CN217061682U - Dry-type transformer with good heat dissipation performance - Google Patents
Dry-type transformer with good heat dissipation performance Download PDFInfo
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- CN217061682U CN217061682U CN202123347576.XU CN202123347576U CN217061682U CN 217061682 U CN217061682 U CN 217061682U CN 202123347576 U CN202123347576 U CN 202123347576U CN 217061682 U CN217061682 U CN 217061682U
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Abstract
The utility model discloses a dry-type transformer with good heat dissipation performance, which comprises a base, an iron core, a coil winding and a heat dissipation device, wherein the iron core comprises an upper iron yoke, a lower iron yoke, a first iron core column, a second iron core column, a third iron core column, upper clamping square steel and lower clamping square steel, the front side and the rear side of the lower iron yoke are respectively provided with lower clamping square steel, and the lower clamping square steel is arranged on the base; the heat dissipation device comprises three groups of heat dissipation fans, the three groups of heat dissipation fans are respectively installed on the outer side of the lower clamping square steel, the first group of heat dissipation fans are used for blowing to the first iron core column and coil windings outside the first iron core column, the second group of heat dissipation fans are used for blowing to the second iron core column and coil windings outside the second iron core column, and the third group of heat dissipation fans are used for blowing to the third iron core column and coil windings outside the third iron core column. The utility model discloses can be to the heat dissipation of blowing respectively of coil winding outside three iron core posts of group and three iron core posts, make dry-type transformer's whole thermal diffusivity better, improve dry-type transformer's whole operational reliability.
Description
Technical Field
The utility model relates to a transformer technical field, in particular to good heat dissipation's dry-type transformer.
Background
A transformer is a device that changes an alternating voltage using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil, and an iron core (magnetic core). The main functions are as follows: the dry-type transformer with good heat dissipation is widely used in places such as local lighting, high-rise buildings, airports, wharf CNC mechanical equipment and the like, and simply means a transformer in which an iron core and a winding are not immersed in insulating oil.
The conventional dry-type transformer structure generally comprises a base, an iron core arranged on the base, and a coil winding wound outside the iron core, wherein a heat dissipation fan is arranged on the base, and blows into the transformer to dissipate heat of the transformer. The problems with such dry transformers are: the dry-type transformer is often a three-phase dry-type transformer, the three-phase dry-type transformer is provided with three iron cores and three sets of coil windings, the wind blown out by the cooling fan on the base is relatively dispersed, and the three iron cores and the three sets of coil windings are not independently subjected to blowing cooling respectively, so that the overall heat dissipation performance of the dry-type transformer is poor, and the overall operation reliability of the dry-type transformer is reduced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is, not enough to among the above-mentioned prior art, provide a good heat dissipation's dry-type transformer, this dry-type transformer can be to the coil winding of three iron core columns of group and three outside the iron core column of group heat dissipation of blowing respectively, make dry-type transformer's whole thermal diffusivity better, improve dry-type transformer's whole operational reliability.
In order to solve the technical problem, the technical scheme of the utility model is that: a dry-type transformer with good heat dissipation performance comprises a base, an iron core, a coil winding and a heat dissipation device, wherein the iron core comprises an upper iron yoke, a lower iron yoke, a first iron core column, a second iron core column, a third iron core column, upper clamping square steel and lower clamping square steel, the first iron core column is connected between the left ends of the upper iron yoke and the lower iron yoke, the second iron core column is connected between the middle parts of the upper iron yoke and the lower iron yoke, and the third iron core column is connected between the right ends of the upper iron yoke and the lower iron yoke; coil windings are respectively wound outside the first iron core column, the second iron core column and the third iron core column; the front side and the rear side of the upper iron yoke are respectively provided with upper clamping square steels, the front side and the rear side of the lower iron yoke are respectively provided with lower clamping square steels, and the lower clamping square steels are arranged on the base; the heat dissipation device comprises three groups of heat dissipation fans, the three groups of heat dissipation fans are respectively installed on the outer side of the lower clamping square steel, the first group of heat dissipation fans are used for blowing to the first iron core column and the coil winding outside the first iron core column, the second group of heat dissipation fans are used for blowing to the second iron core column and the coil winding outside the second iron core column, and the third group of heat dissipation fans are used for blowing to the third iron core column and the coil winding outside the third iron core column.
Preferably, the number of the heat dissipation fans of the first group of heat dissipation fans is two, one of the heat dissipation fans is installed outside the lower clamping square steel on the front side of the lower iron yoke, and the other heat dissipation fan is installed outside the lower clamping square steel on the rear side of the lower iron yoke.
Preferably, the coil winding includes a low-voltage coil and a high-voltage coil, the low-voltage coil is wound outside the first iron core column, the second iron core column and the third iron core column respectively, and the high-voltage coil is wound outside the low-voltage coil; and a lower cushion block is arranged between the bottom ends of the low-voltage coil and the high-voltage coil and the lower clamping square steel, and an upper cushion block is arranged between the top ends of the low-voltage coil and the high-voltage coil and the upper clamping square steel.
Preferably, a first high-voltage insulator, a second high-voltage insulator and a third high-voltage insulator are arranged outside the upper clamping square steel on the front side of the upper iron yoke, a first high-voltage lead row is installed on the first high-voltage insulator, a second high-voltage lead row is installed on the second high-voltage insulator, a third high-voltage lead row is installed on the third high-voltage insulator, the first high-voltage lead row is connected with a high-voltage coil outside the first iron core column, the second high-voltage lead row is connected with a high-voltage coil outside the second iron core column, and the third high-voltage lead row is connected with a high-voltage coil outside the third iron core column; the upper clamping square steel of the rear side of the upper iron yoke is provided with a zero line copper bar, the outer side of the zero line copper bar is provided with a first low-voltage insulator, a second low-voltage insulator and a third low-voltage insulator, a first low-voltage lead bar is installed on the first low-voltage insulator, a second low-voltage lead bar is installed on the second low-voltage insulator, a third low-voltage lead bar is installed on the third low-voltage insulator, the first low-voltage lead bar is connected with a low-voltage coil outside the first iron core column, the second low-voltage lead bar is connected with a low-voltage coil outside the second iron core column, and the third low-voltage lead bar is connected with a low-voltage coil outside the third iron core column.
Preferably, an upper insulating plate is arranged between the upper iron yoke and the upper clamping square steel, an upper bolt is arranged between two ends of the two upper clamping square steel, and the two upper clamping square steel are locked by the upper bolt; and a lower insulating plate is arranged between the lower iron yoke and the lower clamping square steel, a lower bolt is arranged between two ends of the two lower clamping square steels, and the two lower clamping square steels are locked by the lower bolt.
Preferably, the front side and the rear side of the first iron core column, the second iron core column and the third iron core column are respectively provided with an insulating pulling plate, the upper end of each insulating pulling plate is fixedly connected with the upper clamping square steel, and the lower end of each insulating pulling plate is fixedly connected with the lower clamping square steel; and plastic steel straps are bound at intervals on the outer sides of the first iron core column, the second iron core column and the third iron core column.
The utility model has the advantages that: because the utility model discloses a heat abstractor includes three cooling fan of group, three cooling fan of group install respectively in the outside of tight below steel of clamp, and first cooling fan of group is used for blowing to the coil winding outside first iron core post and the first iron core post, and second cooling fan of group is used for blowing to the coil winding outside second iron core post and the second iron core post, and third cooling fan of group is used for blowing to the coil winding outside third iron core post and the third iron core post, thereby makes the utility model discloses can blow the heat dissipation respectively to the coil winding outside three iron core posts of group and three iron core posts, make dry-type transformer's whole thermal diffusivity better, improve dry-type transformer's whole operational reliability.
Drawings
Fig. 1 is a schematic front structural view of the present invention.
Fig. 2 is a schematic side view of the present invention.
Fig. 3 is a schematic top view of the present invention.
Fig. 4 is a schematic front view of the core.
Fig. 5 is a schematic side view of the core.
Detailed Description
The structure and operation of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 5, the present invention relates to a dry-type transformer with good heat dissipation, including an iron core 1, a base 2, a coil winding 3 and a heat dissipation device 4, the iron core 1 includes an upper iron yoke 11, a lower iron yoke 12, a first iron core column 13, a second iron core column 14, a third iron core column 15, upper clamping square steel 16 and lower clamping square steel 17, the first iron core column 13 is connected between the left ends of the upper iron yoke 11 and the lower iron yoke 12, the second iron core column 14 is connected between the middle portions of the upper iron yoke 11 and the lower iron yoke 12, and the third iron core column 15 is connected between the right ends of the upper iron yoke 11 and the lower iron yoke 12; the coil winding 3 is respectively wound outside the first iron core column 13, the second iron core column 14 and the third iron core column 15; the front side and the rear side of the upper iron yoke 11 are respectively provided with upper clamping square steels 16, the front side and the rear side of the lower iron yoke 12 are respectively provided with lower clamping square steels 17, and the lower clamping square steels 17 are arranged on the base 2; the heat dissipation device 4 comprises three sets of heat dissipation fans, the three sets of heat dissipation fans are respectively installed on the outer side of the lower clamping square steel 17, the first set of heat dissipation fan 41 is used for blowing to the first iron core column 13 and the coil winding 3 outside the first iron core column 13, the second set of heat dissipation fan 42 is used for blowing to the second iron core column 14 and the coil winding 3 outside the second iron core column 14, and the third set of heat dissipation fan 43 is used for blowing to the third iron core column 15 and the coil winding 3 outside the third iron core column 15. The utility model discloses can be to the heat dissipation of blowing respectively of coil winding outside three iron core posts of group and three iron core posts, make dry-type transformer's whole thermal diffusivity better, improve dry-type transformer's whole operational reliability.
As shown in fig. 1 to 3, the number of the first group of cooling fans 41 is two, one of the cooling fans is installed outside the lower clamping square steel 17 at the front side of the lower iron yoke 2, and the other cooling fan is installed outside the lower clamping square steel 17 at the rear side of the lower iron yoke 2. Therefore, the heat of the coil windings outside the three groups of iron core columns and the three groups of iron core columns can be respectively dissipated by blowing from the front side and the back side.
As shown in fig. 1 to 5, the coil winding 3 includes a low-voltage coil 31 and a high-voltage coil 32, the low-voltage coil 31 is wound outside the first core limb 13, the second core limb 14 and the third core limb 15, and the high-voltage coil 32 is wound outside the low-voltage coil 31; and a lower cushion block 33 is arranged between the bottom ends of the low-voltage coil 31 and the high-voltage coil 32 and the lower clamping square steel 17, and an upper cushion block 34 is arranged between the top ends of the low-voltage coil 31 and the high-voltage coil 32 and the upper clamping square steel 16.
As shown in fig. 1 to 5, a first high-voltage insulator 351, a second high-voltage insulator 352 and a third high-voltage insulator 353 are arranged outside the upper clamping square steel on the front side of the upper yoke 11, a first high-voltage lead row 361 is installed on the first high-voltage insulator 351, a second high-voltage lead row 362 is installed on the second high-voltage insulator 352, a third high-voltage lead row 363 is installed on the third high-voltage insulator 353, the first high-voltage lead row 361 is connected with the high-voltage coil 32 outside the first core limb 13, the second high-voltage lead row 362 is connected with the high-voltage coil 32 outside the second core limb 14, and the third high-voltage lead row 363 is connected with the high-voltage coil 32 outside the third core limb 15; a zero line copper bar 37 is arranged outside the upper clamping square steel 16 on the rear side of the upper iron yoke 11, a first low-voltage insulator 381, a second low-voltage insulator 382 and a third low-voltage insulator 383 are arranged on the outer side of the zero line copper bar 37, a first low-voltage lead row 391 is installed on the first low-voltage insulator 381, a second low-voltage lead row 392 is installed on the second low-voltage insulator 382, a third low-voltage lead row 393 is installed on the third low-voltage insulator 383, the first low-voltage lead row 391 is connected with the low-voltage coil 31 outside the first iron core column 13, the second low-voltage lead row 392 is connected with the low-voltage coil 31 outside the second iron core column 14, and the third low-voltage lead row 393 is connected with the low-voltage coil 31 outside the third iron core column 15. The high-voltage coil 32 outside the first iron core column 13 is a first-phase high-voltage coil, the high-voltage coil 32 outside the second iron core column 14 is a second-phase high-voltage coil, the high-voltage coil 32 outside the third iron core column 15 is a third-phase high-voltage coil, the three-phase high-voltage coils are provided with an upper outlet terminal 394 and a lower outlet terminal 395, a high-voltage connecting rod 396 is connected between the lower outlet terminal of the first-phase high-voltage coil and the upper outlet terminal of the second-phase high-voltage coil, a high-voltage connecting rod 396 is connected between the lower outlet terminal of the second-phase high-voltage coil and the upper outlet terminal of the third-phase high-voltage coil, the high-voltage connecting rod 396 is connected between the lower outlet terminal of the third-phase high-voltage coil and the upper outlet terminal of the first-phase high-voltage coil, the first high-voltage outlet row 361 is connected with the upper outlet terminal 394 of the first-phase high-voltage coil, and the second high-voltage outlet row 362 is connected with the upper outlet terminal 394 of the second-phase high-voltage coil, the third high voltage lead row 363 is connected to the upper outlet terminal 394 of the third phase high voltage coil.
As shown in fig. 4 to 5, an upper insulating plate 181 is disposed between the upper iron yoke 11 and the upper clamping square steel 16, an upper bolt 182 is disposed between two ends of the two upper clamping square steels, the two upper clamping square steels 16 are locked by the upper bolt 182, and the upper bolt 182 does not contact with the upper iron yoke 16; a lower insulating plate 183 is arranged between the lower iron yoke 12 and the lower clamping square steel 17, a lower bolt 184 is arranged between two ends of the two lower clamping square steel 17, the two lower clamping square steel 17 are locked by the lower bolt 184, and the lower bolt 184 is not in contact with the lower iron yoke 12. The front side and the rear side of the first iron core column 13, the second iron core column 14 and the third iron core column 15 are respectively provided with an insulating pull plate 19, the upper end of the insulating pull plate 19 is fixedly connected with an upper clamping square steel 16, and the lower end of the insulating pull plate 19 is fixedly connected with a lower clamping square steel 17; and plastic steel bands 191 are bound at intervals on the outer sides of the first iron core column 13, the second iron core column 14 and the third iron core column 15. The upper yoke 11 and the lower yoke 12 are tightened by the insulating pulling plate 19, and the first core limb 13, the second core limb 14 and the third core limb 15 are tightly bound by the plastic steel tie 191.
The above, only the utility model discloses preferred embodiment, all be according to the utility model discloses a technical scheme does any slight modification, the equivalent change and the modification to above embodiment, all belong to the utility model discloses technical scheme's within range.
Claims (7)
1. A dry-type transformer with good heat dissipation performance is characterized in that: the coil winding structure comprises a base, an iron core, a coil winding and a heat dissipation device, wherein the iron core comprises an upper iron yoke, a lower iron yoke, a first iron core column, a second iron core column, a third iron core column, upper clamping square steel and lower clamping square steel, the first iron core column is connected between the left ends of the upper iron yoke and the lower iron yoke, the second iron core column is connected between the middle parts of the upper iron yoke and the lower iron yoke, and the third iron core column is connected between the right ends of the upper iron yoke and the lower iron yoke; coil windings are respectively wound outside the first iron core column, the second iron core column and the third iron core column; the front side and the rear side of the upper iron yoke are respectively provided with upper clamping square steels, the front side and the rear side of the lower iron yoke are respectively provided with lower clamping square steels, and the lower clamping square steels are arranged on the base; the heat dissipation device comprises three groups of heat dissipation fans, the three groups of heat dissipation fans are respectively installed on the outer side of the lower clamping square steel, the first group of heat dissipation fans are used for blowing to the first iron core column and the coil winding outside the first iron core column, the second group of heat dissipation fans are used for blowing to the second iron core column and the coil winding outside the second iron core column, and the third group of heat dissipation fans are used for blowing to the third iron core column and the coil winding outside the third iron core column.
2. The dry-type transformer according to claim 1, wherein: the cooling fan quantity of first group cooling fan is two, and one of them cooling fan is installed in the tight square steel of the lower clamp of indisputable yoke front side under outside, and another cooling fan is installed in the tight square steel of the lower clamp of indisputable yoke rear side under outside.
3. The dry type transformer according to claim 1, wherein: the coil winding comprises a low-voltage coil and a high-voltage coil, the low-voltage coil is wound outside the first iron core column, the second iron core column and the third iron core column respectively, and the high-voltage coil is wound outside the low-voltage coil; and a lower cushion block is arranged between the bottom ends of the low-voltage coil and the high-voltage coil and the lower clamping square steel, and an upper cushion block is arranged between the top ends of the low-voltage coil and the high-voltage coil and the upper clamping square steel.
4. A dry-type transformer having excellent heat dissipation performance according to claim 3, wherein: a first high-voltage insulator, a second high-voltage insulator and a third high-voltage insulator are arranged outside the upper clamping square steel on the front side of the upper iron yoke, a first high-voltage lead row is mounted on the first high-voltage insulator, a second high-voltage lead row is mounted on the second high-voltage insulator, a third high-voltage lead row is mounted on the third high-voltage insulator, the first high-voltage lead row is connected with a high-voltage coil outside the first iron core column, the second high-voltage lead row is connected with a high-voltage coil outside the second iron core column, and the third high-voltage lead row is connected with a high-voltage coil outside the third iron core column; the upper clamping square steel of the rear side of the upper iron yoke is provided with a zero line copper bar, the outer side of the zero line copper bar is provided with a first low-voltage insulator, a second low-voltage insulator and a third low-voltage insulator, a first low-voltage lead bar is installed on the first low-voltage insulator, a second low-voltage lead bar is installed on the second low-voltage insulator, a third low-voltage lead bar is installed on the third low-voltage insulator, the first low-voltage lead bar is connected with a low-voltage coil outside the first iron core column, the second low-voltage lead bar is connected with a low-voltage coil outside the second iron core column, and the third low-voltage lead bar is connected with a low-voltage coil outside the third iron core column.
5. The dry-type transformer according to claim 4, wherein: the high-voltage coil outside the first iron core column is a first-phase high-voltage coil, the high-voltage coil outside the second iron core column is a second-phase high-voltage coil, the high-voltage coil outside the third iron core column is a third-phase high-voltage coil, the three-phase high-voltage coil is provided with an upper outlet terminal and a lower outlet terminal, a high-voltage connecting rod is connected between the lower outlet terminal of the first-phase high-voltage coil and the upper outlet terminal of the second-phase high-voltage coil, a high-voltage connecting rod is connected between the lower outlet terminal of the second-phase high-voltage coil and the upper outlet terminal of the third-phase high-voltage coil, the high-voltage connecting rod is connected between the lower outlet terminal of the third-phase high-voltage coil and the upper outlet terminal of the first-phase high-voltage coil, the first high-voltage outlet line is connected with the upper outlet terminal of the first-phase high-voltage coil, the second high-voltage outlet line is connected with the upper outlet terminal of the second-phase high-voltage coil, and the third high-voltage outlet line is connected with the upper outlet terminal of the third-phase high-voltage coil.
6. The dry-type transformer according to claim 1, wherein: an upper insulation plate is arranged between the upper iron yoke and the upper clamping square steel, an upper bolt is arranged between two ends of the two upper clamping square steels, and the two upper clamping square steels are locked by the upper bolt; and a lower insulating plate is arranged between the lower iron yoke and the lower clamping square steel, a lower bolt is arranged between two ends of the two lower clamping square steels, and the two lower clamping square steels are locked by the lower bolt.
7. The dry type transformer according to claim 6, wherein: the front side and the rear side of the first iron core column, the second iron core column and the third iron core column are respectively provided with an insulating pull plate, the upper end of each insulating pull plate is fixedly connected with the upper clamping square steel, and the lower end of each insulating pull plate is fixedly connected with the lower clamping square steel; and plastic steel straps are bound on the outer sides of the first iron core column, the second iron core column and the third iron core column at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123347576.XU CN217061682U (en) | 2021-12-29 | 2021-12-29 | Dry-type transformer with good heat dissipation performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123347576.XU CN217061682U (en) | 2021-12-29 | 2021-12-29 | Dry-type transformer with good heat dissipation performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217061682U true CN217061682U (en) | 2022-07-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123347576.XU Active CN217061682U (en) | 2021-12-29 | 2021-12-29 | Dry-type transformer with good heat dissipation performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217061682U (en) |
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2021
- 2021-12-29 CN CN202123347576.XU patent/CN217061682U/en active Active
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