Iron core winding structure and processing method thereof

Abstract

The invention relates to the technical field of mutual inductors, and particularly discloses an iron core winding structure and a processing method thereof. The iron core winding structure comprises an iron core and a winding. Wherein the iron core comprises a plurality of iron core segments, each iron core segment comprises an iron core body and an insulating layer wrapping the peripheral wall of the iron core body, a connecting part is arranged on each insulating layer, the iron core segments are detachably connected through the connecting parts, and the iron core bodies of every two adjacent iron core segments are in close contact to form electromagnetic connection; and at least one winding is wound outside the insulating layer of each iron core section. According to the iron core winding structure, the iron core is arranged to be of a detachable multi-section structure, winding of the winding can be conducted through winding equipment with the short winding length, the equipment cost is reduced, the requirement for the strength of the iron core can be lowered, and the machining difficulty of the iron core can be lowered.

Description

Technical Field

[0001] The present invention relates to the technical field of mutual inductors, and in particular to an iron core winding structure and a processing method thereof. Background Art

[0002] At present, low-voltage windings or high-voltage windings on non-closed cores are generally wound using winding equipment. However, each winding equipment is adapted to different core lengths. Therefore, winding equipment with different winding lengths is required for cores of different lengths. The longer the core length, the higher the strength requirements for the winding equipment and the core, resulting in higher production costs. In addition, the traditional non-closed core is processed by manually cutting and pasting one piece at a time. The core has poor strength, is easy to fall off, and has low processing efficiency.

[0003] Therefore, it is urgent to propose a core winding structure and a processing method thereof to solve the above technical problems. Summary of the invention

[0004] According to one aspect of the present invention, the present invention provides an iron core winding structure. By arranging the iron core into a detachable multi-section structure, it is possible to use winding equipment with a shorter winding length to wind the winding, thereby reducing equipment costs, and being able to reduce requirements for iron core strength and reduce the difficulty of iron core processing.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] Core winding structure, including:

[0007] An iron core, comprising a plurality of iron core segments, wherein the iron core segments comprise an iron core body and an insulating layer wrapped on an outer peripheral wall of the iron core body, the insulating layer is provided with a connecting portion, the plurality of the iron core segments are detachably connected via the connecting portion, and the iron core bodies of two adjacent iron core segments are in close contact to form an electromagnetic connection;

[0008] Windings, at least one winding is wound outside the insulating layer of each core segment.

[0009] Optionally, the core winding structure further includes an electrical connection component, and the electrical connection component includes:

[0010] A conductor, buried in the insulating layer and extending along the length direction of the insulating layer;

[0011] A first connector, both ends of the wire in the length direction are provided with the first connector, one end of the first connector is electrically connected to the wire, and the other end extends out of the insulating layer, and the end of the first connector extending out of the insulating layer is used to be electrically connected to the end of the winding on the insulating layer;

[0012] The second connecting member is used to electrically connect two adjacent first connecting members on two adjacent core segments.

[0013] Optionally, the first connecting member is a first nut, and the second connecting member is a connecting plate. The connecting plate is provided with two first connecting holes, and bolts are passed through the first connecting holes and are threadedly connected to the first nut.

[0014] Optionally, a plurality of the electrical connection components are arranged corresponding to each of the insulating layers.

[0015] Optionally, the wire is in a cylindrical or plate shape.

[0016] Optionally, the connecting portion is a second connecting hole passing through both ends of the insulating layer in the length direction, and the second connecting holes on the multiple insulating layers are arranged one by one, and the connecting rod is passed through the corresponding multiple second connecting holes, and the two ends of the connecting rod are connected to fasteners to connect the multiple core segments together.

[0017] Optionally, both ends of the connecting rod are provided with external threads, the fastener is a second nut, and the connecting rod is connected to the second nut via the external threads.

[0018] Optionally, each of the insulating layers is provided with a plurality of the second connection holes, the plurality of the second connection holes are arranged at intervals along the circumference of the insulating layer, and each of the second connection holes is correspondingly provided with a connecting rod.

[0019] Optionally, the insulating layer and the core body form an integrated structure.

[0020] Optionally, a center hole penetrating the core body of each core segment is provided, and the center holes of a plurality of core segments are connected one by one to form a threading channel, and the threading channel is used for passing an external line.

[0021] According to another aspect of the present invention, the present invention further provides a method for processing an iron core winding structure, which is used to process the iron core winding structure described in any of the above technical solutions, and the method for processing the iron core winding structure comprises:

[0022] Prepare the core body;

[0023] Processing an insulating layer and a connecting portion outside the core body by casting to finally form the core;

[0024] Cutting the iron core into multiple sections to form multiple iron core sections;

[0025] Winding at least one winding on the insulating layer of each of the core segments;

[0026] A plurality of the core segments are connected via the connecting portions on the insulating layer.

[0027] Optionally, the specific steps of preparing the core body include:

[0028] Coating a colloid on one side of a sheet substrate;

[0029] Winding the sheet-like substrate on a winding die in a rectangular parallelepiped shape to form an annular core, wherein the annular core is bonded together by the colloid;

[0030] Remove the annular core from the winding mold;

[0031] annealing the annular core;

[0032] Cutting the annular core at two diagonal corners to form two L-shaped core segments of the same shape;

[0033] The two L-shaped iron core sections are fixed back to back to form a T-shaped iron core body.

[0034] The beneficial effects of the present invention are:

[0035] The present invention provides an iron core winding structure, including an iron core and a winding. The iron core includes a plurality of iron core segments, and the iron core segments include an iron core body and an insulating layer wrapped on the outer peripheral wall of the iron core body. With this multi-segment iron core structure, each iron core segment can be taken to a winding device for individual winding, and after the winding is completed, the plurality of iron core segments are connected together through a connecting portion on the insulating layer to form a complete iron core winding structure. Compared with the prior art of directly winding the winding on a longer iron core, a winding device with a shorter winding length can be used, which has lower requirements on the equipment and reduces the equipment cost. In addition, the strength requirements for each iron core segment are not high, which reduces the difficulty of processing the iron core and is conducive to reducing the processing cost of the iron core.

[0036] The core bodies of two adjacent core segments are electromagnetically connected by contact, without the need for additional electrical connection structures, which simplifies the structure and facilitates assembly between the core segments.

[0037] The present invention also provides a method for processing an iron core winding structure, which is used for processing the above-mentioned iron core winding structure. The method for processing the iron core winding structure has simple procedures and the processed iron core winding structure has high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 An exploded schematic diagram of an iron core provided by an embodiment of the present invention;

[0039] Figure 2 An exploded schematic diagram of an iron core winding structure provided by an embodiment of the present invention;

[0040] Figure 3 A schematic diagram of a core winding structure provided by an embodiment of the present invention;

[0041] Figure 4 for Figure 3 A magnified view at point A;

[0042] Figure 5 A cross-sectional view of a core winding structure provided by an embodiment of the present invention;

[0043] Figure 6 A processing flow chart of the core winding structure provided by an embodiment of the present invention;

[0044] Figure 7-Figure 9 A processing flow chart of the core body provided by an embodiment of the present invention;

[0045] Fig.10 for Figure 7 Bottom view of

[0046] Fig.11 for Fig. 9 Bottom view of .

[0047] In the figure:

[0048] 10. annular core; 11. flange; 20. L-shaped core segment; 30. T-shaped core body; 40. threading channel;

[0049] 100, iron core; 110, iron core segment; 111, iron core body; 1111, center hole; 112, insulation layer; 1121, second connection hole; 200, winding; 300, connecting rod; 400, fastener; 500, electrical connection assembly; 510, wire; 520, first connection piece; 530, second connection piece. DETAILED DESCRIPTION

[0050] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0052] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0054] Embodiment 1

[0055] This embodiment provides an iron core winding structure. By setting the iron core into a detachable multi-section structure, it can be wound using winding equipment with a shorter winding length, thereby reducing equipment costs, and can reduce the requirements for the strength of the iron core and reduce the difficulty of processing the iron core.

[0056] Specifically, Figure 1-Figure 3As shown, the core-winding structure includes a core 100 and a winding 200. The core 100 includes a plurality of core segments 110, the core segments 110 include a core body 111 and an insulating layer 112 wrapped on the outer peripheral wall of the core body 111, and a connecting portion is provided on the insulating layer 112. The plurality of core segments 110 are detachably connected through the connecting portion, and the core bodies 111 of two adjacent core segments 110 are in close contact to form an electromagnetic connection. At least one winding 200 is wound around the insulating layer 112 of the core segment 110.

[0057] By setting the iron core 100 into a multi-segment structure, when the iron core 100 is winding the winding 200, each iron core segment 110 can be placed on the winding equipment for individual winding. Since the length of the iron core segment 110 can be set as needed, the winding 200 can be wound using a winding equipment with a shorter winding length. Compared with the prior art in which the winding 200 is directly wound on the entire longer iron core 100, the requirements for the winding equipment are lower, and the equipment cost is reduced. In addition, since the length of the iron core segment 110 is shorter, the strength requirements for the iron core segment 110 are not high, which reduces the difficulty of processing the iron core 100 and helps to reduce the processing cost of the iron core 100. In addition, the iron core bodies 111 of two adjacent iron core segments 110 are electromagnetically connected by contact, without the need to set up an additional electrical connection structure, which simplifies the iron core winding structure and facilitates the assembly of the iron core segments 110.

[0058] It is understandable that the number of the core segments 110 can be set according to the model of the winding equipment and the total length of the core 100 .

[0059] Optionally, the iron core 100 is a non-closed iron core. Further, the shape of the iron core 100 can be set according to actual needs, such as a "T" shape, an "L" shape, etc.

[0060] Further, see Figure 3 and Figure 5 The connecting portion is a second connecting hole 1121 that passes through both ends of the insulating layer 112 in the length direction. The second connecting holes 1121 on the multiple insulating layers 112 are arranged one by one. The connecting rod 300 is passed through the corresponding multiple second connecting holes 1121. Both ends of the connecting rod 300 are connected to the fastener 400 to connect the multiple core segments 110 together. The multiple core segments 110 are detachably connected through the connecting rod 300 and the second connecting hole 1121, and the structure is simple and easy to assemble.

[0061] Optionally, in a possible embodiment, both ends of the connecting rod 300 are provided with external threads, the fastener 400 is a second nut, and the connecting rod 300 is connected to the second nut through the external threads. In this way, when assembling multiple core segments 110, the connecting rod 300 is first passed through the second connection holes 1121 on the multiple insulating layers 112 in sequence, and then the second nuts are screwed on both ends of the connecting rod 300 until the core bodies 111 of the two adjacent core segments 110 are tightly fitted. Threaded connection is easy to assemble and has high connection reliability. In another possible embodiment, the fastener 400 can also be a snap-on structure, which is fixed to the two ends of the connecting rod 300 by snap-on means. In other embodiments, the structure of the fastener 400 can also be set to other, which can be set according to actual needs, and this application does not make specific limitations.

[0062] Further, see Figure 3 and Figure 5 Each insulating layer 112 is provided with a plurality of second connection holes 1121, which are arranged at intervals along the circumference of the insulating layer 112, and each second connection hole 1121 is provided with a corresponding connection rod 300. By providing a plurality of second connection holes 1121 on each insulating layer 112, the connection reliability between the plurality of core segments 110 can be improved, thereby facilitating the improvement of the working reliability of the core winding structure.

[0063] In this embodiment, two second connection holes 1121 are provided on each insulating layer 112. In other embodiments, the number of second connection holes 1121 on each insulating layer 112 may also be three, four, etc., according to actual needs, and this application does not make any specific limitation.

[0064] Furthermore, in each core segment 110, the insulating layer 112 and the core body 111 form an integrated structure. Since the core body 111 is generally made by pasting a plurality of silicon steel sheets, the insulating layer 112 and the core body 111 are set as an integrated structure. On the one hand, the core body 111 can be fastened by the insulating layer 112, reducing the risk of the core body 111 being loose and improving the reliability of the core body 111; on the other hand, the core body 111 can be prevented from moving relative to the insulating layer 112, so as to ensure that after two adjacent core segments 110 are connected, the core bodies 111 can reliably maintain a tight fit.

[0065] Optionally, in this embodiment, the insulating layer 112 is formed on the outer periphery of the core body 111 by injection molding.

[0066] Optionally, the material of the insulating layer 112 may be epoxy resin.

[0067] Optionally, in other possible embodiments, the connection portion may also be a boss disposed on the outer peripheral wall of the insulating layer 112, and bosses are disposed at opposite ends of each core segment 110, and each boss may have an assembly hole, and screws are inserted into the two assembly holes on two adjacent bosses, and the two ends of the screws are connected to nuts. Of course, in other possible embodiments, the structure of the connection portion may also be set to other structures, which can be set according to actual needs, and this application does not make specific limitations.

[0068] Further, see Figure 1 and Figure 4 The core winding structure also includes an electrical connection assembly 500, which is used to realize the series connection and parallel connection between the windings 200 on different core segments 110. Specifically, the electrical connection assembly 500 includes a wire 510, a first connector 520 and a second connector 530. The wire 510 is buried in the insulating layer 112 and extends along the length direction of the insulating layer 112. The first connector 520 is provided at both ends of the wire 510 in the length direction. One end of the first connector 520 is electrically connected to the wire 510, and the other end extends out of the insulating layer 112. The end of the first connector 520 extending out of the insulating layer 112 is used to be electrically connected to the end of the winding 200 on the insulating layer 112. The second connector 530 is used to electrically connect two adjacent first connectors 520 on two adjacent core segments 110.

[0069] Taking the case where the windings 200 on two adjacent core segments 110 need to be connected in series as an example, the method for using the electrical connection assembly 500 is briefly introduced:

[0070] For ease of understanding, the conductors 510 on two adjacent core segments 110 are defined as a first conductor and a second conductor, respectively, and the windings 200 on two adjacent core segments 110 are defined as a first winding and a second winding, respectively.

[0071] When wiring, connect the tail end of the first winding to the first connector 520 at the tail of the first wire, connect the head end of the second winding to the first connector 520 at the head end of the second wire, and then use the second connector 530 to connect two first connectors 520 that are close to each other, so as to achieve electrical connection between the first winding and the second winding.

[0072] Of course, electrical connection between two non-adjacent windings 200 can also be achieved through the electrical connection assembly 500 .

[0073] The core winding structure provided in this embodiment realizes the connection between the windings 200 on multiple core segments 110 by setting an electrical connection component 500. It has a simple structure, is easy to connect, and has high electrical connection reliability.

[0074] Optionally, in this embodiment, the first connecting member 520 is a first nut, and the second connecting member 530 is a connecting plate, and the connecting plate is provided with two first connecting holes, and bolts are passed through the first connecting holes and threadedly connected to the first nuts. The structure is simple, and the installation of the connecting plate is convenient.

[0075] Optionally, a plurality of electrical connection components 500 are provided corresponding to each insulating layer 112. The specific number of the electrical connection components 500 can be provided according to the number of windings 200. The number of the electrical connection components 500 provided corresponding to each insulating layer 112 can be the same or different.

[0076] Optionally, in one possible embodiment, the wire 510 is cylindrical. In another possible embodiment, the wire 510 is plate-shaped. In other possible embodiments, the structure of the wire 510 can also be set to other structures according to actual needs, and this application does not make specific limitations.

[0077] Further, see Figure 5 The core body 111 of each core segment 110 is provided with a central hole 1111 penetrating the core body 111. The central holes 1111 of the multiple core segments 110 are connected one by one to form a threading channel, which is used for threading external lines. When the core winding structure is used in a transformer, the threading channel can be used for threading the lines inside the transformer, which is convenient for routing and is conducive to improving the space utilization inside the transformer.

[0078] Embodiment 2

[0079] This embodiment provides a method for processing an iron core winding structure, which is used to process the iron core winding structure provided in Embodiment 1. The method for processing the iron core winding structure has simple procedures, and the processed iron core winding structure has high reliability.

[0080] Specifically, Figure 6 As shown, the processing method of the core winding structure includes the following steps:

[0081] S100, preparing the core body 111;

[0082] S200, forming an insulating layer 112 and a connecting portion outside the core body 111 by casting, and finally forming the core 100;

[0083] S300, cutting the iron core 100 into multiple segments to form multiple iron core segments 110;

[0084] S400, winding at least one winding 200 on the insulating layer 112 of each core segment 110;

[0085] S500 , connecting a plurality of core segments 110 via connecting portions on the insulating layer 112 .

[0086] The processing method of the core winding structure provided in this embodiment forms an insulating layer 112 and a connecting part on the outer periphery of the core body 111 by casting. On the one hand, it is easy to process, which is beneficial to improve processing efficiency and reduce processing costs; on the other hand, it can make the core body 111, the insulating layer 112 and the connecting part an integrated structure, thereby improving the connection strength between the core body 111 and the insulating layer 112, and between the connecting part and the insulating layer 112, so that after a plurality of core segments 110 are connected via the connecting part, reliable electrical connection can be guaranteed between the core bodies 111 of each core segment 110.

[0087] Optionally, in step S200 , epoxy resin may be used for casting to form the insulating layer 112 and the connecting portion.

[0088] Furthermore, a mold can be specially designed according to the shapes of the insulating layer 112 and the connecting part, and the mold is placed outside the core body 111, and then epoxy resin is poured into the mold, and the insulating layer 112 and the connecting part are formed after demolding.

[0089] It is worth noting that in the solution in which the electrical connection component 500 is buried in the insulating layer 112 , when pouring the insulating layer 112 , the electrical connection component 500 is directly poured into the insulating layer 112 .

[0090] At present, for the "T"-shaped core, the cut silicon steel sheets are generally pasted one by one manually. This processing method is inefficient, the product quality depends on manual labor, and the consistency is poor.

[0091] Based on the above problems, this embodiment also provides a method for processing a "T"-shaped iron core, which greatly improves the processing efficiency and the consistency of the processed "T"-shaped iron core is better.

[0092] Specifically, Figure 7-10 As shown, in the above-mentioned processing method of the core winding structure, the specific steps of preparing the core body 111 are:

[0093] S110, coating a colloid on one side of a sheet-like substrate;

[0094] Optionally, the sheet-shaped substrate may be a silicon steel sheet.

[0095] S120, winding the sheet-like substrate on a winding die in a rectangular parallelepiped shape to form an annular core 10, and the annular core 10 is bonded together by colloid;

[0096] S130, removing the annular core 10 from the winding die;

[0097] S140, annealing the annular core 10;

[0098] The annealing process can remove the stress of the substrate caused by winding, so that each layer of the substrate can fit more closely, which is beneficial to improving the magnetic properties.

[0099] S150, cutting the two diagonal portions of the annular core 10 to form two L-shaped core segments 20 of the same shape;

[0100] S160 , fixing two L-shaped core segments 20 back to back to form a T-shaped core body 30 .

[0101] The T-shaped core body 30 is formed by winding and cutting, which greatly improves the processing efficiency compared with the prior art method of pasting one piece at a time, and the cutting part is neat and flat, and the quality is greatly improved compared with manual pasting. In addition, the consistency of each T-shaped core body 30 is also high.

[0102] It can be understood that when the T-shaped core body 30 provided in this embodiment is used to manufacture the above-mentioned core winding structure, the insulating layer 112 is cast and molded on the L-shaped core segments 20 that are bonded back to back.

[0103] Furthermore, if Fig.10 and Fig.11 As shown, for the solution in which the core body 111 is provided with a threading channel 40, in the step of winding the substrate to form the annular core body 10, see Fig.10 , a substrate with a smaller width can be wound around the two ends of the annular core 10 in the height direction for several turns to form two flanges 11. Fig.11 , and then cut to form two L-shaped core segments 20 , and after the two L-shaped core segments 20 are fixed back to back, a threading channel 40 can be formed.

[0104] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Iron core winding structure, characterized in that: include: An iron core (100) comprises a plurality of iron core segments (110), wherein the iron core segments (110) comprise an iron core body (111) and an insulating layer (112) wrapped on an outer peripheral wall of the iron core body (111), wherein a connecting portion is provided on the insulating layer (112), and the plurality of iron core segments (110) are detachably connected via the connecting portion, and the iron core bodies (111) of two adjacent iron core segments (110) are in close contact with each other to form an electromagnetic connection; Windings (200), at least one winding (200) is wound outside the insulating layer (112) of each core segment (110).

2. The core winding structure according to claim 1, characterized in that: The core winding structure further comprises an electrical connection assembly (500), wherein the electrical connection assembly (500) comprises: A conductive wire (510) is embedded in the insulating layer (112) and extends along the length direction of the insulating layer (112); a first connecting member (520), wherein both ends of the conductive wire (510) in the length direction are provided with the first connecting member (520), one end of the first connecting member (520) is electrically connected to the conductive wire (510), and the other end extends out of the insulating layer (112), and the end of the first connecting member (520) extending out of the insulating layer (112) is used to be electrically connected to an end of the winding (200) on the insulating layer (112); The second connecting member (530) is used to electrically connect two adjacent first connecting members (520) on two adjacent core segments (110).

3. The core winding structure according to claim 2, characterized in that: The first connecting member (520) is a first nut, and the second connecting member (530) is a connecting plate. The connecting plate is provided with two first connecting holes, and bolts are passed through the first connecting holes and are threadedly connected to the first nut.

4. The core winding structure according to claim 2, characterized in that: A plurality of the electrical connection components (500) are correspondingly arranged on each of the insulating layers (112).

5. The core winding structure according to claim 2, characterized in that: The wire (510) is in a cylindrical or plate shape.

6. The core winding structure according to any one of claims 1 to 5, characterized in that: The connecting portion is a second connecting hole (1121) that passes through both ends of the insulating layer (112) in the length direction. The second connecting holes (1121) on the plurality of insulating layers (112) are arranged in a one-to-one correspondence. The connecting rod (300) is passed through the corresponding plurality of second connecting holes (1121). Both ends of the connecting rod (300) are connected to fasteners (400) to connect the plurality of core segments (110) together.

7. The core winding structure according to claim 6, characterized in that: Both ends of the connecting rod (300) are provided with external threads, the fastener (400) is a second nut, and the connecting rod (300) is connected to the second nut via the external threads.

8. The core winding structure according to claim 6, characterized in that: A plurality of second connection holes (1121) are provided on each of the insulating layers (112), and the plurality of second connection holes (1121) are arranged at intervals along the circumference of the insulating layer (112), and a connecting rod (300) is correspondingly arranged for each of the second connection holes (1121).

9. The core winding structure according to any one of claims 1 to 5, characterized in that: The insulating layer (112) and the iron core body (111) form an integrated structure.

10. The core winding structure according to any one of claims 1 to 5, characterized in that: The core body (111) of each core segment (110) is provided with a center hole (1111) penetrating the core body, and the center holes (1111) of the plurality of core segments (110) are connected one by one to form a threading channel (40), and the threading channel (40) is used for passing an external line.

11. A method for processing an iron core winding structure, used for processing the iron core winding structure according to any one of claims 1 to 10, characterized in that: The processing method of the core winding structure comprises: Preparing an iron core body (111); An insulating layer (112) and a connecting portion are formed outside the core body (111) by casting, and finally an iron core (100) is formed; Cutting the iron core (100) into multiple sections to form multiple iron core segments (110); Winding at least one winding (200) on the insulating layer (112) of each of the core segments (110); The plurality of core segments (110) are connected via the connecting portions on the insulating layer (112).

12. The method for processing the core winding structure according to claim 11, characterized in that: The specific steps of preparing the core body (111) include: Coating a colloid on one side of a sheet substrate; The sheet-like substrate is wound on a winding die in a rectangular parallelepiped shape to form an annular core (10), and the annular core (10) is bonded together by the colloid; The annular core (10) is removed from the winding die; Annealing the annular core (10); Cutting the annular core (10) at two diagonal corners to form two L-shaped iron core segments (20) of the same shape; The two L-shaped iron core segments (20) are fixed back to back to form a T-shaped iron core body (30).

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