CN204614637U - A kind of Novel photovoltaic contravariant transformer - Google Patents
A kind of Novel photovoltaic contravariant transformer Download PDFInfo
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- CN204614637U CN204614637U CN201520369911.1U CN201520369911U CN204614637U CN 204614637 U CN204614637 U CN 204614637U CN 201520369911 U CN201520369911 U CN 201520369911U CN 204614637 U CN204614637 U CN 204614637U
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Abstract
The utility model relates to a kind of Novel photovoltaic contravariant transformer, comprises protective casing, reactor and tap-changing windings.Protective casing upper surface establishes input terminal and outlet terminal.Reactor and tap-changing windings all at least one and be positioned at protective casing and isolated by aluminium foil guard screen between reactor and tap-changing windings.Tap-changing windings comprises iron core column, input winding, exports winding and inductance coil.Wherein input winding to be looped around in iron core column.Export winding to be looped around outside input winding.Inductance coil wound core post distributes and its one end and output windings in series, and the other end is connected with outlet terminal.Reactor is another respectively with input terminal and input windings in series.The utility model volume is little, lightweight, has good Short Circuit withstand, antijamming capability, electromagnetic eddy loss is little, can meet the needs that larger current exports, eliminate independently filter reactance device simultaneously, greatly simplify photovoltaic inversion voltage-regulating system, improve the operating efficiency of transformer.
Description
Technical field
The utility model relates to a kind of Novel photovoltaic contravariant transformer, belongs to photovoltaic generation technical field of transformer equipment.
Background technology
At present when carrying out photovoltaic generation, the electric energy sent due to photovoltaic is direct current, therefore in order to meet the needs be connected with power supply grid, usually needing to be reverse into alternating current by power transformer to the electric energy that photovoltaic sends, after then carrying out voltage modulated, grid-connected power supply can be realized.Method the most frequently used is at present the electric energy that transferred out by photovoltaic system after the equipment such as reactor processes after filtering, utilizes contravariant transformer to carry out modulation treatment to voltage.Although this kind of method can meet the needs of inversion, but whole inversion voltage-regulating system relative complex, deadweight, volume and larger and current the used contravariant transformer of floor space also also exist the drawback owing to lacking necessary safeguard procedures simultaneously, transformer is caused to there is serious eddy current loss and leakage inductance phenomenon, result in energy loss when transformer runs comparatively large, operating efficiency is relatively low.Therefore in the urgent need to developing the needs that a kind of novel high-efficiency photovoltaic generating transformer uses with satisfied reality.
Utility model content
For the deficiency that prior art exists, the utility model provides a kind of Novel photovoltaic contravariant transformer.This utility model structure is simple, rationally distributed, volume is little, lightweight and there is good Short Circuit withstand, antijamming capability, electromagnetic eddy loss is little, can meet the needs that larger current exports, eliminate independently filter reactance device simultaneously, greatly simplify photovoltaic inversion voltage-regulating system, improve the operating efficiency of transformer.
To achieve these goals, the utility model realizes by the following technical solutions:
A kind of Novel photovoltaic contravariant transformer, comprises protective casing, reactor and tap-changing windings.Wherein protective casing is confined space structure and its upper surface establishes input terminal and outlet terminal.Reactor and tap-changing windings all at least one and be positioned at protective casing and isolated by aluminium foil guard screen between reactor and tap-changing windings.Tap-changing windings comprises iron core column, input winding, exports winding and inductance coil.Wherein input winding to be looped around in iron core column and to distribute with iron core column is concentric.Export winding to be looped around outside input winding and winding is concentric distributes with input, and input winding and export between winding and separately establish aluminium foil guard screen to isolate.Inductance coil wound core post distributes and its one end and output windings in series, and the other end is connected with outlet terminal.Input winding, output winding and inductance coil outer surface separately have insulating resin composite protection layer.Aluminium foil guard screen is separately established to isolate between inductance coil and output winding.Aluminium foil guard screen and protective casing, iron core column, input winding, export between winding, inductance coil and aluminium foil guard screen and all establish insulator.Reactor is another respectively with input terminal and input windings in series.
Further, described protective casing inner surface separately covers insulating protective layer, and protective casing outer surface establishes heating panel.
Further, described aluminium foil guard screen comprises rigid insulation base material and aluminium foil, and wherein Aluminium Foil Package to overlay on outside rigid insulation base material and at least one deck.
Further, when establishing multiple tap-changing windings in described protective casing, input winding then between multiple tap-changing windings, output winding are connected by bus bar and are isolated by insulator between adjacent bus bar, when establishing multiple reactor in protective casing, then connect successively between reactor.
The utility model structure is simple, rationally distributed, volume is little, lightweight and there is good Short Circuit withstand, antijamming capability, electromagnetic eddy loss is little, can meet the needs that larger current exports, eliminate independently filter reactance device simultaneously, greatly simplify photovoltaic inversion voltage-regulating system, improve the operating efficiency of transformer.
Accompanying drawing explanation
The utility model is described in detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the utility model structural representation.
Fig. 2 is aluminium foil guard screen structural representation.
Embodiment
The technological means realized for making the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the utility model further.
A kind of Novel photovoltaic contravariant transformer as described in Figure 1, comprises protective casing 1, reactor 2 and tap-changing windings 3.Wherein protective casing 1 is for confined space structure and its upper surface establishes input terminal 4 and outlet terminal 5.Reactor 2 and tap-changing windings 3 equal at least one and be positioned at protective casing 1 and isolated by aluminium foil guard screen 6 between reactor 2 and tap-changing windings 3.
In the present embodiment, described tap-changing windings 3 comprises iron core column 31, input winding 32, exports winding 33 and inductance coil 34.Wherein input winding 32 to be looped around in iron core column 31 and to distribute with iron core column 31 is concentric.Export winding 33 to be looped around outside input winding 32 and winding 32 is concentric distributes with input, and input winding 32 and export between winding 33 and separately establish aluminium foil guard screen 6 to isolate.Inductance coil 34 wound core post 31 distributes and connect with output winding 33 in its one end, and the other end is connected with outlet terminal 5.Input winding 32, output winding 33 and inductance coil 34 outer surface separately have insulating resin composite protection layer 35.Aluminium foil guard screen 6 is separately established to isolate between inductance coil 34 and output winding 33.Aluminium foil guard screen 6 and protective casing 1, iron core column 31, input winding 32, export winding 33, between inductance coil 34 and aluminium foil guard screen 6, all establish insulator 7.Reactor 2 is another respectively with input terminal 4 and input winding 31 and connect.
Further, described protective casing 1 inner surface separately covers insulating protective layer 8, and protective casing 1 outer surface establishes heating panel 9.
Further, described aluminium foil guard screen 6 comprises rigid insulation base material 61 and aluminium foil 62, and wherein aluminium foil 62 to be coated on outside rigid insulation base material 61 and at least one deck.
Further, when establishing multiple tap-changing windings 3 in described protective casing 1, input winding 32 then between multiple tap-changing windings 3, output winding 33 are connected by bus bar 36 and are isolated by insulator 7 between adjacent bus bar 36, when establishing multiple reactor 2 in protective casing 1, then connect successively between reactor 2.
The utility model structure is simple, rationally distributed, volume is little, lightweight and there is good Short Circuit withstand, antijamming capability, electromagnetic eddy loss is little, can meet the needs that larger current exports, eliminate independently filter reactance device simultaneously, greatly simplify photovoltaic inversion voltage-regulating system, improve the operating efficiency of transformer.
More than show and describe general principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand, and the utility model is not restricted to the described embodiments.What describe in above-described embodiment and specification just illustrates principle of the present utility model.Under the prerequisite not departing from the utility model spirit and scope, the utility model also has various changes and modifications.These changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. a Novel photovoltaic contravariant transformer, it is characterized in that: described photovoltaic inversion transformer comprises protective casing, reactor and tap-changing windings, wherein said protective casing is confined space structure and its upper surface establishes input terminal and outlet terminal, described reactor and tap-changing windings all at least one and be positioned at protective casing and isolated by aluminium foil guard screen between reactor and tap-changing windings, described tap-changing windings comprises iron core column, input winding, export winding and inductance coil, wherein said input winding to be looped around in iron core column and to distribute with iron core column is concentric, described output winding is looped around outside input winding and winding is concentric distributes with input, and separately establish aluminium foil guard screen to isolate between described input winding and output winding, described inductance coil wound core post distribution, and its one end and output windings in series, the other end is connected with outlet terminal, described input winding, output winding and inductance coil outer surface separately have insulating resin composite protection layer, aluminium foil guard screen is separately established to isolate between described inductance coil and output winding, described aluminium foil guard screen and protective casing, iron core column, input winding, export winding, all insulator is established between inductance coil and aluminium foil guard screen, described reactor is another respectively with input terminal and input windings in series.
2. a kind of Novel photovoltaic contravariant transformer according to claim 1, is characterized in that: described protective casing inner surface separately covers insulating protective layer, and protective casing outer surface establishes heating panel.
3. a kind of Novel photovoltaic contravariant transformer according to claim 1, is characterized in that: described aluminium foil guard screen comprises rigid insulation base material and aluminium foil, and wherein Aluminium Foil Package to overlay on outside rigid insulation base material and at least one deck.
4. a kind of Novel photovoltaic contravariant transformer according to claim 1, it is characterized in that: when establishing multiple tap-changing windings in described protective casing, input winding then between multiple tap-changing windings, output winding are connected by bus bar and are isolated by insulator between adjacent bus bar, when establishing multiple reactor in protective casing, then connect successively between reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520369911.1U CN204614637U (en) | 2015-05-29 | 2015-05-29 | A kind of Novel photovoltaic contravariant transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520369911.1U CN204614637U (en) | 2015-05-29 | 2015-05-29 | A kind of Novel photovoltaic contravariant transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204614637U true CN204614637U (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520369911.1U Expired - Fee Related CN204614637U (en) | 2015-05-29 | 2015-05-29 | A kind of Novel photovoltaic contravariant transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN204614637U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105225811A (en) * | 2015-10-21 | 2016-01-06 | 国家电网公司 | A kind of invention photovoltaic inversion transformer |
| CN105261464A (en) * | 2015-11-09 | 2016-01-20 | 国家电网公司 | Low-loss transformer for photovoltaic power generation |
-
2015
- 2015-05-29 CN CN201520369911.1U patent/CN204614637U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105225811A (en) * | 2015-10-21 | 2016-01-06 | 国家电网公司 | A kind of invention photovoltaic inversion transformer |
| CN105261464A (en) * | 2015-11-09 | 2016-01-20 | 国家电网公司 | Low-loss transformer for photovoltaic power generation |
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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: 20150902 Termination date: 20170529 |