CN107123524B - Wrap angle device and transformer - Google Patents
Wrap angle device and transformer Download PDFInfo
- Publication number
- CN107123524B CN107123524B CN201710546060.7A CN201710546060A CN107123524B CN 107123524 B CN107123524 B CN 107123524B CN 201710546060 A CN201710546060 A CN 201710546060A CN 107123524 B CN107123524 B CN 107123524B
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- corner
- corner wrapping
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- wrapping
- transformer
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- 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
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulating Of Coils (AREA)
Abstract
The invention provides a corner wrapping device and a transformer, wherein the corner wrapping device is applied to a winding of the transformer and comprises the following components: the first corner wrapping part, the second corner wrapping part and the bending part; the bending parts are respectively connected with the first corner wrapping parts and the second corner wrapping parts, the bending parts, the first corner wrapping parts and the second corner wrapping parts form an L-shaped containing cavity, the corner wrapping devices wrap two adjacent corners in the winding through the L-shaped containing cavity, and the corner wrapping devices are made of insulating materials. According to the invention, the L-shaped accommodating cavity wraps two adjacent corners in the winding of the transformer, and the corner wrapping device is supported by the insulating material, so that the insulation distance between the winding provided with the corner wrapping device and the adjacent winding is ensured to be larger, and a better insulation effect is achieved between the windings of the adjacent transformers.
Description
Technical Field
The invention relates to the technical field of transformers, in particular to a corner wrapping device and a transformer.
Background
Transformers are an important component in electrical equipment and typically comprise a plurality of windings. To avoid interactions between windings, transformers are often designed for insulation.
The transformer mainly adopts a plastic supporting framework, a plastic combined nested framework, a plastic multi-groove fan blade packaging framework, an outer adhesive tape insulating isolation layer, vacuum filling and sealing pouring epoxy glue or silica gel and the like to meet the requirement of electric insulation performance among windings of the transformer. When the lining insulation is carried out by adopting the modes of skeleton insulation isolation, wrapping insulation tape and the like, the manufactured transformer product has larger size, complex and fussy manufacturing process, difficult production and processing and causes difficulty for electric equipment with small installation space size.
Disclosure of Invention
The invention provides a wrap angle device and a transformer, which are used for solving the problems of complex process, larger size and difficult production and processing when insulation design is adopted among windings of the transformer in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
according to an aspect of the present invention, there is provided a corner wrapping apparatus applied to a winding of a transformer, the corner wrapping apparatus comprising: the first corner wrapping part, the second corner wrapping part and the bending part; the bending parts are respectively connected with the first corner wrapping parts and the second corner wrapping parts, the bending parts, the first corner wrapping parts and the second corner wrapping parts form an L-shaped containing cavity, the corner wrapping devices wrap two adjacent corners in the winding through the L-shaped containing cavity, and the corner wrapping devices are made of insulating materials.
Further, the first wrap angle portion and the second wrap angle portion are both L-shaped plate-shaped structures.
Further, the first wrap angle portion and the second wrap angle portion each include: the L-shaped short side, the L-shaped long side and two connecting sides connecting the L-shaped short side and the L-shaped long side, and the bending part is respectively connected with the L-shaped long sides of the first corner wrapping part and the second corner wrapping part.
Further, the first wrap angle portion and the second wrap angle portion are parallel to each other.
Further, the bending part is perpendicular to the first wrap angle part.
Further, the bending portion is perpendicular to the second corner-wrapping portion.
Further, the wrap angle device is integrally formed.
Further, a minimum distance between the first wrap angle portion and the second wrap angle portion is not less than 6 mm.
Further, the corner wrapping device is made of polyimide.
According to still another aspect of the present invention, there is provided a transformer including: an insulating spacer and a plurality of windings, and a wrap angle device as described above;
the insulating gaskets are arranged between two adjacent windings in the plurality of windings, two corners connected with each of four sides in the plurality of windings are wrapped in the L-shaped accommodating cavity, and the four sides are perpendicular to the adjacent windings.
The beneficial effects of the invention are as follows:
according to the technical scheme, the bending part, the first corner wrapping part and the second corner wrapping part form the L-shaped accommodating cavity, two adjacent corners in the winding of the transformer are wrapped by the L-shaped accommodating cavity, and the corner wrapping device is made of insulating materials for supporting, so that the insulation distance between the winding provided with the corner wrapping device and the adjacent winding is large, and a good insulation effect is achieved between the windings of the adjacent transformers.
Drawings
FIG. 1 shows one of schematic diagrams of a corner wrapping apparatus according to an embodiment of the present invention;
FIG. 2 shows a second schematic diagram of a corner wrapping device according to an embodiment of the present invention;
FIG. 3 shows a third schematic view of a corner wrapping device according to an embodiment of the present invention;
FIG. 4 shows a schematic diagram of a transformer according to an embodiment of the present invention;
fig. 5 shows a second schematic diagram of a transformer according to an embodiment of the invention.
Reference numerals illustrate:
1. a wrap angle device; 11. a first wrap angle; 12. a second corner-wrapping portion; 13. a bending part; 15. a winding; 16. an insulating spacer.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
As shown in fig. 1 to 3, an embodiment of the present invention provides a corner wrapping device 1, the corner wrapping device 1 being applied to a winding 15 of a transformer, the corner wrapping device 1 comprising: a first wrap corner 11, a second wrap corner 12 and a bent portion 13; wherein the bending part 13 is connected with the first corner wrapping part 11 and the second corner wrapping part 12 respectively.
The bending part 13, the first corner wrapping part 11 and the second corner wrapping part 12 form an L-shaped accommodating cavity, the corner wrapping device 1 wraps two adjacent corners in the winding 15 through the L-shaped accommodating cavity, and the corner wrapping device 1 is made of insulating materials.
Specifically, the corner wrapping device 1 is arranged on a winding 15 in the transformer. In order to prolong the service life of the corner wrapping device 1, the corner wrapping device 1 can be made of materials with high temperature resistance, high voltage resistance, weather resistance and insulativity, and preferably, the material of the corner wrapping device 1 is polyimide.
The winding 15 of the transformer is of a cuboid structure and is sleeved on the magnetic core of the transformer. Each transformer comprises a plurality of windings 15, and the windings 15 are parallel to each other. An insulating spacer 16 having an insulating function is provided between the adjacent two windings 15 to increase the insulating distance between the adjacent two windings 15. But the insulating spacers 16 do not perform very well in the eight corners of the winding 15. Therefore, the L-shaped accommodating cavity wraps two adjacent corners of the winding 15, and the four corner wrapping devices 1 are used for completely wrapping eight corners of the winding 15, so that a good insulating effect is achieved, and the insulating distance between the winding 15 provided with the corner wrapping devices 1 and the adjacent winding 15 is greatly increased.
The corner wrapping device 1 is composed of a first corner wrapping portion 11, a second corner wrapping portion 12 and a bending portion 13, wherein the bending portion 13 is respectively connected with the first corner wrapping portion 11 and the second corner wrapping portion 12. The wrap angle device 1 is simple in structure and can realize the mass production of the die. The corner fitting 1 may be spliced to connect the bent portion 13 to the first corner portion 11 and the second corner portion 12, respectively. In order to simplify the process, the corner fitting 1 is preferably integrally formed.
Further, the minimum distance between the first wrap angle portion 11 and the second wrap angle portion 12 is not less than 6 mm. The distance between the first wrap angle 11 and the second wrap angle 12 determines whether the L-shaped receiving cavity can wrap around two adjacent corners of the winding 15. For two adjacent windings 15 of the plurality of windings 15 of the transformer, there are four sides of one winding 15 perpendicular to the other winding 15, each side being connected to two adjacent corners, the L-shaped receiving cavity is used to wrap the two adjacent corners, because there are four such sides, it is necessary to provide four corner wrapping devices 1 on each winding 15 when providing corner wrapping devices 1 on the windings 15.
In the embodiment of the present invention, the first corner wrapping portion 11 and the second corner wrapping portion 12 are both in an L-shaped plate structure and are respectively connected with the bending portion 13, so as to form an L-shaped accommodating cavity, and preferably, the first corner wrapping portion 11 and the second corner wrapping portion 12 each include: the bending portion 13 is connected to the L-shaped long sides of the first corner portion 11 and the second corner portion 12, respectively.
The bending portion 13 is also an L-shaped structure, including: a first end and a second end perpendicular to each other. The adjacent two corners of the winding are wrapped by the L-shaped receiving cavity, so that the first end length and the second end length of the bent portion 13 determine the insulation distance between the winding 15 provided with the wrap angle device 1 and the adjacent winding 15. The first end length and the second end length of the bent portion 13 may be determined according to different electrical insulation requirements or different insulation distance requirements.
In the embodiment of the present invention, the winding 15 of the transformer has a regular cuboid structure, and when the corner wrapping device 1 is disposed on the winding 15 of the transformer, the first corner wrapping portion 11 is adjacent to a first plane of the winding 15, the second corner wrapping portion 12 is adjacent to a second plane of the winding 15, and the first plane is opposite to the second plane and parallel to each other, so that the first corner wrapping portion 11 and the second corner wrapping portion 12 are parallel to each other.
The first end and the second end of the bending part 13 are perpendicular to each other, and the bending part 13 is perpendicular to the first corner wrapping part 11, and the bending part 13 is perpendicular to the second corner wrapping part 12.
The bending part 13, the first corner wrapping part 11 and the second corner wrapping part 12 form an L-shaped accommodating cavity, two adjacent corners in the winding 15 of the transformer are wrapped by the L-shaped accommodating cavity, and the corner wrapping device 1 is made of insulating materials, so that the insulation distance between the winding 15 provided with the corner wrapping device 1 and the adjacent winding 15 is ensured to be larger, and a better insulation effect is achieved between the windings 15 of the adjacent transformers.
With continued reference to fig. 4, in accordance with yet another aspect of an embodiment of the present invention, there is provided a transformer including: insulating spacers 16 and a plurality of windings 15, the wrap angle device 1 provided by the above embodiment;
an insulating gasket 16 is arranged between two adjacent windings 15 in the plurality of windings 15, and two corners connected by each of four sides in at least one winding 15 in the plurality of windings 15 are wrapped in the L-shaped accommodating cavity, wherein the four sides are perpendicular to the adjacent windings 15.
Specifically, the transformer includes a plurality of windings 15, the windings 15 are parallel to each other, an insulating spacer 16 having an insulating effect is provided between two adjacent windings 15, and the windings 15 have a rectangular parallelepiped structure. The insulating spacers 16 serve to increase the insulating distance between two adjacent windings 15. But the insulating spacers 16 do not perform very well in the eight corners of the winding 15. Therefore, the L-shaped accommodating cavity wraps two adjacent corners of the winding 15, and the four corner wrapping devices 1 are used for completely wrapping eight corners of the winding 15, so that a good insulating effect is achieved, and the insulating distance between the winding 15 provided with the corner wrapping devices 1 and the adjacent winding 15 is greatly increased.
In the corner wrapping device 1 of the transformer provided by the embodiment of the invention, the bending part 13, the first corner wrapping part 11 and the second corner wrapping part 12 form an L-shaped accommodating cavity, two adjacent corners in the winding 15 of the transformer are wrapped by the L-shaped accommodating cavity, and the corner wrapping device 1 is supported by insulating materials, so that the insulation distance between the winding 15 provided with the corner wrapping device 1 and the adjacent winding 15 is ensured to be larger, and a better insulation effect is achieved between the windings 15 of the adjacent transformer.
The corner means 1 may be provided on one winding 15, for example a second winding adjacent to the third winding of the first winding, respectively, and the corner means 1 may be provided on the second winding, whereby the insulation distance between the second winding and the first winding is increased considerably by the corner means 1 compared to the insulation distance before the corner means 1 is not provided. The insulation distance between the first winding and the second winding is about the length of one end of the bent portion 13.
It is of course also possible to provide the corner device 1 on a plurality of windings 15, so that the insulation distance between the windings 15, both provided with corner devices 1, is further increased. For example, the first winding and the second winding are adjacent, and the insulation distance between the first winding and the second winding is about twice the length of one end of the bent portion 13.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may communicate with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or terminal device comprising the element.
Claims (9)
1. A corner wrapping apparatus for use with a winding of a transformer, the corner wrapping apparatus comprising: the device comprises a first corner wrapping part (11), a second corner wrapping part (12) and a bending part (13); the first corner wrapping portions (11) and the second corner wrapping portions (12) are parallel to each other, the bending portions (13) are respectively connected with the first corner wrapping portions (11) and the second corner wrapping portions (12), the bending portions (13), the first corner wrapping portions (11) and the second corner wrapping portions (12) form an L-shaped containing cavity, the winding is of a regular cuboid structure, the corner wrapping devices wrap two adjacent corners in the winding through the L-shaped containing cavity, and the corner wrapping devices are made of insulating materials.
2. The corner fitting according to claim 1, characterized in that the first corner fitting (11) and the second corner fitting (12) are each L-shaped plate-like structures.
3. The corner fitting according to claim 2, characterized in that the first corner fitting (11) and the second corner fitting (12) each comprise: the L-shaped short side, the L-shaped long side and two connecting sides connecting the L-shaped short side and the L-shaped long side, and the bending part (13) is respectively connected with the L-shaped long sides of the first corner wrapping part (11) and the second corner wrapping part (12).
4. Corner device according to claim 1, characterized in that the bend (13) is perpendicular to the first corner wrap (11).
5. The corner fitting according to claim 1, characterized in that the bend (13) is perpendicular to the second corner fitting (12).
6. The wrap angle device of claim 1, wherein the wrap angle device is integrally formed.
7. The corner fitting according to claim 1, characterized in that the minimum distance between the first corner fitting (11) and the second corner fitting (12) is not less than 6 mm.
8. The corner fitting according to claim 1, wherein the corner fitting is made of polyimide.
9. A transformer, the transformer comprising: insulating spacers and a plurality of windings, further comprising the corner wrapping device of any one of claims 1-8;
the insulating gaskets are arranged between two adjacent windings in the plurality of windings, two corners connected with each of four sides in the plurality of windings are wrapped in the L-shaped accommodating cavity, and the four sides are perpendicular to the adjacent windings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710546060.7A CN107123524B (en) | 2017-07-06 | 2017-07-06 | Wrap angle device and transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710546060.7A CN107123524B (en) | 2017-07-06 | 2017-07-06 | Wrap angle device and transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107123524A CN107123524A (en) | 2017-09-01 |
| CN107123524B true CN107123524B (en) | 2023-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710546060.7A Active CN107123524B (en) | 2017-07-06 | 2017-07-06 | Wrap angle device and transformer |
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| Country | Link |
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| CN (1) | CN107123524B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201584276U (en) * | 2009-12-30 | 2010-09-15 | 衢州杭甬变压器有限公司 | Transformer body structure |
| CN202208413U (en) * | 2011-09-06 | 2012-05-02 | 苏州良才物流科技股份有限公司 | Enhanced type hollow plate container |
| CN203372265U (en) * | 2013-07-26 | 2014-01-01 | 天津中野塑料制品有限公司 | Table trolley |
| CN103620710A (en) * | 2011-04-04 | 2014-03-05 | 魏德曼电气技术公司 | Clamping force sensor assembly for monitoring transformer degradation |
| CN204660384U (en) * | 2015-05-20 | 2015-09-23 | 广东汉能薄膜太阳能有限公司 | A kind of circulation packing device for the two glass assembly of solar cell |
| CN205963594U (en) * | 2016-06-03 | 2017-02-22 | 陈国良 | Display frame cornerite |
| CN206098123U (en) * | 2016-08-28 | 2017-04-12 | 浙江正泰电源电器有限公司 | Do benefit to reactor assembly structure of noise reduction |
-
2017
- 2017-07-06 CN CN201710546060.7A patent/CN107123524B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201584276U (en) * | 2009-12-30 | 2010-09-15 | 衢州杭甬变压器有限公司 | Transformer body structure |
| CN103620710A (en) * | 2011-04-04 | 2014-03-05 | 魏德曼电气技术公司 | Clamping force sensor assembly for monitoring transformer degradation |
| CN202208413U (en) * | 2011-09-06 | 2012-05-02 | 苏州良才物流科技股份有限公司 | Enhanced type hollow plate container |
| CN203372265U (en) * | 2013-07-26 | 2014-01-01 | 天津中野塑料制品有限公司 | Table trolley |
| CN204660384U (en) * | 2015-05-20 | 2015-09-23 | 广东汉能薄膜太阳能有限公司 | A kind of circulation packing device for the two glass assembly of solar cell |
| CN205963594U (en) * | 2016-06-03 | 2017-02-22 | 陈国良 | Display frame cornerite |
| CN206098123U (en) * | 2016-08-28 | 2017-04-12 | 浙江正泰电源电器有限公司 | Do benefit to reactor assembly structure of noise reduction |
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| Publication number | Publication date |
|---|---|
| CN107123524A (en) | 2017-09-01 |
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