CN201804693U - Variable pitch power box - Google Patents
Variable pitch power box Download PDFInfo
- Publication number
- CN201804693U CN201804693U CN2010202283290U CN201020228329U CN201804693U CN 201804693 U CN201804693 U CN 201804693U CN 2010202283290 U CN2010202283290 U CN 2010202283290U CN 201020228329 U CN201020228329 U CN 201020228329U CN 201804693 U CN201804693 U CN 201804693U
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- coil
- iron core
- transformer
- connecting terminal
- power supply
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- Expired - Fee Related
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Abstract
A variable pitch power box includes a housing and a transformer arranged in the housing; the transformer is a three-phase dry type transformer, and includes a base, a connecting terminal strip, coils having continuous three-phase windings, an iron core and an iron core frame; both the iron core and the connecting terminal strip are arranged on the iron core frame; the iron core has a frame structure with three struts, and the frame structure is made of silicon-steel plates which are overlapped; the three strut iron cores are wound by the coils; each group of coils has the same structure including a primary coil, a secondary coil, corrugated paper, a tightening belt and insulated gum paper, wherein the primary coil is made of two layers of coils with the corrugated paper therebetween, the corrugated paper is also arranged between the primary coil and the secondary coil, a layer of tightening belt is arranged on the outer layer coil of the primary coil, and the insulated gum paper is arranged on the outer layer of the tightening belt; output terminals of the three groups of the transformer are connected with the connecting terminal strip respectively through a circuit breaker on the housing; and the connecting terminal strip is connected with a heavy-load connector on the housing. The variable pitch power box is suitable for temporary power supply occasions at various voltage classes.
Description
Technical field
The utility model belongs to the power supply box technical field, particularly relates to a kind of change oar power supply box, is applied to the power supply of wind-driven generator pitching mechanism, and the conversion of on-the-spot interim power supply is provided.
Technical background
During wind turbine generator lifting work, scene in the open air, need become the oar operation, because of lifting, do not finish by blower fan, can't power to blade pitch device by the distribution loop of blower fan inside, can only use interim power supply, on-the-spot interim power supply does not all have 3 required phase 230V power supplys of blower fan, generally all the transformer in the distribution loop on the model blower fan of the same race (690V changes 230V) is pulled down, transported to the scene, provide power supply to blade pitch device, but the scene does not have the 690V power supply sometimes, have only the 380V power supply,, power to blade pitch device becoming 230V then with 690V so also need a transformer that 380V is become 690V.Cumbersome, also make the scene more in disorder.And transformer is placed dangerous everywhere, does not have safeguard procedures, can only look for some things on the transformer cover temporarily, rainproof, anti-collision etc., and accidents such as electric shock take place in site operation circumstance complication easily.
The utility model content
At the technical problem of above-mentioned existence, the utility model provides a kind of change oar power supply box, and it makes the power supply of change oar become simple, can adapt to the occasion of the interim power supply of multiple voltage grade.
To achieve these goals, the technical solution of the utility model is as follows:
The utility model comprises shell and places the interior transformer of shell, connect, described transformer is a dry-type three-phase transformer, comprise base, connecting terminal block, three phase windings are the coil of continous way, iron core and iron core frame, iron core and connecting terminal block all place on the iron core frame, described iron core is formed by stacking the frame structure that has three pillars by silicon steel sheet, coil is wound on three column iron cores, every group of loop construction is identical, include primary winding, secondary coil, corrugated paper, tighten band and insulation gummed paper, described primary winding is to be made of two-layer coil spacing corrugated paper, between primary winding and secondary coil, also be provided with corrugated paper, be provided with the deflation belt on the outer coil of primary winding, the skin that tightens band is the insulation gummed paper; The output of three groups of coils of transformer is connected with connecting terminal block by the circuit breaker on the shell respectively, and connecting terminal block is connected with heavily loaded connector on the shell.
Have bolt hole on the described silicon steel sheet, pass through bolted.Described silicon steel sheet thickness is 0.28mm～0.32mm.The enamelled wire of described coil adopts the copper cash of H class F insulation.Described shell is a body structure, and described casing is provided with heavily loaded connector and handle, has a plurality of louvres in a side of corresponding coil position.
The beneficial effects of the utility model are:
To adopt three phase windings be that the coil of continous way is wrapped on the iron core framework to dry-type three-phase transformer in the utility model, its three taps are connected on the connecting terminal block by circuit breaker respectively, make the power supply of change oar become simple, the interim power supply occasion that can adapt to the multiple voltage grade, the earth leakage circuit breaker of being furnished with also can guarantee workmen's safety; Consider the job site environmental condition, shell is provided with the convenient handle that moves, convenient in carrying.In order to improve efficiency of construction, shell is provided with the heavily loaded connector that is connected with connecting terminal block.
The silicon steel sheet thickness that the utility model iron core is adopted is selected ultra-thin material, effectively reduces eddy current loss, reduces the transformer heating, improves transformer efficiency.On silicon steel sheet, have the hole, pass silicon steel sheet and clamping by bolt.Like this, silicon steel sheet is difficult for loosening, and noise is little.
The coil that the utility model twined adopts continuous winding, and promptly coil inside does not have plumb joint, guarantees the safety and the stability of transformer.During coil paint-dipping, adopt the technology that vacuumizes dipping lacquer, reduce the influence of salt fog and mould, improve the performance and the life-span of transformer transformer.The enamelled wire that coil adopts adopts the copper cash of H class F insulation, and coil temperature can allow to 155 degree+ambient temperatures.
Description of drawings
Fig. 1 is a transformer device structure schematic diagram in the utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Fig. 4 is that the A-A of Fig. 1 analyses and observe enlarged diagram.
Fig. 5 is a shell mechanism schematic diagram in the utility model.
Among the figure: 1. shell, 11. handles, 12. heavily loaded connectors, 13. louvres, 2. transformer, 21. bases, 22. coil, 221. primary windings, 222. secondary coils, 223. corrugated papers, 224. tighten band, 225. the insulation gummed paper, 23. iron cores, 24. iron core framves, 25. connecting terminal blocks, 26. bolts.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
Embodiment 1: as Fig. 1～shown in Figure 3, the utility model comprises shell 1 and the transformer 2 that places in the shell 1, described transformer 2 is a dry-type three-phase transformer, comprise base 21, connecting terminal block 25, the coil 22 of three groups of continous ways, iron core 23 and iron core frame 24, iron core 23 and connecting terminal block 25 all place on the iron core frame 24, described iron core 23 is formed by stacking the frame structure that has three pillars by silicon steel sheet, coil 22 is wound on three column iron cores 23, the coil of described continous way promptly in coil portion do not have plumb joint, every group of coil 22 structures are identical, as shown in Figure 4, include primary winding 221, secondary coil 222, corrugated paper 223, tighten and to be with 224 and insulation gummed paper 225, described primary winding 221 is to be made of two-layer coil spacing corrugated paper 223, also be provided with corrugated paper 223 at primary winding 221 and 222 of secondary coils, be provided with to tighten on the outer coil of primary winding 221 and be with 224 layers, the skin that tightens with 224 is insulation gummed paper 225; The output of three groups of coils 22 of transformer is connected with connecting terminal block 25 by the circuit breaker on the shell 1 respectively, and connecting terminal block 25 is connected with heavily loaded connector 12 on the shell 1.
As shown in Figure 3, have bolt hole on these routine described iron core 23 silicon steel sheets, fastening by bolt 26.Described silicon steel sheet thickness is 0.30mm.
As shown in Figure 5, this routine described shell 1 is a body structure, and described casing is provided with heavily loaded connector 12 and handle 11, and a side of corresponding coil 22 positions has a plurality of louvres 13.
Embodiment 2: this routine overall structure is identical with embodiment 1, and different is: the silicon steel sheet thickness that iron core 23 is adopted in this example is 0.28mm.The enamelled wire of coil described in this example 22 adopts the copper cash of H class F insulation, during described coil 22 dipping lacquers, adopts the technology that vacuumizes dipping lacquer.
Embodiment 3: this routine overall structure is identical with embodiment 1, and different is: the silicon steel sheet thickness that iron core 23 is adopted in this example is 0.32mm.
Embodiment 4: this routine overall structure is identical with embodiment 1, and different is: the silicon steel sheet thickness that iron core 23 is adopted in this example is 0.29mm.
Embodiment 5: this routine overall structure is identical with embodiment 1, and different is: the silicon steel sheet thickness that iron core 23 is adopted in this example is 0.31mm.
Claims (5)
1. change oar power supply box, it is characterized in that: comprise shell and place the interior transformer of shell, connect, described transformer is a dry-type three-phase transformer, comprise base, connecting terminal block, three phase windings are the coil of continous way, iron core and iron core frame, iron core and connecting terminal block all place on the iron core frame, described iron core is formed by stacking the frame structure that has three pillars by silicon steel sheet, coil is wound on three column iron cores, every group of loop construction is identical, include primary winding, secondary coil, corrugated paper, tighten band and insulation gummed paper, described primary winding is to be made of two-layer coil spacing corrugated paper, also be provided with corrugated paper between primary winding and secondary coil, be provided with the deflation belt on the outer coil of primary winding, the skin that tightens band is the insulation gummed paper; The output of three groups of coils of transformer is connected with connecting terminal block by the circuit breaker on the shell respectively, and connecting terminal block is connected with heavily loaded connector on the shell.
2. change oar power supply box according to claim 1 is characterized in that: have bolt hole on the described silicon steel sheet, pass through bolted.
3. change oar power supply box according to claim 1 and 2 is characterized in that: described silicon steel sheet thickness is 0.28mm～0.32mm.
4. change oar power supply box according to claim 1 and 2 is characterized in that: the enamelled wire of described coil adopts the copper cash of H class F insulation.
5. change oar power supply box according to claim 1 is characterized in that: described shell is a body structure, and described casing is provided with heavily loaded connector and handle, has a plurality of louvres in a side of corresponding coil position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202283290U CN201804693U (en) | 2010-06-18 | 2010-06-18 | Variable pitch power box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202283290U CN201804693U (en) | 2010-06-18 | 2010-06-18 | Variable pitch power box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201804693U true CN201804693U (en) | 2011-04-20 |
Family
ID=43874196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202283290U Expired - Fee Related CN201804693U (en) | 2010-06-18 | 2010-06-18 | Variable pitch power box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201804693U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290221A (en) * | 2010-06-18 | 2011-12-21 | 沈阳中科天道新能源装备股份有限公司 | Variable-pitch power supply box |
| CN102313844A (en) * | 2011-07-29 | 2012-01-11 | 牡丹江电业局 | Portable multifunctional test power supply device |
| CN109285677A (en) * | 2018-11-20 | 2019-01-29 | 江苏光辉电力器材有限公司 | A kind of Combined power transformer iron core group |
-
2010
- 2010-06-18 CN CN2010202283290U patent/CN201804693U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290221A (en) * | 2010-06-18 | 2011-12-21 | 沈阳中科天道新能源装备股份有限公司 | Variable-pitch power supply box |
| CN102313844A (en) * | 2011-07-29 | 2012-01-11 | 牡丹江电业局 | Portable multifunctional test power supply device |
| CN109285677A (en) * | 2018-11-20 | 2019-01-29 | 江苏光辉电力器材有限公司 | A kind of Combined power transformer iron core group |
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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: 20130618 |