CN204966257U - A dry -type transformer for compact structure in electric power field - Google Patents
A dry -type transformer for compact structure in electric power field Download PDFInfo
- Publication number
- CN204966257U CN204966257U CN201520692328.4U CN201520692328U CN204966257U CN 204966257 U CN204966257 U CN 204966257U CN 201520692328 U CN201520692328 U CN 201520692328U CN 204966257 U CN204966257 U CN 204966257U
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- Prior art keywords
- iron core
- insulating cylinder
- dry
- type transformer
- voltage coil
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Abstract
The utility model provides a dry -type transformer for compact structure in electric power field, includes iron core, low voltage coil, high -pressure coil, insulating cylinder and the insulating body that holds, the iron core includes the indisputable yoke that vertical iron core post of arranging and level were arranged, the low voltage coil winding is in on the iron core post, the high -pressure coil winding is in on the insulating cylinder, high -pressure coil with low voltage coil accomodate in the insulation is held internally, scribble the carbon black resistance layer that is used for shielding the electromagnetic field on the side of insulating cylinder, insulating upper surface that holds the body and lower surface all scribble the heat that is used for shielding the electromagnetic field and spout the zinc metal level, the insulating dielectric constant who holds the body compares the little 2 -5 of dielectric constant of insulating cylinder doubly.
Description
Technical field
The utility model relates to power domain, is specifically related to a kind of dry-type transformer of the compact conformation for power domain.
Background technology
The places such as dry-type transformer is widely used in localized lighting, skyscraper, airport, harbour CNC plant equipment, briefly dry-type transformer just refers to that iron core and winding are not immersed in the transformer in insulating oil.Current, urban and rural power grids pace of construction accelerates, and China's energy output and power consumption grow with each passing day.Typically, often increase the energy output of 1kW, need the transformer total capacity increasing 11kVA; According to estimates, dry-type distribution transformer accounts for the 1/5-1/4 of whole distribution transformer.
Along with the increase of dry-type transformer capacity, its size is also constantly becoming large, and this just means that the floor space of dry-type transformer is constantly becoming large.Meanwhile, for the consideration preventing electrical breakdown, the interval of all parts of dry-type transformer is unfit to do too little, and this hinders the miniaturization of dry-type transformer greatly.Thus, existing dry-type transformer is needed badly and is made a breakthrough in small-sized design.
Utility model content
For the problems referred to above, the utility model provides a kind of dry-type transformer of the compact conformation for power domain.
The purpose of this utility model realizes by the following technical solutions:
For a dry-type transformer for the compact conformation of power domain, comprise iron core, low-voltage coil, high-tension coil, insulating cylinder and insulation housing; Described iron core comprises the iron yoke of iron core column and the horizontal arrangement of vertically arranging, described low-voltage coil is wrapped in described iron core column, and described high-tension coil is wrapped on described insulating cylinder; Described high-tension coil and described low-voltage coil are incorporated in described insulation housing, it is characterized in that, the side of described insulating cylinder scribble the carbon black resistive layer for shield electromagnetic; The upper surface of described insulation housing and lower surface all scribble the hot spray painted zinc metal level for shield electromagnetic.
Preferably, the dielectric constant of described insulation housing is less than the dielectric constant of described insulating cylinder 2-5 times.
The beneficial effects of the utility model are: due to the existence of described resistive layer, effectively can shield the electromagnetic field of described iron core column and described low-voltage coil; Due to the existence of described metal level, electromagnetic field can be controlled in described insulation housing, thus reduce interval required between the upper surface of described insulation housing and described iron yoke, and then reduce the size of dry-type transformer.
Accompanying drawing explanation
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in accompanying drawing does not form any restriction of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the following drawings.
Fig. 1 structural representation of the present utility model;
Fig. 2 is the partial enlarged drawing at " a " place in Fig. 1.
Reference numeral: iron core-1; Iron yoke-2; Iron core column-3; Low-voltage coil-4; Insulating cylinder-5; High-tension coil-6; Carbon black resistive layer-7; Insulation housing-8; Interval-9; Hot spray painted zinc metal level-10.
Embodiment
With the following Examples the utility model is further described.
The dry-type transformer of a kind of compact conformation for power domain as shown in Figure 1, comprises iron core 1, low-voltage coil 4, high-tension coil 6, insulating cylinder 5 and insulation housing 8; Described iron core 1 comprises the iron yoke 2 of the iron core column 3 and horizontal arrangement of vertically arranging, described low-voltage coil 4 is wrapped in described iron core column 3, and described high-tension coil 6 is wrapped on described insulating cylinder 5; Described high-tension coil 6 and described low-voltage coil 4 are incorporated in described insulation housing 8, the side of described insulating cylinder 5 scribble the carbon black resistive layer 7 for shield electromagnetic be made up of conductive black; The upper surface of described insulation housing 8 and lower surface all scribble the hot spray painted zinc metal level 10 for shield electromagnetic be made up of hot spray painted zinc.The dielectric constant of described insulation housing 8 is less than the dielectric constant of described insulating cylinder 5 2-5 times.
As shown in Figure 2, form interval 9 between the upper surface of described insulation housing 8 and described iron yoke 2, the size at described interval 9 is d
1.For the consideration preventing electrical breakdown, d
1often arrange larger, this just makes traditional dry-type transformer size larger.In the utility model, the circumference side of described insulating cylinder 5 scribbles the carbon black resistive layer 7 for shield electromagnetic be made up of conductive black.Like this, due to the existence of described carbon black resistive layer 7, the electromagnetic field of described iron core column 3 and described low-voltage coil 4 effectively can be shielded.The upper surface of described insulation housing 8 and lower surface scribble the hot spray painted zinc metal level 10 for shield electromagnetic be made up of hot spray painted zinc, and its thickness is d
2.Due to the existence of described hot spray painted zinc metal level 10, electromagnetic field can be controlled in described insulation housing 8, thus reduce d
1required size, reduces the size of dry-type transformer further.
Finally should be noted that; above embodiment is only in order to illustrate the technical solution of the utility model; but not the restriction to the utility model protection range; although done to explain to the utility model with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to the technical solution of the utility model or equivalent replacement, and not depart from essence and the scope of technical solutions of the utility model.
Claims (2)
1., for a dry-type transformer for the compact conformation of power domain, comprise iron core, low-voltage coil, high-tension coil, insulating cylinder and insulation housing; Described iron core comprises the iron yoke of iron core column and the horizontal arrangement of vertically arranging, described low-voltage coil is wrapped in described iron core column, and described high-tension coil is wrapped on described insulating cylinder; Described high-tension coil and described low-voltage coil are incorporated in described insulation housing, it is characterized in that, the side of described insulating cylinder scribble the carbon black resistive layer for shield electromagnetic; The upper surface of described insulation housing and lower surface all scribble the hot spray painted zinc metal level for shield electromagnetic.
2. the dry-type transformer of a kind of compact conformation for power domain according to claim 1, is characterized in that, the dielectric constant of described insulation housing is less than the dielectric constant of described insulating cylinder 2-5 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520692328.4U CN204966257U (en) | 2015-09-08 | 2015-09-08 | A dry -type transformer for compact structure in electric power field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520692328.4U CN204966257U (en) | 2015-09-08 | 2015-09-08 | A dry -type transformer for compact structure in electric power field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204966257U true CN204966257U (en) | 2016-01-13 |
Family
ID=55061305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520692328.4U Expired - Fee Related CN204966257U (en) | 2015-09-08 | 2015-09-08 | A dry -type transformer for compact structure in electric power field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204966257U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108831716A (en) * | 2018-08-07 | 2018-11-16 | 江苏宏源电气有限责任公司 | A kind of dry-type transformer insulation system |
-
2015
- 2015-09-08 CN CN201520692328.4U patent/CN204966257U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108831716A (en) * | 2018-08-07 | 2018-11-16 | 江苏宏源电气有限责任公司 | A kind of dry-type transformer insulation system |
| CN108831716B (en) * | 2018-08-07 | 2019-11-22 | 江苏宏源电气有限责任公司 | A kind of dry-type transformer insulation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20170908 |