Coil arrangement and transformer

Abstract

The utility model relates to a coil arrangement structure (10) for power transformer (1), the coil arrangement structure includes: coil (20) is made by pouring resin, support base (40) is used for supporting coil (20), coil block (30) is arranged between support base (40) and coil (20) and coupling device (50) is configured to provide the recess (32) of the interlocking between support base (40) and coil block (30) and extend to coil block (30), wherein, coupling device (50) includes sliding member (52), the sliding member extends to recess (32) and is configured to slide relative to support base (40) along the sliding direction (54), and coupling device (50) includes elastic member (56), the elastic member provides force along the sliding direction (54) and pushes sliding member (52) away from support base (40) and / or pushes to coil block (30).

Description

Technical Field

[0001] This utility model relates to a coil arrangement structure for a power transformer, the coil arrangement structure comprising: a coil; a supporting base for supporting the coil; and a coil block arranged between the supporting base and the coil. Furthermore, this utility model relates to a power transformer having a coil arrangement structure. Background Technology

[0002] In power transformers, the coils of the coil arrangement structure may vibrate during operation due to their relatively large size and weight. Furthermore, the dimensions of the coils can vary over time or depending on the conditions of use. In this regard, the support base and coil blocks provide mechanical stability and, in particular, resistance to vibration and / or dimensional changes. Maintaining sufficient service life for the coil arrangement structure while ensuring mechanical stability is a challenge.

[0003] The aim is to develop a coil arrangement that simplifies the assembly process while ensuring robust mechanical stability and optimal stress distribution. Compared to existing designs, this arrangement would ideally include fewer components, be easier to manufacture, and offer improved stability and performance. Utility Model Content

[0004] The purpose of this invention is to provide solutions for coil arrangement structures for power transformers that offer improved service life, lower production costs, and easier assembly. In particular, the aim is to avoid or reduce the disadvantages of known solutions.

[0005] The objective of this invention is achieved through the features of the independent claims. Preferred embodiments are described in detail in the dependent claims, the specification, and the drawings.

[0006] Specifically, this objective is achieved by a coil arrangement structure for a power transformer. This coil arrangement structure includes: a coil made of, formed of, or comprising casting resin (also referred to as a 'resin-cast coil'); a support base for supporting the coil; a coil block disposed between the support base and the coil; and a coupling device configured to provide a form fit between the support base and the coil block and extending into a recess in the coil block. It is proposed that the coupling device includes a sliding member extending into the recess and configured to slide relative to the support base along a sliding direction, and wherein the coupling device includes an elastic member providing a force along the sliding direction to push the sliding member away from the support base and / or towards the recess and / or towards the coil block.

[0007] In other words, specifically, this invention proposes a coil system for a dry-type transformer, the coil system comprising a coil, a block member, a support member, and a connecting member. The block member is arranged between the support member and the coil. The block member and the support member are connected to each other by a connecting member, which engages with the block member and the support member. The connecting member is at least partially slidably arranged to push against the block member.

[0008] It is advantageous to recognize, through this invention and through the aspects described in this application, that the connecting device can absorb the energy from the vibration of the coil and can absorb the deformation of the coil.

[0009] It is understood in this invention that deformation may occur due to the thermal expansion of the coil, wherein the expansion can be compensated by the connecting device without jeopardizing the functionality of the arrangement. Specifically, the sliding member can slide into and out of the recess, wherein a form fit can be provided in any sliding position.

[0010] The coupling device can be provided using standard parts. Compared to previous solutions, the proposed coil arrangement structure is better suited for use in high-intensity vibration environments and in transformers that provide a large amount of heat. The coupling device can beneficially absorb energy from damping vibrations and the coils.

[0011] Power transformers are known in the art. A transformer typically includes a coil arrangement structure with at least one coil, which can be supported by coil blocks of the coil arrangement structure. Typical coil blocks provide mechanical support for the coil and preferably electrical insulation. The longitudinal axis of the coil is typically arranged vertically. The coil can be supported by coil blocks disposed between the upper end of the coil and a support base, and between the upper end of the coil and another support base. The coil blocks can provide sufficient stiffness to prevent vertical movement of the coil relative to the support base. The transformer can be provided as a single-phase, two-phase, or three-phase transformer. Thus, a transformer may include one, two, or three coils or coil arrangements. Coil arrangements, particularly transformers, can be configured for medium and / or high voltage applications. Coil arrangements, particularly transformers, can be configured for use in distribution applications (e.g., in distribution substations). The coil may have an outer diameter of at least 0.5 m and / or up to 1.5 m. In particular, the outer diameter is at least 0.75 m and / or up to 1.25 m, particularly 1.1 m ± 0.1 m. The length of the coil along the axial direction can be at least 0.5 m and / or up to 2 m. The coil may have a primary coil segment or primary coil side and a secondary coil segment or secondary coil side inside the primary coil segment. A wall may be arranged between the two coil segments. Along the axial direction, the coil may include two or more individual coil members stacked on top of each other, which can form a coil. The coil or coil arrangement may surround or be configured to surround the transformer core. The core may be circular and / or symmetrical in shape along the axial direction and may extend particularly through the coil. The core may not necessarily be symmetrical. The coil, particularly the primary and / or secondary coil side, may correspond in shape to the core. For example, the primary and / or secondary coil side may be circular or elliptical or another shape.

[0012] The term "high voltage" preferably refers to a voltage of 12 kV, 36 kV, 72 kV, or 1100 kV or higher. High voltage preferably refers to a nominal voltage in the range from 12 kV, 36 kV, or 72 kV or higher to 550 kV or 1100 kV (e.g., 145 kV, 245 kV, or 420 kV, or even higher). The term "medium voltage" preferably refers to a voltage of 1 kV, 12 kV, or 36 kV or higher. Medium voltage preferably refers to a nominal voltage in the range from 1 kV, 12 kV, or 36 kV or higher to 72 kV (e.g., 5 kV, 10 kV, 25 kV, or 70 kV).

[0013] The coil is made of or comprises casting resin, and is particularly configured as a resin-cast coil. The coil typically comprises a metal winding cast in epoxy resin. The coil may include casting resin as part of a composite material, such as a composite material comprising casting resin and fibrous material embedded in the casting resin. The fibrous material may be wound, for example, arranged generally parallel to and / or generally along the metal winding.

[0014] A support base is typically configured to support a coil. The support base may support the coil from at least one side. Supporting the coil can be understood in the sense of providing a foundation and / or fixation. The support base may include a support beam. The support base may extend generally obliquely or perpendicular to the axial direction of the coil. The support base may support more than one coil, for example, two or three coils included in a coil arrangement structure.

[0015] A coil block is disposed between a support base and a coil. The coil block may provide at least one indirect connection between the support base and the coil. The coil block may be in indirect or direct contact with the support base and / or the coil. The coil block may provide electrical insulation of the coil relative to ground. The coil block may comprise a generally monolithic structure and / or a block shape. The block shape may at least generally comprise a rigid and / or non-flexible structure, specifically configured to bear loads along at least one direction. The coil block may have two support surfaces facing away from each other.

[0016] The coupling device may be referred to as a component or assembly configured for coupling. The coupling device is configured to provide a form-fit and / or positive fit between the support base and the coil block and extends into a recess in the coil block. Thus, the coupling device provides a connection between the support base and the coil block. For example, the coupling device may extend into and / or penetrate the coil block, and particularly the coil block itself. The coupling device may be arranged to be at least partially movable relative to the coil block, for example, to compensate for coil deformation.

[0017] A sliding member, which may be referred to as part of the coupling device, is configured for sliding. The sliding member extends into the recess, i.e., through the coil. For example, during sliding, the sliding member may extend into the recess to varying depths and / or compensate for changes in the length of the coil. The sliding member may comprise or be composed of a generally rigid material (e.g., metal).

[0018] The sliding member is configured to slide relative to the support base along the sliding direction. The sliding member can be guided by the coupling device and / or the support base to make it movable along the sliding direction. The sliding direction can be segmented or follow an approximately straight line.

[0019] The elastic member, which may be referred to as part of the coupling device, is configured to be elastically deformable and / or elastically compressible. The elastic member is specifically configured to provide a force along the sliding direction. This force can be arranged to push the sliding member away from the support base and / or towards the recess and / or towards the coil block. For example, the sliding member is elastically and slidably retained to move against this force when pushed, so that it can automatically extend into the recess.

[0020] Specifically, the connecting device includes a seat that can be coupled to and / or secured to a support base. The seat can be configured as a support, guide, or bracket for a sliding member. The seat can be screwed into the support base, particularly into an opening in the support base. The opening in the support base may include threads for the seat to be screwed into, wherein the seat has threads corresponding to the threads of the support base. The seat can also be pressed into the support base or into the opening in the support base.

[0021] A sliding member can be configured to slide within a base. The sliding member may include a preferably cylindrical shaft guided in a seat ring and / or a front end extending into a recess, particularly configured to contact (especially contact) the bottom of the recess. The base may have an opening, particularly a cylindrical bore, that extends particularly along the sliding direction. The opening of the base may correspond to the sliding member, particularly to the shaft, so that the sliding member thus slides within and / or is guided by the opening.

[0022] The elastic member may include a spring that provides force along the sliding direction, wherein the force may push the sliding member away from the support base (especially from the base) and / or towards the coil block (especially towards the recess, particularly the bottom of the recess). The spring may surround the sliding member at least in segments. The spring may include, in particular, a disc spring that may be formed as being guided on the sliding member. The disc spring may be guided on a shaft and / or may contact a shoulder of the shaft and / or a shoulder at the front end on one side and a base and / or support base on the other side. The sliding member may be provided with at least one washer (e.g., in contact with the spring).

[0023] The base may include an outer portion configured to engage with a support base, particularly. The base may include an inner portion (e.g., a sleeve) configured to engage with the outer portion, particularly. The inner portion is screwable into the outer portion and is adjustable, particularly along the sliding direction. The inner portion may include an opening, particularly for guiding a sliding member along the sliding direction. The sliding member can be guided through the outer and inner portions. The opening in the inner portion may be larger than and / or correspond to the sliding member. The inner portion may have a front side facing a recess and particularly arranged to contact a resilient member, e.g., directly or indirectly via a washer or at least one washer. The opening may extend through the inner portion. The inner portion may include an engagement section (e.g., opposite the front side) for attaching a screw-in tool. Multi-part bases can improve the adjustability of the coupling, for example, to adapt to various environments.

[0024] The connecting device may comprise, or be composed entirely of, a metallic material, such as steel and / or brass. The base, inner portion, outer portion, sliding member, and / or spring may comprise, or be composed of, this metallic material or different metallic materials. (Multiple) metallic materials can provide structural stability and resistance to failure.

[0025] The base may include locking elements. The locking elements may be configured to reversibly engage with at least two of the outer portion, inner portion, and support base, particularly to prevent movement between the outer portion, inner portion, and / or support base. The locking elements may include pins, bolts, screws, clamps, or the like.

[0026] The coil arrangement structure may include a flexible member. The flexible member may be disposed between the coil block and the coil. The flexible member may be in the form of a pad and / or may be generally flat. The flexible member may contact opposite sides of the coil block and the coil, particularly extending across the surface area on both sides to distribute load. The flexible member may have a thickness of less than 30 mm, less than 20 mm, or less than 15 mm along the axial direction, particularly 10 mm ± 5 mm. The flexible member may include or be made of an electrically insulating material, particularly including rubber, polymer compounds, and / or silicone resin. The flexible member may provide damping and protection to other components of the coil arrangement structure against failure due to vibration.

[0027] The recess can be configured as a blind hole. The recess can be cast into the coil block or machined into the coil block. The blind hole can have a generally cylindrical inner wall. The blind hole can have a flat or tapered bottom. Blind holes can help reduce localized stress on the material during use.

[0028] The recess, particularly the blind hole, may have a shoulder. The shoulder may be annular. The shoulder may face the coupling device and / or may be located on the upper side of the coil block. The shoulder may be configured to accommodate the coupling device, particularly the inner and / or outer portions and / or elastic members, at least segmentally along the sliding direction. The shoulder reduces the space required for the coupling device.

[0029] The coil block may comprise, or be composed of, fiber-reinforced polymer compounds and / or electrical insulating materials. The fiber-reinforced polymer compounds may include glass fibers and / or carbon fibers and / or thermosetting resins, wherein the fibers may be embedded in the thermosetting resin. The coil block may be a monolithically formed casting. The coil block may include ribs extending generally perpendicular to the extensions of the coil. Therefore, the electrical and / or mechanical properties of the coil arrangement structure can be improved. The coil block can also be manufactured at low cost and with increased service life.

[0030] The coil arrangement structure may include another support base for supporting the coil on a side opposite to the support base, such as in a region below the coil. The coil arrangement structure may include another coil block disposed between the other support base and the coil. The coil arrangement structure may include another flexible member disposed between the other coil block and the coil. The support base and the other support base may be connected, for example, via a rod extending along the coil. Therefore, the mechanical stability of the coil arrangement structure can be improved.

[0031] Two or more, particularly three or four coil blocks, may be provided, and these coil blocks are distributed along the axial end face of the coil and / or along the circumferential direction of the coil. The distribution of the coil blocks on the axial end face may be approximately equidistant from each other; for example, the coil blocks may include approximately the same distance from each other along the circumferential direction. The coil blocks may include different distances from each other, for example, in cases where the transformer core shape is asymmetrical or depending on the specific design. Each of the two or more coil blocks may be assigned to one or more coupling devices. The coil block may have two or more recesses, wherein each of the two or more recesses of the coil block may be assigned to a coupling device. For example, each coil block may be coupled to a support base by means of at least two coupling devices. This ensures that the support is evenly distributed around the coil, thereby improving its stability and reducing stress points.

[0032] This objective can be further achieved by a dry-type transformer, which includes a coil arrangement, particularly wherein a support base of the coil arrangement can be configured to be positioned on top of a coil of the coil arrangement. The dry-type transformer may include two or three coils, particularly arranged in a row.

[0033] In this disclosure, the term 'or' may be replaced by 'and / or'. Therefore, the use of 'or' does not necessarily mean that only an alternative has been named. Attached Figure Description

[0034] These and other aspects of this invention will be apparent from and illustrated by reference to the embodiments described below.

[0035] In the attached diagram:

[0036] Figure 1 A portion of a dry-type transformer is shown in perspective.

[0037] Figure 2 A portion of another dry-type transformer is shown in perspective; and

[0038] Figure 3A -B indicates the presence of a dry transformer (e.g., Figure 2 A sectional view (A) and an exploded view (B) of the connection device to be used in the coil arrangement structure of a dry-type transformer.

[0039] List of reference numerals

[0040] 1. Power Transformer 10-Coil Arrangement Structure

[0041] 20. Coil 22. Outer diameter 24. Primary coil side 26. Wall 27. Separator wall 28. Secondary coil side

[0042] 30 coil block 32 concave part 34 top shoulder part 36 bottom part

[0043] 40 Support base 42 Opening

[0044] 50 Connecting device; 52 Sliding member; 54 Sliding direction; 56 Elastic member; 58 Base; 60 External part

[0045] 61 Protrusion 62 Inner section 64 Opening 66 Front side 68 Joint section

[0046] 70 Locking component; 72 Shaft; 74 Front end; 76 Shoulder; 78 Spring; 79 Washer

[0047] 80 flexible component, 82 thickness Detailed Implementation

[0048] In describing the structural features of this utility model, the description includes procedural or methodological aspects; these structural features can be well understood in this manner. It should be emphasized to the reader that such structural features may be readily copied from the described context, or without problems of intermediate generalization, to form aspects of this utility model. It should also be emphasized to the reader that any structural features described below can be understood as aspects of this utility model to distinguish them from known solutions, although they may be extracted from the context.

[0049] Figure 1 and Figure 2 The dry-type transformer 1, including the coil arrangement structure 10, is shown in partial detail, wherein a support base 40 is configured to be arranged on top of the coil 20. In each case, another support base 40 is arranged opposite to the support base 40 along the axial direction or extension of the respective coil 20.

[0050] exist Figure 1 In the coil arrangement structure 10, the coil 20 includes: a coil 20 (e.g., also referred to as a cast resin coil) made of or comprising cast resin; a support base 40 for supporting the coil on its upper side or top; a coil block 30 disposed between the support base 40 and the coil 20; and a connecting device 50 configured to provide a form fit between the support base 40 and the coil block 30. The connecting device 50 is disposed in the upper region of the coil 20 or at its top.

[0051] The supporting base 40 includes steel beams.

[0052] The coil 20 includes a radially inner secondary coil side 28 and an outer primary coil side 24.

[0053] The coil block 30 is composed of an electrically insulating fiber-reinforced polymer compound. The fiber-reinforced polymer compound includes glass fibers or carbon fibers and thermosetting resins in which the corresponding fibers are embedded.

[0054] The coil arrangement structure 10 includes another support base 40 for supporting the coil 20 on the side opposite to the support base 40, i.e., in the region below or at the bottom of the coil 20. The coil arrangement structure 10 includes another coil block 30 disposed between the other support base 40 and the coil 20, and another flexible member 80 disposed between the other coil block 30 and the coil 20. The support base 40 and the other support base 40 are connected via four vertical connecting rods. Specifically, no other connecting device 50 is provided in the region below the coil 20.

[0055] In other words, specifically, the coil arrangement structure 10 includes a top support base 40 and a bottom support base 40. The coil 20 rests on and is connected to four coil blocks 30, which in turn rest on and are connected to the bottom support base 40. At the top, the coil 20 is supported by four coil blocks 30, which are connected to the top support base 40 via a connecting device 50.

[0056] Therefore, four coil blocks 30 are provided on both sides of the coil 20, and these coil blocks are distributed approximately equidistantly along the axial end face of the coil 20 and along the circumferential direction of the coil 20. The end face of the coil 20 is annular.

[0057] For example, the coil block 30 can be provided by measuring the circumferential distance as an angle around the axial direction of the coil 20, which is approximately 45°.

[0058] The coupling device 50 is coupled to the support base 40 and includes a sliding member 52. Each coupling device 50 engages with a corresponding coil block 30 to provide the aforementioned form fit and can slide along the sliding direction 54 (e.g., when the coil 20 thermally expands in the axial direction or along the sliding direction 54), such that, for example, the sliding member 52 can move with the coil 20 and / or can be pushed from the coil block 30 to move with the coil 20. Each of the four coil blocks 30 at the top of the coil 20 is assigned to two coupling devices 50. Each of the four coil blocks 30 has two recesses 32 for engaging with the corresponding coupling device 50 (see also the diagram showing the described configuration). Figure 3A -B).

[0059] Along the axial direction or along the sliding direction 54, coil 20 comprises two separate coil members stacked on top of each other to form coil 20. For example, coil 20 has an outer diameter 22 of 1.1m ± 0.1m.

[0060] Figure 2 The coil arrangement structure 10 includes three coils 20 (one coil for each of the three electrical phases), to which the power transformer 1 is configured to be electrically connected. Here, the three coils 20 are arranged in a row. Each of the three coils 20 has two separate coil members stacked on top of each other, thus forming a corresponding coil 20.

[0061] Each of the three coils 20 is supported by a top support base 40 and a bottom support base 40. Eight coil blocks 30 are provided for each coil 20, with four coil blocks 30 arranged at the top and four at the bottom. The bottom coil blocks 30 may also be referred to as other coil blocks 30. The top coil blocks 30 are connected to the support bases 40 via a connecting device 50.

[0062] A partition wall 27 is arranged between two adjacent coils 20, which can shield one coil 20 from the other. The partition wall 27 may be electrically insulated. The partition wall 27 may be fastened to one or two support bases 40.

[0063] As in Figure 2 As shown in the detailed view depicted at the top, two connecting devices 50 extend into two recesses 32 of the corresponding coil blocks 30 to connect the support base 40 disposed above the coil blocks 30 to the coil blocks 30. For electrical purposes, each coil block 30 has at least three ribs extending substantially perpendicular to the extension of the coil 20. These ribs may also be... Figure 3A I saw it in the middle.

[0064] exist Figure 2 It can also be seen that the coil block 30 contacts the primary coil side 24 of the coil 20 via an electrically insulating flexible member 80 between the coil block 30 and the coil 20. This member 80 has, for example, a thickness 82 of up to 20 mm, and more particularly a thickness 82 of 10 mm ± 5 mm.

[0065] The coil 20 has a wall 26 located radially between the primary coil side 24 and the secondary coil side 28 of the coil 10. The wall 26 extends axially into the coil block 30, particularly into its support section or gap. The wall 26 extends axially beyond the coil sides 24, 28 on both sides.

[0066] Figure 3A It shows Figure 2 A cross-sectional detail of the coil arrangement structure 10 is shown. It can be seen that two connecting devices 50 extend into the recesses 32 of the coil block 30. The connecting devices 50 and the recesses 32 are similarly designed. Figure 3B An exploded view of one of the connecting devices 50 is shown.

[0067] The connecting device 50 includes a sliding member 52 having a cylindrical shaft 72 and configured to extend at least segmentally into the recess 32. The sliding member 52 is configured to slide relative to the support base 40 along a sliding direction 54, which is at least substantially parallel to the axial extension of the coil 20.

[0068] The connecting device 50 includes an elastic member 56 in the form of a spring 78, which provides force along the sliding direction 54 and pushes the sliding member 52 away from the support base 40 and towards the coil block 30. The spring 78 is a disc spring guided on the shaft 72. When the sliding member 52 is pushed towards the coil block 30, the force provided by the spring 78 acts to push the sliding member 52 in the opposite direction.

[0069] The connecting device 50 includes a base 58 to be connected to a support base 40. A sliding member 52 is configured to slide within the base 58 by means of a shaft 72 guided in a cylindrical opening 64 of the base 58 and a front end 74 extending into a recess 32. The front end 74 may contact the bottom 36 of the recess 32. The bottom 36 of the recess 32 may correspond to the form of the front end 74.

[0070] The spring 78 contacts the shoulder 76 of the front end 74 on one side and the base 58 on the other side (specifically, it contacts the interior part 62 of the base 58 and via the washer 79).

[0071] The base 58 includes an outer portion 60 to be coupled to a support base 40 (i.e., screwed into a threaded opening 42 of the support base 40). The base 58 further includes an inner portion 62 that screws into the outer portion 60 so as to be adjustable along a sliding direction 54 by screwing. The inner portion 62 includes an engagement section 68 for attaching a screwing tool for adjusting the coupling device 50.

[0072] The outer portion 60 has a particularly annular protrusion 61, which is configured to stop against the support base 40. For example, when the coil 20 extends in length, the protrusion 61 may optionally stop against the coil block 30.

[0073] The inner portion 62 includes an opening 64 for guiding the sliding member 52 along the sliding direction 54. The inner portion 62 has a front side 66 that faces the recess 32 and is arranged to contact the resilient member 56 via a washer 79. The opening 64 extends through the inner portion 62. An engagement section 68 is arranged opposite the front side 66 for easy attachment of a screw-in tool from the top.

[0074] The connecting device 50 is made of metallic materials, such as steel and / or brass.

[0075] As in Figure 3B As shown in the exploded view of the coupling device 50, the base 58 includes a locking member 70 (e.g., a clamp) configured to reversibly engage with the outer portion 60 and the inner portion 62 to prevent screwing movement between the outer portion 60 and the inner portion 62.

[0076] The recess 32 is configured as a blind hole. The recess 32 has a shoulder 34 facing the connecting device 50 and is configured to receive the connecting device 50 at least segmentally along the sliding direction 54. In detail, the radial extension of the recess 32 is greater than the base 58, particularly its outer portion 60.

[0077] The top shoulder 34 is specifically chamfered to reduce the risk of collision with the base 58 (e.g., in this case, with the protrusion 61 of the base 58) and mechanically improves access of the base 58 into the recess 32 for its reception.

Claims

1. A coil arrangement structure (10) for a power transformer (1), characterized in that, The coil arrangement structure includes: The coil (20) is made of cast resin. A support base (40) is provided for supporting the coil (20). A coil block (30) is arranged between the support base (40) and the coil (20), and A connecting device (50) is configured to provide a form fit between the support base (40) and the coil block (30) and extends into a recess (32) of the coil block (30), wherein, The connecting device (50) includes a sliding member (52) that extends into the recess (32) and is configured to slide relative to the support base (40) along a sliding direction (54). The connecting device (50) includes an elastic member (56) that provides force along the sliding direction (54) and pushes the sliding member (52) away from the support base (40) and / or towards the coil block (30).

2. The coil arrangement structure (10) according to claim 1, characterized in that, The connecting device (50) includes a base (58) connected to the support base (40), wherein, The sliding member (52) is configured to slide in the base (58) and includes a shaft (72) guided in the base (58) and a front end (74) extending into the recess (32).

3. The coil arrangement structure (10) according to claim 2, characterized in that, The shaft (72) is cylindrical.

4. The coil arrangement structure (10) according to claim 2, characterized in that, The front end (74) contacts the bottom (36) of the recess (32).

5. The coil arrangement structure (10) according to any one of claims 2-4, characterized in that, The elastic member (56) includes a spring (78) that provides the force along the sliding direction (54) and pushes the sliding member (52) away from the support base (40).

6. The coil arrangement structure (10) according to any one of claims 2-4, characterized in that, The elastic member (56) includes a spring (78) that provides the force along the sliding direction (54) and pushes the sliding member (52) away from the support base (40) and away from the base (58).

7. The coil arrangement structure (10) according to claim 5, characterized in that, The spring (78) includes a disc spring that is guided on the sliding member (52) and contacts the shoulder (76) of the front end (74) on one side and the base (58) on the other side.

8. The coil arrangement structure (10) according to claim 7, characterized in that, The disc spring is guided on the shaft (72).

9. The coil arrangement structure (10) according to any one of claims 2-4, characterized in that, The base (58) includes: The outer portion (60), which is connected to the support base (40), and An inner portion (62), which screws into the outer portion (60) to be adjustable along the sliding direction (54), includes an opening (64) for guiding the sliding member (52) along the sliding direction (54), wherein, The inner portion (62) has a front side (66) facing the recess (32).

10. The coil arrangement structure (10) according to claim 9, characterized in that, The front side (66) is arranged to contact the elastic member (56).

11. The coil arrangement structure (10) according to claim 9, characterized in that, The opening (64) extends through the inner portion (62), and / or the inner portion (62) includes an engagement section (68) opposite the front side (66) for attaching a screw-in tool.

12. The coil arrangement structure (10) according to claim 9, characterized in that, The base (58) includes: A locking element (70) is configured to reversibly engage with the outer portion (60) and the inner portion (62) to prevent movement between the outer portion (60) and the inner portion (62).

13. The coil arrangement structure (10) according to any one of claims 1-4, characterized in that, It includes a flexible member (80) disposed between the coil block (30) and the coil (20), wherein, The flexible member (80) has a thickness (82) of less than 30 mm along the axial direction.

14. The coil arrangement structure (10) according to claim 13, characterized in that, The flexible member (80) has a thickness (82) of less than 20 mm along the axial direction.

15. The coil arrangement structure (10) according to claim 13, characterized in that, The flexible member (80) has a thickness (82) of less than 15 mm along the axial direction.

16. The coil arrangement structure (10) according to claim 13, characterized in that, The thickness (82) is 10 mm ± 5 mm.

17. The coil arrangement structure (10) according to claim 13, characterized in that, The flexible component (80) is made of an electrically insulating material.

18. The coil arrangement structure (10) according to any one of claims 1-4, characterized in that, in, The recess (32) is configured as a blind hole.

19. The coil arrangement structure according to any one of claims 1-4, characterized in that, in, The recess (32) has a top shoulder (34) facing the connecting device (50) and is configured to receive the connecting device (50) at least in segments along the sliding direction (54).

20. The coil arrangement structure (10) according to claim 13, characterized in that, It includes: Another support base (40) is used to support the coil (20) on the side opposite to the support base (40) and / or in the region below the coil (20), and Another coil block (30) is arranged between the other support base (40) and the coil (20).

21. The coil arrangement structure (10) according to claim 20, characterized in that, The coil arrangement structure (10) further includes: Another flexible member (80) is arranged between the other coil block (30) and the coil (20).

22. The coil arrangement structure (10) according to any one of claims 1-4, characterized in that, in, Two or more of the coil blocks (30) are provided, and the coil blocks are distributed approximately equidistantly along the axial end face of the coil (20) and along the circumferential direction of the coil (20), and / or The coil block (30) has two or more of the recesses (32), each of the two or more recesses (32) of the coil block (30) being assigned to one of the connecting devices (50).

23. The coil arrangement structure (10) according to any one of claims 1-4, characterized in that, in, Three or four coil blocks (30) are provided, and the coil blocks are distributed approximately equidistantly along the axial end face of the coil (20) and along the circumferential direction of the coil (20), and / or The coil block (30) has two or more of the recesses (32), each of the two or more recesses (32) of the coil block (30) being assigned to one of the connecting devices (50).

24. The coil arrangement structure (10) according to claim 22, characterized in that, in, Each of the two or more coil blocks (30) is assigned to one or more of the connecting devices (50).

25. The coil arrangement structure (10) according to claim 22, characterized in that, in, The coil (20) has an outer diameter (22), wherein the outer diameter (22) is at least 0.5 m and / or up to 1.5 m.

26. The coil arrangement structure (10) according to claim 25, characterized in that, The outer diameter (22) is at least 0.75 m and / or up to 1.25 m.

27. The coil arrangement structure (10) according to claim 25, characterized in that, The outer diameter (22) is 1.1 m ± 0.1 m.

28. A power transformer (1), characterized in that, It includes a coil arrangement structure (10) according to any one of claims 1 to 27, wherein the support base (40) is configured to be arranged on top of the coil (20).

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