CN202905397U - Three-phase miniature transformer - Google Patents
Three-phase miniature transformer Download PDFInfo
- Publication number
- CN202905397U CN202905397U CN 201220614762 CN201220614762U CN202905397U CN 202905397 U CN202905397 U CN 202905397U CN 201220614762 CN201220614762 CN 201220614762 CN 201220614762 U CN201220614762 U CN 201220614762U CN 202905397 U CN202905397 U CN 202905397U
- Authority
- CN
- China
- Prior art keywords
- phase
- winding
- phase windings
- miniature transformer
- windings
- 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
Links
Images
Landscapes
- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model discloses a three-phase miniature transformer. The three-phase miniature transformer comprises a primary winding, a secondary winding and iron cores. The primary winding comprises three phase windings which are in star-type connection or independent. Each phase line in the three phase windings is connected with a neutral line through a winding. When the central lines of the three phase windings are not connected together, the three phase winding are independent to one another. When the central lines of the three phase windings are connected together, the three phase windings form star-shaped connection. The secondary winding comprises three phase windings which are in star-type connection or independent, and connecting mode of output lines of the secondary winding is the same as that of the primary winding. The three-phase miniature transformer is small in size, simple in structure, capable of not only realizing multiple-phase voltage output, but also realizing single-phase voltage output, and convenient to use.
Description
Technical field
The utility model relates to a kind of transformer, relates in particular to a kind of three-phase miniature transformer.
Background technology
Large-scale three-phase transformer is widely used in the alternating current steady voltage plug of electronic computer, precision machine tool, computer body-layer scanning photograph, precision instrument, experimental provision, elevator, import equipment and the production line of the departments such as industrial and mining enterprises, post and telecommunications, weaving, railway, construction site, school, hospital, hotel, national defence, scientific research, also is applicable to the low-voltage distribution that supply voltage is low, fluctuating range is large simultaneously.But traditional three-phase transformer volume is very large, can not use on some miniature PCB wiring boards.And traditional buck transformer only has single-phase, when a plurality of voltage requirements is arranged, needs several independently single-phase transformers.
The utility model content
For above-mentioned technical problem, the purpose of this utility model is to provide a kind of three-phase miniature transformer, its armature winding adopt star-like or independent connection simple in structure, be convenient to terminal block, secondary winding equally also can be realized the single-phase independently-powered or star-like power supply of three-phase, and volume is little, and is practical and convenient.
For reaching this purpose, the utility model by the following technical solutions:
A kind of three-phase miniature transformer, it comprises armature winding, secondary winding and iron core; Described armature winding is Y-connection or three phase windings independently, each phase line is connected with the neutral line through winding in this three phase winding, when the neutral line of described three phase windings does not link together, three phase windings are separate, when the neutral line of described three phase windings linked together, three phase windings consisted of star-like connection; Described secondary winding is Y-connection or three phase windings independently, and the connected mode of its output line is identical with armature winding.
Especially, described iron core assembly adopts cold-reduced silicon sheet.
In the utility model armature winding adopt star-like or independent connection simple in structure, be convenient to terminal block, secondary winding equally also can be realized the single-phase independently-powered or star-like power supply of three-phase, and volume is little, and is practical and convenient.
Description of drawings
Fig. 1 is the three-phase miniature transformer cut-away view that the utility model embodiment one provides;
Fig. 2 is the three-phase miniature transformer cut-away view that the utility model embodiment two provides;
Fig. 3 is the three-phase miniature transformer overall structure figure that the utility model embodiment provides;
Fig. 4 is the structure chart of the three-phase miniature transformer core that provides of the utility model embodiment;
Fig. 5 is the structure chart of the three-phase miniature transformer integrated coil that provides of the utility model embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, the utility model is described in further detail below in conjunction with drawings and Examples.
Please refer to shown in Figure 1ly, Fig. 1 is the three-phase miniature transformer cut-away view that the utility model embodiment one provides.The three-phase miniature transformer comprises primary of high voltage winding, low-voltage secondary winding and iron core in the present embodiment.Described primary of high voltage winding is three phase windings independently, and each phase line is connected with the neutral line through winding in this three phase winding, and the neutral line of described three phase windings does not link together, and three phase windings are separate.Three phase windings of described primary of high voltage winding are respectively: G1 phase winding, G2 phase winding, G3 phase winding, described G1 phase winding, G2 phase winding, G3 phase winding all are that phase line independently links to each other with the neutral line.Described low-voltage secondary winding is three phase windings independently, and it is respectively: D1 phase winding, D2 phase winding, D3 phase winding, the connected mode of its output line is identical with the primary of high voltage winding.Described low-voltage secondary winding is recently finished high voltage to the step-down conversion of low-voltage by the number of turn of primary of high voltage coil and low-voltage secondary coil.
As shown in Figure 2, when three road neutral lines of the G1 of primary of high voltage winding phase winding, G2 phase winding, G3 phase winding link together, namely realized the star-like connection of G1 phase winding, G2 phase winding and G3 phase winding; When the low-voltage secondary winding is the same with the primary of high voltage winding, when three road neutral lines of D1 phase winding, D2 phase winding, D3 phase winding are linked together, namely realized the star-like connection of D1 phase winding, D2 phase winding and D3 phase winding.
In actual applications, as shown in Figure 3, Fig. 3 is the three-phase miniature transformer overall structure figure that the utility model embodiment provides.301 is the iron core of three-phase miniature transformer among the figure, and 302 is the integrated coil of three-phase miniature transformer, and integrated coil 302 has consisted of primary of high voltage winding and the low-voltage secondary winding of three-phase miniature transformer.The concrete structure figure of the iron core 301 of three-phase miniature transformer as shown in Figure 4, the concrete structure figure of the integrated coil 302 of three-phase miniature transformer is as shown in Figure 5.
Need to prove, iron core assembly described in the present embodiment adopts cold-reduced silicon sheet, can reduce like this coercive force, core loss (iron loss) and magnetic aging.
In the technical solution of the utility model armature winding adopt star-like or independent connection simple in structure, be convenient to terminal block, secondary winding equally also can be realized the single-phase independently-powered or star-like power supply of three-phase, and volume is little, and is simple in structure, practical and convenient.
Above-mentioned only is preferred embodiment of the present utility model and institute's application technology principle; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed in the protection range of the present utility model.
Claims (2)
1. a three-phase miniature transformer is characterized in that, comprises armature winding, secondary winding and iron core; Described armature winding is Y-connection or three phase windings independently, each phase line is connected with the neutral line through winding in this three phase winding, when the neutral line of described three phase windings does not link together, three phase windings are separate, when the neutral line of described three phase windings linked together, three phase windings consisted of star-like connection; Described secondary winding is Y-connection or three phase windings independently, and the connected mode of its output line is identical with armature winding.
2. three-phase transformer according to claim 1 is characterized in that, described iron core assembly adopts cold-reduced silicon sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220614762 CN202905397U (en) | 2012-11-19 | 2012-11-19 | Three-phase miniature transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220614762 CN202905397U (en) | 2012-11-19 | 2012-11-19 | Three-phase miniature transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202905397U true CN202905397U (en) | 2013-04-24 |
Family
ID=48126035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220614762 Expired - Fee Related CN202905397U (en) | 2012-11-19 | 2012-11-19 | Three-phase miniature transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202905397U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330610A (en) * | 2014-11-22 | 2015-02-04 | 永济新时速电机电器有限责任公司 | Novel voltage detecting device for motor train unit |
-
2012
- 2012-11-19 CN CN 201220614762 patent/CN202905397U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330610A (en) * | 2014-11-22 | 2015-02-04 | 永济新时速电机电器有限责任公司 | Novel voltage detecting device for motor train unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202678061U (en) | Photovoltaic wind electricity duplex winding split dry-type transformer | |
| CN206497818U (en) | Novel magnetic control reactor | |
| CN204993053U (en) | Isolation power of multiplexed output | |
| CN202905397U (en) | Three-phase miniature transformer | |
| CN202997949U (en) | Twenty-four pulse wave rectification transformer | |
| CN203530449U (en) | Bridge-type stand-alone voltage-adjusting rectifying transformer | |
| CN202652075U (en) | Multiphase transformer | |
| CN2645196Y (en) | Iron core current-limiting reactor | |
| CN103295744A (en) | Self-saturating reactor for rectifier transformer | |
| CN207116212U (en) | A kind of current transformer of polytropic ratio | |
| CN202178141U (en) | Lead structure of Vv couple traction transformer | |
| CN109741924B (en) | Traction transformer | |
| CN201674411U (en) | Deflector with full-bridge three-level control | |
| CN101354955A (en) | Single-phase traction transformer for AT power supply mode high speed electrified railroad | |
| CN204834240U (en) | There is not public indisputable yoke magnetism integrated reactor | |
| CN103000349A (en) | Three-phase miniature transformer | |
| WO2006126868A1 (en) | Prism-type electrical converter for the generation, transmission, distribution and supply of electric current, and production method thereof | |
| CN207909673U (en) | A kind of transformer changing from three phases to single phase | |
| CN209343913U (en) | A kind of symmetrical integrated magnetics of magnetic yoke closo multiphase | |
| CN201562576U (en) | multi-phase transformer | |
| CN209297901U (en) | A kind of tractive transformer | |
| CN202601372U (en) | Magnetic leakage transformer | |
| CN201113810Y (en) | Self-coupling phase-shift double three phase power commutating power supply | |
| CN204390874U (en) | A kind of Split type transformer skeleton and transformer thereof | |
| CN204441077U (en) | A kind of winding construction adopting single magnetic core to realize multiple independent magnetic cell |
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: 20130424 Termination date: 20151119 |
|
| EXPY | Termination of patent right or utility model |