CN213958759U - Transformer insulation structure - Google Patents
Transformer insulation structure Download PDFInfo
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- CN213958759U CN213958759U CN202023263549.XU CN202023263549U CN213958759U CN 213958759 U CN213958759 U CN 213958759U CN 202023263549 U CN202023263549 U CN 202023263549U CN 213958759 U CN213958759 U CN 213958759U
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- insulation
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- 238000009413 insulation Methods 0.000 title claims abstract description 79
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000004804 winding Methods 0.000 claims abstract description 8
- 238000010079 rubber tapping Methods 0.000 claims description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 5
- 235000017491 Bambusa tulda Nutrition 0.000 description 5
- 241001330002 Bambuseae Species 0.000 description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 5
- 239000011425 bamboo Substances 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 5
- 238000009422 external insulation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009421 internal insulation Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- WABPQHHGFIMREM-AKLPVKDBSA-N lead-210 Chemical compound [210Pb] WABPQHHGFIMREM-AKLPVKDBSA-N 0.000 description 1
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Abstract
The utility model relates to a transformer technical field specifically discloses a transformer insulation system. The transformer insulation structure comprises an inner insulation cylinder and an outer insulation cylinder, wherein the inner insulation cylinder is sleeved on the outer side of an iron core, and the outer insulation cylinder is coaxially sleeved on the outer side of the inner insulation cylinder; 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 upper end face and the lower end face of the inner insulating cylinder are both positioned between the end face of the same end iron core and the end face of the outer insulating cylinder, and a plurality of bulges are convexly arranged at intervals. The transformer insulation structure can improve the insulation of the transformer body.
Description
Technical Field
The utility model relates to a transformer technical field especially relates to a transformer insulation system.
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 insulation structure of the existing 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 an insulation structure of a transformer to solve the above problems.
Disclosure of Invention
An object of the utility model is to provide a transformer insulation system can promote the insulating nature of transformer ware body.
To achieve the purpose, the utility model adopts the following technical proposal:
an insulation structure of a transformer comprises an inner insulation cylinder and an outer insulation cylinder, wherein the inner insulation cylinder is sleeved on the outer side of an iron core, and the outer insulation cylinder is coaxially sleeved on the outer side of the inner insulation cylinder; 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 upper end face and the lower end face of the inner insulating cylinder are located at the same end, the end face of the iron core is located between the end faces of the outer insulating cylinders, and a plurality of bulges are arranged at intervals in a protruding mode.
Furthermore, one of the bulges at the upper end of the inner insulating cylinder is over against the high-voltage lead of the high-voltage coil; and one of the bulges at the lower end of the inner insulating cylinder is over against the high-voltage tapping lead of the high-voltage coil.
Further, each of the protrusions is symmetrically disposed with respect to a central axis of the inner insulating cylinder.
Furthermore, two ends of the inner insulating cylinder are sleeved with inner insulating end rings for fixing the inner comb-shaped supporting strips; two ends of the outer insulating cylinder are sleeved with outer insulating end rings 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 and the end face of the outer insulating cylinder are flush.
Further, the insulation support piece is positioned at the lower end of the outer insulation cylinder and used for supporting the inner insulation cylinder and the outer insulation cylinder; and a wire slot for accommodating the auxiliary coil is formed in the insulating support.
Furthermore, the insulating support piece comprises a plurality of insulating cushion blocks which are circumferentially arranged at intervals along the outer peripheral side of the lower end of the outer insulating cylinder, the top surface of each insulating cushion block is provided with a through groove, and the grooves are spliced to form the wire slot; and the top surface of each insulating cushion block is provided with an insulating cushion plate for covering the groove.
The utility model has the advantages that:
1. the utility model discloses a transformer insulation system through set up the internal insulation section of thick bamboo between iron core and high-voltage coil, sets up the external insulation section of thick bamboo between high-voltage coil and low-voltage coil, makes the upper and lower both ends face of internal insulation section of thick bamboo all be located between the terminal surface of same end iron core and the terminal surface of external insulation section of thick bamboo to including the protruding a plurality of archs of establishing of upper and lower both ends face of internal insulation section of thick bamboo, thereby strengthened the insulating nature between high-voltage coil and the iron core.
2. The utility model discloses a transformer insulation system sets up the insulating support piece who offers the wire casing through the lower extreme at an outer insulating cylinder for accept auxiliary coil, and play the effect of supporting an inner insulating cylinder and an outer insulating cylinder, can reduce the height of an inner insulating cylinder and an outer insulating cylinder, and have good insulating nature between auxiliary coil and the low-voltage coil.
Drawings
Fig. 1 is a schematic structural diagram of an insulation structure of a transformer according to the present invention;
FIG. 2 is a schematic structural view of the inner insulating cylinder and the inner comb-like stay of FIG. 1;
FIG. 3 is a schematic structural diagram of the outer insulating cylinder and the outer comb-like stay of FIG. 1;
fig. 4 is a schematic structural diagram of another embodiment of an insulation structure of a transformer according to the present invention;
fig. 5 is a schematic structural view of the insulating spacer in fig. 4.
In the figure, 10-inner insulating cylinder; 11-a bump; 20-an outer insulating cylinder; 30-inner comb stays; 40-inner insulating end ring; 50-outer comb stays; 60-outer insulating end ring; 70-an insulating support; 71-wire grooves; 72-insulating spacer blocks; 721-grooves; 73-insulating backing plate; 100-iron core; 200-high voltage coil; 210-high voltage lead; 220-high voltage tapping lead; 300-a low voltage coil; 400-auxiliary coil.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Example 1:
as shown in fig. 1 to 3, an insulation structure of a transformer includes an inner insulation cylinder 10 sleeved outside an iron core 100 and an outer insulation cylinder 20 coaxially sleeved outside the inner insulation cylinder 10; a plurality of inner comb-shaped stays 30 for winding the high voltage coil 200 are connected to the outer circumferential side of the inner insulating cylinder 10 at intervals; a plurality of outer comb-like stays 50 for winding the low voltage coil 300 are connected to the outer circumference side of the outer insulating cylinder 20 at intervals; the upper and lower end faces of the inner insulating cylinder 10 are located between the end face of the same end core 100 and the end face of the outer insulating cylinder 20, and a plurality of protrusions 11 are convexly arranged at intervals.
In the transformer insulation structure in this embodiment, the inner insulation cylinder 10 is disposed between the iron core 100 and the high-voltage coil 200, and the outer insulation cylinder 20 is disposed between the high-voltage coil 200 and the low-voltage coil 300, so that the upper and lower end surfaces of the inner insulation cylinder 10 are both located between the end surface of the iron core 100 and the end surface of the outer insulation cylinder 20 at the same end, and the upper and lower end surfaces of the inner insulation cylinder 10 are provided with the plurality of protrusions 11 in a protruding manner, thereby enhancing the insulation between the high-voltage coil 200 and the iron core 100.
Specifically, in the transformer insulation structure, one of the protrusions 11 at the upper end of the inner insulation cylinder 10 faces the high-voltage lead 210 of the high-voltage coil 200; one of the protrusions 11 at the lower end of the inner insulating cylinder 10 faces the high voltage tapping lead 220 of the high voltage coil 200. The transformer insulation structure is provided with the bulges 11 at the two ends of the inner insulation cylinder 10 close to the wire inlet and the wire outlet of the high-voltage coil 200, so that the insulativity of the wire inlet and the wire outlet of the high-voltage coil 200 is enhanced.
Preferably, the protrusions 11 are symmetrically disposed with respect to the central axis of the inner insulating cylinder 10.
As the preferred scheme of this embodiment, the upper end and the lower extreme of interior insulating cylinder 10 all are provided with two archs 11, and the height of each arch is 8mm ~15 mm.
In the transformer insulation structure, two ends of an inner insulation cylinder 10 are sleeved with inner insulation end rings 40 for fixing each inner comb-shaped stay 30; the two ends of the external insulation cylinder 20 are sleeved with external insulation end rings 60 for fixing the external comb-shaped supporting strips 50; the end face of the inner insulating end ring 40, the end face of the outer insulating end ring 60 and the end face 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 inner insulating cylinder 10 and the upper end and the lower end of the outer insulating cylinder 20 are fixed conveniently.
Example 2:
as shown in fig. 4 and 5, compared to the transformer insulation structure of embodiment 1, the transformer insulation structure of this embodiment further includes an insulation support 70 located at the lower end of the outer insulation cylinder 20 and supporting the inner insulation cylinder 10 and the outer insulation cylinder 20; a slot 71 for receiving the auxiliary coil 400 is formed in the insulating support 70.
The insulating support member 70 comprises a plurality of insulating cushion blocks 72 circumferentially arranged at intervals along the outer periphery of the lower end of the outer insulating cylinder 20, the top surface of each insulating cushion block 72 is provided with a through groove 721, and the grooves 721 are spliced to form a trunking 71; the top surface of each insulating spacer 72 is provided with an insulating pad 73 for covering the groove 721. When the insulating cylinder is mounted, the insulating spacers 72 are located on the lower clamping member 500, and the top surfaces of the insulating spacers 73 are in contact with the lower end surface of the outer insulating cylinder 20 and the inner insulating end ring 40 and the outer insulating end ring 60 located at the lower end.
In the transformer insulation structure, the insulation support 70 is used for accommodating the auxiliary coil 400, so that the auxiliary coil 400 and the low-voltage coil 300 have good insulation; in addition, the insulating support member 70 also plays a role of supporting the inner insulating cylinder 10 and the outer insulating cylinder 20, so that the heights of the inner insulating cylinder 10 and the outer insulating cylinder 20 can be reduced, and the product cost can be reduced.
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 (6)
1. An insulation structure of a transformer is characterized by comprising an inner insulation cylinder (10) sleeved outside an iron core (100) and an outer insulation cylinder (20) coaxially sleeved outside the inner insulation cylinder (10); a plurality of inner comb-shaped supporting strips (30) used for winding the high-voltage coil (200) are connected to the outer periphery side of the inner insulating cylinder (10) at intervals; a plurality of outer comb-shaped supporting strips (50) used for winding a low-voltage coil (300) are connected to the outer periphery side of the outer insulating cylinder (20) at intervals; the upper end face and the lower end face of the inner insulating cylinder (10) are located at the same end, the end face of the iron core (100) and the end face of the outer insulating cylinder (20) are arranged between the end faces, and a plurality of protrusions (11) are arranged at intervals in a protruding mode.
2. The transformer insulation structure according to claim 1, wherein one of the protrusions (11) at the upper end of the inner insulation cylinder (10) faces a high voltage lead (210) of the high voltage coil (200); one of the bulges (11) at the lower end of the inner insulating cylinder (10) is over against a high-voltage tapping lead (220) of the high-voltage coil (200).
3. The transformer insulation structure according to claim 1, wherein each of the protrusions (11) is symmetrically arranged with respect to a central axis of the inner insulation tube (10).
4. The transformer insulation structure according to claim 1, wherein both ends of the inner insulation cylinder (10) are sleeved with inner insulation end rings (40) for fixing each inner comb-shaped stay (30); two ends of the outer insulating cylinder (20) are sleeved with outer insulating end rings (60) used for fixing the outer comb-shaped supporting strips (50); the end face of the inner insulating end ring (40), the end face of the outer insulating end ring (60) and the end face of the outer insulating cylinder (20) are flush.
5. The transformer insulation structure according to any one of claims 1 to 4, further comprising an insulation support (70) at a lower end of the outer insulation cylinder (20) for supporting the inner insulation cylinder (10) and the outer insulation cylinder (20); and a wire slot (71) for accommodating the auxiliary coil (400) is formed in the insulating support (70).
6. The transformer insulation structure according to claim 5, wherein the insulation support (70) comprises a plurality of insulation blocks (72) circumferentially arranged at intervals along the outer periphery of the lower end of the outer insulation cylinder (20), a through groove (721) is formed in the top surface of each insulation block (72), and the grooves (721) are spliced to form the wire slot (71); and an insulating pad (73) for covering the groove (721) is arranged on the top surface of each insulating pad (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023263549.XU CN213958759U (en) | 2020-12-30 | 2020-12-30 | Transformer insulation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023263549.XU CN213958759U (en) | 2020-12-30 | 2020-12-30 | Transformer insulation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213958759U true CN213958759U (en) | 2021-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023263549.XU Active CN213958759U (en) | 2020-12-30 | 2020-12-30 | Transformer insulation structure |
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| CN (1) | CN213958759U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116525265A (en) * | 2023-05-15 | 2023-08-01 | 广东敞开电气有限公司 | Novel coil structure and manufacturing method thereof |
-
2020
- 2020-12-30 CN CN202023263549.XU patent/CN213958759U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116525265A (en) * | 2023-05-15 | 2023-08-01 | 广东敞开电气有限公司 | Novel coil structure and manufacturing method thereof |
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