CN213958762U - Coil peripheral insulation structure - Google Patents
Coil peripheral insulation structure Download PDFInfo
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- CN213958762U CN213958762U CN202023275747.8U CN202023275747U CN213958762U CN 213958762 U CN213958762 U CN 213958762U CN 202023275747 U CN202023275747 U CN 202023275747U CN 213958762 U CN213958762 U CN 213958762U
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Abstract
The utility model relates to a transformer technical field specifically discloses a peripheral insulation system of coil. The coil peripheral insulation structure comprises an inner insulation cylinder and an outer insulation cylinder which are coaxially sleeved; a plurality of inner comb-shaped supporting strips used for winding the high-voltage coil are connected to the outer periphery side of the inner insulating cylinder at intervals; a plurality of outer comb-shaped supporting strips used for winding the low-voltage coil are connected to the outer periphery side of the outer insulating cylinder at intervals; the periphery of each outer comb-shaped stay is provided with an outer quilt insulation; the outer cover includes a cylindrical insulating plate and an insulating tape, and the insulating tape covers the outer periphery of the insulating plate. The coil peripheral insulation structure can improve the peripheral insulation strength and impact resistance of the coil.
Description
Technical Field
The utility model relates to a transformer technical field especially relates to a peripheral insulation structure of coil.
Background
The phase-shifting transformer is the main equipment for rectifying power supply in large frequency conversion device. In the existing phase-shifting transformer, insulating components such as sleeves and insulating blocks are usually arranged among parts needing insulation in the transformer so as to adapt to the action of various voltages and ensure a stable electric field in the transformer. However, the insulation of the coil peripheral insulation structure of the conventional phase-shifting transformer still needs to be further improved, so as to ensure that the frequency conversion device can operate more safely and reliably.
Therefore, it is necessary to design a peripheral insulation structure of the coil to solve the above problems.
Disclosure of Invention
An object of the utility model is to provide a peripheral insulation system of coil can promote the peripheral dielectric strength of coil and shock resistance.
To achieve the purpose, the utility model adopts the following technical proposal:
a coil peripheral insulation structure comprises an inner insulation cylinder and an outer insulation cylinder which are coaxially sleeved; a plurality of inner comb-shaped supporting strips used for winding the high-voltage coil are connected to the outer peripheral side of the inner insulating cylinder at intervals; a plurality of outer comb-shaped supporting strips used for winding the low-voltage coil are connected to the outer periphery side of the outer insulating cylinder at intervals; the periphery of the outer side of each outer comb-shaped stay is provided with an outer quilt insulation; the outer layer includes a cylindrical insulating plate and an insulating tape covering an outer circumferential side of the insulating plate.
Further, the outer layer also comprises an inner insulating layer positioned on the inner side surface of the insulating plate and/or an intermediate insulating layer positioned between the insulating plate and the insulating tape.
Further, the inner insulating layer is insulating paper and/or an insulating film.
Further, the intermediate insulating layer is insulating paper and/or an insulating film.
Furthermore, the insulating plate is rolled into a cylinder shape through butt joint of two ends, and the butt joint overlapping position is bonded through insulating glue or insulating adhesive tape.
Furthermore, the thickness of the insulating plate is 0.3 mm-0.6 mm.
Further, the thickness of the insulating tape is 0.05 mm-0.2 mm.
Furthermore, two ends of the inner insulating cylinder are sleeved with inner insulating end rings 31 for fixing the inner comb-shaped supporting strips; two ends of the outer insulating cylinder are sleeved with outer insulating end rings 41 used for fixing the outer comb-shaped supporting strips; the end face of the inner insulating end ring, the end face of the outer insulating end ring, the outer insulating cylinder and the end face of the insulating plate are flush.
Furthermore, a plurality of insulating supporting strips are arranged between the outer periphery side of the low-voltage coil and the outer insulation layer at intervals along the circumferential direction.
Further, the cross section of the insulating stay is I-shaped.
The utility model has the advantages that: the utility model discloses a peripheral insulation system of coil encloses through the periphery side at outer pectination stay and establishes outer by insulating, should be formed by insulating material parcel such as insulating paper, insulation board, insulating film, insulating band by insulating outward to peripheral dielectric strength and the shock resistance of coil have been promoted.
Drawings
Fig. 1 is a schematic structural diagram of a coil peripheral insulation structure provided by the present invention;
fig. 2 is a schematic diagram of the structure of one embodiment of the outer insulator of fig. 1.
In the figure, 10-inner insulating cylinder; 20-an outer insulating cylinder; 30-inner comb stays; 31-an inner insulating end ring; 40-outer comb stays; 41-outer insulating end ring; 50-outer insulation; 51-an insulating plate; 52-insulating tape; 53-inner insulation layer; 54-an intermediate insulating layer; 60-insulating struts; 100-high voltage coil; 200-low voltage coil.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1, a coil peripheral insulation structure includes an inner insulation cylinder 10 and an outer insulation cylinder 20 coaxially sleeved; a plurality of inner comb-shaped supporting strips 30 for winding the high-voltage coil 100 are arranged at intervals on the outer peripheral side of the inner insulating cylinder 10, and each inner comb-shaped supporting strip 30 is connected with the inner insulating cylinder 10 through inner insulating end rings 31 sleeved at two ends of the inner insulating cylinder 10; a plurality of outer comb-shaped supporting bars 40 for winding the low-voltage coil 200 are connected to the outer circumference side of the outer insulating cylinder 20 at intervals, and each outer comb-shaped supporting bar 40 is connected to the outer insulating cylinder 20 through an outer insulating end ring 41 sleeved at both ends of the outer insulating cylinder 20; an outer insulation 50 is provided around the outer periphery of each outer comb stay 40; the outer insulation 50 includes an insulating plate 51 having a cylindrical shape and an insulating tape 52, and the insulating tape 52 covers the outer periphery of the insulating plate 51.
The utility model discloses a peripheral insulation system of coil encloses through the periphery side at outer comb stay 40 and establishes outer by insulating 50 to the outlying dielectric strength of coil and shock resistance have been promoted.
Specifically, in the outer layer 50, the insulating plate 51 is rolled into a cylindrical shape by abutting both ends, and the abutting and overlapping portions are bonded by an insulating glue or an insulating tape. Preferably, the thickness of the insulating plate 51 is 0.3mm to 0.6 mm. The insulating tape 52 is a shrink tape for binding and fixing the insulating plate 51. Preferably, the thickness of the insulating tape 52 is 0.05mm to 0.2 mm.
Further, as an embodiment of the present invention, the outer layer 50 further includes an inner insulating layer 53 on the inner surface of the insulating plate 51; as another embodiment of the present invention, the outer layer 50 further includes an intermediate insulating layer 54 between the insulating plate 51 and the insulating tape 52; as another embodiment of the present invention, the outer layer 50 further includes an inner insulating layer 53 on the inner surface of the insulating plate 51 and an intermediate insulating layer 54 between the insulating plate 51 and the insulating tape 52, as shown in fig. 2.
In the above embodiments, the inner insulating layer 53 is insulating paper, an insulating film, or a composite layer of insulating paper and insulating film. Similarly, the intermediate insulating layer 54 is an insulating paper, an insulating film, or a composite layer of an insulating paper and an insulating film.
In the above embodiments, the outer layer is wrapped by insulating materials such as insulating paper, insulating plates, insulating films and insulating tapes, so that the insulating strength of the periphery of the coil is greatly improved, and the coil has high impact resistance.
In the coil peripheral insulation structure, a plurality of insulation stays 60 are arranged between the outer peripheral side of the low-voltage coil 200 and the outer insulation 50 at intervals in the circumferential direction, so that the heat dissipation effect of the coil is improved. Preferably, the insulating struts 60 are i-shaped in cross-section.
In the coil peripheral insulation structure, two ends of an inner insulation cylinder 10 are sleeved with inner insulation end rings 31 for fixing each inner comb-shaped stay 30; two ends of the outer insulating cylinder 20 are sleeved with outer insulating end rings 41 for fixing the outer comb-shaped supporting strips 40; the end surface of the inner insulating end ring 31, the end surface of the outer insulating end ring 41 and the end surface of the outer insulating cylinder 20 are flush with each other at the same end, so that the upper end and the lower end of the high-voltage coil 100 and the lower end of the low-voltage coil 200 can be fixed conveniently. Further, the upper and lower end faces of the insulating plate 51 are flush with the end face of the outer insulating end ring 41 located at the same end, so as to fix the outer insulation 50 at the same time.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. A coil peripheral insulation structure is characterized by comprising an inner insulation cylinder (10) and an outer insulation cylinder (20) which are coaxially sleeved; a plurality of inner comb-shaped supporting strips (30) used for winding a high-voltage coil (100) are connected to the outer periphery side of the inner insulating cylinder (10) at intervals; a plurality of outer comb-shaped supporting strips (40) used for winding the low-voltage coil (200) are connected to the outer periphery side of the outer insulating cylinder (20) at intervals; an outer insulation (50) is arranged around the outer periphery of each outer comb stay (40); the outer insulating layer (50) includes a cylindrical insulating plate (51) and an insulating tape (52), and the insulating tape (52) covers the outer periphery of the insulating plate (51).
2. The coil peripheral insulation structure according to claim 1, wherein the outer insulation (50) further comprises an inner insulation layer (53) on the inner side of the insulation plate (51), and/or an intermediate insulation layer (54) between the insulation plate (51) and the insulation tape (52).
3. The coil periphery insulation structure according to claim 2, wherein the inner insulation layer (53) is an insulation paper and/or an insulation film.
4. The coil periphery insulation structure according to claim 2, wherein the intermediate insulation layer (54) is an insulation paper and/or an insulation film.
5. The coil peripheral insulation structure according to claim 1, wherein the insulation plate (51) is rolled into a cylindrical shape by butt-joining both ends, and the butt-joined overlapping portion is bonded by an insulation glue or an insulation tape.
6. The coil peripheral insulation structure according to claim 1, wherein the thickness of the insulation plate (51) is 0.3mm to 0.6 mm.
7. The coil peripheral insulation structure according to claim 1, wherein the thickness of the insulation tape (52) is 0.05mm to 0.2 mm.
8. The coil peripheral insulation structure according to claim 1, wherein both ends of the inner insulation cylinder (10) are sleeved with inner insulation end rings (31) for fixing each inner comb-like stay (30); two ends of the outer insulating cylinder (20) are sleeved with outer insulating end rings (41) used for fixing the outer comb-shaped supporting strips (40); the end face of the inner insulating end ring (31), the end face of the outer insulating end ring (41), the end face of the outer insulating cylinder (20) and the end face of the insulating plate (51) at the same end are flush.
9. The coil peripheral insulation structure according to any one of claims 1 to 8, wherein a plurality of insulation stays (60) are provided at circumferential intervals between an outer peripheral side of the low-voltage coil (200) and the outer insulation (50).
10. The coil peripheral insulation structure according to claim 9, wherein the insulating stays (60) are i-shaped in cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023275747.8U CN213958762U (en) | 2020-12-30 | 2020-12-30 | Coil peripheral insulation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023275747.8U CN213958762U (en) | 2020-12-30 | 2020-12-30 | Coil peripheral insulation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213958762U true CN213958762U (en) | 2021-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023275747.8U Active CN213958762U (en) | 2020-12-30 | 2020-12-30 | Coil peripheral insulation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213958762U (en) |
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2020
- 2020-12-30 CN CN202023275747.8U patent/CN213958762U/en active Active
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