Devices and methods for winding magnetic poles for the core of a generator.

Abstract

This document discloses an apparatus (1) and a method for winding a coil (B) of a conductor (W) around a corresponding radial magnetic pole (10c) of a core (10) of a generator assembly. The apparatus (1) includes a conductor distributor arm (11) that rotates approximately around the radial magnetic pole (10c) to distribute the conductor (W) forming a turn (S). Furthermore, a first conductor guide (32) is provided, positioned at a first axial end (A) from the normally wound radial magnetic pole (10c) and moved along a direction of movement (132a, 132b) parallel to the radial direction (110c) of the radial magnetic pole (10c) to form the corresponding coil (B). Additionally, second and third conductor guides (36, 37) are provided, positioned in first and second slots (10a, 10b) adjacent to the radial magnetic pole (10c) wound on opposite sides, respectively. The second and third wire guides (36, 37) are positioned relative to the first wire guide (32) such that at least corresponding channels (38a, 38b, 38′a, 38′b) are formed for the wire conductor W. Furthermore, the device (1) includes at least first and second guide portions (35a, 35b, 35′a, 35′b) that are coplanar with each other to at least partially close the channels (38a, 38b, 38′a, 38′b) during winding of the radial magnetic pole (10c).

Description

Technical Field

[0001] This invention relates to coils in a wound generator. More specifically, the solution of this invention relates to magnetic poles of a wound core, wherein slots for receiving the coil have external openings. Background Technology

[0002] As is well known, the turns of a generator coil are wound by at least one wire distributor arm, which is capable of feeding wires onto the surface of a wire guide member, the wires extending on the surface to reach predetermined positions in slots. The final winding result requires the wires of each turn to be deposited in the slots according to a predetermined arrangement, and therefore is not random.

[0003] The turns of the coil are positioned during winding according to the required placement to optimize the amount of conductor wire occupying available space in the slot. Furthermore, the turns should not cross each other or be excessively deformed locally to avoid damaging the conductor insulation.

[0004] The arrangement of turns around the magnetic pole involves gradually winding a series of turns in the radial direction of the core. A turn is wound along the side and along the axial end of the magnetic pole, and these turns together define a groove. A series of turns wound in this manner forms a layer of turns. Within this layer, the turns have what is called "radial layering." In other words, the turns are arranged adjacent to each other in the radial direction of the wound magnetic pole.

[0005] To complete the coil, additional layers are formed. In each additional layer, the turns are again wound next to each other in the radial direction of the magnetic poles. Each additional layer is formed on top of the previously wound layers, thus creating a continuous layer positioning in the angular direction of the core, forming what is called "layering of turns".

[0006] Within the same slot, there will be positioning portions (turns) of two coils. Each portion of the coil will be wound around the poles adjacent to the other two magnetic poles. Therefore, there are specific portions of slot space occupied by the corresponding coil portions, and specific portions of slot space that remain empty. This empty portion is the boundary region between the portions of the coil wound in the same slot. The empty portion of the slot is radially aligned with the slot opening through which the wire passes during winding to enter the slot.

[0007] In this case, winding may require the coil leads to be connected to the termination structure of the core, such as hooks or other devices, where the wire connectors need to be connected, for example, by winding or insertion techniques.

[0008] For example, WO2013 / 008183 describes a machine and method for winding magnetic poles for the core of a generator having slots defining magnetic poles with external openings. In this case, a wire distributor arm is provided, which rotates about a radial magnetic pole to distribute wires such that wire turns are formed. The wires are fed upwards through a series of devices to the outlet of the wire distributor arm, and are thus cut off by a group of wire guides.

[0009] like Figure 1 The diagram illustrates a group of wire guides including a first wire guide 32 positioned at opposite ends A and A′ of a coiled magnetic pole 10c and movable during coiling along a direction 132a or 132b parallel to or coinciding with the radial direction 110c. Next, a second wire guide 36 and a third wire guide 37, for example blade-shaped, are provided positioned in corresponding slots 10a and 10b, defined on opposite sides of the coiled magnetic pole 10c and movable during coiling to guide wires W along opposite sides L and L′ of the magnetic pole 10c.

[0010] In fact, during the winding cycle, for example, in... Figure 1 During the clockwise rotation shown, the wire distributor arm and the wire W fed by it are guided by the edge of the second wire guide 32, the edge of the first wire guide 36 and the edge of the third wire guide 37, depending on the angular position of the wire distributor arm to form a turn S around the positively wound radial magnetic pole 10c.

[0011] However, to be precise, if the wire has a large thickness, i.e. in the case of a conductor, then the solution described in WO2013 / 008183 may have some drawbacks.

[0012] In fact, such as Figure 1The diagram illustrates that corresponding channels 38a and 38b exist between the first wire guide 32 and the second wire guide 36, and between the first wire guide 32 and the third wire guide 37, for the wire conductor W. During the winding cycle, the rotation of the wire distributor arm creates a channel for the wire conductor W from the second wire guide 36 to the first wire guide 32, i.e., from the case where the wire conductor (indicated by W1) is correctly stretched when positioned to contact the edge 36a of the second wire guide 36, to the case where the wire conductor (indicated by W2) leaves the edge 36a of the second wire guide 36 and, particularly due to its larger cross-section, loses proper tension, bends, and thus enters the aforementioned channel 38a defined between the second wire guide 36 and the first wire guide 32. Therefore, also at the following moments, the wire conductor (indicated by W3) is not correctly stretched and therefore cannot be accurately positioned around the positively wound magnetic pole 10c. Therefore, the conductor W does not position itself in the correct layering position, thus creating intersections, which also impairs the positioning of the continuously wound turns S, and therefore the correct layering of the coil wound around the magnetic pole 10c is inevitably damaged.

[0013] Other solutions with similar drawbacks are also described in JP2012 / 135077, EP3306784 and EP3624315. Summary of the Invention

[0014] Therefore, the objective of this invention is to provide a device for winding the magnetic poles of the core of a generator, which overcomes the aforementioned disadvantages of the prior art and, more precisely, ensures that the conductor has the correct tension during the winding of the coil turns and is thus correctly positioned in the slot using a conductor distributor having a rotational trajectory for feeding the winding conductor.

[0015] Another objective of the present invention is to ensure that the wires wound on the magnetic poles of the core are correctly positioned in all available areas of the wire turn groove.

[0016] Another objective of this invention is to ensure maximum filling of the core slots.

[0017] Another objective of this invention is to provide a winding solution that is fast in the time required to wind the core coil.

[0018] Another objective of this invention is to achieve the connection between the coil leads and the core termination structure.

[0019] One object of the present invention is to provide a method for winding magnetic poles for the core of a generator with the same advantages.

[0020] These and other objectives are achieved by a device for winding a plurality of coils (B) of a conductor (W) around corresponding radial poles of a core of a generator assembly arranged in a corresponding radial direction, the coils (B) being formed of a plurality of turns of the conductor, each of the turns being formed of two opposing longitudinal stretching sections, wherein each longitudinal stretching section is arranged to be deposited in a corresponding groove, and the two stretching sections of the turns of the conductor are each deposited adjacent to a corresponding first axial end (A) of the radial pole, the device comprising:

[0021] - A wire distributor arm, which is arranged to rotate around a radial magnetic pole each time to distribute the wire conductor (W) forming the turn (S) of the wire conductor;

[0022] - A first wire guide is arranged to be selectively positioned at the first axial end (A) of the radial magnetic pole each time and to move in a direction of movement parallel to the radial direction of the radial magnetic pole during winding to form a corresponding coil (B).

[0023] - A second conductor guide is arranged to be positioned and moved in a first slot adjacent to the radially wound magnetic pole;

[0024] - A third wire guide is arranged to be positioned and movable in a second slot adjacent to the positively wound radial magnetic pole, the second wire guide and the third wire guide being positioned relative to the first wire guide such that at least a corresponding channel is formed for the wire conductor (W).

[0025] The first, second, and third wire guides are configured to move separately from each other;

[0026] Its main feature is that at least first and second guide portions are provided, the first and second guide portions being configured to protrude from the second and the third wire guides toward the first wire guide, respectively, the first and second guide portions being coplanar with each other, and the first and second guide portions being arranged to at least partially close the or each corresponding channel during winding around the radial magnetic pole.

[0027] Other technical features of the present invention are described in the dependent claims that define specific embodiments of the invention.

[0028] According to another aspect of the invention, a method is provided for winding a plurality of coils (B) of a conductor (W) around respective radial magnetic poles of a core of a generator assembly arranged according to respective radial directions, said coils (B) being formed of a plurality of turns (S) of the conductor, each of said turns being formed of two opposing longitudinally stretched sections, wherein each longitudinally stretched section of the conductor turn is positioned in a respective slot, and the two stretched sections of the conductor turn are each deposited adjacent to a respective axial end (A) of said radial magnetic pole; the method includes the following steps:

[0029] - The turns (S) of the wire conductors (W) of the coil (B) are formed by the wire distributor arm, which is arranged to rotate about the radial magnetic pole to distribute the wire conductors (W).

[0030] - Selectively position the first wire guide at the first axial end (A) of the positively wound radial magnetic pole, and move the first wire guide along the radial direction of the positively wound radial magnetic pole;

[0031] - Position and move the second wire guide in the first slot adjacent to the radial magnetic pole that is being wound;

[0032] - Position and move a third wire guide in a second slot adjacent to the positively wound magnetic pole, the second wire guide and the third wire guide being positioned relative to the first wire guide such that at least a corresponding channel is formed for the wire conductor;

[0033] The first, second, and third wire guides are configured to move separately from each other;

[0034] Its main feature is that it further provides the following step: during the winding of the radial magnetic pole, the first or each corresponding channel is at least partially closed by at least first and second guide portions, the first and second guide portions being coplanar with each other and arranged to protrude from the second and third wire guides toward the first wire guide, respectively. Attached Figure Description

[0035] The invention will now be described with reference to the accompanying drawings, which are exemplary and not restrictive, wherein:

[0036] - Figure 1 The prior art solutions are illustrated in a graphical manner to highlight the technical problem solved by the present invention;

[0037] - Figure 2 A device view of some components of a first embodiment of the device according to the present invention is shown in an illustrated manner for use in winding the magnetic poles of the core of a generator;

[0038] - Figure 3 Presented in a diagrammatic way Figure 2 A perspective side view of the device;

[0039] - Figure 4 Presented in a diagrammatic way Figure 3 The moment after the moment Figure 2 A perspective side view of the device;

[0040] - Figures 5A to 5D Demonstrating its use in winding Figure 3 and 4 The device for winding the magnetic poles in the core of the generator to allow for possible successive subsequent moments based on... Figure 2 The cross section of arrow VV;

[0041] - Figure 6A and 6B The second and third wire guides are shown in a perspective side front view according to a possible embodiment of the present invention, respectively. Detailed Implementation

[0042] like Figure 2 The diagram illustrates that the core 10 of the generator includes a defined number of radial magnetic poles 10c, each oriented along a corresponding radial direction 110c. Each radial magnetic pole 10c is laterally defined by two slots 10a and 10b defined on opposite sides of the radial magnetic pole 10c. More specifically, taking into account the orientation of the slots 10a and 10b relative to the central axis 10′ of the core 10, the slots have corresponding outward-facing openings 10a′ and 10b′.

[0043] The turns S wound around the radial magnetic pole 10c are shown in cross-section and illustrated in circles. As is well known, the turns S of the coil B of the conductor W are wound in slots 10a and 10b according to the desired arrangement.

[0044] To be precise, such as Figure 2 As shown in detail, the first tensile layer ST1 of B is positioned against the longitudinal side L and against the axial end A of the radial magnetic pole 10c of the defining grooves 10a and 10b. Figure 2 The diagram shows that the second and subsequent continuous layers ST2 are gradually superimposed on the first layer ST1.

[0045] refer to Figures 2 to 4The device 1 according to the invention includes a wire distributor arm 11. This is moved by a shifting device 110, which will not be described in detail herein, and a means for feeding the wire conductor W upward to reach the outlet of the wire distributor arm 11, as these are known to those skilled in the art and are described in detail, for example, in WO2013 / 008183 in the name of the same applicant.

[0046] In addition, device 1 includes a first guiding member 32 or a wire guide, which in Figure 2 The portion is made transparent to show the wound radial magnetic pole 10c. More specifically, the first wire guide 32 is selectively positioned at the first axial end A of the radial magnetic pole 10c each time, and thus moves along the direction of movement 132a or relative to the direction of movement 132b during the winding of the radial magnetic pole 10c, but the direction of movement is in any case parallel to, and preferably coincides with, the radial direction 110c of the radial magnetic pole 10c so as to form the corresponding coil B.

[0047] Special Reference Figures 2 to 4 The device 1 also includes a second wire guide 36 and a third wire guide 37.

[0048] Specifically, the first wire guide 32, the second wire guide 36, and the third wire guide 37 are configured to move separately from each other.

[0049] More specifically, the second conductor guide 36 is positioned in the first groove 10a and moves along a corresponding movement direction forming a predetermined angle with the radial direction 110c of the coiled magnetic pole 10c, and is preferably radially oriented relative to the core 10 at the aforementioned first groove 10a to guide the conductor W along the side surface L in a desired direction. The third conductor guide 37 is positioned in the second groove 10b and moves along a corresponding movement direction forming a predetermined angle with the radial direction 110c of the coiled magnetic pole 10c, and is preferably radially oriented relative to the core 10 at the aforementioned second groove 10b to guide the conductor W along the side surface L′ in a desired direction.

[0050] For example in Figure 3 and 4 As shown, the second wire guide 36 and the third wire guide 37 may be blade-shaped and extend in length longer than the sides L and L′ of the radial magnetic pole 10c. The second wire guide 36 and the third wire guide 37 may be slidably mounted on corresponding slides not shown in the figures for simplicity, but these are described in, for example, WO2013 / 008183.

[0051] More precisely, such as Figure 2The diagram illustrates that the second wire guide 36 and the third wire guide 37 are positioned relative to the first wire guide 32, specifically spaced apart from each other, thus defining corresponding channels 38a and 38b for the wire conductor W between the first wire guide 32 and the second wire guide 36, and between the first wire guide 32 and the third wire guide 37. However, it is also possible to form only one channel 38a or 38b for the wire conductor W between the second wire guide 36 or the third wire guide 37 and the first wire guide 32. According to the invention, at least a first guide portion 35a and a second guide portion 35b are provided, configured to protrude from the second wire guide 36 and the third wire guide 37 toward the first wire guide 32, respectively. Specifically, for example, in Figure 2 As clearly shown, the first guide portion 35a and the second guide portion 35b are coplanar. More specifically, the first guide portion 35a and the second guide portion 35b are arranged to at least partially close said or each corresponding channel 38a or 38b during the winding of the radial magnetic pole 10c. In this way, the aforementioned technical problem of the prior art solution is solved, because the conductor W cannot be withdrawn and is positioned in the channel 38a or 38b during its movement from the edge 36a of the second conductor guide 36 to the edge 32a of the first conductor guide 32 or thus to the edge 37a of the third conductor guide 37, due to the presence of the aforementioned first guide portion 35a and the second guide portion 35b. Therefore, the technical solution adopted avoids the conductor W from losing proper tension and ensures that it can correctly form the turn S. Therefore, the present invention guarantees the formation of the coil B with high precision even when the conductor W has a high lateral cross-section.

[0052] In display as Figure 2 In one embodiment of the example, first guide portions 35a and 35b are provided, which protrude from the second wire guide 36 and the third wire guide 37, respectively, and are oriented toward the first wire guide 32 in a direction generally orthogonal to the aforementioned radial direction 110c of the ortho-wound radial magnetic pole. More specifically, the guide portion 35a, which protrudes from the second wire guide 36 and is oriented toward the first wire guide 32, at least partially closes the channel 38a at a first side L of the ortho-wound radial magnetic pole 10c, while the guide portion 35b, which protrudes from the third wire guide 37 and is oriented toward the first wire guide 32, closes the channel 38b at a side L′ opposite to the side L of the ortho-wound radial magnetic pole 10c.

[0053] Now for reference Figure 3 and 4The diagram illustrates two consecutive moments in the winding cycle of the radial magnetic poles 10c of the turns S used to form coil B (not shown for simplicity). It is evident that the conductor W exiting from the distributor 11, which rotates clockwise around axis 11′, is... Figure 3 The moment shown in the diagram coincides with the second wire guide 36, and then slides along it and reaches edge 36a. As the wire distributor arm 11 continues to rotate, it reaches... Figure 4 At the moment shown, the conductor W moves from edge 36a to guide portion 35a. The conductor W then moves on edge 32a of the first conductor guide 32 to subsequently position itself on the coiled magnetic pole 10c. The continuous rotation of the conductor distributor arm 11 positions the conductor W on the second guide portion 35b and thus allows it to slide on edge 37a of the third conductor guide 37.

[0054] Alignment of the edges 36a of the second conductor guide 36 and 37a of the third conductor guide 37 with the slots 10a and 10b of the magnetic pole 10c where the conductor W must be positioned ensures minimal bending of the conductor W and minimal tension variation of the conductor W during the formation of the turn S. Simultaneously, the alignment of the edges 36a, 37a, and 32a with each other and with the magnetic pole 10c ensures proper formation of the turn S. As the number of layers ST increases, the turn S is formed very close to the area occupied by the slots 10a and 10b obstructed by the conductor guides 36 and 37. In this case, the edges 36a and 37a deposit the conductor W directly onto the formed turn S because they are adjacent to the edges 36a and 37b. Therefore, it is particularly important to move the edges 36a and 37a precisely along the magnetic pole 10c so that deposition occurs when the turns are adjacent to each other rather than overlapping.

[0055] As in Figures 5A to 5D According to Figure 2 As shown in detail in the cross-sectional view of arrow VV, in a possible embodiment, a fourth wire guide 32' may be advantageously provided. This is positioned at the second axial end A' of the coiled magnetic pole 10c, opposite to the aforementioned first axial end A where the first wire guide 32 is located. During coiling, the fourth wire guide 32' moves along the aforementioned directions of movement 132a and 132b, which are parallel to and preferably coincide with the radial direction 110c of the coiled magnetic pole. Specifically, the fourth wire guide 32' may be configured to move separately from the first wire guide 32, the second wire guide 36, and the third wire guide 37.

[0056] In this regard, it should be noted that the first wire guide 32 and the fourth wire guide 32′ may be two halves of the same wire guide, or alternatively, according to alternative embodiments, may be two different bodies that move symmetrically and synchronously, preferably separately from each other, at two opposite ends A and A′ of the same magnetic pole 10c that are being wound.

[0057] As from Figures 5A to 5D As shown in the figure, where turn S is not shown for simplicity, in addition to the first guide portions 35a and 35b, second guide portions 35′a and 35′b are also advantageously provided. The first guide portions protrude toward the first guide portion 32 from the second guide portion 36 and the third guide portion 37 respectively and are arranged to be at least partially closed and defined between the first guide portion 32 and the second guide portion 36 and between the first guide portion 32 and the third guide portion 37 respectively (see Figure 1). Figure 5A and 5B The aforementioned first channels 38a and 38b, the second guide portions are coplanar with each other and protrude from the second wire guide 36 and the third wire guide 37 toward the aforementioned fourth wire guide 32', respectively. More specifically, each of the second guide portions 35'a and 35'b is at least partially closed and defined between the fourth wire guide 32' and the second wire guide 37, and between the fourth wire guide 32' and the third wire guide 37, respectively (see...). Figure 5C and 5D The corresponding second channels 38′a and 38′b.

[0058] like Figure 6A and 6B As shown, each guide portion 35a, 35′a, 35b and 35′b can be generally a bracket, for example, fixed in a predetermined position in the corresponding wire guide 36 and 37 by screws.

[0059] It should be noted that those skilled in the art will not find it difficult to understand, although... Figures 2 to 6BAn embodiment of the invention is illustrated in the figure, wherein first guide portions 35a, 35b and second guide portions 35′a and 35′b protrude from the second wire guide 36 and the third wire guide 37, respectively. However, it is also possible that guide portions 35a and 35b and / or guide portions 35′a and 35′b may protrude from only one of the second wire guide 36 and the third wire guide 37. In another alternative embodiment not shown, guide portions 35a and 35b may protrude from the first wire guide 32 to at least partially close said or each channel 38a, 38b at the first axial end A. Similarly, another guide portion 35′a, advantageously at least two other guide portions 35′a and 35′b, may be provided, which protrude from the fourth wire guide 32′ to at least partially close said or each channel 38′a, 38′b at the second axial end A′. In other alternative embodiments, for simplicity, the provided or each guide portion 35a and / or 35b, not shown, may be a portion protruding from a guide member different from the first wire guide 32, the second wire guide 36, the third wire guide 37, and the fourth wire guide 32', but in any case, it is configured to at least partially close the wire guides as described above and the... Figures 2 to 6B The corresponding channels 38a, 38b, 38′a and 38′b between the wire guides shown in the figure.

[0060] The above description of specific embodiments will fully disclose the invention from a conceptual perspective, enabling others to modify and / or adapt them to various applications by applying present knowledge. Such embodiments require no further study and do not depart from the invention, and therefore it should be understood that such adaptations and modifications must be considered equivalent to the specific embodiments. Components and materials used to achieve the different functions described herein may have different properties without departing from the scope of the invention. It should be understood that the wording or terminology used herein is for descriptive purposes and not for limitation.

Claims

1. An apparatus (1) for winding magnetic poles of a core of a generator, for winding a plurality of coils (B) of conductors (W) around a corresponding radial magnetic pole (10c) of a core (10) of a generator assembly arranged according to a corresponding radial direction (110c), the coils (B) being formed of a plurality of turns (S) of conductors, each of the turns being formed of two opposing longitudinal stretching sections, wherein each longitudinal stretching section is arranged to be deposited in a corresponding groove (10a, 10b), and the two longitudinal stretching sections of the turns of conductors are each deposited adjacent to a corresponding first axial end (A) of the radial magnetic pole (10c), the apparatus (1) comprising: - A wire distributor arm (11) is arranged to rotate around a radial magnetic pole (10c) each time to distribute the wire conductor (W) forming the turn (S) of the wire conductor. - A first wire guide (32) is arranged to be selectively positioned at the first axial end (A) of the radial magnetic pole (10c) each time and to move along a direction of movement (132a, 132b) parallel to the radial direction (110c) of the radial magnetic pole (10c) during winding to form a corresponding coil (B), the first wire guide (32) having an edge (32a); - A second wire guide (36) is arranged to be positioned and moved in a first slot (10a) adjacent to the radially wound magnetic pole (10c), the second wire guide (36) having an edge (36a). - A third wire guide (37) is arranged to be positioned and movable in a second slot (10b) adjacent to the positively wound radial magnetic pole (10c) and has an edge (37a). The second wire guide (36) and the third wire guide (37) are positioned relative to the first wire guide (32) to form at least corresponding channels (38a, 38b, 38'a, 38'b) for the wire conductor (W). The first, second, and third wire guides (32, 36, 37) are configured to move separately from each other; The device (1) is characterized by providing at least a first guide portion (35a, 35b), wherein the first guide portion is configured to protrude from the second and the third wire guides (36, 37) toward the first wire guide (32); wherein the first guide portions (35a, 35b) are coplanar with each other; and wherein the first guide portions (35a, 35b) are arranged to at least partially close the respective channels (38a, 38b), and are arranged such that when the wire conductor (W) moves from the edge (36a) of the second wire guide (36) to the edge (32a) of the first wire guide (32) or from the edge (32a) of the first wire guide (32) to the edge (37a) of the third wire guide (37) during winding around the radial magnetic pole (10c), the wire conductor (W) is inextricably linked and positioned in the channels (38a, 38b) due to the presence of the aforementioned first guide portions (35a, 35b).

2. The device according to claim 1, wherein the first guide portion (35a, 35b) is arranged to protrude from the second and third wire guides (36, 37) along a direction generally orthogonal to the radial direction (110c) of the orthogonally wound radial magnetic pole (10c).

3. The device according to any one of claims 1 to 2, wherein the first guide portion (35a, 35b) is provided, the first guide portion protruding from the second wire guide (36) and from the third wire guide (37) respectively, and is arranged to at least partially close corresponding channels (38a, 38b) defined between the first wire guide (32) and the second wire guide (36) and between the first wire guide (32) and the third wire guide (37) at opposite sides (L, L') of the positively wound radial magnetic pole (10c).

4. The device according to any one of claims 1 to 2, wherein the first guide portions (35a, 35b) are arranged to at least partially close respective channels (38a, 38b) defined between the first wire guide (32) and the second wire guide (36) and between the first wire guide (32) and the third wire guide (37), wherein a fourth wire guide (32') is further provided, the fourth wire guide being arranged to selectively position at a second axial end (A') of the positively wound radial magnetic pole (10c) opposite to the first axial end (A), and being arranged to... During the winding process, the coil moves along the direction of movement (132a, 132b) parallel to the radial direction of the radial magnetic pole (10c) to form a corresponding coil (B), and wherein at least a second guide portion (35'a, 35'b) is provided, the second guide portion protruding from at least one of the second wire guide (36) and the third wire guide (37) and arranged to at least partially close a second channel (38'a, 38'b) defined between the fourth wire guide (32') and the second wire guide (36) or between the fourth wire guide (32') and the third wire guide (37).

5. The device according to claim 3, wherein the first guide portions (35a, 35b) are arranged to at least partially close respective channels (38a, 38b) defined between the first wire guide (32) and the second wire guide (36) and between the first wire guide (32) and the third wire guide (37), wherein a fourth wire guide (32') is further provided, the fourth wire guide being arranged to be selectively positioned at a second axial end (A') of the positively wound radial magnetic pole (10c) opposite to the first axial end (A), and being arranged to be in operation during winding. The movement is parallel to the radial direction of the radial magnetic pole (10c) along the direction of movement (132a, 132b) to form a corresponding coil (B), and at least a second guide portion (35'a, 35'b) is provided therein, the second guide portion protruding from at least one of the second wire guide (36) and the third wire guide (37) and arranged to at least partially close the second channel (38'a, 38'b) defined between the fourth wire guide (32') and the second wire guide (36) or between the fourth wire guide (32') and the third wire guide (37).

6. The device according to claim 5, wherein the second guide portions (35'a, 35'b) are arranged to protrude from the second and the third wire guides (36, 37) toward the fourth wire guide (32') and are arranged to at least partially close the respective second channels (38'a, 38'b) defined between the fourth wire guide (32') and the second wire guide (36) and between the fourth wire guide (32') and the third wire guide (37).

7. The device according to claim 4, wherein the second guide portions (35'a, 35'b) are arranged to protrude from the second and the third wire guides (36, 37) toward the fourth wire guide (32') and are arranged to at least partially close the respective second channels (38'a, 38'b) defined between the fourth wire guide (32') and the second wire guide (36) and between the fourth wire guide (32') and the third wire guide (37).

8. A method for winding magnetic poles of a core of a generator, comprising winding a plurality of coils (B) of conductors (W) around a corresponding radial magnetic pole (10c) of a core (10) of a generator assembly arranged according to a corresponding radial direction (110c), the coils (B) being formed of a plurality of turns (S) of conductors, each of the turns being formed of two opposing longitudinal stretching sections, wherein each longitudinal stretching section of the conductor turn is positioned in a corresponding slot (10a, 10b), and the two longitudinal stretching sections of the conductor turn are each deposited adjacent to a corresponding first axial end (A) of the radial magnetic pole (10c); the method comprising the steps of: - The turns (S) of the wire conductor (W) of the coil (B) are formed by the wire distributor arm (11), which is arranged to rotate around the radial magnetic pole (10c) to distribute the wire conductor (W). - The first wire guide (32) is selectively positioned at the first axial end (A) of the positively wound radial magnetic pole (10c) and the first wire guide (32) is moved along a moving direction (132a, 132b) parallel to the radial direction (110c) of the positively wound radial magnetic pole (10c), the first wire guide (32) having an edge (32a); - Position and move a second wire guide (36) in a first groove (10a) adjacent to the radial magnetic pole (10c) that is being wound, the second wire guide (36) having an edge (36a); - Position and move a third wire guide (37) with an edge (37a) in a second groove (10b) adjacent to the positively wound magnetic pole (10c), the second wire guide (36) and the third wire guide (37) being positioned from the first wire guide (32) to form at least corresponding channels (38a, 38b) for the wire conductor (W). The first, second, and third wire guides (32, 36, 37) are configured to move separately from each other; The method is characterized by providing the following additional step: during the winding of the radial magnetic pole (10c), the respective channels (38a, 38b) are at least partially closed by first guide portions (35a, 35b), the first guide portions being coplanar with each other, wherein the first guide portions are arranged to protrude from the second and the third wire guides (36, 37) toward the first wire guide (32), respectively, and are arranged in such a way that when the wire conductor (W) moves from the edge (36a) of the second wire guide (36) to the edge (32a) of the first wire guide (32) or from the edge (32a) of the first wire guide (32) to the edge (37a) of the third wire guide (37) during the winding of the radial magnetic pole (10c), the wire conductor (W) is irremovable and positioned in the channels (38a, 38b) due to the presence of the first guide portions (35a, 35b).

9. The method of claim 8, wherein the closing step is performed by at least the first guide portion (35a, 35b) protruding from the second and third wire guides (36, 37) and oriented toward the first wire guide (32).

10. The method of claim 8, wherein the closing step is performed by the first guide portion (35a, 35b) protruding from the second and third wire guides (36, 37) and oriented along the radial direction (110c) generally orthogonal to the radial direction (110c) of the orthogonally wound radial magnetic pole (10c).

11. The method according to any one of claims 8 to 10, wherein the additional step of defining first channels (38a, 38b) between the first wire guide (32) and the second wire guide (36) and between the first wire guide (32) and the third wire guide (37) respectively at opposite sides (L, L') of the positively wound magnetic pole (10c) by first guide portions (35a, 35b) protruding from the second wire guide (36) and from the third wire guide (37).

12. The method according to any one of claims 8 to 10, further comprising the steps of: selectively positioning a fourth wire guide (32') at a second axial end (A') opposite to the first axial end (A) of the ortho-wound radial magnetic pole (10c), and moving the fourth wire guide (32') along the radial direction (110c) of the ortho-wound radial magnetic pole (10c), and wherein the method further comprises the steps of: - At least a first channel (38a, 38b) defined between the first wire guide (32) and the second wire guide (36) or between the first wire guide (32) and the third wire guide (37) is at least partially closed by at least a first guide portion (35a, 35b) protruding from at least one of the second wire guide (36) and the third wire guide (37). - At least a second channel (38'a, 38'b) defined between the fourth wire guide (32') and the second wire guide (36) or between the fourth wire guide (32') and the third wire guide (37) is at least partially closed by a second guide portion (35'a, 35'b) protruding from at least one of the second wire guide (36) and the third wire guide (37).

13. The method of claim 11, further comprising the steps of: selectively positioning a fourth wire guide (32') at a second axial end (A') opposite to the first axial end (A) of the ortho-wound radial magnetic pole (10c), and moving the fourth wire guide (32') along the radial direction (110c) of the ortho-wound radial magnetic pole (10c), and wherein the method further comprises the steps of: - At least a first channel (38a, 38b) defined between the first wire guide (32) and the second wire guide (36) or between the first wire guide (32) and the third wire guide (37) is at least partially closed by at least a first guide portion (35a, 35b) protruding from at least one of the second wire guide (36) and the third wire guide (37). - At least a second channel (38'a, 38'b) defined between the fourth wire guide (32') and the second wire guide (36) or between the fourth wire guide (32') and the third wire guide (37) is at least partially closed by a second guide portion (35'a, 35'b) protruding from at least one of the second wire guide (36) and the third wire guide (37).

14. The method of claim 12, wherein the method further comprises the following steps: - The first channel (38a, 38b) is at least partially closed by the respective first guide portions (35a, 35b) protruding from the second and third wire guides (36, 37) toward the first wire guide (32); - The second channel (38'a, 38'b) is at least partially closed by the respective second guide portions (35'a, 35'b) protruding from the second and third wire guides (36, 37) toward the fourth wire guide (32').

15. The method of claim 13, wherein the method further comprises the following steps: - The first channel (38a, 38b) is at least partially closed by the respective first guide portions (35a, 35b) protruding from the second and third wire guides (36, 37) toward the first wire guide (32); - The second channel (38'a, 38'b) is at least partially closed by the respective second guide portions (35'a, 35'b) protruding from the second and third wire guides (36, 37) toward the fourth wire guide (32').

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