the so-called "coil type treadmill" (in English: "race track coils"). Coil t is and the treadmill are flat windings, in which the coils are constantly lie within the plane of the winding. If such coil type treadmill overlay each other, the stack in the longitudinal direction, thus, has no holes (so-called "aperture"). In rotating machines with through shaft so the coil type of the treadmill should be installed above and below the Central region (compare, for example, DE 19943783 A1). Therefore, in passing axially straight sections of the winding of coil winding turns out the free space that is not occupied by the winding, which leads to a corresponding reduction in the useful field strength. Through the use of saddle-shaped coils, that is, the coil windings with curved at the end sides of the nose up parts of the winding, there is aperture. Related to this is the effective use of superconducting windings, for example, in rotating machines, provided that the superconductors are respectively formed without prejudice to their superconducting properties.

Flat coil winding type treadmill motor HTS and manufacture of the respective coil windings are described, for example, in "IEEE Trans. Appl. Supercond.", Tom. 9, No. 2, June 1999, s-1200.

It was also suggested conically shaped coil winding with tape HTS conductors (compare WO 01/08173 A1). When the geometry of the coil about the otka though convex, however, also here the conductors of the individual coils on the straights and in the areas of end parts of the winding, respectively, are located in one common plane. The flat sides of the conductors lying in parallel to the axis, which stands vertically from the coil winding.

Also known attempts of manufacturing a saddle coil winding with tape HTS conductors (compare "IEEE Trans. Appl. Supercond.", volume 9, No. 2, June 1999, s.293-296). The design of the winding, however, be obtained for the quadrupole magnet only small apertures; the apertures are, however, insufficient for the dipole windings, which must, for example, be provided for two-pole rotor windings of machines.

Known for the manufacture of coil windings of the sensitive stretch of superconductors method of manufacture is based on the fact that the superconducting properties of the conductor coil winding form only after the winding process in their final form (the so-called technique of "winding-and-response"; compare, for example, EP 1471363 A1). This requires, however, as a rule, complicated devices for winding, which are unsuitable for the relatively cheap cost of manufacturing coil winding for use in rotating machines.

The present invention therefore t is aetsa indication of the saddle coil winding named in the introductory part of the signs, in which the above-discussed problems are reduced. In particular, should also indicate the method of production, which is suitable for the manufacture of non-planar coil windings using pre-made ribbon conductors as superconductors with high critical temperature Twiththat, in particular, are sensitive to stretch.

Related to the saddle-shaped coil winding problem is solved by the features indicated in paragraph 1 of the claims. According to this saddle-shaped coil winding is formed from a coil of flat shape type treadmill on a tubular side surface and is axially held winding areas on the longitudinal sides and passing between the end sides of the winding sections forming the end windings, and the turns of coil winding is formed by at least one band superconductor, which is converted to its narrow side to the tube side surface, and the shape of the saddle have the length of the perimeter, which is virtually unchanged as compared to that in the planar shape of the coil so that the tubular side surface of at least one tape guide in coils in the area of the apex sections of the winding on the mechanical side is its flat side inclined at an angle in the NAC is it relatively normal on the side surface in the direction toward the center of the winding bobbin winding, moreover, the angle at lying inside the loop smaller than the curls, lying outside.

In this case, the length of the perimeter understand the length of a closed circulation superconductor 360° around the center of the winding, for example of the core. When applying the tape conductor the length of the perimeter respectively define two edges of the tape. In the case of a flat winding both the length of the perimeter, of course, equal. Saddle-shaped coil is formed so that both the length of the perimeter in the case of three-dimensional molded coils have at most a difference of 0.4% (preferably 0.3% or even better 0,2%) changes in length relative to the length of the perimeter of the flat coil, and also relative to each other. This difference depends on the design of the superconductor and change its properties of superconductivity when bending or stretching. It may be, therefore, also lower than the specified value. This can be ensured also when considering around the perimeter of the local stretching or compression of the tape conductor compared to the flat coil is at most 0.4 percent (preferably 0.3% or better of 0.2%). This is necessary so as not to reduce the load capacity current tape guide in a saddle coil.

Associated with the execution of the coil winding mainly who define the company should see in particular, in that it is possible to achieve in the working conditions of effective use of superconducting material ready tape conductors, because the straight part of the coil lie in the area in which you can achieve greater power when quantitatively equal use of the material tape conductors. In addition, it becomes possible compact arrangement of the windings so that it can be achieved by a correspondingly smaller diameter region, forming a tubular side surface.

Corresponding to the invention of the coil winding is distinguished, in particular, the fact that at least her one conductor in the parts of the winding on the mechanical side is its flat side in a special way inclined relative to the normal to the side surface in the direction toward the center of the winding bobbin winding. With such orientation of the conductor can be avoided, so that when forming the windings appeared unacceptable stretching of the conductor.

A preferred form of execution corresponding to the invention of coil winding extend from the respective dependent claims. When this form of the coil winding can be combined with the features of one of these dependent claims or preferably also with those of several relevant dependent the of claims.

Thus, the coil winding may particularly preferably be performed with each sensitive to stretching band superconductor. Under sensitive to stretching of the superconductor should be understood in this connection, each pre-fabricated superconductor, which, after its manufacture, when mounting a saddle coil according to the method he would have been stretching or bending, which would lead to a significant deterioration of its superconducting properties, in particular its density critical current Iwithon at least 5% compared to the unexpanded state. The corresponding risk, in particular, in the case of new superconductors with high critical temperature Twithon the basis of oxide ceramics. Coil winding can therefore be performed preferably with at least one superconductor with a high critical temperature Twithmaterial BPSCCO or YBCO.

Instead, at least one tape superconductor can be formed also with superconducting material - magnesium diboride MSK2.

Preferably at least one tape superconductor to perform coil winding may have a characteristic shape factor (width w/thickness (d) at least 3, preferably at minicamera 5. With such superconductors can now make bobbin winding expressed celovitosti without fear of deterioration of their superconducting properties.

Tubular side surface to form a tube with a round or elliptical cross-section, in particular a cylindrical lateral surface (specifically or fictitious).

When this tubular side surface can be formed by carrying winding of the tubular body. Instead, the coil winding can be performed also self-supporting. In the latter case, under the tubular side surface means only fictitious, imaginary surface.

If necessary, the tubular side surface may also be formed pipe with curved axis (concrete or imaginary) without requiring the appearance of unacceptable movements of the conductor. That is relevant to the invention measures is not limited to a saddle-shaped coil windings with straight side sections of the winding.

In connection with the avoidance of invalid extensions/bends superconductor preferably provide, to the corresponding length of the perimeter in a saddle shape differed from that of the flat coil at the maximum of 0.4%, preferably at most 0.3 percent. Below this value there is no fear of a gradual deterioration of parameters relates the flax superconducting properties of the conductor.

In General, the coil winding has a radial height of at least 10% of pipe diameter to have expressed jedlovinou. Preferably the radial height is at least 30% of pipe diameter.

Preferably the coil winding can be installed in a rotating machine or the accelerator magnet, such as magnet portal accelerator (Gantry), or to form part of this device. These devices require the winding with a strong jedlovinou.

Related to the method of manufacturing coil winding problem is solved by the measures following from paragraph 16 of the claims. According to this it should provide the following operations method:

- formation of the flat coil shape of the at least one pre-fabricated tape superconductor,

- molding on a tubular side surface of the bending device in a saddle shape by pressing,

- recording of turns in the saddle form.

This method of manufacture with signs of winding flat coil winding and subsequent forming a saddle coil winding is associated with the advantage that the flat winding technique can be performed in a simple way. The corresponding winding machines require only one axis of rotation. In contrast to E. the WMD with the direct production of curved saddle-shaped coil windings would need a more complicated winding machine with at least two axes of rotation. The method therefore allows relatively cheap cost manufacturing winding.

Preferably the method for manufacturing the corresponding coil winding may be additionally carried out as follows.

Thus, in the formation of a flat shape of the coil in the parts of the winding on the mechanical side between adjacent coils can be provided intervals so that during and after deformation, respectively, is almost constant perimeter length of the individual coils.

In addition, when the formation of the flat shape of the coil to distance adjacent turns, you can enter the spacers, which again is removed before the molding operation. Through the use of spacers in the formation of a flat shape of the coil length of the perimeter of the individual coils can be set so that their change in forming in the saddle-shaped coil does not exceed the above limit values.

To fix the coils suitable fill or glue.

The invention is explained further with the help of drawings, showing a preferred form of execution corresponding to the invention of coil windings or devices for their manufacture. In slightly schematized form, the drawings illustrate

- Figure 1 - perspective view of the reel exchange rate is woven type treadmill as the original form corresponding to the invention of the saddle-shaped coil windings,

- 2 - in the perspective view of the arrangement with two saddle-shaped coil windings in their final form,

- 3 and 4 - a first form of execution corresponding to the invention of the saddle coil winding in the form of cross-sectional or longitudinal,

- Figure 5 and 6 in the respective 3 and 4, the representation of another form of execution of such saddle-shaped coil winding,

- 7 - the frontal part winding, shown in Figure 4 saddle coil winding, in magnified form,

- Fig in the diagram, the dependence of the tilt angle of the conductors on the frontal part winding according to Fig.7. from the pole angle,

- Figures 9 and 10 - bending device for producing corresponding to the invention of the saddle coil winding in the top view or in cross section.

The corresponding parts in the drawings are respectively provided with the same reference position.

According to the invention in the manufacture of a saddle coil winding need to be flat or relatively flat shape of the coil type of the treadmill. The appropriate form of the coils are, in General, are known (compare, for example, DE 19943783 A1); example execution figure 1 shows. Indicated there position 2' of bobbin winding has oppositely lying on the longitudinal sides of the sections of the winding 2 is' and 2d', and also passing between the end sides, curved sections of the winding 2b' and 2C'. Winding 2' must be made with one or more tape superconductors. To perform the corresponding coil winding the tape guide, set on edge, i.e. its narrow side to the plane of the winding, is wound around the winding or windings Z, for example around a Central core. The length of the perimeter of the conductor within any coil, passing once through 360° around the center Z or, respectively, by each of the two winding sections on the longitudinal sides 2A', 2d' and winding areas on the face sides 2b' and 2C', must be marked on the drawing, the letter U shaped line. When applying the tape guide both edges of the tape determine, respectively, the perimeter length of U1 or U2 respectively. In the case of a flat winding both the length of the perimeter, of course, equal.

In the following for simplification only refers to the length of the perimeter of the U, and constantly refers to the length of the perimeter U1 and U2 edges.

As the conductive material can in principle be applied to all superconducting materials, in particular those that are sensitive to elongation. So, for example, at least one tape superconductor can be performed with superconducting material is ω MSK 2. For the preferred examples of the implementation of the selected one of the known HTS materials. Winding 2' therefore performed with one or more tape HTS materials, in particular of type (BiPb)2Sr2Ca2CuOx(abbreviation: BPSCCO) or type UVA2C3Aboutx(abbreviation: YBCO). While HTS conductors have a width w, which typically is greater than 3 mm and in most cases is between 3 and 5 mm, the thickness d is much smaller than the width w and is typically less than 0.5 mm is Preferably used HTS conductors with a shape factor (width w/thickness (d) at least 3, preferably at least 5.

On the basis of the flat shape of the coil corresponding to the invention of the saddle coil winding made now so that the two lengths of the perimeter U1 and U2 in the case of the three-dimensional shape of the coil winding are at most a difference of 0.4%, preferably 0.3% or better of 0.2% change length to the length of the perimeter of the flat coil, and also relative to each other. This difference depends on the design of the superconductor and its superconducting properties when bending or stretching. It can, therefore, lie still below the specified value. You can ensure that when considering around the perimeter of the local shall dlinnie or compression tape conductor compared to the flat coil was at most 0.4%, and preferably 0.3% or better of 0.2%. So as respectively to the invention the length of the perimeter of the U of a conductor in a separate coils compared to the saddle-shaped coil winding to be forming from a flat coil winding type treadmill, should remain virtually unchanged, this means a specific task of the individual lengths of the perimeter U for bobbin winding type treadmill. This means that if the relevant invention bobbin winding specifically subject to selection perimeter length for the conductor or conductors in separate orbits is given by the corresponding length of the corresponding loop in a saddle shape and depending on the installed length of the perimeter to the individual coils in a flat form coil type treadmill. This has the consequence that in the form of a coil type treadmill turns of the conductor in the parts of the winding on the mechanical side 2b', 2C' must lie next to each other relatively freely, then there should not be rigidly connected with each other.

In the case shown in Figure 2 layout with two saddle-shaped coils 2 and 3 originate from the known forms of execution of the dipole magnets, which use, for example, magnets for beam control in accelerators for high energy physics. The appropriate location is the best is also the rotor of the electric machine. However, a single saddle-shaped coil winding are located on the cylindrical side surface of the Mf, which is formed, for example, hollow cylinder 4. If you can refrain from a similar hollow cylinder as a holder for the coil windings, the side surface of Mf should be considered only as an imaginary lateral surface". Each of the coil windings 2 and 3 is at the same time going in the direction of the axis of the hollow cylinder And the straight sections of the winding 2A, 2d (not shown) or, respectively, 3A, 3d (not visible), and curved, forming a frontal part winding winding areas 2b, 2C or 3b, 3C on the opposite end sides.

In the following based on the size of the forms of execution such saddle-shaped coil windings, which follow from Figure 3-7. According to Figure 3 and 4, for example, the selected coil winding 3 contains the straight sections of the winding 3A axial length G and the three-dimensional curved frontal part winding end sections of the windings 3b and 3C, respectively, the axial length L. the Coil winding is located on the cylindrical side surface Mf of the diameter D. In this form of execution in pairs 3, 4 and 5, 6 are basically the height h of the saddle-shaped coil winding 3. The value h represents a maximum value to which the windshield hour and winding up of the plane of initial coil winding type treadmill or respectively from the longitudinal plane of the coil sections before and after the formation of a saddle shape. This value should, in General, be at least 10% of the diameter D of the pipe with a tubular side surface Mf and may, for example, be at least 40% of this value. According to the exemplary embodiment according to Fig 3 and 4 the value of h≈1/2·D; that is winding down its external coils Wiin the middle, i.e. at the equator cylindrical surface. In contrast, according to Figure 5 and 6, the cylindrical side surface Mf wrapped conductors designated 13 saddle coil winding only so that its outermost coils of Wilie above the plane of the equator of the cylinder. So here the radial height of the winding h is less than D/2. It is preferable to choose the radial height h of at least 10% of the pipe diameter D.

The neckline to both pairs 3, 4 and 5, 6 tape HTS conductor is indicated by position 5. With it the corresponding saddle-shaped coil winding is made so that its narrow side 5A facing the cylindrical side surface Mf (compare, in particular, Figure 3 and 5).

As follows from Figure 3-6, individual HTS conductors at the point of the top end sections of the winding 3b, 3C or, respectively, the end parts of the winding are not exactly vertically on the cylindrical side surface Mf, a deflected from the normal N to the surface at the angle β inwards towards the centre of the winding Z. It is I who is the consequence of the relevant invention perform bobbin winding.

Shows the geometry of the coil is assigned to a rectangular x-y-z coordinate system with the x axis directed in the Equatorial plane, the y axis vertical to the z-axis in the axial direction of the cylindrical lateral surface (compare Figure 3 and 4).

Below are more detailed reasoning to mathematical descriptions of the relevant geometry of the coil.

Form the end parts of the winding is given due to the fact that the three-dimensional spatial curve of the tape conductor is defined due to the fact that POLYSLIP (General case) or, respectively, the semi-circle (a special case of powellites with two equal axes) deployed on a cylindrical surface of diameter D. POLYSLIP is the exact form of the frontal part winding flat coil before bending. Due to this conserved lengths of the perimeter.

For Windows Explorer, which is in direct parts removed by the angle Θ from the pole (the direction of the axis, the first axis of the ellipse is

the second axis is equal to b=Li(in the special case of a semicircle true a=b, that is, Li=Θ·Di/2). In the General case this can be expressed in the form

moreover, the factor f describes the ratio of the two axes. This is true for the inner edge of the conductor (the index "i"), which is located on the diameter Qili the DRA D i. The length of the conductor for the inner edge then is thus approximately

The outer edge of the same conductor (index "a") is on the straight parts on the cylinder diameter

and w is the width of the tape guide.

This larger diameter of the cylinder corresponds to the first axis

At the same second axis (ba=bi) this would lead to a longer path of the outer edges compared to the inner edge, that is, the tape guide would be unacceptably stretched. Invalid stretching is avoided due to the fact that in the frontal part winding the tape guide reject or reject the angle β inwards towards the centre of the winding Z. This shortens the second axis to

The tilt angle or tilt of β when this is adjusted so that the outer edge about not undergoing any elongation relative to the inner edge.

When neglecting the stiffness in bending and torsion calculated for this tilt angle is

This has the consequence that the tilt angle or tilt of β is changed to the mechanical end parts of the winding from turn to turn, namely, with a slight increase from the center of the Z-winding outwards. This situation can be seen from Fig.7, showing the cut end section of the winding or the frontal part winding 3b, shown in Figure 4 of the winding 3. For reasons of options for the graphic image, as in figure 4, presents the number of turns of the winding Wj(with j=1...4) is limited by the number "4"and the inner coil conductor marked W1and the outermost turn of the conductor marked W4. At the point of the top end section of the winding 3b and the angle of inclination β1the inner coil conductor W1less than the angle of inclination β4the outer coil conductor W4.

Fold the ribbon conductor is achieved now due to the fact that the conductor in the frontal part winding twisted along its longitudinal axis. This twisting will appear along with a bend as additional mechanical load of the conductor.

The Flexural and torsional known HTS band conductors can be taken into account by using the correction factor k≈0.5 to 1.5, preferably k≈0.5 to 1.0. The calculated tilt angle is then

Fig is shown in figure calculated with equation 8, the tilt angle

βtheoand measured at various saddle-shaped coil windings of the tilt angle β, respectively, depending on the pole the GLA Θ. The basis of a solid line I is the calculated correction factor k=1, based on the dashed line II calculation with correction factor k=0.7 and based dot-dashed line III calculation with correction factor k=0.5. The measured values are plotted as square pixels.

Geometric design of coil winding (cylinder diameter D, the polar angle Θ for the coils, the ratio of the axes e) produce so that the respectively specific to conductors ultimate load

critical radius of curvature Rcor elongation Flexural εCR,

critical twist θwithor elongation under twisting εθ,

are not exceeded. As examples the following ultimate load for the existing trade BPSCCO-guides:

critical bending load: Rc≈3 cm or, respectively, εc≈0.4 percent.

critical torsional load: θwith≈2500°/m or εθ≈0.2 percent.

When the position in the basis of the respective geometry of the coil and a saddle coil winding according to the invention has the following characteristic properties:

- three-dimensional curvature of the end parts of the winding is achieved by a flexible ribbon conductors for flat edges (so-called "good" example is the implementation of the bending and twisting of the conductor along the axis of the conductor;

- locally emerging radii of bending and twisting are within the critical limits of loads, from which there is irreversible damage to the superconducting properties;

- all the coils Wisuperconducting coils lie in the end parts of the winding above the known minimal height h, which is large aperture. The height h depends on the degree of winding of coil winding (see the differences between the pairs 3, 4 and 5, 6);

in the straights winding the flat sides of the ribbon conductors lie approximately in a radial direction relative to the cylindrical coil winding;

- in the end parts of the winding tape conductors have known slope inward at an angle β (see Figure 3-7). This slope varies for different orbits. Due to this tilt is achieved that the outer edge of the tape conductor compared to the "inner edge" of the tape guide does not undergo any invalid extension, which again would lead to irreversible damage to the superconducting properties;

on the way through the frontal part winding HTS tapes separate orbits describe three-dimensional spatial curve. For the inner edge of this three-dimensional spatial curve defined due to the fact that POLYSLIP (General case) or, respectively, polur is g (special case) deployed on a cylindrical surface.

For manufacturing the above saddle-shaped coil winding preferably you can use the following method to separate operations from 1 to 5.

1. In the first operation of the first wound flat coil winding type treadmill. The winding process to produce "dry", i.e. without the addition of filling material. In the end parts of the winding between the coils can be entered if necessary, the spacers (e.g., a flexible film) with a thickness A. the purpose of the spacers is aimed installation extend the length of the wire from one coil to the next. If the internal first coil is at a radius R, the length of the conductor 90° arc is L1=π·R. If this first round second round wound and put distance the spacer thickness D, then the length of the second round is now L2=π(R+Δ+d). The change in length between the coils is thus L2-L1=π(Δ+d). In a given thickness d of the tape guides the spacers thus allow targeted installation length changes.

2. Coil winding in the second operation method is removed from the winding machine and is inserted into the bending device. The bending device of figures 9 and 10 and indicated in General position 7. It contains the bending cylinder 8 with the pin h is d 9, where the first set of flat coil winding 2', and agreed to form the side surface Mf bending cylinder pressure parts 11, 12 for forming coil winding 2. Before bending of the end parts of the winding, first remove the spacers.

3. In the third operation of the method on a flat coil winding 2' lower pressing tools. These instruments are initially formed initially flat coil winding and squeeze it and applying a bending force To the bending surface of the cylinder. Due to this reach the desired geometry of the coil in the shape of a saddle.

4. In the fourth method of coil winding should now be fixed in its curved form. This can be accomplished, for example, using the fill bobbin winding. To avoid gluing the coil winding in the bending device, the surface of the bending device made for example of Teflon, which is not connected with the filling materials. Fixing the coil winding of the alternative can also be made using suitably shaped auxiliary tools that, for example, clamped or glued to the coil winding. Thus, for example, the fill can be made later than the outside of the bending device.

5. Coil winding can finally remove the e from the bending device.

In the case of a saddle-shaped coil winding, made according to the method known tape BPSCCO-material from a flat disc coil until ready filled and removed from the bending device coil winding is not installed no damage of the conductor.

Well by this method can be produced corresponding to the invention of the saddle coil winding also equipped with YBCO coated-conductors. It is also possible that the technology used for the composite complex conductors, in particular conductors type of Rebele, if required large bobbin winding.

In the upstream examples assumed that corresponding to the invention of the saddle coil winding is only an imaginary lateral surface Mf of the extended length of the hollow cylinder, such as, for example, the rotor of the electric machine, motor or generator. Also we can talk about the lateral surface of the magnet, such as high energy physics. The performance of the relevant invention saddle coil winding and method of its manufacture, however, not necessarily limited to the respective side surface. Are also well possible deviating from the exact circular cross-sectional shape of the hollow cylinder forms operacneho section, such as, for example, a more elliptical cross-sectional shape, without requiring the appearance of excessive stretching of superconductors. Direct passage axis And the pipe with the side surfaces of the Mf should not necessarily be followed. In fact, what is known are also shaped pipe with a curved axis, which can be upgraded with the saddle-shaped coil windings, which can be made in accordance with the invention. So under certain accelerator magnets, such as magnets for the so-called "portals" ("Gantrys") accelerators for cancer therapy, used curved coil winding. In this case, the longitudinal to the parent examples taken straight sections of the winding are curved in the plane of the coil, so that the beam particles could move on a circular trajectory. That is, the axis of the tubular side surface which is covered with saddle-shaped coil winding may be also curved.

1. Saddle-shaped coil winding (2, 3, 13), which is formed from a flat shape of the coil (2') type treadmill on a tubular side surface (Mf) so that it contains passing axially on the longitudinal side of the winding areas (2A, 2d, 3A, 3d) and passing between the end sides of the winding areas (2b, 2C; 3b, 3c), forming the end windings and coils (Wi) coil the coil is formed with at least one superconductor tape (5), its narrow side (5A) converted to tubular side surface (Mf), and a saddle-like shape are respectively the length of the perimeter, which is virtually unchanged compared with that of the flat-shaped coil (2'), so that the tubular side surface (Mf) at least one tape guide (5) in coils (Wiin the top plots winding (2b, 2C; 3b, 3C) on the mechanical side of its flat side is tilted at a tilt angle (β) relative to the normal (N) on the tube-side surface (Mf) in the direction toward the center of the winding (Z) coil winding, and the angle of inclination (β1) when lying inside the arc (Wi) is smaller than at lying outside coil (W4).

2. Coil winding according to claim 1, characterized in that it is made with at least one sensitive to stretch the tape superconductor (5).

3. Coil winding according to claim 1 or 2, characterized in that at least one superconductor tape (5) is made from a superconducting material with a high critical temperature Tc.

4. Coil winding according to claim 1, characterized in that at least one tape superconductor is a superconductor (5) with high critical temperature Tcmaterial BPSCCO or YBCO.

5. Coil winding according to claim 1 or 2, wherein by at least one superconductor tape (5) is made from a superconducting material MgB 2.

6. Coil winding according to claim 1 or 4, characterized in that at least one superconductor tape (5) is made with the shape factor (width w/thickness (d) at least 3, preferably at least 5.

7. Coil winding according to claim 1 or 4, characterized in that the tubular side surface (Mf) is formed by a pipe with a circular or elliptical cross section.

8. Coil winding according to claim 1 or 4, characterized in that the tubular side surface (Mf) is a cylindrical lateral surface.

9. Coil winding according to claim 1 or 4, characterized in that the tubular side surface (Mf) is formed by a pipe with a curved axis.

10. Coil winding according to claim 1, characterized in that the tubular side surface (Mf) formed bearing winding of the tubular body.

11. Coil winding according to claim 1, characterized in that the length of the perimeter (U) in the form of the seat is different from that of the flat coil at most 0.4%, preferably at most 0.3%.

12. Coil winding according to claim 1 or 4, characterized in that at least one superconductor tape (5) is made with the shape factor (width w/thickness) of at least 3, preferably at least 5, and the corresponding length of the perimeter (U) in the form of the seat is different from that of the flat-shaped coil thing more is 0.4%, preferably at most 0.3%.

13. Coil winding according to claim 1 or 4, characterized in that the radial height (h) is at least 10%, preferably 30% of pipe diameter (D).

14. Coil winding according to claim 1 or 4, characterized in that at least one superconductor tape (5) is made with the shape factor (width w/thickness (d) at least 3, preferably at least 5, and the radial height (h) is at least 10%, preferably 30% of pipe diameter (D).

15. Coil winding according to claim 1 or 4, characterized in that it is located in a rotating machine or the accelerator magnet, such as magnet portal accelerator.

16. A method of manufacturing a saddle-shaped coil winding (2, 3, 13), which is formed from a flat shape of the coil (2') type treadmill on a tubular side surface (Mf) so that it contains passing axially on the longitudinal side of the winding areas (2A, 2d, 3A, 3d) and passing between the end sides of the winding areas (2b, 2C; 3b, 3C), forming the end windings and coils (Wi) coil winding is formed with at least one superconductor tape (5)that its narrow side (5A) converted to tubular side surface (Mf), and a saddle-like shape are respectively the length of the perimeter, which is virtually unchanged the th as compared to that in the planar shape of the coil (2'), so on a tubular side surface (Mf) at least one tape guide (5) in coils (Wiin the top plots winding (2b, 2C; 3b, 3C) on the mechanical side of its flat side is tilted at a tilt angle (β) relative to the normal (N) on the tube-side surface (Mf) in the direction toward the center of the winding (Z) coil winding, and the angle of inclination (β1) when lying inside the arc (Wi) less than when lying outside coil (W4), and the method includes the following steps, namely:
run flat shape of the coil (2') of the at least one pre-fabricated tape superconductor (5),
forming on a tubular side surface (Mf) bending device (7) in a saddle-like shape by means of pressing, the recording coils (Wiin a saddle-like form.

17. The method according to item 16, wherein for at least one superconductor tape includes a superconductor (5) with high critical temperature Twithmaterial BPSCCO or YBCO.

18. The method according to item 16, wherein the at least one superconductor tape (5) is made with the shape factor (width w/thickness (d) at least 3, preferably at least 5.

19. The method according to item 16, wherein to perform the flat shape of the coil (2') in the field of teaching is tcov winding (2b', 2C') on the mechanical side between adjacent coils provide intervals so that during and after molding is almost constant perimeter length (U) of the individual coils (Wi).

20. The method according to 17, wherein to perform the flat shape of the coil (2') in the parts of the winding (2b', 2c') on the mechanical side between adjacent coils provide intervals so that during and after molding is almost constant perimeter length (U) of the individual coils (Wi).

21. The method according to p, wherein to perform the flat shape of the coil (2') in the parts of the winding (2b', 2C') on the mechanical side between adjacent coils provide intervals so that during and after molding is almost constant perimeter length (U) of the individual coils (Wi).

22. The method according to item 16, wherein to perform the flat shape of the coil (2') in the parts of the winding (2b', 2C') on the mechanical side between adjacent coils provide intervals so that during and after molding is almost constant perimeter length (U) of the individual coils (Wi), and that to perform the flat shape of the coil to a distance of neighboring coils (Wi) enter the spacers, which again is removed before the step of molding.

23. The method according to item 16 or 19, characterized in that the for fixing the coils (W i) fill or glue.



 

Same patents:

FIELD: electricity.

SUBSTANCE: thermo stabilised superconductors are implemented in the shape of matrix from metal or alloy, containing fibers of superconducting material and combination of rare-earth metals with extremely high heat capacity at low temperatures. At that superconductor contains at least two metallic tubes of unconditioned cross-section filled by combination of rare-earth metals and distance between tubes is not less then two tube linear dimensions. Superconductor has external envelope made from metal with high conducting properties. Tubes with combination of rare-earth metals can be distributed either by section of conductor as in matrix or by envelope.

EFFECT: extension of superconductor capabilities by means of increasing of its heat-absorbing abilities.

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FIELD: electric engineering.

SUBSTANCE: in accordance to method for changing amount of energy in magnetic system, current is measured in at least one pair of windings of magnetic coil, while changed in one coil is electric current of one direction of current density vector, and in another winding electric current of opposite direction of current density vector is measured. Device contains magnetic coil containing at least one magnet with winding. Magnetic system contains at least one more winding, while at least two windings are made with possible connection as one pair of windings and are made with possibility of joint powering by currents of opposite directions, while it is possible to inject energy into at least one pair of windings and to eject energy from at least one pair of windings.

EFFECT: increased efficiency of parameter changes in magnetic system.

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FIELD: electrical engineering, superconducting electromagnets for their change-over to sustained current operation with the use of detachable current conductor.

SUBSTANCE: the device has a superconducting coil cooled in a vacuum container. The first current conductor is fixed inside the vacuum container. Its one end is connected to the superconducting coil, and the other has a contact section of the wire. The second current conductor passes through a through hole provided in the vacuum container with keeping of leak-proofness. Its one end is connected to the wire line leading to the outer source of exciting current, and its other end has a section of disconnection/connection, it is installed on the contact section of the wire for detachment. The device is made for change over to sustained current operation by means of the current fed from the outer source of exciting current, when the mentioned section of connection/disconnection is in contact with the wire contact section, and can maintain the sustained current operation after its disconnection from the wire contact section.

EFFECT: provided effective, precise and safe connection of the current conductor of the superconducting magnet.

14 cl, 8 dwg

FIELD: applied superconductivity.

SUBSTANCE: proposed composite superconductor that can be used to manufacture superconductors for superconducting windings suffering heavy mechanical loads (at operating pressure across conductor higher than 100 MPa) as well as for superconducting windings and devices operating under variable conditions, such as superconducting inductive energy storage devices, dipole and quadrupole magnets for charged particle accelerators, has superconducting material fibers, matrix of high-conductivity metal, such as copper and rare-earth intermetallide possessing high thermal capacity at low temperatures. Composite superconductor is provided with metal sheath accommodating rare-earth intermetallide; mentioned wires and conductor are welded together. Metal sheath can be made in the form of hollow cylindrical conductor or flat strip with hollow interlayer, their hollow spaces being designed to dispose rare-earth intermetallide. Composite superconductor is made in the form of a few multiple-fiber composite superconducting wires twisted around hollow cylindrical conductor accommodating rare-earth intermetallide. Composite superconductor can be made in the form of flattened single-lay strand of several multiple-fiber composite superconducting wires and several hollow cylindrical conductors of same diameter accommodating intermetallide which alternately vary within strand. Rectangular-section conductor is made of high-conductivity metal and has longitudinal groove.

EFFECT: enlarged functional capabilities.

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FIELD: high-voltage charged particles accelerators.

SUBSTANCE: device has high-voltage rectifier transformer, including high-voltage transformer, consisting of magnetic duct, rods with primary winding of which are encased in electrostatic screens, sectioned secondary winding, rectifier elements, inserted between sections of secondary winding, accelerator pipe with charged particles source, safety screen, inside safety screen compensation coil is mounted with possible presence of axial component of magnetic field in counter-phase to field vector, moving charged particles beam from accelerator pipe axis. Correction method includes forming by high-voltage rectifier transformer of high-voltage accelerator potential, initiation of charged particles flow in charged particles source, acceleration of charged particles flow in sectioned accelerator pipe, forming of beam of charged particles, while additional magnetic field is formed using compensating coils, mounted on external surface of safety screen.

EFFECT: broader functional capabilities, higher reliability, simplified construction, higher efficiency.

2 cl, 8 dwg

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EFFECT: enhanced performance characteristics of superconductor windings under variable conditions.

4 cl, 2 dwg

Pulse coil // 2173903

The invention relates to the field of electrical engineering and can be used in the manufacture of the superconducting magnetic system for generating a stationary magnetic fields

The invention relates to a superconducting coil, which increased the stability of the tightly wound superconducting coils and increased resistance to suppression of superconductivity

The invention relates to the field of cryogenic electrical engineering, in particular to the design of superconducting coils for electromagnetic devices

FIELD: electricity.

SUBSTANCE: pair of guide elements (65, 66) with the shape of disks is adjacent to the end surfaces of conducting wire (61) that are opposite to axis (L), at that the wire is wound in coil with application of detachable assembling accessory. Guide elements (65, 66) are spring-loaded in direction to each other by means of fixation of part of conducting wire (61) to the coupling elements (65c, 66c), which are arranged along circumference of pair of guide elements (65, 66). Then assembling accessory is removed from the center of conducting wire (61), at that shape of coil without frame is maintained (46), in which internal peripheral surface of conducting wire (61) is opened. Additionally pair of guide elements (65, 66), which have shape of disks, is spring-loaded in direction to each other by means of conducting wire (61) and, accordingly, there is no need in special spring element.

EFFECT: simplification of design.

3 cl, 7 dwg

FIELD: electricity.

SUBSTANCE: in inductor which is of cylindricity and contains winds, reeled by km parallel wires (where k, m - integer, k≥1, m≥1), sources of which are located at one end of its face, and finish - on the other end. Parallel wires are divided into m parallel groups, every of which contains m tandem parts, reeled to by parallel wires and located at m floors and m concenters, one of which is inside, and other - outside. Parts, forming different groups, are interchanged in axial and radial direction. Each group of parallel wires is located on every floor and all concenters, at that m - quantity of groups, concenters, floors in inductor and parts in every of group, m - integer ≥ 2; k - quantity of parallel wires in group, k - integer ≥1. According to the second independent claim, it is introduced method of inductor manufacturing.

EFFECT: expansion of features by means of usage at high heavy current.

4 cl, 2 dwg

FIELD: electrical engineering.

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EFFECT: enhanced precision of coil manufacture.

1 cl, 4 dwg

The invention relates to the field of electrical engineering and can be used, for example, the manufacturing of circuit boards with integrated circuits

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The invention relates to a method of manufacturing electronic modules, namely transponders and cards with integrated circuit on the basis of printed circuits

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The invention relates to the field of power industry and electrical engineering and can be used in the manufacture of transformers

The invention relates to electrical engineering, and in particular, to high-frequency transformers, low power, design and production

FIELD: electrical engineering.

SUBSTANCE: core of proposed coil that can be used in radio receiver preselectors where tuning frequencies are selected by means of set of adjustable capacitors has toroidal cores abutting against one another which are provided with radially directed and aligned grooves for passing last turn of coil wound on both toroidal cores, if necessary.

EFFECT: enhanced precision of coil manufacture.

1 cl, 4 dwg

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