CN210489382U - Iron core structure of dry type transformer - Google Patents
Iron core structure of dry type transformer Download PDFInfo
- Publication number
- CN210489382U CN210489382U CN201921445442.1U CN201921445442U CN210489382U CN 210489382 U CN210489382 U CN 210489382U CN 201921445442 U CN201921445442 U CN 201921445442U CN 210489382 U CN210489382 U CN 210489382U
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- clamping piece
- voltage
- iron core
- low
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- Expired - Fee Related
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000004593 Epoxy Substances 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000741 silica gel Substances 0.000 abstract description 2
- 229910002027 silica gel Inorganic materials 0.000 abstract description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Regulation Of General Use Transformers (AREA)
Abstract
The utility model provides an iron core structure of dry-type transformer, include: the iron core is provided with a low-voltage upper clamping piece on one side of the upper end of the iron core and a high-voltage upper clamping piece on the other side, a low-voltage lower clamping piece is arranged on one side of the lower end of the iron core, a high-voltage lower clamping piece is arranged on the other side of the lower end of the iron core, a pulling plate is arranged between the low-voltage upper clamping piece and the high-voltage upper clamping piece, a pulling plate insulating piece and a clamping piece insulating piece are arranged between the low-voltage upper clamping piece and the pulling plate and between the high-voltage upper clamping piece and the pulling plate, lower ends of the low-voltage lower clamping piece and the high-voltage lower clamping piece are mounted on an iron core base through clamping piece fixing bolts, and silica gel pads and epoxy plates are arranged at the upper end and the lower end of the iron core. The utility model discloses mechanical strength is high, and anti short circuit ability reinforce, and partial discharge is little, and thermal stability is good, and the reliability is high, long service life.
Description
Technical Field
The utility model relates to a transformer technical field specifically is a dry-type transformer's iron core structure.
Background
A Transformer (Transformer) is a device that changes an alternating-current voltage by 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: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), and the like, and dry-type transformers are widely used in places such as local lighting, high-rise buildings, airports, wharf CNC mechanical equipment, and the like, and simply, dry-type transformers refer to transformers in which iron cores and windings are not immersed in insulating oil.
However, the existing dry-type transformer is unreasonable in structural design, large in heat productivity and incapable of timely dissipating heat, so that the service life of the whole equipment is short, and potential safety hazards exist.
Disclosure of Invention
The technical problem solved by the present invention is to provide an iron core structure of a dry transformer to solve the problems in the background art.
The utility model provides a technical problem adopt following technical scheme to realize: a core structure of a dry-type transformer, comprising: the iron core is provided with a low-voltage upper clamping piece on one side of the upper end of the iron core and a high-voltage upper clamping piece on the other side, a low-voltage lower clamping piece is arranged on one side of the lower end of the iron core, a high-voltage lower clamping piece is arranged on the other side of the lower end of the iron core, a pulling plate is arranged between the low-voltage upper clamping piece and the high-voltage upper clamping piece, a pulling plate insulating piece and a clamping piece insulating piece are arranged between the low-voltage upper clamping piece and the pulling plate and between the high-voltage upper clamping piece and the pulling plate, lower ends of the low-voltage lower clamping piece and the high-voltage lower clamping piece are mounted on an iron core base through clamping piece fixing bolts, and silica gel pads and epoxy plates are arranged at the upper end and the lower end of the iron core.
The grounding piece is arranged on one side of the low-voltage upper clamping piece and one side of the high-voltage upper clamping piece and is fixedly installed through a grounding piece bolt, and a grounding piece elastic pad and a grounding piece flat pad are arranged between the grounding piece bolt and the grounding piece
And pad feet are arranged on the lower sides of the low-voltage lower clamping piece and the high-voltage lower clamping piece and are fixedly installed through pad foot fixing bolts and pad foot fixing nuts, and pad foot insulating pieces are arranged between the pad feet and the low-voltage lower clamping piece and between the pad feet and the high-voltage lower clamping piece.
The clamp fixing bolt is fixedly installed through a nut, an elastic pad and an inclined pad are arranged between the nut and the clamp fixing bolt, and base insulating pieces are arranged between the low-voltage lower clamp, the high-voltage lower clamp and the iron core base.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses mechanical strength is high, and anti short circuit ability reinforce, and partial discharge is little, and thermal stability is good, and the reliability is high, long service life.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a schematic side view of the present invention.
Fig. 3 is a cross-sectional view at AA of fig. 1.
Fig. 4 is a cross-sectional view at BB of fig. 1.
Detailed Description
In order to make the technical means, the characteristics of creation, the objects achieved and the functions of the present invention easy to understand, the present invention will be further explained with reference to the detailed drawings, and in the description of the present invention, it should be noted that unless otherwise specified or limited, the terms "mounted", "connected" and "connected" should be interpreted broadly, for example, they may be fixed or detachable or they may be connected integrally, mechanically or electrically, directly or indirectly through an intermediate medium, or they may be connected inside two elements.
As shown in fig. 1 to 4, an iron core structure of a dry type transformer includes: the iron core is 2, a low-voltage upper clamping piece 1 is arranged on one side of the upper end of the iron core 2, a high-voltage upper clamping piece 20 is arranged on the other side of the upper end of the iron core, a low-voltage lower clamping piece 17 is arranged on one side of the lower end of the iron core 2, a high-voltage lower clamping piece is arranged on the other side of the lower end of the iron core, a pulling plate 8 is arranged between the low-voltage upper clamping piece 1 and the high-voltage upper clamping piece 20, a pulling plate insulating piece 5 and a clamping piece insulating piece 18 are arranged between the low-voltage upper clamping piece 1 and the high-voltage upper clamping piece 20 and the pulling plate 8, the pulling plate insulating piece 5 and the clamping piece insulating piece 18 are arranged between the low-voltage lower clamping piece 17 and the high-voltage upper clamping piece and the pulling plate 8, the lower ends of the low-voltage lower clamping piece 17 and the high-voltage lower clamping.
The low-voltage upper clamping piece 1 and the high-voltage upper clamping piece 20 are provided with grounding pieces 6 on one sides, the grounding pieces 6 are fixedly installed through grounding piece bolts, and grounding piece elastic pads and grounding piece flat pads are arranged between the grounding piece bolts and the grounding pieces 6
The lower sides of the low-voltage lower clamping piece 17 and the high-voltage lower clamping piece are provided with a pad 15, the pad 15 is fixedly installed through a pad fixing bolt and a pad fixing nut, and a pad insulating piece is arranged between the pad 15 and the low-voltage lower clamping piece 17 and between the pad 15 and the high-voltage lower clamping piece.
The clamp fixing bolt 10 is fixedly installed through a nut, an elastic pad and an inclined pad are arranged between the nut and the clamp fixing bolt 10, and base insulating pieces are arranged between the low-voltage lower clamp 17 and the high-voltage lower clamp and the iron core base 14.
The utility model discloses mechanical strength is high, and anti short circuit ability reinforce, and partial discharge is little, and thermal stability is good, and the reliability is high, long service life, the utility model discloses the iron core adopts high-quality cold rolling grain orientation silicon steel sheet, and iron core silicon steel sheet adopts 45 degrees full oblique joints, makes the magnetic flux pass through along silicon steel sheet seam direction. The iron core adopts a high-quality cold-rolled grain-oriented silicon steel sheet, and the iron core silicon steel sheet adopts a 45-degree fully-inclined seam, so that magnetic flux passes along the seam direction of the silicon steel sheet.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A core structure of a dry-type transformer, comprising: an iron core, characterized in that: the iron core is characterized in that a low-voltage upper clamping piece is arranged on one side of the upper end of the iron core, a high-voltage upper clamping piece is arranged on the other side of the upper end of the iron core, a low-voltage lower clamping piece is arranged on one side of the lower end of the iron core, a high-voltage lower clamping piece is arranged on the other side of the lower end of the iron core, a pulling plate is arranged between the low-voltage upper clamping piece and the high-voltage upper clamping piece, a pulling plate insulating piece and a clamping piece insulating piece are arranged between the low-voltage upper clamping piece and the high-voltage upper clamping piece and between the pulling plate and the low-voltage upper clamping piece and between the high-voltage upper clamping piece and the pulling plate, the lower ends of the low-voltage lower clamping piece and the high-voltage lower clamping piece are.
2. A core structure of a dry-type transformer as recited in claim 1, wherein: and a grounding piece is arranged on one side of the low-voltage upper clamping piece and one side of the high-voltage upper clamping piece, the grounding piece is fixedly installed through a grounding piece bolt, and a grounding piece elastic pad and a grounding piece flat pad are arranged between the grounding piece bolt and the grounding piece.
3. A core structure of a dry-type transformer as recited in claim 1 or 2, wherein: and pad feet are arranged on the lower sides of the low-voltage lower clamping piece and the high-voltage lower clamping piece and are fixedly installed through pad foot fixing bolts and pad foot fixing nuts, and pad foot insulating pieces are arranged between the pad feet and the low-voltage lower clamping piece and between the pad feet and the high-voltage lower clamping piece.
4. A core structure of a dry-type transformer as recited in claim 1 or 2, wherein: the clamp fixing bolt is fixedly installed through a nut, an elastic pad and an inclined pad are arranged between the nut and the clamp fixing bolt, and base insulating pieces are arranged between the low-voltage lower clamp, the high-voltage lower clamp and the iron core base.
5. A core structure of a dry-type transformer as recited in claim 3, wherein: the clamp fixing bolt is fixedly installed through a nut, an elastic pad and an inclined pad are arranged between the nut and the clamp fixing bolt, and base insulating pieces are arranged between the low-voltage lower clamp, the high-voltage lower clamp and the iron core base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921445442.1U CN210489382U (en) | 2019-09-02 | 2019-09-02 | Iron core structure of dry type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921445442.1U CN210489382U (en) | 2019-09-02 | 2019-09-02 | Iron core structure of dry type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210489382U true CN210489382U (en) | 2020-05-08 |
Family
ID=70538628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921445442.1U Expired - Fee Related CN210489382U (en) | 2019-09-02 | 2019-09-02 | Iron core structure of dry type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210489382U (en) |
-
2019
- 2019-09-02 CN CN201921445442.1U patent/CN210489382U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200508 |