A winding core and transformer with cushion block structure

Abstract

The utility model discloses an iron core and transformer with cushion block structure are provided, and the iron core with cushion block structure comprises core body, coil and cushion block subassembly, and the coil is positioned by the step cushion block of end abutment, and the first step portion and the second sleeve joint portion of beam body are installed in the clamping. The transformer, including shell, lid and the iron core with cushion block structure of winding, the iron core with cushion block structure is set up in the shell, and the shell is sealed with the lid, and the input terminal and the output terminal are arranged on the lid, and the input terminal and the output terminal are connected with the iron core with cushion block structure respectively. The utility model discloses an effect that the coil installation fixed effect is good, and the sliding displacement is not easy.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, and more specifically, to a wound iron core and transformer with a pad block structure. Background Technology

[0002] Transformers are widely used as an important component of power transmission lines. A transformer consists of an iron core and coils. The iron core has winding posts, and the coils are wound on these winding posts. To prevent the sides of the winding posts from contacting and damaging the coils, the sides are generally stepped to create a passivation effect.

[0003] However, the coil is prone to sliding displacement on the winding post, which leads to uneven stress on the core body and problems such as tilting and misalignment of the core body during installation. Utility Model Content

[0004] This utility model addresses the shortcomings of existing methods by proposing a wound iron core and transformer with a pad block structure. This solves the technical problems in the prior art, such as uneven stress on the wound iron core body caused by easy slippage and displacement of the coil, and easy tilting and misalignment of the wound iron core body during installation.

[0005] In the first aspect, this utility model provides a wound iron core with a pad structure, including an iron core body, a coil, and a pad assembly;

[0006] The iron core includes multiple beams connected end to end in sequence. The multiple beams enclose a winding hole, and the inner sides of the multiple beams are provided with a first step from the outside to the inside.

[0007] At least one of the beams is wound with the coil;

[0008] The pad assembly includes a stepped pad, wherein the stepped pad is provided with a first abutting surface and a second stepped portion that is adapted to the first stepped portion;

[0009] The coil is provided with step pads at both ends. The second step of the step pad at one end of the coil is engaged with the first step of another beam near the beam where the coil is located. The first abutting surface of the step pad abuts against one end of the coil.

[0010] Optionally, one of the beams is provided with two inner sides, and each of the sides is provided with the first step portion;

[0011] Two stepped pads are provided at one end of the iron core. The first stepped portion of the two stepped pads is correspondingly engaged with the second stepped portion of the two inner sides of another beam near the beam where the coil is located.

[0012] Optionally, the iron core includes four beams, which form a rectangular structure with an outer contour.

[0013] Optionally, the number of the iron core bodies is three;

[0014] Two opposing beams of a core are defined as winding beams, one winding beam of one core is connected to one winding beam of another core, another winding beam of one core is connected to one winding beam of yet another core, and another winding beam of another core is connected to another winding beam of yet another core.

[0015] Two connected winding beams are defined as a winding post, and three iron cores form three winding posts, with each winding post wound with a coil.

[0016] Optionally, it also includes an outer hoop;

[0017] The outer hoop includes three outer hoop strips, which are connected end to end in sequence to form a closed loop.

[0018] The closed-loop sleeve is fitted on the outside of the three iron cores, and the closed-loop sleeve is located at one end of the coil.

[0019] Optionally, the pad assembly further includes a yoke pad;

[0020] Two yoke blocks are provided between two step blocks at the same end of the two inner sides of each of the outer sides of the surrounding column;

[0021] Each of the step pads has a yoke pad on the side of the step pad close to the other step pad. The yoke pad is located between the end of the coil and the outer hoop, and abuts against the end of the coil and the outer hoop, respectively.

[0022] And / or, the pad assembly further includes a central pad, one of which is disposed at the middle position of the outer side of the surrounding beam, the central pad being placed between the end of the coil and the closed loop sleeve.

[0023] Optionally, the step pad is provided with a second abutting surface, which abuts against the side of the closed loop sleeve near the coil.

[0024] Optionally, there are two outer clamps, which are respectively disposed at both ends of the coil.

[0025] A transformer includes a housing, a cover, and a wound iron core having a pad structure;

[0026] The coiled iron core with a pad structure is disposed in the outer shell, and the cover seals the outer shell. The cover is provided with an input terminal and an output terminal, which are respectively connected to the coiled iron core with the pad structure.

[0027] The beneficial technical effects brought about by the technical solution provided by this utility model embodiment include:

[0028] By placing stepped pads at the ends of the coil, the stepped pads position the coil at the upper limit of the beam, preventing the coil from sliding axially upwards on the beam, preventing uneven stress on the core winding body, and avoiding problems such as tilting and misalignment of the core winding body during installation. In addition, the interlocking of the second step and the first step ensures the positioning of the stepped pads.

[0029] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of the invention. Attached Figure Description

[0030] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0031] Figure 1 A schematic diagram of a wound iron core with a pad block structure is provided for an embodiment of this utility model;

[0032] Figure 2 A schematic diagram of the structure of an outer hoop with a pad block structure and a three-dimensional coiled iron core provided for an embodiment of this utility model;

[0033] Figure 3 An enlarged assembly diagram of a pad assembly for a wound iron core with a pad structure, provided for an embodiment of this utility model;

[0034] Figure 4 This is a schematic diagram of the structure of a coiled iron core with a pad block structure, provided for an embodiment of the present utility model.

[0035] The meanings of the reference numerals in the attached figures are as follows:

[0036] 10. Core body; 101. Winding hole; 102. First step; 20. Coil; 30. Pad assembly; 31. Step pad; 32. Yoke pad; 33. Center pad; 301. First abutment surface; 302. Second step; 303. Second abutment surface; 40. Winding post; 50. Outer hoop; 51. Outer hoop strip; 60. Third step. Detailed Implementation

[0037] The present invention will now be described in detail. Examples of embodiments of the present invention are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. Furthermore, detailed descriptions of known technologies that are unnecessary for the features of the present invention shown are omitted. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0038] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0039] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connections or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

[0040] First, let's introduce and explain several terms involved in this utility model:

[0041] The technical solution of this utility model and how the technical solution of this utility model solves the above-mentioned technical problems will be described in detail below with specific embodiments.

[0042] This utility model embodiment provides a wound iron core product with a pad block structure, and a structural schematic diagram of the wound iron core product with a pad block structure is shown below. Figure 1As shown, the assembly includes: an iron core 10, a coil 20, and a pad assembly 30; the iron core 10 includes multiple beams connected end to end in sequence, the multiple beams enclosing a winding hole 101, and the inner sides of the multiple beams are provided with a first step portion 102 from the outside to the inside; at least one beam is wound with a coil 20; the pad assembly 30 includes a step pad 31, the step pad 31 is provided with a first abutting surface 301 and a second step portion 302 that is adapted to the first step portion 102; the two ends of the coil 20 are respectively provided with step pads 31, the second step portion 302 of the step pad 31 at one end of the coil 20 is engaged with the first step portion 102 of another beam near the beam where the coil 20 is located, and the first abutting surface 301 of the step pad 31 abuts against one end of the coil 20.

[0043] Based on existing technology, it is known that the core body 10 is best designed with stepped sections on both the inner and outer ring sides, which will not be described in detail here. The difference is that the stepped section on the outer ring side is a third stepped section 60 that unfolds from the outside in.

[0044] In this embodiment, as Figure 4 As shown, the inner sides of multiple beams connected in series from the first step portion 102 form an inner ring step portion. Similarly, if the third step portions 60 of the outer sides of multiple beams are connected in series, an outer ring step portion is formed. The multiple beams enclose a ring with a central hole 101, thus the outer ring can have two outer ring step portions, and the inner ring can have two inner ring step portions.

[0045] The following description uses two inner ring steps as an example. In this embodiment, step blocks 31 are provided at both ends of the coil 20. These step blocks 31 at both ends limit the coil 20 at its ends, preventing displacement of the coil 20 along the beam's axial direction. Furthermore, the first step portion 102 and the second step portion 302 are fitted together, enhancing the locking and positioning effect of the step blocks 31. Alternatively, if the core body 10 and the step blocks 31 are respectively provided with the first step portion 102 and the second step portion 302, then a flat pad is used instead of the step blocks 31. The flat pad is placed on the ends of the coil 20 and on the inner side of the beam connected to the beam containing the coil 20.

[0046] Otherwise, the steps of the first step section 102 and the second step section 302 are both three-step structures.

[0047] In addition, it is generally preferred that each iron core 10 has two coils 20. Of course, depending on the actual design needs, the number of coils 20 can be set to one, three or even more, which will not be elaborated here.

[0048] Optionally, a beam body is provided with two inner sides, each side being provided with a first step portion 102; one end of the iron core body 10 is provided with two step pads 31, and the first step portions 102 of the two step pads 31 are respectively engaged with the second step portions 302 of the two inner sides of another beam body near the beam body where the coil 20 is located.

[0049] In conjunction with the aforementioned two inner ring stepped portions, this embodiment describes a beam body with two inner sides. Each inner side may have step blocks 31 partially or completely provided at both ends. For example, providing step blocks 31 at both ends of each inner side constitutes the aforementioned scheme where one end of the core body 10 has two step blocks 31. Thus, a coil 20 can have a maximum of four step blocks 31. In summary, the more step blocks 31 are provided for a coil 20, the better the positioning effect of the coil 20.

[0050] Optionally, the core 10 includes four beams, which form a rectangular structure in shape.

[0051] For example, the core body 10 in this embodiment is a cuboid structure. In conjunction with the above, a rectangular winding hole 101 is provided in the middle of the cuboid core body 10, so the core body is a rectangular ring.

[0052] In addition, the four outer corners of the rectangular iron core 10 are rounded to prevent collisions.

[0053] Optionally, such as Figure 2 As shown, there are three iron cores 10. Two opposing beams of one iron core 10 are defined as winding beams. One winding beam of one iron core 10 is connected to one winding beam of another iron core 10. The other winding beam of one iron core 10 is connected to one winding beam of yet another iron core 10. The other winding beam of another iron core 10 is connected to another winding beam of yet another iron core 10. The two connected winding beams are defined as a winding post 40. The three iron cores 10 form three winding posts 40, and each winding post 40 is wound with a coil.

[0054] Taking the aforementioned cuboid core 10 as an example, with two long-side beams serving as winding beams, the two adjacent beams of two adjacent cores 10 are aligned and spliced ​​to form winding beams, thus forming the existing three-dimensional core. In this embodiment, the short sides of the core 10 are the upper and lower sides of the upper and lower three-dimensional core, and a coil 20 is wound on each vertical winding beam.

[0055] In addition, as described above, a coil 20 on the core 10 can be supported by a maximum of four step blocks 31 on a beam. In this embodiment, two beams (winding beams) form a winding column 40. Thus, based on a beam, a maximum of eight step blocks 31 can be provided on two beams.

[0056] Furthermore, the outer contour formed by the three iron cores 10 in this embodiment is an equilateral triangle structure.

[0057] Optionally, it also includes an outer hoop 50; the outer hoop 50 includes three outer hoop bars 51, which are connected end to end in sequence to form a closed loop; the closed loop is sleeved on the outside of the three iron core bodies 10, and the closed loop is located at one end of the coil 20.

[0058] In this embodiment, an outer clamp 50 is provided outside the three-dimensional iron core to tighten the three-dimensional iron core. In conjunction with the foregoing, the outer clamp 50 can be located at the top or bottom of the three coils 20.

[0059] Specifically, the three outer hoop bars 51 are preferably channel steel, and one outer hoop bar 51 is respectively set on the outside of each iron core body 10. The three outer hoop bars 51 are connected end to end in sequence to form an equilateral triangle closed loop.

[0060] Optionally, combined Figure 3 As shown, the pad assembly 30 also includes a yoke pad 32; two yoke pads 32 are provided between two stepped pads 31 at the same end of the two inner sides of each of the outer sides of the outer side of the post 40; a yoke pad 32 is provided on the side of one stepped pad 31 close to the other stepped pad 31, and the yoke pads 32 are located between the end of the coil 20 and the outer hoop 51, and respectively abut against the end of the coil 20 and the outer hoop 51.

[0061] For example, in conjunction with the aforementioned, one surrounding post 40 corresponds to eight step pads 31. Each surrounding post 40 has four step pads 31 on its outer and inner sides, respectively. More specifically, the two upper outer pads form a group called the upper outer group, and the other two form the lower outer group. Similarly, the four inner pads are divided into the upper inner group and the lower inner group.

[0062] In this embodiment, each of the two stepped pads 31 on the outer upper group pads is provided with a yoke pad 32 on the side close to each other. Each yoke pad 32 positions the end of the coil 20 and also limits an outer hoop 51 at the corresponding position.

[0063] And / or, the pad assembly 30 also includes a central pad 33, which is disposed at the middle position of the outer side of a surrounding beam, and the central pad 33 is placed between the end of the coil 20 and the closed loop sleeve.

[0064] The center pad 33 can be referenced from the yoke pad 32 described above. Specifically, the difference is that the center pad 33 positions the coil 20 and also abuts against the connection point of two adjacent outer hoop bars 51, thus simultaneously limiting the movement of the two outer hoop bars 51, specifically restricting their movement towards the coil. That is, the center pad 33 is located between the two yoke pads 32.

[0065] In addition, the shapes of the aforementioned center pad 33 and yoke pad 32 can be conventional square structures. More preferably, the inner sides of both can be set to a shape that adapts to the surface of the surrounding column 40, thereby improving the assembly fit between components.

[0066] The outer lower group pad, the inner upper group pad, and the inner lower group pad can all be configured with a center pad 33 and a yoke pad 32, referring to the outer lower group pad. This will not be elaborated further here.

[0067] Optionally, the step pad 31 is provided with a second abutting surface 303, which abuts against the side of the closed loop sleeve near the coil 20.

[0068] For example, the second abutting surface 303 and the first abutting surface 301 are two opposing surfaces, which can be understood as the top surface and the bottom surface for ease of explanation. In this embodiment, the second abutting surface 303 abuts against the outer hoop 51, so the pad assembly 30 is located between the end of the coil 20 and the outer hoop 50.

[0069] Thus, the top and bottom surfaces of the step pad 31 correspond to the second abutment surface 303 and the first abutment surface 301, and the first step portion 102 is disposed between the second abutment surface 303 and the first abutment surface 301.

[0070] In conjunction with the foregoing, two step pads 31, a center pad 33, and a yoke pad 32 on the same side and at the same end form a pad chain around the junction of the two winding beams, thus a winding column 40 can have a maximum of four pad chains. The increased positioning or limiting pads for the coil 20 and the outer hoop 51 improve the overall stability of the support or installation.

[0071] Optionally, there are two outer clamps 50, which are respectively disposed at both ends of the coil 20.

[0072] The aforementioned outer clamp 50 can be optionally positioned on the top or bottom of the coil 20. In this embodiment, two outer clamps 50 are provided to achieve a balanced effect of tightening the three-dimensional iron core from top to bottom.

[0073] Based on the same inventive concept, another transformer provided by this utility model embodiment includes a shell, a cover, and the aforementioned wound iron core with a pad structure; the wound iron core with a pad structure is disposed in the shell, the cover seals the shell, and the cover is provided with an input terminal and an output terminal, which are respectively connected to the wound iron core with a pad structure.

[0074] This embodiment describes the application of a wound iron core with a pad structure in a transformer. The input terminals (not shown) and output terminals (not shown) mentioned above are configurations of existing transformers and will not be elaborated upon here.

[0075] Those skilled in the art will understand that the steps, measures, and schemes in the various operations, methods, and processes discussed in this utility model can be alternated, modified, combined, or deleted. Furthermore, other steps, measures, and schemes in the various operations, methods, and processes discussed in this utility model can also be alternated, modified, rearranged, decomposed, combined, or deleted. Furthermore, the steps, measures, and schemes in the prior art that are similar to those disclosed in this utility model can also be alternated, modified, rearranged, decomposed, combined, or deleted.

[0076] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0077] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0078] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0079] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0080] It should be understood that although the steps in the flowcharts of the accompanying figures are shown sequentially as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the accompanying figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.

[0081] The above description is only a partial embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A wound iron core with a pad block structure, characterized in that, Includes a core body (10), a coil (20), and a pad assembly (30); The core body (10) includes a plurality of beams connected end to end in sequence, the plurality of beams enclosing a winding hole (101), and the inner side of the plurality of beams being provided with a first step (102) from the outside to the inside. At least one of the beams is wound with the coil (20); The pad assembly (30) includes a stepped pad (31), the stepped pad (31) being provided with a first abutting surface (301) and a second stepped portion (302) adapted to the first stepped portion (102); The coil (20) is provided with step pads (31) at both ends. The second step portion (302) of the step pad (31) at one end of the coil (20) is engaged with the first step portion (102) of another beam near the beam where the coil (20) is located. The first abutting surface (301) of the step pad (31) abuts against one end of the coil (20).

2. The wound iron core with a pad structure according to claim 1, characterized in that, One of the beams is provided with two inner sides, and each of the sides is provided with the first step portion (102). Two stepped pads (31) are provided at one end of the core body (10). The first stepped portion (102) of the two stepped pads (31) is connected one-to-one to the second stepped portion (302) of the two inner sides of another beam near the beam where the coil (20) is located.

3. The wound iron core with a pad structure according to claim 1 or 2, characterized in that, The core (10) includes four beams, which form a rectangular structure with an outer contour.

4. The wound iron core with a pad structure according to claim 3, characterized in that, The number of the iron core bodies (10) is three; Two opposing beams of a core (10) are defined as winding beams, one of the winding beams of one core (10) is connected to one of the winding beams of another core (10), another winding beam of one core (10) is connected to one of the winding beams of yet another core (10), and another winding beam of another core (10) is connected to another winding beam of yet another core (10). Two connected winding beams are defined as a winding post (40), and three iron cores (10) form three winding posts (40), with each winding post (40) having a coil wound around it.

5. The wound iron core with a pad structure according to claim 4, characterized in that, It also includes the outer hoop (50); The outer hoop (50) includes three outer hoop strips (51), which are connected end to end in sequence to form a closed loop; The closed-loop sleeve is fitted on the outside of the three iron cores (10), and the closed-loop sleeve is located at one end of the coil (20).

6. The wound iron core with a pad structure according to claim 5, characterized in that, The pad assembly (30) also includes a yoke pad (32); Two yoke blocks (32) are provided between two step blocks (31) at the same end of the two inner sides of each of the two outer sides of the surrounding column (40). Each of the step pads (31) has a yoke pad (32) on the side of the step pad (31) close to the other step pad (31). The yoke pad (32) is located between the end of the coil (20) and the outer hoop (51), and abuts against the end of the coil (20) and the outer hoop (51) respectively. And / or, the pad assembly (30) further includes a central pad (33), which is disposed at the middle position of the outer side of a winding beam, and the central pad (33) is placed between the end of the coil (20) and the closed loop sleeve.

7. The wound iron core with a pad structure according to claim 5, characterized in that, The step pad (31) is provided with a second abutting surface (303), which abuts against the side of the closed loop sleeve near the coil (20).

8. The wound iron core with a pad structure according to claim 6 or 7, characterized in that, The number of the outer clamps (50) is two, and the two outer clamps (50) are respectively disposed at the two ends of the coil (20).

9. A transformer, characterized in that, Includes an outer casing, a cover, and a coiled iron core with a pad structure as described in any one of claims 1-8; The coiled iron core with a pad structure is disposed in the outer shell, and the cover seals the outer shell. The cover is provided with an input terminal and an output terminal, which are respectively connected to the coiled iron core with the pad structure.

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