CN202534485U - Magnetic shielding plate used for transformer - Google Patents
Magnetic shielding plate used for transformer Download PDFInfo
- Publication number
- CN202534485U CN202534485U CN2012200790016U CN201220079001U CN202534485U CN 202534485 U CN202534485 U CN 202534485U CN 2012200790016 U CN2012200790016 U CN 2012200790016U CN 201220079001 U CN201220079001 U CN 201220079001U CN 202534485 U CN202534485 U CN 202534485U
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- China
- Prior art keywords
- transformer
- magnetic shielding
- shielding plate
- magnetic shield
- shield panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model discloses a magnetic shielding plate used for a transformer. The magnetic shielding plate is formed by sequentially overlaying and bonding a plurality of oriented silica steel sheets and iron core material sheets through epoxy resin, wherein one ends of each oriented silica steel sheet and each iron core material sheet are provided with through holes, and through holes are coaxially overlaid to form a mounting hole of the magnetic shielding plate; a bolt sleeve made of a fiber-glass reinforced polyester synthetic material is put in the mounting hole, and the magnetic shielding plate is arranged on the inner wall of a transformer box body by adopting a bolt passing through the bolt sleeve; and the magnetic shielding plate is arranged on the inner wall of oil immersed transformer with voltage equal to or higher than 110kV and can be used for avoiding local overheating of the transformer, reducing the loss and improving the power conversion coefficient. The magnetic shielding plate disclosed by the utility model has the advantages of smoothness, compactness, difficult deformation and good magnetic shielding effect.
Description
Technical field
The utility model relates to field transformer, and particularly a kind of transformer is used magnetic shield panel.
Background technology
The particularly large-scale high-tension transformer of transformer can produce huge eddy current loss in its running, increase the loss in the whole transformer lines.In order to reduce the eddy current loss of transformer, normally on the cabinet wall of transformer, barricade is installed at present, to absorb leakage flux corresponding to the high-tension coil place.Existing barricade is made by silicon steel sheet usually; Because the magnetic permeability of silicon steel sheet is lower, in order to obtain Magnetic Shielding Effectiveness preferably, makes barricade thickness very big; Cause that volume of transformer is huge, quality is very heavy; Production cost is higher, and Magnetic Shielding Effectiveness is also not satisfactory, and eddy current loss accounts for transformer efficiency 30-50%.For encouraging vast transformer production producer to be engaged in the research and development of transformer with barricade, national grid is stipulated when project for bidding: load loss whenever exceeds 1kw, in the total quotation of its product, deducts 10,000 yuan.
The utility model content
It is high that the technical problem that the utility model will solve provides a kind of permeability, and volume is little, and the transformer that price is low, shield effectiveness is good is used magnetic shield panel.
For achieving the above object, the technical scheme of the utility model is following:
A kind of transformer is used magnetic shield panel; Said magnetic shield panel is by polylith orientation silicon steel sheet and the core material sheet is stacked successively and form through adhering with epoxy resin; End at each piece orientation silicon steel sheet and core material sheet offers a through hole; The coaxial stack of these through holes back forms the installing hole of a magnetic shield panel, and the bolt sleeve that placement one is processed by the fibre-glass reinforced polyester synthetic material in said installing hole, magnetic shield panel adopt the bolt that passes bolt sleeve to be installed on the transformer-cabinet inwall.
Preferably, said magnetic shield panel thickness is 40mm.
Preferably, said orientation silicon steel sheet and core material sheet thickness deviation are ± 0.5mm.
Through technique scheme, the beneficial effect of the utility model is:
The utility model magnetic shield panel is installed on voltage 110kV and invading on the formula transformer inwall to oil, its can avoid the transformer part overheated, reduce the wastage, improve power conversion coefficient; The utility model magnetic shield panel is smooth and compact, and not yielding, Magnetic Shielding Effectiveness is good.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the utility model magnetic shield panel vertical view;
Fig. 2 is the utility model magnetic shield panel end view.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
Extremely shown in Figure 2 referring to Fig. 1; A kind of transformer of the utility model uses magnetic shield panel 10 stacked successively and form through adhering with epoxy resin with the core material sheet for ± 0.5mm polylith orientation silicon steel sheet 11 by thickness deviation; End at each piece orientation silicon steel sheet 11 and core material sheet offers a through hole; The coaxial stack of these through holes back forms the installing hole 12 of a magnetic shield panel 10; The bolt sleeve 13 that placement one is processed by the fibre-glass reinforced polyester synthetic material in installing hole 12, magnetic shield panel 10 adopts the bolt that passes bolt sleeve 13 to be installed on the transformer-cabinet inwall.Magnetic shield panel thickness is 40mm.
More than show and described basic principle of the utility model and the advantage of principal character and the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection range to be defined by appending claims and equivalent thereof.
Claims (3)
1. a transformer is used magnetic shield panel; Said magnetic shield panel is by polylith orientation silicon steel sheet and the core material sheet is stacked successively and form through adhering with epoxy resin; End at each piece orientation silicon steel sheet and core material sheet offers a through hole; The coaxial stack of these through holes back forms the installing hole of a magnetic shield panel, and the bolt sleeve that placement one is processed by the fibre-glass reinforced polyester synthetic material in said installing hole, magnetic shield panel adopt the bolt that passes bolt sleeve to be installed on the transformer-cabinet inwall.
2. a kind of transformer according to claim 1 is used magnetic shield panel, it is characterized in that: said magnetic shield panel thickness is 40mm.
3. a kind of transformer according to claim 1 is used magnetic shield panel, it is characterized in that: said orientation silicon steel sheet and core material sheet thickness deviation are ± 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200790016U CN202534485U (en) | 2012-03-05 | 2012-03-05 | Magnetic shielding plate used for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200790016U CN202534485U (en) | 2012-03-05 | 2012-03-05 | Magnetic shielding plate used for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202534485U true CN202534485U (en) | 2012-11-14 |
Family
ID=47135649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200790016U Expired - Fee Related CN202534485U (en) | 2012-03-05 | 2012-03-05 | Magnetic shielding plate used for transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202534485U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI716489B (en) * | 2016-02-05 | 2021-01-21 | 台灣積體電路製造股份有限公司 | Board, semiconductor fabrication plant (fab) and fabrication facility |
-
2012
- 2012-03-05 CN CN2012200790016U patent/CN202534485U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI716489B (en) * | 2016-02-05 | 2021-01-21 | 台灣積體電路製造股份有限公司 | Board, semiconductor fabrication plant (fab) and fabrication facility |
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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 |
Granted publication date: 20121114 Termination date: 20150305 |
|
| EXPY | Termination of patent right or utility model |