CN105280354A - Transformer with rectangular section iron core - Google Patents
Transformer with rectangular section iron core Download PDFInfo
- Publication number
- CN105280354A CN105280354A CN201510643809.0A CN201510643809A CN105280354A CN 105280354 A CN105280354 A CN 105280354A CN 201510643809 A CN201510643809 A CN 201510643809A CN 105280354 A CN105280354 A CN 105280354A
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- China
- Prior art keywords
- iron core
- section
- transformer
- silicon steel
- square
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- 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.)
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Abstract
The invention discloses a transformer with a rectangular section iron core. The transformer comprises the iron core (1) and coils; the coils are provided with two or more of windings; the winding connected with the power supply is a primary winding while the rest of the windings are secondary windings; the iron core (1) is formed by laminating a plurality of silicon steel sheets (2) of the same width; and the section of the iron core (1) is rectangular. According to the transformer, the iron core with the rectangular section is formed by the same-level silicon steel sheets of the same size; the silicon steel sheets are the same in the level of the width, so that the feeding and discharging time in cutting the silicon steel sheets is saved, the waste of pre-material is reduced, and the laminating process is simplified, wherein the area of the rectangular section of the iron core is the same as the area of a long circular or circular section of the iron core.
Description
Technical field
The present invention relates to a kind of transformer, specifically the transformer of a kind of square-section iron core, belongs to transformer technology field.
Background technology
In traditional transformer, the structure of iron core as depicted in figs. 1 and 2, as can be seen from the figure, iron core makes approximate circle or ellipsoid cross section by the silicon steel sheet stack that multistage width is different, when silicon steel sheet is sheared, multistage sheet is wide in the blanking of shear line material loading, time-consuming, and all to cut a part material when every one-level is sheared more, cause larger waste.
Summary of the invention
For above-mentioned prior art Problems existing, the invention provides the transformer of a kind of square-section iron core, the time of material loading blanking when can save shearing, save the waste expected, simplify stacking technique.
To achieve these goals, the transformer of a kind of square-section iron core that the present invention adopts, comprise iron core and coil, coil has two or more winding, wherein connect the winding of power supply primary coil, remaining winding, secondary coil, is characterized in that, described iron core is formed by the silicon steel plate packing that several width are identical, and the cross section of iron core is rectangle.
The area of described iron core square-section is identical with area that is oval or circular cross-section iron core.
For reducing eddy current, between the silicon steel sheet in described iron core, be provided with insulation resistance.
In order to reduce core loss, in described iron core, the surface of silicon steel sheet scribbles the thick insulating varnish of 0.3mm.
Compared with prior art, the present invention changes the size of silicon steel sheet, the silicon steel sheet composition square-section at the same level iron core selecting size identical, because only having A-class picture wide, therefore the time of material loading blanking has been saved when shearing, and then saved the waste expected, simplify stacking technique.Wherein, the area of iron core square-section is identical with area that is oval or circular cross-section iron core.
Accompanying drawing explanation
Fig. 1 is the structural representation of iron core in traditional transformer;
Fig. 2 be in Fig. 1 A-A to cutaway view;
Fig. 3 is the schematic diagram of core section of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 3, the transformer of a kind of square-section iron core, comprise iron core 1 and coil, coil has two or more winding, wherein connect the winding of power supply primary coil, remaining winding is secondary coil, and described iron core 1 is folded by the silicon steel sheet 2 that several width are identical and forms, and the cross section of iron core is rectangle.
Preferably, the area of described iron core 1 square-section is identical with area that is oval or circular cross-section iron core.
For reducing eddy current, between the silicon steel sheet 2 in described iron core 1, be provided with the insulation resistance of several ohm to tens ohm.
Consider that silicon steel sheet itself is also electric conductor, under the effect of exchange flux, in iron core, also create induced current, therefore in order to reduce core loss, in described iron core 1, the thick insulating varnish of 0.3mm can be scribbled in the surface of silicon steel sheet 2.
From said structure, the present invention is converted to square-section according to oval or circular cross-section iron core by area, the silicon steel sheet composition square-section at the same level iron core selecting size identical, because only having A-class picture wide, therefore the time of material loading blanking has been saved when shearing, and then saved the waste expected, simplify stacking technique.
Claims (4)
1. the transformer of a square-section iron core, comprise iron core (1) and coil, coil has two or more winding, wherein connect the winding of power supply primary coil, remaining winding is secondary coil, it is characterized in that, described iron core (1) is folded by the silicon steel sheet (2) that several width are identical and forms, and the cross section of iron core (1) is rectangle.
2. the transformer of a kind of square-section according to claim 1 iron core, is characterized in that, the area of described iron core (1) square-section is identical with area that is oval or circular cross-section iron core.
3. the transformer of a kind of square-section according to claim 1 iron core, is characterized in that, is provided with insulation resistance between the silicon steel sheet (2) in described iron core (1).
4. the transformer of a kind of square-section according to claim 1 iron core, is characterized in that, in described iron core (1), the surface of silicon steel sheet (2) scribbles the thick insulating varnish of 0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510643809.0A CN105280354A (en) | 2015-09-30 | 2015-09-30 | Transformer with rectangular section iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510643809.0A CN105280354A (en) | 2015-09-30 | 2015-09-30 | Transformer with rectangular section iron core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105280354A true CN105280354A (en) | 2016-01-27 |
Family
ID=55149209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510643809.0A Pending CN105280354A (en) | 2015-09-30 | 2015-09-30 | Transformer with rectangular section iron core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105280354A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109923626A (en) * | 2016-11-09 | 2019-06-21 | 西门子股份公司 | Core for electrical induction device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02159003A (en) * | 1988-12-13 | 1990-06-19 | Toshiba Corp | Network transformer |
| CN201708012U (en) * | 2010-05-11 | 2011-01-12 | 青岛海电电气有限公司 | Resin-cast rectangular dry-type transformer |
| CN102360762A (en) * | 2011-08-24 | 2012-02-22 | 苏州康开电气有限公司 | Iron core |
| CN202205545U (en) * | 2011-08-24 | 2012-04-25 | 苏州康开电气有限公司 | Transformer |
| EP2688076A2 (en) * | 2012-07-19 | 2014-01-22 | The Boeing Company | Linear electromagnetic device |
-
2015
- 2015-09-30 CN CN201510643809.0A patent/CN105280354A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02159003A (en) * | 1988-12-13 | 1990-06-19 | Toshiba Corp | Network transformer |
| CN201708012U (en) * | 2010-05-11 | 2011-01-12 | 青岛海电电气有限公司 | Resin-cast rectangular dry-type transformer |
| CN102360762A (en) * | 2011-08-24 | 2012-02-22 | 苏州康开电气有限公司 | Iron core |
| CN202205545U (en) * | 2011-08-24 | 2012-04-25 | 苏州康开电气有限公司 | Transformer |
| EP2688076A2 (en) * | 2012-07-19 | 2014-01-22 | The Boeing Company | Linear electromagnetic device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109923626A (en) * | 2016-11-09 | 2019-06-21 | 西门子股份公司 | Core for electrical induction device |
| CN109923626B (en) * | 2016-11-09 | 2021-06-04 | 西门子股份公司 | Core for an electric induction device |
| US11404196B2 (en) | 2016-11-09 | 2022-08-02 | Siemens Energy Global GmbH & Co. KG | Core for an electrical induction device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160127 |
|
| RJ01 | Rejection of invention patent application after publication |