CN201112118Y - Scott connection transformer - Google Patents
Scott connection transformer Download PDFInfo
- Publication number
- CN201112118Y CN201112118Y CNU2007201719760U CN200720171976U CN201112118Y CN 201112118 Y CN201112118 Y CN 201112118Y CN U2007201719760 U CNU2007201719760 U CN U2007201719760U CN 200720171976 U CN200720171976 U CN 200720171976U CN 201112118 Y CN201112118 Y CN 201112118Y
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- winding
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- transformer
- magnetic circuit
- transformers
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Abstract
The utility model discloses a scott connection transformer which comprises two transformers; a primary coil of one transformer is connected with an intermediate tap of the primary coil of the other transformer. The scott connection transformer is characterized in that a plurality of windings forming the two transformers wind around the same group of magnetic materials; the magnetic materials consists of a plurality of magnetic cores, and a plurality of magnetic circuits are formed by the magnetic cores. The scott connection transformer replaces the two existing independent magnetic cores with a plurality of small magnetic cores, thus reducing volume of the transformer and weight thereof, therefore, materials are saved, and production cost is reduced. Furthermore, leakage inductance of a transformer with one magnetic system is smaller than that of the transformer with two magnetic systems, therefore, loss of the scott connection transformer is reduced, and efficiency thereof is improved by nearly 20 percent.
Description
Technical field
The utility model relates to field transformer, relates in particular to a kind of Scott transformer.
Background technology
The Scott transformer normally is made up of two single-phase transformers.The end of a transformer high-voltage winding is connected in the central authorities of another high pressure winding, just can forms the three-phase high-voltage winding of " T " shape knot.Each low pressure winding all is simple single-phase windings, does not have the contact of electricity between them.Their voltage and current is identical with common single-phase transformer.But each high pressure group winding is different with common single-phase transformer with electric current.
Because existing two separate cores of Scott transformer adopting are all very big on volume and weight, and the leakage inductance of the transformer of two independent magnet systems is bigger, make the loss of existing Scott transformer bigger.
The utility model content
Technical problem to be solved in the utility model is, a kind of Scott transformer is provided.The volume of this transformer is little, in light weight, cost is low, and the loss of leakage inductance is less.
In order to solve the problems of the technologies described above, embodiment of the present utility model provides a kind of Scott transformer, comprise: two transformers, the primary coil of a transformer is connected with the centre tap of the primary coil of another transformer, and the many groups winding technique that constitutes described two transformers is on same group of magnetic material; Described one group of magnetic material is made up of a plurality of magnetic cores; Described a plurality of magnetic core forms a plurality of magnetic circuits.
The beneficial effect of embodiment of the present utility model: owing to, become a plurality of little magnetic cores, reduced the volume of transformer, alleviated weight, thereby saved material, reduced production cost with existing two separate cores.Also, aspect efficient, improve nearly 20% because the leakage inductance of a magnetic systems transformer less than the leakage inductance of the transformer of two independent magnet systems, has reduced the loss of Scott transformer.
Description of drawings
Fig. 1 is the circuit theory diagrams of Scott transformer of the present utility model;
Fig. 2 is the structural representation of an embodiment of Scott transformer of the present utility model;
Fig. 3 is the structural representation of another embodiment of Scott transformer of the present utility model.
Embodiment
Below with reference to accompanying drawing preferred embodiment of the present utility model is described.In the accompanying drawing of institute's reference, same or analogous parts use identical drawing reference numeral to represent among the different figure.
Referring to Fig. 1, be the circuit theory diagrams of Scott transformer of the present utility model.The Scott transformer has two transformers, and one is α seat transformer, and another is a β seat transformer; The primary coil of α seat transformer is connected with the centre tap 1 of the primary coil of 3 transformers, and the secondary coil of α seat transformer is connected with the secondary coil of 3 transformers, shift capacitor of the parallel connection of secondary windings of β seat transformer.Thereby realize that the Scott transformer transfers three-phase electricity to individual event.
Referring to Fig. 2, be the structural representation of an embodiment of Scott transformer of the present utility model.As shown in Figure 2, the Scott transformer of present embodiment comprises 5 magnetic circuits (magnetic circuit 1, magnetic circuit 2, magnetic circuit 3, magnetic circuit 4 and magnetic circuit 5) that 5 magnetic cores form; And be wound on three groups of winding L 1, L2 and L2 ' on described 5 magnetic circuits, wherein winding L 1 continuously successively or intert and be wound on magnetic circuit 1, magnetic circuit 2, magnetic circuit 3, magnetic circuit 4 and the magnetic circuit 5 of described 5 magnetic circuits, every circle winding of winding L 1 is single magnetic circuit winding; Winding L 2 is wound on magnetic circuit 1 and the magnetic circuit 2 simultaneously, and every circle winding of winding L 2 is the double magnetic circuit winding; Winding L 2 ' is wound on magnetic circuit 4 and the magnetic circuit 5 simultaneously, and every circle winding of winding L 2 ' is the double magnetic circuit winding.Wherein winding L 2 ' and L2 series connection, and the induction magnetic flux of winding L 2 ' is opposite with the induction magnetic flux that winding L 1 produces on described winding L 2.Therefore, winding L 2 ' has formed the compensation winding between L1 and L2.In the specific implementation, winding L 2 ' also can be connected with winding L 1, and when connecting with L1, the induced magnetism of winding L 2 ' is colluded sample need be opposite with the induction magnetic flux that winding L 1 produces on described winding L 2.Winding L 1, L2 and L2 ' can comprise an elementary winding and at least one secondary winding; In the equivalent winding that winding L 1, L2 and L2 ' can make for coil windings, planar conductor winding or printed circuit board (PCB) any one, the perhaps combination of described each winding.Wherein, described coil windings is wrapped on the magnetic core on vertical magnetic circuit direction by lead, and lead can be single, perhaps many coilings side by side, and the material of employing can be various conductor wires such as copper, aluminium, also can adopt various conductive foil band coilings such as Copper Foil, aluminium foil; Described planar conductor winding forms by the thin type conductor material is folding; When the equivalent winding that adopts printed circuit board (PCB) to make, the printed circuit board (PCB) that is used for making equivalent winding can be one or more layers.In addition, the magnetic core of present embodiment can be the magnetic core of U-shaped magnetic core, CD iron core, circular stem stem magnetic core or band newel.
In the present embodiment, because winding L 1 all has winding on each magnetic circuit of described multiple magnetic circuit transformer, and winding L 2 only has winding on magnetic circuit 1 and magnetic circuit 2, then can produce mutual inductance between winding L 1 and L2, therefore, present embodiment series compensation winding L 2 ' on winding L 2 is offset the mutual inductance that L1 produces on L2, finally satisfy between the winding of winding L 1 and L2 series connection behind the L2 ' not have mutual inductance.Then L1 can independently form a transformer, L2 can independently form a transformer together with L2 '.Final two transformers that form form a complete Scott transformer according to the circuit connecting mode of Fig. 1.
Referring to Fig. 3, be the structural representation of another embodiment of Scott transformer of the present utility model.As shown in Figure 3, the Scott transformer of present embodiment comprises 5 magnetic circuits (magnetic circuit 1, magnetic circuit 2, magnetic circuit 3, magnetic circuit 4 and magnetic circuit 5) that 5 magnetic cores form; And be wound on three groups of winding L 1, L2 and L2 ' on described 5 magnetic circuits, wherein winding L 1 continuously successively or intert and be wound on magnetic circuit 1, magnetic circuit 2, magnetic circuit 3 and the magnetic circuit 4 and magnetic circuit 5 of described 5 magnetic circuits, every circle winding of winding L 1 is single magnetic circuit winding; Winding L 2 is wound on magnetic circuit 1, magnetic circuit 2 and the magnetic circuit 3 simultaneously, and every circle winding of winding L 2 is three magnetic circuit windings; Winding L 2 ' is wound on the magnetic circuit 3, and every circle winding of winding L 2 ' is the double magnetic circuit winding.Wherein winding L 2 ' and L2 series connection, and the induction magnetic flux of winding L 2 ' is opposite with the induction magnetic flux that winding L 1 produces on described winding L 2.Therefore, winding L 2 ' has formed the compensation winding between L1 and L2.In the specific implementation, winding L 2 ' also can be connected with winding L 1, and when connecting with L1, the induced magnetism of winding L 2 ' is colluded sample need be opposite with the induction magnetic flux that winding L 1 produces on described winding L 2.Winding L 1, L2 and L2 ' can comprise an elementary winding and at least one secondary winding; In the equivalent winding that winding L 1, L2 and L2 ' can make for coil windings, planar conductor winding or printed circuit board (PCB) any one, the perhaps combination of described each winding.Wherein, described coil windings is wrapped on the magnetic core on vertical magnetic circuit direction by lead, and lead can be single, perhaps many coilings side by side, and the material of employing can be various conductor wires such as copper, aluminium, also can adopt various conductive foil band coilings such as Copper Foil, aluminium foil; Described planar conductor winding forms by the thin type conductor material is folding; When the equivalent winding that adopts printed circuit board (PCB) to make, the printed circuit board (PCB) that is used for making equivalent winding can be one or more layers.In addition, the magnetic core of present embodiment can be the magnetic core of U-shaped magnetic core, CD iron core, circular stem stem magnetic core or band newel.
In the present embodiment, because winding L 1 all has winding on each magnetic circuit of described multiple magnetic circuit transformer, and winding L 2 only has winding on magnetic circuit 1, magnetic circuit 2 and magnetic circuit 3, then can produce mutual inductance between winding L 1 and L2, therefore, present embodiment series compensation winding L 2 ' on winding L 2 is offset the mutual inductance that L1 produces on L2, finally satisfy between the winding of winding L 1 and L2 series connection behind the L2 ' not have mutual inductance.Then L1 can independently form a transformer, L2 can independently form a transformer together with L2 '.Final two transformers that form form a complete Scott transformer according to the circuit connecting mode of Fig. 1.
The utility model embodiment has reduced the volume of transformer owing to existing two separate cores, become a plurality of little magnetic cores, has alleviated weight, thereby has saved material, has reduced production cost.Also, aspect efficient, improve nearly 20% because the leakage inductance of a magnetic systems transformer less than the leakage inductance of the transformer of two independent magnet systems, has reduced the loss of Scott transformer.
The above is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also are considered as protection scope of the present invention.
Claims (9)
1, a kind of Scott transformer comprises two transformers, and the primary coil of a transformer is connected with the centre tap of the primary coil of another transformer, it is characterized in that, the many groups winding technique that constitutes described two transformers is on same group of magnetic material; Described magnetic material is made up of a plurality of magnetic cores; Described a plurality of magnetic core forms a plurality of magnetic circuits.
2, Scott transformer as claimed in claim 1 is characterized in that, many groups winding of described two transformers of described formation comprises first winding and second winding;
Described first winding continuously successively or intert and be wound on the single magnetic circuit of described a plurality of magnetic circuits;
Described second winding is wound on the even number magnetic circuit of described a plurality of magnetic circuits simultaneously, and described even number magnetic circuit comprises the magnetic circuit that the side column of described a plurality of magnetic cores forms, be in series with the compensation winding on any one group in described second winding and described first winding, described compensation winding is used for described first winding and described second winding are carried out decoupling zero.
3, Scott transformer as claimed in claim 1 is characterized in that, many groups winding of described two transformers of described formation comprises first winding and second winding;
Described first winding continuously successively or intert and be wound on the single magnetic circuit of described a plurality of magnetic circuits;
Described second winding is wound on the even number magnetic circuit of described a plurality of magnetic circuits simultaneously, and described even number magnetic circuit does not comprise the magnetic circuit that the side column of described a plurality of magnetic cores forms.
4, Scott transformer as claimed in claim 1 is characterized in that, many groups winding of described two transformers of described formation comprises first winding and second winding;
Described first winding continuously successively or intert and be wound on the single magnetic circuit of described a plurality of magnetic circuits;
Described second winding is wound on the odd number magnetic circuit of described a plurality of magnetic circuits simultaneously, is in series with the compensation winding on any one group in described second winding and described first winding, and described compensation winding is used for described first winding and described second winding are carried out decoupling zero.
As claim 2 or 4 described multiple magnetic circuit transformers, it is characterized in that 5, described compensation winding technique is on the single magnetic circuit or be wound on simultaneously on a plurality of magnetic circuits.
As claim 2 or 4 described multiple magnetic circuit transformers, it is characterized in that 6, when described compensation winding and described second windings in series, the induction magnetic flux of described compensation winding is opposite with the induction magnetic flux that described first winding produces on described second winding;
When described compensation winding and described first windings in series, the induction magnetic flux of described compensation winding is opposite at the induction magnetic flux that second winding produces with described first winding.
7, Scott transformer as claimed in claim 1 is characterized in that, described magnetic core is the silicon steel sheet magnetic core of U-shaped magnetic core, CD iron core, circular stem stem magnetic core or band newel.
8, Scott transformer as claimed in claim 1 is characterized in that, many groups winding of suffered two transformers of described formation is one of them or its combination in any of the equivalent winding three that makes of coil windings, planar conductor winding or printed circuit board (PCB).
9, Scott transformer as claimed in claim 1 is characterized in that, every group of winding of many groups winding of suffered two transformers of described formation comprises an elementary winding and at least one secondary winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201719760U CN201112118Y (en) | 2007-09-29 | 2007-09-29 | Scott connection transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201719760U CN201112118Y (en) | 2007-09-29 | 2007-09-29 | Scott connection transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201112118Y true CN201112118Y (en) | 2008-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201719760U Expired - Fee Related CN201112118Y (en) | 2007-09-29 | 2007-09-29 | Scott connection transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201112118Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881436A (en) * | 2012-09-27 | 2013-01-16 | 宜兴市兴益特种变压器有限公司 | Scott transformer |
| CN103050262A (en) * | 2012-12-25 | 2013-04-17 | 保定天威集团(江苏)五洲变压器有限公司 | Three-phase to single-phase transformer |
-
2007
- 2007-09-29 CN CNU2007201719760U patent/CN201112118Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881436A (en) * | 2012-09-27 | 2013-01-16 | 宜兴市兴益特种变压器有限公司 | Scott transformer |
| CN103050262A (en) * | 2012-12-25 | 2013-04-17 | 保定天威集团(江苏)五洲变压器有限公司 | Three-phase to single-phase transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090109 Address after: Guangzhou city Tianhe District Ascot Road No. sixty-two imperial court block D Room 301, zip code: 510620 Patentee after: Wang Fengjin Address before: Guangdong city of Shenzhen province Buji Langfang Li Xin Road No. 10 Chashan industrial zone two floor, zip code: 518112 Patentee before: Shenzhen Putly Optic-electronic Technology Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: WANG FENGJIN Free format text: FORMER OWNER: SHENZHEN P-TRANS PHOTOELECTRIC TECHNOLOGY CO., LTD. Effective date: 20090109 |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHONGSHAN PROFESSIONAL POWER SUPPLY EQUIPMENT TECH Free format text: FORMER OWNER: WANG FENGJIN Effective date: 20120419 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 510620 GUANGZHOU, GUANGDONG PROVINCE TO: 528400 ZHONGSHAN, GUANGDONG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20120419 Address after: 528400, A District, building 70, building A, fifth Zhongshan Avenue, Torch Development Zone, Guangdong, Zhongshan Patentee after: Zhongshan Purunsi Power Supply Equipment Technology Co., Ltd. Address before: 510620 Guangzhou city Tianhe District Ascot Road No. sixty-two Chun Xuan 301 D room Patentee before: Wang Fengjin |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080910 Termination date: 20130929 |