CN218447508U - Transformer winding insulation structure - Google Patents
Transformer winding insulation structure Download PDFInfo
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- CN218447508U CN218447508U CN202222026284.4U CN202222026284U CN218447508U CN 218447508 U CN218447508 U CN 218447508U CN 202222026284 U CN202222026284 U CN 202222026284U CN 218447508 U CN218447508 U CN 218447508U
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Abstract
The utility model provides a transformer winding insulation system, including insulating skeleton, set up primary and secondary on the insulating skeleton, set up insulation system between primary and the secondary, all set up the indentation on first insulator and the second insulator, the indentation divides insulation system into insulating cutting edge portion and insulating body portion, insulation system includes first insulator and second insulator, first insulator and second insulator stack set up, divide into insulating body portion and insulating cutting edge portion with first insulator and second insulator through the indentation, overlap first insulator and second insulator, and set the length D1 of first insulating cutting edge portion on the first insulator into the length D2 that is not equal to and the second insulating cutting edge portion on the second insulator, can misplace the cutting edge incision, when first insulator and second insulator parcel are on primary, both ends of both are bent naturally and are formed L type and are pasted at the skeleton both ends, realize separating between primary and the secondary, eliminate the potential safety hazard that primary insulation is punctured.
Description
Technical Field
The utility model relates to a transformer insulation field, concretely relates to transformer winding insulation system and preparation method thereof.
Background
According to the relevant safety standard, the transformer has corresponding dielectric strength requirements for transformers with different voltage grades, the main insulation of the transformer comprises the insulation between a winding pair iron core and the insulation between each winding, and for low-voltage low-power control transformers with the voltage of less than 1140V, in the actual production, most transformer coils are wound on a special insulation framework, and the insulation of the framework is used as the main insulation between the transformer winding and the iron core. The insulation between windings of a transformer, such as the insulation between primary and secondary windings, generally adopts insulation paper, and two ends of the insulation paper are covered with insulation tapes, so as to achieve the effect of primary insulation. A gap exists between the insulating paper and the framework wall, even though the two ends of the insulating paper are wrapped by the insulating adhesive tapes, the contact of the primary interstage conducting wires is easily caused, the risk of voltage-resistant breakdown exists, and meanwhile, the procedure of wrapping the insulating adhesive tapes needs manual operation and cannot be suitable for automatic winding production.
Disclosure of Invention
In view of this, the utility model provides a transformer winding insulation system.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a transformer winding insulation system, includes insulating skeleton, set up primary and secondary winding on the insulating skeleton, its characterized in that: an insulation structure is arranged between the primary winding and the secondary winding, the insulation structure comprises a first insulation part and a second insulation part which are arranged in a stacked mode, corresponding indentations are arranged on the first insulation part and the second insulation part, the first insulation part is divided into a first insulation trimming part and a first insulation body part by the indentations, the second insulation part is divided into a second insulation trimming part and a second insulation body part by the indentations, the width E1 of the first insulation trimming part is equal to the width E2 of the second insulation trimming part, and the length D1 of the first insulation trimming part is not equal to the length D2 of the second insulation trimming part.
Preferably, the indentations on the first insulating member and the second insulating member are respectively arranged on two sides of the first insulating member and the second insulating member, the first insulating body portion and the second insulating body portion are respectively arranged between the corresponding indentations, and the first insulating trimming portion and the second insulating trimming portion are correspondingly arranged on two sides of the first insulating body portion and two sides of the second insulating body portion.
Preferably, corresponding notches are respectively arranged on the first insulating trimming portion and the second insulating trimming portion, the notches respectively divide the first insulating trimming portion into a plurality of equally spaced first small trimming portions and divide the second insulating trimming portion into a plurality of equally spaced second small trimming portions, and the first small trimming portions and the second small trimming portions are arranged in a staggered mode.
Preferably, the notch between the adjacent first small cutting edge parts and the notch between the adjacent second small cutting edge parts form a drawing gap.
Preferably, the insulating body portion is wrapped on the insulating framework, and the first insulating trimming portion is attached to two ends of the insulating framework in an L-shaped structure.
Preferably, when the length D1 of the first insulating trimming part is greater than the length D2 of the second insulating trimming part, the second insulating part is wrapped around the first insulating part; when the length D1 of the first insulating trimming part is smaller than the length D2 of the second insulating trimming part, the first insulating part wraps the second insulating part.
The beneficial effects of the utility model reside in that: the utility model discloses a divide into insulating body portion and insulating edge cutting portion with first insulating part and second insulating part through the indentation, and superpose first insulating part and second insulating part, and set the length D1 of the first insulating edge cutting portion on the first insulating part to be unequal to and the insulating length D2 of edge cutting portion of second on the second insulating part, can effectively misplace the edge cutting incision, first insulating part and second insulating part parcel are when primary winding, both ends are bent naturally and are formed the L type and paste at the skeleton both ends, thereby realize separating between primary winding and the secondary winding, thereby eliminate the potential safety hazard that primary and secondary insulation was punctured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a sectional view of the structure of the present invention;
fig. 3 is a schematic structural view of the first insulating member of the present invention;
fig. 4 is a schematic structural view of a second insulating member of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
The invention will be further described with reference to the accompanying drawings.
The utility model provides a following technical scheme:
as shown in fig. 1-4, the utility model discloses a transformer winding insulation system, including insulating skeleton 1, set up primary 2 and secondary 3 on the insulating skeleton 1, set up insulation system 4 between primary 2 and the secondary 3, insulation system 4 is including the first insulator 8 and the second insulator 9 that the stack set up, all set up corresponding indentation 5 on first insulator 8 and the second insulator 9, indentation 5 divide into first insulator 8 and first insulator trimming portion 10 and first insulator noumenon portion 6, the indentation divide into second insulator 9 and cuts out edge portion 11 and second insulator noumenon portion 7, the width E1 of first insulator trimming portion 10 equals the width E2 of second insulator trimming portion 11, the length D1 of first insulator trimming portion 10 is not equal to the length D2 of second insulator trimming portion 11. Specifically, in the present design, the first insulating member 8 and the second insulating member 9 are divided into the insulating body portion 7 and the insulating trimming portion 6 by the indentation 5, and the first insulating member 8 and the second insulating member 9 are overlapped, and the length D1 of the first insulating trimming portion 10 on the first insulating member 8 is set not equal to the length D2 of the second insulating trimming portion 11 on the second insulating member 9 (i.e., the incision divides the first insulating trimming portion 10 and the second insulating trimming portion 11 into a plurality of corresponding first small trimming portions and second small trimming portions, and the length D1 of the first small trimming portion is different from the length D2 of the second small trimming portion), so that the misalignment of the incision on the first trimming portion and the second trimming portion can be effectively realized, and when the first insulating member 8 and the second insulating member 9 are wrapped on the primary winding 2, both ends of both ends are naturally bent to form L-shaped portions and are attached to both ends of the bobbin, thereby realizing the separation between the primary winding 2 and the secondary winding 3, and thereby eliminating the potential safety hazard of the breakdown of the primary insulation.
Further, the indentations 5 on the first insulating member 8 and the second insulating member 9 are respectively disposed on two sides of the first insulating member 8 and the second insulating member 9, the first insulating body portion 6 and the second insulating body portion 7 are respectively disposed between the corresponding indentations 5, and the first insulating trimming portion 10 and the second insulating trimming portion 11 are correspondingly disposed on two sides of the first insulating body portion 6 and two sides of the second insulating body portion 7. Specifically, the insulating part is divided into the insulating trimming part 6 and the insulating body part 7 through the indentation 5, so that the integrity of the insulating part is kept while the processing is convenient, and the insulating trimming part 6 and the insulating body part 7 cannot be easily torn and separated.
Furthermore, set up corresponding incision on the first insulating portion of cutting out and the second insulating portion of cutting out respectively, the incision is divided into a plurality of equidistant first little portions of cutting out and is divided into a plurality of equidistant second little portions of cutting out with the second insulating portion of cutting out respectively with first insulating portion of cutting out, first little portion of cutting out and the crisscross setting of the little portion of cutting out of second of cutting out of portion of cutting out. Specifically, equidistant a plurality of incisions that set up on the first insulation trimming portion 10, impartial interval sets up a plurality of incisions on the second insulation trimming portion 11, the incision separates first insulation trimming portion 10 and second insulation trimming portion 11 for a plurality of corresponding first little trimming portion and second little trimming portion, the length of first little trimming portion is different with the length of second little trimming portion, and crisscross the setting of second little trimming portion 13 on first little trimming portion 12 on the first insulation trimming portion 10 and the second insulation trimming portion 11 for the incision dislocation on first insulation trimming portion 10 and the second insulation trimming portion 11, thereby make 3 taps of secondary winding take out that can be smooth, and can not damage insulation trimming portion 6.
Further, gaps are provided between the adjacent first insulating trim portions 10 and the adjacent second insulating trim portions 11, and a pull-out gap is provided between the gap formed between the adjacent first insulating trim portions 10 and the gap formed between the adjacent second insulating trim portions 11. Specifically, in this design, in order to make things convenient for the insulating part to buckle after the parcel and to the absolute laminating of primary winding 2, this design sets up the gap incision between the insulating cutting edge portion 6 on the insulating part that corresponds respectively to make the insulating part can not appear the fold of insulating part when laminating primary winding 2, and reduce the space gap between insulating part and the primary winding 2.
Further, the insulating body part 7 is wrapped on the insulating framework 1, and the insulating trimming part 6 is attached to two ends of the insulating framework 1 in an L-shaped structure. Specifically, after the insulating part is attached to the primary winding 2, the insulating trimming portions 6 on the two sides of the insulating part and the corresponding insulating body portion 7 form an L-shaped structure, and the L-shaped structure can accurately judge whether a gap is left between the insulating body portion 7 and the primary winding 2.
In the present embodiment, when the length D1 of the first insulating trim portion is greater than the length D2 of the second insulating trim portion 11, the second insulating member 9 is disposed so as to wrap around the first insulating member 8; when the length D1 of the first insulating trimming portion is smaller than the length D2 of the second insulating trimming portion 11, the first insulating member 8 is disposed to wrap the second insulating member 9. The structure can wrap the larger insulating trimming part 6 of the two insulating parts outside the other insulating part, so that when the tap of the secondary winding 3 is drawn out from the drawing gap, the insulating part with the larger density of the insulating trimming part 6 (namely, the insulating trimming part 6 with the shorter length) is wrapped inside the other insulating part, the bending of the tap of the secondary winding 3 to the insulating trimming part 6 wrapped outside the insulating part is reduced as much as possible, and the insulating trimming part 6 of the outside insulating part is prevented from being warped after being used for a long time to cause poor insulating effect.
A transformer winding insulation manufacturing process comprises the following steps:
step 1: pressing an indentation 5 on the first insulating piece 8 and the second insulating piece 9;
step 2: winding a primary winding 2 of the transformer, after the primary winding 2 is wound, superposing a first insulating part 8 and a second insulating part 9 together, wrapping a circle of an insulating body part 7 of the first insulating part 8 and an insulating body part 7 of the second insulating part 9 along the primary winding 2 of the transformer, naturally bending an insulating trimming part 6 of the first insulating part 8 and an insulating trimming part 6 of the second insulating part 9 into L shapes, attaching the L shapes to two ends of an insulating framework 1, and fixing the L shapes by using an adhesive tape after wrapping;
and 3, step 3: and winding the secondary winding 3 of the transformer, drawing out a tap of the secondary winding 3 from a gap of the cut edge of the insulating paper, and synchronously finishing the winding of the secondary winding 3.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides a transformer winding insulation system, includes insulating skeleton, set up primary and secondary winding on the insulating skeleton, its characterized in that: an insulation structure is arranged between the primary winding and the secondary winding, the insulation structure comprises a first insulation part and a second insulation part which are arranged in a stacked mode, corresponding indentations are arranged on the first insulation part and the second insulation part, the first insulation part is divided into a first insulation trimming part and a first insulation body part by the indentations, the second insulation part is divided into a second insulation trimming part and a second insulation body part by the indentations, the width E1 of the first insulation trimming part is equal to the width E2 of the second insulation trimming part, and the length D1 of the first insulation trimming part is not equal to the length D2 of the second insulation trimming part.
2. The transformer winding insulation structure according to claim 1, wherein: the indentations on the first insulating part and the second insulating part are respectively arranged on two sides of the first insulating part and the second insulating part, the first insulating body part and the second insulating body part are respectively arranged between the corresponding indentations, and the first insulating trimming part and the second insulating trimming part are correspondingly arranged on two sides of the first insulating body part and two sides of the second insulating body part.
3. The transformer winding insulation structure according to claim 1, wherein: the utility model discloses a cutting edge portion, including first insulating edge portion and second insulating edge portion, the incision that sets up respectively on first insulating edge portion and the second insulating edge portion, the incision is divided into a plurality of equidistant first little edge portions and is divided into a plurality of equidistant second little edge portions with first insulating edge portion respectively, first little edge portion and the crisscross setting of the little edge portions of cutting of second of first little edge portion and second.
4. The transformer winding insulation structure according to claim 3, wherein: and the notch between the adjacent first small cut edge parts and the notch between the adjacent second small cut edge parts form a drawing gap.
5. The transformer winding insulation structure according to claim 1, wherein: the insulating body portion wraps the insulating framework, and the first insulating edge cutting portion is attached to two ends of the insulating framework in an L-shaped structure.
6. The transformer winding insulation structure according to claim 1, wherein: when the length D1 of the first insulating trimming part is greater than the length D2 of the second insulating trimming part, the second insulating part wraps the first insulating part; when the length D1 of the first insulating trimming part is smaller than the length D2 of the second insulating trimming part, the first insulating part wraps the second insulating part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222026284.4U CN218447508U (en) | 2022-07-29 | 2022-07-29 | Transformer winding insulation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222026284.4U CN218447508U (en) | 2022-07-29 | 2022-07-29 | Transformer winding insulation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218447508U true CN218447508U (en) | 2023-02-03 |
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ID=85092579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222026284.4U Active CN218447508U (en) | 2022-07-29 | 2022-07-29 | Transformer winding insulation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218447508U (en) |
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2022
- 2022-07-29 CN CN202222026284.4U patent/CN218447508U/en active Active
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