CN201804683U - Lightningproof transformer - Google Patents
Lightningproof transformer Download PDFInfo
- Publication number
- CN201804683U CN201804683U CN2010205496937U CN201020549693U CN201804683U CN 201804683 U CN201804683 U CN 201804683U CN 2010205496937 U CN2010205496937 U CN 2010205496937U CN 201020549693 U CN201020549693 U CN 201020549693U CN 201804683 U CN201804683 U CN 201804683U
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- Prior art keywords
- winding
- screen
- transformer
- secondary winding
- lightning protection
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Abstract
The utility model provides a lightningproof transformer which comprises a primary winding and a secondary winding, wherein a plurality of shielding layers are arranged between the opposite inner sides of the primary winding and the secondary winding, and the shielding layer which is near to one side of the primary winding and the shielding layer which is near to one side of the secondary winding are respectively connected to the different undergrounds. The shielding layer which is near to one side of the primary winding and the shielding layer which is near to one side of the secondary winding are respectively connected to the different undergrounds, so that the lightningproof transformer leads the generated current or voltage to be capable of being independently led to the underground to prevent the other winding of the transformer from being damaged when any one of the primary winding and the secondary winding is struck by lightning.
Description
Technical field
The utility model relates to the power technology field, specifically, relates to a kind of lightning protection transformer.
Background technology
Thunderbolt is a kind of natural phenomena that has destructive power, and its voltage can be up to millions of volts, and immediate current can be up to hundreds thousand of amperes.China is vast in territory, is in the subtropical zone such as most of areas, south, and lightening activity is frequent, so the accident of the annual supply of electric power fault that causes because of the thunder and lightning disaster takes place frequently, the people's production and life has all been brought seriously influence.Therefore, for reducing the infringement that thunderbolt causes normal supply of electric power, a lot of enterprises have all selected lightning protection transformer for use.
Fig. 1 is the internal structure block diagram of the lightning protection transformer of prior art.As shown in the figure, existing lightning protection transformer 100 comprises elementary winding 102 and secondary winding 104, be provided with one or two screen 106,108 between its inboard in opposite directions, separate with insulating barrier 110 between screen and the screen and between the winding that is adjacent of screen, described screen 106,108 is connected to a ground (GND).
But, thunderbolt takes place in, because the screen of existing lightning protection transformer is connected to same ground, when causing that any one winding is subjected to being struck by lightning in elementary winding or the secondary winding, the curtage of its generation can be delivered in another winding, and another winding of transformer is caused damage.
In addition, existing lightning protection transformer makes that the effect of the anti-electromagnetic interference of whole transformer is also bad because single screen is thicker.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of lightning protection transformer, when any one winding is subjected to being struck by lightning in elementary winding or secondary winding, the curtage of its generation can import underground individually, can another winding of transformer not caused damage.
For solving the problems of the technologies described above, the utility model provides a kind of lightning protection transformer, comprise elementary winding and secondary winding, be provided with screen between described elementary winding and the secondary winding inboard in opposite directions, described screen has a plurality of, and the screen of close described elementary winding one side is connected respectively to different ground with the screen of close described secondary winding one side.
Alternatively, the outside of described elementary winding or secondary winding also is provided with screen, and the screen that is positioned at each winding outside is connected to identical ground together with the screen of close each winding inboard respectively.
Alternatively, be provided with insulating barrier between described a plurality of screen or between the winding that is adjacent of screen.
Alternatively, the material of described screen comprises Copper Foil.
Compared with prior art, the utlity model has following advantage:
The utility model is connected respectively to different ground with the screen near elementary winding one side in the transformer with the screen of close secondary winding one side, when any one winding is subjected to being struck by lightning in elementary winding or secondary winding like this, wherein the curtage of Chan Shenging can import undergroundly individually, can another winding of transformer not caused damage.
According to actual needs, the outside at elementary winding or secondary winding also is provided with screen, and it is connected to identical ground respectively with near the screen of this winding inboard together, can improve the lightning protection effect of transformer further, and promote the performance of the anti-electromagnetic interference of transformer.
In addition, the Copper Foil of the material selection thinner thickness of screen also can further promote the performance of the anti-electromagnetic interference of transformer.
Description of drawings
The above and other feature of the present utility model, character and advantage will become more obvious by the description below in conjunction with drawings and Examples, wherein:
Fig. 1 is the internal structure block diagram of the lightning protection transformer of prior art;
Fig. 2 is the internal structure block diagram of the lightning protection transformer of an embodiment of the utility model;
Fig. 3 is the internal structure block diagram of the lightning protection transformer of another embodiment of the utility model;
Fig. 4 is the internal structure block diagram of the lightning protection transformer of another embodiment of the utility model;
Fig. 5 is the internal structure block diagram of the lightning protection transformer of another embodiment of the utility model.
Embodiment
The utility model is described in further detail below in conjunction with specific embodiments and the drawings, but should not limit protection range of the present utility model with this.
Fig. 2 is the internal structure block diagram of the lightning protection transformer of an embodiment of the utility model.As shown in the figure, this lightning protection transformer 200 can comprise elementary winding 202 and secondary winding 204, be provided with two screens 206,208 between elementary winding 202 and secondary winding 204 inboard in opposite directions, separate with insulating barrier 210 between screen 206 and the screen 208 and between the winding that is adjacent of screen 206,208, near the screen 206 of elementary winding 202 1 sides and screen 208 near secondary winding 204 1 sides be connected respectively to different ground 1 and 2.
In the present embodiment, the ground 1 that elementary winding connected can be called lightning proof ground (being connected to earth mat), and the ground 2 that secondary winding connected can be called safely (equipment protection ground).
Fig. 3 is the internal structure block diagram of the lightning protection transformer of another embodiment of the utility model.As shown in the figure, this lightning protection transformer 200 can be provided with three screens 206,208 and 212 between the inboard in opposite directions of elementary winding 202 and secondary winding 204, so just can carry out better lightning protection and interference shielding to the some windings in elementary winding 202 and the secondary winding 204 according to actual needs.
Fig. 4 is the internal structure block diagram of the lightning protection transformer of another embodiment of the utility model.As shown in the figure, this lightning protection transformer 200 can also be provided with screen 214,216 in the outside of elementary winding 202 or secondary winding 204, the screen 214,216 that is positioned at each winding outside is connected to identical ground 1 or ground 2 together with the screen 206,208 of close each winding inboard respectively.
Fig. 5 is the internal structure block diagram of the lightning protection transformer of another embodiment of the utility model.As shown in the figure, this lightning protection transformer 200 can be both has screen 214,216 in the arranged outside of elementary winding 202 or secondary winding 204, three screens 206,208 and 212 are set between the inboard in opposite directions of elementary winding 202 and secondary winding 204 again, so just can further carry out better lightning protection and interference shielding to the some windings in elementary winding 202 and the secondary winding 204 according to actual needs.
In the utility model, the material of screen can comprise Copper Foil, and its thinner thickness helps to promote the performance of the anti-electromagnetic interference of transformer.
The utility model is connected respectively to different ground with the screen near elementary winding one side in the transformer with the screen of close secondary winding one side, when any one winding is subjected to being struck by lightning in elementary winding or secondary winding like this, wherein the curtage of Chan Shenging can import undergroundly individually, can another winding of transformer not caused damage.
According to actual needs, the outside at elementary winding or secondary winding also is provided with screen, and it is connected to identical ground respectively with near the screen of this winding inboard together, can improve the lightning protection effect of transformer further, and promote the performance of the anti-electromagnetic interference of transformer.
In addition, the Copper Foil of the material selection thinner thickness of screen also can further promote the performance of the anti-electromagnetic interference of transformer.
Though the utility model with preferred embodiment openly as above; but it is not to be used for limiting the utility model; any those skilled in the art are not in breaking away from spirit and scope of the present utility model; can make possible change and modification, therefore protection range of the present utility model should be as the criterion with the scope that the utility model claim is defined.
Claims (4)
1. lightning protection transformer, comprise elementary winding and secondary winding, be provided with screen between described elementary winding and the secondary winding inboard in opposite directions, it is characterized in that, described screen has a plurality of, and the screen of close described elementary winding one side is connected respectively to different ground with the screen of close described secondary winding one side.
2. lightning protection transformer according to claim 1 is characterized in that, the outside of described elementary winding or secondary winding also is provided with screen, and the screen that is positioned at each winding outside is connected to identical ground together with the screen of close each winding inboard respectively.
3. lightning protection transformer according to claim 1 and 2 is characterized in that, is provided with insulating barrier between described a plurality of screens or between the winding that is adjacent of screen.
4. lightning protection transformer according to claim 1 and 2 is characterized in that the material of described screen comprises Copper Foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205496937U CN201804683U (en) | 2010-10-09 | 2010-10-09 | Lightningproof transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205496937U CN201804683U (en) | 2010-10-09 | 2010-10-09 | Lightningproof transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201804683U true CN201804683U (en) | 2011-04-20 |
Family
ID=43874186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205496937U Expired - Fee Related CN201804683U (en) | 2010-10-09 | 2010-10-09 | Lightningproof transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201804683U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207501A (en) * | 2015-10-27 | 2015-12-30 | 丹阳奇烨科技有限公司 | Switching power supply capable of resisting 20 KV lightning strokes |
| CN108305764A (en) * | 2018-01-19 | 2018-07-20 | 全球能源互联网研究院有限公司 | A kind of dry type high frequency transformer |
| CN113488321A (en) * | 2021-06-03 | 2021-10-08 | 华为技术有限公司 | Dry-type transformer and winding method thereof |
-
2010
- 2010-10-09 CN CN2010205496937U patent/CN201804683U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207501A (en) * | 2015-10-27 | 2015-12-30 | 丹阳奇烨科技有限公司 | Switching power supply capable of resisting 20 KV lightning strokes |
| CN108305764A (en) * | 2018-01-19 | 2018-07-20 | 全球能源互联网研究院有限公司 | A kind of dry type high frequency transformer |
| CN113488321A (en) * | 2021-06-03 | 2021-10-08 | 华为技术有限公司 | Dry-type transformer and winding method thereof |
| CN113488321B (en) * | 2021-06-03 | 2022-09-16 | 华为数字能源技术有限公司 | Dry-type transformer and winding method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20131009 |