CN204668098U - A kind of dry type Wound core reactor of low electro permanent magnetic noise - Google Patents
A kind of dry type Wound core reactor of low electro permanent magnetic noise Download PDFInfo
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- CN204668098U CN204668098U CN201520317022.0U CN201520317022U CN204668098U CN 204668098 U CN204668098 U CN 204668098U CN 201520317022 U CN201520317022 U CN 201520317022U CN 204668098 U CN204668098 U CN 204668098U
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- iron core
- alloy sheet
- permanent magnetic
- dry type
- reactor
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Abstract
The utility model relates to a kind of reactor, specifically a kind of dry type Wound core reactor of low electro permanent magnetic noise, comprise iron core, it is characterized in that, described iron core comprises and is wound into circulus by silicon strip and non-retentive alloy sheet, wherein silicon strip is in the outermost of non-retentive alloy sheet, and described circulus interlayer is fixed, and iron core is provided with one or more air gap; Be coated with insulating barrier at the tow sides of described non-retentive alloy sheet, described thickness of insulating layer is 50-200 μm.Compared with prior art, the utility model can reduce contingent mechanical shock and air pertormance vibrations, non-retentive alloy sheet coating insulating barrier can non-retentive alloy sheet surface formed tension force, reduce iron mandrel to electric power, reduce magnetostriction, greatly reduce the noise of reactor.
Description
Technical field
The utility model relates to a kind of reactor, specifically a kind of dry type Wound core reactor of low electro permanent magnetic noise.
Background technology
Reactor is one of visual plant in petrochemical industry electric power system, its play in petrochemical industry electric power system compensate spuious capacity current, shove, limiting short-circuit current, filtering, flat ripple, startup, lightning protection, the effect such as wave arrestment.According to the structural shape of reactor, reactor can be divided into air core reactor, iron-core reactor and half core device.Wherein, iron core reactor is divided into again reactor with T-shaped core and oil immersed type iron core reactor, and the iron core of iron core reactor comprises the stem stem of a band air gap, and the outer surface cover winding of stem stem, stem stem is made up of stacked multiple silicon steel sheets, has air gap between silicon steel sheet.
The noise of reactor with T-shaped core is mainly derived from stem stem vibrations, and stem stem vibrations principal element is mechanical shock, air pertormance vibrations and electro permanent magnetic vibrations.Wherein, electro permanent magnetic vibrations be the silicon steel sheet of iron core under the effect of alternating magnetic field, there is magnetostriction, make iron core do periodic vibration with the change of excitation frequency, thus produce noise.
In prior art, the Main Means reducing dry type Wound core reactor is supporting construction and this body structure of stem stem of changing stem stem, reduces mechanical shock and air pertormance vibrations, reaches the effect reducing noise.
Summary of the invention
The utility model provides a kind of dry type Wound core reactor of low electro permanent magnetic noise, its adopt silicon strip and non-retentive alloy sheet Combined roll around core structure, greatly reduce the electro permanent magnetic noise of reactor.
The technical scheme that the utility model specifically adopts is:
A kind of dry type Wound core reactor of low electro permanent magnetic noise, comprise iron core, it is characterized in that, described iron core comprises the circulus be wound into by silicon strip and non-retentive alloy sheet, wherein silicon strip is in the outermost of non-retentive alloy sheet, described circulus interlayer is fixed, and iron core is provided with one or more air gap; Be coated with insulating barrier at the tow sides of described non-retentive alloy sheet, described thickness of insulating layer is 50-200 μm.
Wherein, insulating barrier can select insulating resin or insulating properties epoxy resin.
In the utility model, non-retentive alloy sheet is strip metal, and its thickness is 0.05 ~ 0.1mm, and it commercially easily obtains, such as, select marque to be that the alloy sheet of Metglas2605SC or the U.S. produce Fe-Si-B alloy sheet.
Preferably, described iron core horizontal cross-section is polygon trapezium structure, and its minor face is outside, and the angle of two hypotenuses is 120 °; Tri-phase iron core hypotenuse is bonded to each other, and middle formation stem stem, is provided with winding outside iron core.
The utility model circulus preferably adopts riveted joint or the mode of tying up to carry out interlayer and fixes, and wherein, when adopting the mode of tying up to fix, interlayer is provided with elastic insert, and the described elastic insert magnitude of interference is 2 ~ 3mm.
Described air gap quantity is one or more, and air gap is arranged in winding vertical direction, and the size of air gap, quantity are determined by inductance value design, can formulae discovery conventionally, and air gap can even or uneven arrangement on two stem stems.Air gap adopts the material of prior art, the epoxy material such as insulated.
Compared with prior art, the utility model has the advantages that:
1) the utility model iron core non-retentive alloy sheet hardness is large, skin is silicon strip, can ensure some strength, reduces contingent mechanical shock and air pertormance vibrations, through applicant's verification experimental verification, reduce than the iron core amplitude of prior art and reach as high as 92.5%;
2) the utility model non-retentive alloy sheet coating insulating barrier can non-retentive alloy sheet surface formed tension force, reduce iron mandrel to electric power, reduce magnetostriction, greatly reduce the noise of reactor.
3) thickness of insulating layer is moderate, neither affects heat radiation, effectively can reduce noise again.
Accompanying drawing explanation
Fig. 1 is the structural representation of a phase iron core;
Fig. 2 is that the A of Fig. 1 is to zoomed-in view;
Fig. 3 is non-retentive alloy chip architecture schematic diagram.
Embodiment
As shown in Figure 1, iron core 1 comprises the circulus be wound into by silicon strip 2 and non-retentive alloy sheet 5, and interlayer riveted joint 3 is fixed, and iron core 1 is arranged with six air gaps 4, filling epoxy resin insulation in air gap 4.
As shown in Figure 2, iron core 1 horizontal cross-section is polygon trapezium structure, and its minor face is outside, and the angle of two hypotenuses is 120 °.
As shown in Figure 3, the tow sides of non-retentive alloy sheet 5 are coated with insulating barrier 6, and described insulating barrier 6 thickness is 50-200 μm.
Claims (6)
1. the dry type Wound core reactor of one kind low electro permanent magnetic noise, comprise iron core, it is characterized in that, described iron core comprises and is wound into circulus by silicon strip and non-retentive alloy sheet, wherein silicon strip is in the outermost of non-retentive alloy sheet, described circulus interlayer is fixed, and iron core is provided with one or more air gap; Be coated with insulating barrier at the tow sides of described non-retentive alloy sheet, described thickness of insulating layer is 50-200 μm.
2. the dry type Wound core reactor of low electro permanent magnetic noise according to claim 1, is characterized in that, non-retentive alloy sheet is strip metal, and its thickness is 0.05 ~ 0.1mm.
3. the dry type Wound core reactor of low electro permanent magnetic noise according to claim 1, is characterized in that, described iron core horizontal cross-section is polygon trapezium structure, and its minor face is outside, and the angle of two hypotenuses is 120 °; Tri-phase iron core hypotenuse is bonded to each other, and middle formation stem stem, is provided with winding outside iron core.
4. the dry type Wound core reactor of low electro permanent magnetic noise according to claim 1, is characterized in that, described circulus adopts riveted joint or the mode of tying up to carry out interlayer and fixes.
5. the dry type Wound core reactor of low electro permanent magnetic noise according to claim 4, is characterized in that, described circulus adopts the mode of tying up to fix, and interlayer is provided with elastic insert, and the described elastic insert magnitude of interference is 2 ~ 3mm.
6. the dry type Wound core reactor of low electro permanent magnetic noise according to claim 1, is characterized in that, described air gap is arranged in winding vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520317022.0U CN204668098U (en) | 2015-05-15 | 2015-05-15 | A kind of dry type Wound core reactor of low electro permanent magnetic noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520317022.0U CN204668098U (en) | 2015-05-15 | 2015-05-15 | A kind of dry type Wound core reactor of low electro permanent magnetic noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204668098U true CN204668098U (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520317022.0U Expired - Fee Related CN204668098U (en) | 2015-05-15 | 2015-05-15 | A kind of dry type Wound core reactor of low electro permanent magnetic noise |
Country Status (1)
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| CN (1) | CN204668098U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355385A (en) * | 2015-11-06 | 2016-02-24 | 国网山东省电力公司淄博供电公司 | Low-electromagnetic-noise iron core reactor |
| CN107437448A (en) * | 2016-05-28 | 2017-12-05 | 深圳市京泉华科技股份有限公司 | Core structure, calutron and the method for preparing calutron |
| CN112119472A (en) * | 2019-08-22 | 2020-12-22 | 深圳市大疆创新科技有限公司 | Iron core, electronic device and electronic apparatus |
| CN114188134A (en) * | 2021-11-16 | 2022-03-15 | 国网浙江省电力有限公司金华供电公司 | Noise reduction structure for reducing noise at corner of iron core and power transformer |
-
2015
- 2015-05-15 CN CN201520317022.0U patent/CN204668098U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355385A (en) * | 2015-11-06 | 2016-02-24 | 国网山东省电力公司淄博供电公司 | Low-electromagnetic-noise iron core reactor |
| CN107437448A (en) * | 2016-05-28 | 2017-12-05 | 深圳市京泉华科技股份有限公司 | Core structure, calutron and the method for preparing calutron |
| CN107437448B (en) * | 2016-05-28 | 2019-11-19 | 深圳市京泉华科技股份有限公司 | Core structure, calutron and the method for preparing calutron |
| CN112119472A (en) * | 2019-08-22 | 2020-12-22 | 深圳市大疆创新科技有限公司 | Iron core, electronic device and electronic apparatus |
| WO2021031191A1 (en) * | 2019-08-22 | 2021-02-25 | 深圳市大疆创新科技有限公司 | Iron core, electronic device, and electronic apparatus |
| CN114188134A (en) * | 2021-11-16 | 2022-03-15 | 国网浙江省电力有限公司金华供电公司 | Noise reduction structure for reducing noise at corner of iron core and power transformer |
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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 |
Granted publication date: 20150923 Termination date: 20160515 |
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| CF01 | Termination of patent right due to non-payment of annual fee |