CN110136935B - Novel three-dimensional wound core - Google Patents
Novel three-dimensional wound core Download PDFInfo
- Publication number
- CN110136935B CN110136935B CN201910389735.0A CN201910389735A CN110136935B CN 110136935 B CN110136935 B CN 110136935B CN 201910389735 A CN201910389735 A CN 201910389735A CN 110136935 B CN110136935 B CN 110136935B
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- Prior art keywords
- iron core
- core
- iron
- window
- novel
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 113
- 230000003247 decreasing effect Effects 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims description 18
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 230000001965 increasing effect Effects 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
The invention discloses a novel three-dimensional wound iron core, which comprises 3 identical iron core frames, wherein each iron core frame comprises a bottom plate and side plates integrally formed on two sides of the bottom plate, the included angles between the surfaces of the bottom plate and the side plates are identical to form a concave surface, and the side plates of the 3 iron core frames are bonded and spliced pairwise to form an iron core; the three-dimensional wound iron core is formed by arranging 3 identical iron core single frames in 3 concave surfaces of an iron core, wherein a concave window with a window opening size gradually decreasing towards the center is arranged in each iron core single frame, and the window opening direction of the concave window is consistent with the opening direction of the concave surface. By adding the iron core in the middle of the single frame, the whole cross section area of the wound iron core is increased, and the height of the wound iron core is effectively controlled.
Description
Technical Field
The invention relates to the field of power equipment, in particular to a novel three-dimensional wound core.
Background
For transformers, the three-dimensional wound iron core is an indispensable component, most of the existing three-dimensional wound iron cores are formed by splicing three identical iron core single frames which are continuously wound by silicon steel sheets, and although the three-dimensional wound iron core can meet the basic requirements of the transformers, the existing three-dimensional wound iron core has lower space utilization rate, and when no-load loss needs to be reduced, the total height of the three-dimensional wound iron core can be increased inevitably by increasing the cross section area of the iron core single frames.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art and provide a novel three-dimensional wound iron core, which can reduce the total height of the iron core and the production cost under the condition of maintaining the cross section area of the iron core.
According to a first aspect of the present invention, there is provided a novel three-dimensional wound core comprising: the 3 same iron core frames comprise a bottom plate and two side plates, the two side plates are respectively integrally formed on two sides of the bottom plate, the included angles between the surfaces of the bottom plate and the surfaces of the side plates on the two sides are the same and form a concave surface, and the 3 same iron core frames are mutually spliced with each other in the direction of outwards facing concave surfaces to form an iron core; the iron core structure is characterized by further comprising 3 identical iron core single frames arranged on the 3 concave surfaces of the iron core, wherein the iron core single frames are internally provided with concave windows with window opening sizes gradually decreasing towards the center, and the window opening directions of the concave windows are consistent with the opening directions of the concave surfaces.
The novel three-dimensional wound core provided by the invention has at least the following beneficial effects: the side plates of the 3 iron core frames are spliced into iron cores in pairs to form 3 concave surfaces with the same size, and an iron core single frame is arranged on each of the 3 concave surfaces to form a rolled iron core. Compared with the prior art, the iron core can be added in the single iron core frame, so that the thickness of the iron core is only required to be increased when the cross section area of the wound iron core is required to be increased, the total height of the iron core is effectively reduced, and the no-load loss and no-load current of the iron core are reduced. Meanwhile, the iron core frames are spliced in pairs to form a star-shaped iron core, so that the space between the single iron core frames is effectively utilized, and a structural basis is provided for shortening the circulation distance of magnetic flux in the iron core.
According to the novel three-dimensional wound iron core provided by the invention, the iron core single frame comprises an iron yoke and a single frame arranged in the iron yoke, the iron yoke is of a trapezoid table structure, and the single frame is arranged at the lower bottom of the iron yoke. From the structure, the iron yoke can provide the structural foundation for every two splices of 3 iron core frames for trapezoidal table structure, avoids appearing that both sides length is different after the concatenation.
According to the novel three-dimensional wound iron core provided by the invention, the length of the upper bottom of the iron yoke is the same as the width of the bottom plate, and the included angle between the side surface of the iron yoke and the upper bottom is the same as the included angle between the bottom plate and the side plate. Structurally, the shorter sides of the yokes are the same length as the width of the base plate, facilitating installation of the yokes in the base plate.
According to the novel three-dimensional wound core provided by the invention, the single frame is formed by winding a silicon steel sheet material. The structure can be simplified, and the cost can be reduced.
According to the novel three-dimensional wound iron core provided by the invention, the iron core window is arranged in the center of the bottom plate, and the size of the iron core window is the same as the minimum opening size of the concave window. The core window is an indispensable structure in the wound core from a structural point of view, and therefore the same size as the core window can ensure a normal magnetic flux.
According to the novel three-dimensional wound iron core provided by the invention, the wire slot for placing the coil is formed by surrounding the 3 bottom plates of the iron core, and the wire slot is an equilateral triangle cylinder. Structurally, the coil is ensured to be placed, and the cross-sectional area of the wound core is increased.
According to a second aspect of the present invention, there is provided a transformer comprising the novel solid wound core described above. The volume of the transformer is effectively saved, and the height of the transformer is reduced.
Drawings
The invention is further described below with reference to the drawings and examples;
fig. 1 is a schematic structural view of a novel three-dimensional wound core according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a single frame of an iron core according to an embodiment of the present invention;
fig. 3 is a top view of a single frame of a core according to an embodiment of the present invention;
fig. 4 is a schematic perspective view of a core frame according to an embodiment of the present invention;
FIG. 5 is a top view of a core frame according to an embodiment of the present invention;
fig. 6 is a perspective view of a core according to an embodiment of the present invention;
fig. 7 is a plan view of a core according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present invention, but not to limit the scope of the present invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1 to 7, an embodiment of the present invention provides a novel three-dimensional wound core, including: 3 identical iron core frames 21, wherein the iron core frames 21 comprise a bottom plate 212 and two side plates 211, the two side plates 211 are respectively integrally formed at two sides of the bottom plate 212, the included angles between the surfaces of the bottom plate 212 and the surfaces of the side plates 211 at two sides are identical and form a concave surface, and the 3 identical iron core frames 21 are mutually spliced with each other in the direction of outwards facing concave surfaces to form an iron core 20; the iron core single frame 10 is provided with 3 identical iron core single frames 10 which are arranged on the 203 concave surfaces of the iron core, the iron core single frames 10 are internally provided with concave windows 13 with window opening sizes gradually decreasing towards the center, and the window opening directions of the concave windows 13 are consistent with the opening directions of the concave surfaces. It should be noted that, in this embodiment, 3 iron core frames 21 are preferably spliced to form the iron core 20, so as to form a three-dimensional triangle wound iron core, and in the case of not requiring a triangle, 4 or 5 iron core frames 21 may be spliced for practical requirements, and the angle between the bottom plate 212 and the side plate 211 may be adjusted. In this embodiment, the bottom surfaces of the two side plates 211 are preferably bonded to each other to form a star-shaped core as shown in fig. 6. The bottom plate 212 and the two side plates 211 have the same angle, which is convenient for installation. It will be appreciated that the single frame 11 of the single core frame 10 may be a single frame of any shape, in this embodiment, it is preferable to have a quadrilateral with an arc apex angle, and a concave window 13 with a gradually decreasing window size is provided in the center, and since the window of the single core frame is an indispensable component, the structure of the concave window 13 can increase the area of the single frame 11, which is beneficial to reducing the height of the core. It should be noted that, the thickness of the core 20 may be any thickness, and different thicknesses correspond to different cross-sectional areas, which is selected according to practical requirements, so as to be beneficial to increasing the cross-sectional area while controlling the height of the core.
Referring to fig. 2 and 3, in another embodiment of the present invention, the core single frame 10 includes an iron yoke 12 and a single frame 11 installed in the iron yoke 12, the iron yoke 12 has a trapezoidal table structure, and the single frame 11 is installed at a lower bottom of the iron yoke 12. It should be noted that, the iron yoke 12 may have any shape, and the trapezoidal table structure is only preferable in this embodiment, so that connection with the iron core frame 21 is facilitated. It will be appreciated that the area of the lower base side of the trapezoidal table is larger, and that a larger area can be provided for mounting the core single frame 10 by employing the lower base outwardly facing arrangement.
Referring to fig. 1, in another embodiment of the present invention, the upper bottom of the yoke 12 has the same length as the width of the bottom plate 212, and the angle between the side surface and the upper bottom of the yoke 12 is the same as the angle between the bottom plate 212 and the side plate 211. It will be appreciated that maintaining the same angle between the side plates and shorter sides of the yoke 12 as the angle between the bottom plate 212 and the side plates 211 ensures that the side plates and side plates 211 of the yoke 12 remain in a snug connection when the bottom plate 212 and the shorter sides of the yoke are the same length, which is beneficial for enhancing the stability of the wound core.
In another embodiment of the present invention, the single frame 11 is formed by winding a sheet of silicon steel. The single frame 11 is formed by winding a silicon steel sheet material, which is beneficial to manufacturing the single frame 11 into any shape.
Referring to fig. 2 and 4, in another embodiment of the present invention, a core window 213 is provided at the center of the base plate 212, and the size of the core window 213 is the same as the minimum window opening size of the concave window 13. The core window 213 may be smaller than the concave window 13, or may be the same, and this embodiment is preferably the same, so as to avoid the influence on the normal operation of the wound core after the core 20 is added.
In another embodiment of the present invention, the slot 22 for placing the coil is surrounded by 3 bottom plates 212 of the core 20, and the slot 22 is an equilateral triangle cylinder. The size of the wire slot 22 may be determined according to practical requirements, and it is sufficient to place the coil.
In another embodiment of the invention, a transformer is further provided, which comprises the novel three-dimensional wound core. The volume of the transformer is effectively saved, and the height of the transformer is reduced.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.
Claims (7)
1. A novel three-dimensional wound core, comprising: the 3 same iron core frames comprise a bottom plate and two side plates, the two side plates are respectively integrally formed on two sides of the bottom plate, the included angles between the surfaces of the bottom plate and the surfaces of the side plates on the two sides are the same and form a concave surface, and the 3 same iron core frames are mutually spliced with each other in the direction of outwards facing concave surfaces to form an iron core;
the iron core structure is characterized by further comprising 3 identical iron core single frames arranged on the 3 concave surfaces of the iron core, wherein the concave window with the window opening size gradually decreasing towards the center is arranged in the iron core single frames, and the window opening direction of the concave window is consistent with the opening direction of the concave surfaces.
2. The novel three-dimensional wound core according to claim 1, wherein: the iron core single frame comprises an iron yoke and a single frame arranged in the iron yoke, wherein the iron yoke is of a trapezoid table structure, and the single frame is arranged at the lower bottom of the iron yoke.
3. A novel three-dimensional wound core according to claim 2, wherein: the length of the upper bottom of the iron yoke is the same as the width of the bottom plate, and the included angle between the side surface of the iron yoke and the upper bottom is the same as the included angle between the bottom plate and the side plate.
4. A novel three-dimensional wound core according to claim 2, wherein: the single frame is formed by winding a silicon steel sheet material.
5. The novel three-dimensional wound core according to claim 1, wherein: the center of the bottom plate is provided with an iron core window, and the size of the iron core window is the same as the minimum opening size of the concave window.
6. The novel three-dimensional wound core according to claim 1, wherein: the wire casing that is used for placing the coil that 3 bottom plates of iron core enclose, the wire casing is equilateral triangle cylinder.
7. A transformer, characterized in that: a new type of solid wound core comprising a core according to any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910389735.0A CN110136935B (en) | 2019-05-10 | 2019-05-10 | Novel three-dimensional wound core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910389735.0A CN110136935B (en) | 2019-05-10 | 2019-05-10 | Novel three-dimensional wound core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110136935A CN110136935A (en) | 2019-08-16 |
| CN110136935B true CN110136935B (en) | 2023-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910389735.0A Active CN110136935B (en) | 2019-05-10 | 2019-05-10 | Novel three-dimensional wound core |
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| Country | Link |
|---|---|
| CN (1) | CN110136935B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009283882A (en) * | 2008-05-20 | 2009-12-03 | Minoru Murano | Winding core type three-phase transformer |
| CN103887045A (en) * | 2014-03-19 | 2014-06-25 | 广东海鸿变压器有限公司 | Three-dimensional roll iron core transformer clamp |
| CN204242773U (en) * | 2014-12-13 | 2015-04-01 | 广发电器集团有限公司 | Stereo triangle transformer iron core clamp |
| CN204632534U (en) * | 2015-05-07 | 2015-09-09 | 海鸿电气有限公司 | A kind of pulling plate structure of three-dimensional wound core dry type transformer core clamping and iron core thereof |
| CN204792352U (en) * | 2015-06-30 | 2015-11-18 | 海鸿电气有限公司 | Three -dimensional novel folder from top to bottom connection structure who rolls up iron core transformer |
| CN206480460U (en) * | 2017-02-22 | 2017-09-08 | 广东康德威电气股份有限公司 | Three dimensional wound core structure for fixing transformer |
| CN208027896U (en) * | 2018-04-16 | 2018-10-30 | 广东敞开电气有限公司 | Three-dimensional wound core dry type transformer insulating part and three-dimensional wound core dry type transformer |
| CN209822445U (en) * | 2019-05-10 | 2019-12-20 | 海鸿电气有限公司 | Novel three-dimensional wound core and transformer thereof |
-
2019
- 2019-05-10 CN CN201910389735.0A patent/CN110136935B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009283882A (en) * | 2008-05-20 | 2009-12-03 | Minoru Murano | Winding core type three-phase transformer |
| CN103887045A (en) * | 2014-03-19 | 2014-06-25 | 广东海鸿变压器有限公司 | Three-dimensional roll iron core transformer clamp |
| CN204242773U (en) * | 2014-12-13 | 2015-04-01 | 广发电器集团有限公司 | Stereo triangle transformer iron core clamp |
| CN204632534U (en) * | 2015-05-07 | 2015-09-09 | 海鸿电气有限公司 | A kind of pulling plate structure of three-dimensional wound core dry type transformer core clamping and iron core thereof |
| CN204792352U (en) * | 2015-06-30 | 2015-11-18 | 海鸿电气有限公司 | Three -dimensional novel folder from top to bottom connection structure who rolls up iron core transformer |
| CN206480460U (en) * | 2017-02-22 | 2017-09-08 | 广东康德威电气股份有限公司 | Three dimensional wound core structure for fixing transformer |
| CN208027896U (en) * | 2018-04-16 | 2018-10-30 | 广东敞开电气有限公司 | Three-dimensional wound core dry type transformer insulating part and three-dimensional wound core dry type transformer |
| CN209822445U (en) * | 2019-05-10 | 2019-12-20 | 海鸿电气有限公司 | Novel three-dimensional wound core and transformer thereof |
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| Publication number | Publication date |
|---|---|
| CN110136935A (en) | 2019-08-16 |
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