Iron core winding structure

Abstract

The utility model belongs to the technical field of mutual inductors, and discloses an iron core winding structure. 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 utility model relates to the technical field of mutual inductor, especially a kind of iron core winding structure. BACKGROUND

[0002] At present, low-voltage winding or high-voltage winding on non-closed iron core is generally wound using winding equipment. However, the length of the iron core adapted by each winding equipment is different, therefore, different winding length of winding equipment needs to be used for iron core of different length, the longer the length of the iron core, the higher the strength requirement of winding equipment and iron core, resulting in higher manufacturing cost. In addition, the traditional non-closed iron core is made by artificial cutting and pasting piece by piece, the strength of the iron core is poor, easy to fall off, and the processing efficiency is low.

[0003] Therefore, it is urgent to propose an iron core winding structure and a processing method thereof to solve the above technical problems. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of iron core winding structure, by being set into the multiple section structure of detachable iron core, it can use the winding equipment of shorter winding length to carry out the winding of winding, reduce equipment cost, and can reduce the requirement to the strength of iron core, reduce the processing difficulty of iron core.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The iron core winding structure comprises:

[0007] The iron core comprises a plurality of iron core segments, the iron core segment comprises an iron core body and an insulation layer wrapped on the outer peripheral wall of the iron core body, the insulation layer is provided with a connecting portion, a plurality of iron core segments are detachably connected through the connecting portion, and the iron core bodies of adjacent two iron core segments are in close contact to form electromagnetic connection;

[0008] The winding is at least one winding wound outside the insulation layer of each iron core segment.

[0009] Optionally, the iron core winding structure further comprises an electrical connection assembly, and the electrical connection assembly comprises:

[0010] The wire is embedded in the insulation layer and extends along the length direction of the insulation layer;

[0011] The first connecting piece is provided at both ends of the wire in the length direction, one end of the first connecting piece is electrically connected with the wire, and the other end of the first connecting piece extends out of the insulation layer, and the end of the first connecting piece extending out of the insulation layer is used for electrically connecting with the end portion of the winding on the insulation layer;

[0012] Second connecting pieces for electrically connecting two adjacent first connecting pieces.

[0013] Optionally, the first connecting piece is a first nut, and the second connecting piece is a connecting plate provided with two first connecting holes.

[0014] Optionally, each insulation layer is provided with a plurality of electric connecting components.

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

[0016] Optionally, the connecting part is a second connecting hole penetrating through both ends of the length direction of the insulation layer, the second connecting holes on the plurality of insulation layers are one-to-one correspondingly arranged, a connecting rod is arranged in the corresponding second connecting holes, and both ends of the connecting rod are connected with fasteners to connect the plurality of core segments together.

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

[0018] Optionally, each insulation layer is provided with a plurality of second connecting holes, and the plurality of second connecting holes are arranged at intervals along the circumference of the insulation layer, and each second connecting hole is provided with a corresponding connecting rod.

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

[0020] Optionally, the core body of each core segment is provided with a center hole penetrating through itself, and the center holes of the plurality of core segments are one-to-one correspondingly communicated to form a wire passing channel for passing external wires.

[0021] The utility model discloses the beneficial effects of the following:

[0022] The utility model provides a kind of iron core winding structure, including iron core and winding group. Among them, iron core includes multiple core segments, and core segment includes core body and insulating layer wrapped on the outer circumferential wall of core body. This multi-segment type iron core structure can be individually wound on winding equipment with each core segment, and after winding is completed, multiple core segments are connected to form complete iron core winding structure by connecting part on insulating layer. Compared with directly winding winding group on the iron core of relatively long length in prior art, shorter winding equipment can be used, the requirement to equipment is lower, equipment cost is reduced, and the strength requirement to each core segment is not high, the processing difficulty of iron core is reduced, which is conducive to reducing the processing cost of iron core.

[0023] The electromagnetic connection between the core bodies of two adjacent core segments is achieved by contact, without the need to set an additional electrical connection structure, thus simplifying the structure and facilitating the assembly of the core segments. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of the contents of the embodiments of the present application and the drawings.

[0025] Figure 1 The exploded view of the core provided by the embodiments of the present application is shown in the figure.

[0026] Figure 2 The exploded view of the winding structure of the core provided by the embodiments of the present application is shown in the figure.

[0027] Figure 3 The schematic view of the winding structure of the core provided by the embodiments of the present application is shown in the figure.

[0028] Figure 4 The Figure 3 The enlarged view at A is shown in the figure.

[0029] Figure 5 The sectional view of the winding structure of the core provided by the embodiments of the present application is shown in the figure.

[0030] In the figure:

[0031] 100, core; 110, core segment; 111, core body; 1111, center hole; 112, insulation layer; 1121, second connecting hole; 200, winding; 300, connecting rod; 400, fastener; 500, electrical connection assembly; 510, wire; 520, first connecting piece; 530, second connecting piece. DETAILED DESCRIPTION

[0032] The present application will be further described in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, but not all the structures.

[0033] In the description of the utility model, unless another definite provision and limitation, the term "link", "connection", "fix" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two element's interaction relationship.For the ordinary skill in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0034] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features are not direct contact but contact through the additional feature between them.Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature.

[0035] In the description of the embodiment, the orientation or position relationship of the terms "on", "under", "left", "right" and the like is based on the orientation or position relationship shown in the drawing, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0036] The embodiment provides a kind of iron core winding structure, by being set into the detachable multiple segment structure of iron core, it can use the winding equipment of shorter winding length to carry out the winding of winding, reduces equipment cost, and, it can reduce the requirement to iron core strength, reduces the processing difficulty of iron core.

[0037] Specifically, as Figures 1-3 Indicated, the iron core winding structure includes iron core 100 and winding 200.Wherein, iron core 100 includes multiple iron core segments 110, iron core segment 110 includes iron core body 111 and insulating layer 112 wrapped on the outer wall of iron core body 111, connecting portion is provided on insulating layer 112, multiple iron core segments 110 are detachably connected by connecting portion, and the iron core body 111 of adjacent two iron core segments 110 is in close contact to form electromagnetic connection.Iron core segment 110 is at least one winding 200 outside insulating layer 112.

[0038] By setting the iron core 100 into a multi-section structure, the iron core 100 can be wound on the winding device for separate winding when winding the winding 200. Since the length of the iron core section 110 can be set as needed, the winding device with a shorter winding length can be used for winding the winding 200. Compared with the prior art of directly winding the winding 200 on the entire length of the iron core 100, the requirement for the winding device is lower, the equipment cost is reduced, and since the length of the iron core section 110 is shorter, the strength requirement of the iron core section 110 is also lower, the processing difficulty of the iron core 100 is reduced, and the processing cost of the iron core 100 is reduced. In addition, the iron core bodies 111 of the two adjacent iron core sections 110 are electromagnetically connected by contact, without the need to set an additional electrical connection structure, which simplifies the iron core winding structure and facilitates the assembly of the iron core sections 110.

[0039] It can be understood that the number of iron core sections 110 can be set according to the model of the winding device and the total length of the iron core 100.

[0040] Optionally, the iron core 100 is a non-closed iron core. Further, the shape of the iron core 100 can be set as needed, such as "T" shape, "L" shape, etc.

[0041] Further, referring to Figure 3 and Figure 5 , the connecting part is a second connecting hole 1121 penetrating the length direction of both ends of the insulation layer 112, the second connecting holes 1121 on the plurality of insulation layers 112 are one-to-one correspondingly arranged, the connecting rod 300 is arranged in the corresponding plurality of second connecting holes 1121, and the two ends of the connecting rod 300 are connected with the fastener 400 to connect the plurality of iron core sections 110 together. The detachable connection of the plurality of iron core sections 110 is realized by the connecting rod 300 and the second connecting hole 1121, which is simple in structure and convenient to assemble.

[0042] Optionally, in one possible embodiment, the two 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 with the second nut through the external threads. In this way, when assembling the plurality of iron core sections 110, the connecting rod 300 is sequentially arranged through the second connecting holes 1121 on the plurality of insulation layers 112, and then the second nut is screwed on the two ends of the connecting rod 300 until the iron core bodies 111 of the two adjacent iron core sections 110 are tightly fitted. The threaded connection is convenient to assemble and has high connection reliability. In another possible embodiment, the fastener 400 can also be a clamping structure, which is fixed at the two ends of the connecting rod 300 by clamping. In other embodiments, the structure of the fastener 400 can also be set as other, which can be set as needed, and the present application does not make specific limitation.

[0043] Further, continuing to refer to Figure 3 and Figure 5 A plurality of second connecting holes 1121 are arranged on each insulating layer 112, and the plurality of second connecting holes 1121 are arranged at intervals along the circumference of the insulating layer 112, and one connecting rod 300 is arranged on each second connecting hole 1121. By arranging a plurality of second connecting holes 1121 on each insulating layer 112, the connection reliability between the plurality of core segments 110 can be improved, thereby facilitating improvement of the working reliability of the core winding structure.

[0044] In the embodiment, two second connecting holes 1121 are arranged on each insulating layer 112. In other embodiments, the number of second connecting holes 1121 on each insulating layer 112 can also be three, four, etc., which can be arranged according to actual needs, and the present application does not make specific limitations.

[0045] Further, 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, arranging the insulating layer 112 and the core body 111 as an integrated structure can, on the one hand, fasten the core body 111 through the insulating layer 112, thereby reducing the risk of loosening of the core body 111 and improving the working reliability of the core body 111; on the other hand, it can avoid the movement of the core body 111 relative to the insulating layer 112, so as to ensure that the core body 111 can be reliably kept in close contact after the connection of the two adjacent core segments 110.

[0046] Optionally, in the embodiment, the insulating layer 112 is formed on the outer periphery of the core body 111 by injection molding.

[0047] Optionally, the material of the insulating layer 112 can be epoxy resin.

[0048] Optionally, in other possible embodiments, the connecting part can also be a boss arranged on the outer peripheral wall of the insulating layer 112, and a boss is arranged on each of the opposite ends of each core segment 110, and an assembly hole can be arranged on each boss, and a threaded rod is arranged in the two assembly holes on the adjacent two bosses, and the two ends of the threaded rod are connected with nuts. Of course, in other possible embodiments, the structure of the connecting part can also be other structures, which can be arranged according to actual needs, and the present application does not make specific limitations.

[0049] Further, continuing to refer to Figure 1 and Figure 4The core winding structure further comprises an electrical connection assembly 500, which is used to realize series connection and parallel connection between the windings 200 on different core segments 110. Specifically, the electrical connection assembly 500 comprises a wire 510, a first connecting piece 520 and a second connecting piece 530. The wire 510 is embedded in the insulation layer 112 and extends along the length direction of the insulation layer 112. The wire 510 is provided with the first connecting piece 520 at both ends in the length direction, one end of the first connecting piece 520 is electrically connected with the wire 510, and the other end extends out of the insulation layer 112. The first connecting piece 520 is used to electrically connect the end of the winding 200 on the insulation layer 112. The second connecting piece 530 is used to electrically connect two adjacent first connecting pieces 520 on adjacent core segments 110.

[0050] The use method of the electrical connection assembly 500 will be introduced below by taking the series connection between the windings 200 on adjacent core segments 110 as an example.

[0051] For the convenience of understanding, the wires 510 on the adjacent core segments 110 are defined as a first wire and a second wire, and the windings 200 on the adjacent core segments 110 are defined as a first winding and a second winding.

[0052] During wiring, the tail end of the first winding is connected with the first connecting piece 520 at the tail end of the first wire, the head end of the second winding is connected with the first connecting piece 520 at the head end of the second wire, and then the second connecting piece 530 is used to connect two adjacent first connecting pieces 520, so as to realize the electrical connection between the first winding and the second winding.

[0053] Of course, the electrical connection between two non-adjacent windings 200 can also be realized by the electrical connection assembly 500.

[0054] The core winding structure provided by the embodiment realizes the connection between the windings 200 on the core segments 110 by the electrical connection assembly 500, which is simple in structure, convenient for wiring and high in electrical connection reliability.

[0055] Optionally, in the embodiment, the first connecting piece 520 is a first nut, and the second connecting piece 530 is a connecting plate provided with two first connecting holes 1121. A bolt is screwed into the first connecting hole 1121 and screwed into the first nut. The structure is simple and convenient for installation of the connecting plate.

[0056] It can be understood that the fastener 400 is optional but not limited to a bolt.

[0057] Optionally, each insulation layer 112 is provided with a plurality of electrical connection assemblies 500. The specific number of electrical connection assemblies 500 can be set according to the number of windings 200. The number of electrical connection assemblies 500 provided on each insulation layer 112 can be the same or different.

[0058] Optionally, in one possible embodiment, the wire 510 is in a cylindrical shape. In another possible embodiment, the wire 510 is in a plate shape. In other possible embodiments, the structure of the wire 510 can also be set to other structures, which can be set according to actual needs, and the present application does not make specific limitations.

[0059] Further, continuing to refer to Figure 5 The core body 111 of each core segment 110 is provided with a center hole 1111 penetrating through itself, and the center holes 1111 of the plurality of core segments 110 are in one-to-one correspondence and are communicated to form a threading channel, which is used for threading an external circuit. When the core winding structure is used for a mutual inductor, the threading channel can be used for threading a circuit inside the mutual inductor, facilitating wiring and being beneficial to improving the space utilization rate inside the mutual inductor.

[0060] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A core winding structure, characterized by, The application relates to an iron core winding structure. The iron core (100) comprises a plurality of iron core segments (110), each of which comprises an iron core body (111) and an insulation layer (112) wrapped on the outer peripheral wall of the iron core body (111), and a connecting part is arranged on the insulation layer (112); the plurality of iron core segments (110) are detachably connected through the connecting part; and the iron core bodies (111) of two adjacent iron core segments (110) are in close contact to form electromagnetic connection. The winding (200) is wound outside the insulation layer (112) of each iron core segment (110).

2. The core winding structure according to claim 1, characterized in that, The iron core winding structure further comprises an electric connection assembly (500), which comprises: A wire (510) embedded in the insulation layer (112) and extending along the length direction of the insulation layer (112); A first connecting piece (520) arranged at both ends of the wire (510) in the length direction, one end of the first connecting piece (520) being electrically connected with the wire (510) and the other end extending out of the insulation layer (112), and the end of the first connecting piece (520) extending out of the insulation layer (112) being used for electrically connecting with the end of the winding (200) on the insulation layer (112); A second connecting piece (530) used for electrically connecting two adjacent first connecting pieces (520) on two adjacent iron core segments (110).

3. The core winding structure of claim 2, wherein The first connecting piece (520) is a first nut, and the second connecting piece (530) is a connecting sheet, the connecting sheet being provided with two first connecting holes, and a bolt being threadedly connected with the first nut through the first connecting holes.

4. The core winding structure of claim 2, wherein A plurality of electric connection assemblies (500) are arranged on each insulation layer (112).

5. The core winding structure of claim 2, wherein The wire (510) is in a cylindrical or plate shape.

6. The core winding structure according to any one of claims 1-5, characterized in that, The connecting part is a second connecting hole (1121) penetrating through both ends of the insulation layer (112) in the length direction, the second connecting holes (1121) on the plurality of insulation layers (112) being arranged one by one, a connecting rod (300) being arranged through the corresponding second connecting holes (1121), and the connecting rod (300) being connected with a fastener (400) at both ends to connect the plurality of iron core segments (110) together.

7. The core winding structure of claim 6, wherein 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 with the second nut through the external threads.

8. The core winding structure of claim 6, wherein A plurality of second connecting holes (1121) are arranged on each insulation layer (112), the plurality of second connecting holes (1121) being arranged at intervals in the circumferential direction of the insulation layer (112), and one connecting rod (300) is arranged corresponding to each second connecting hole (1121).

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

10. The core winding structure according to any one of claims 1-5, characterized in that, The core body (111) of each of the core segments (110) is provided with a center hole (1111) penetrating through itself, and the center holes (1111) of the plurality of core segments (110) are in one-to-one correspondence and are communicated to form a threading channel for threading an external circuit.

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