CN203931749U - Iron core, iron core group, core-type reactor and intermediate frequency power supply equipment - Google Patents
Iron core, iron core group, core-type reactor and intermediate frequency power supply equipment Download PDFInfo
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- CN203931749U CN203931749U CN201420289243.7U CN201420289243U CN203931749U CN 203931749 U CN203931749 U CN 203931749U CN 201420289243 U CN201420289243 U CN 201420289243U CN 203931749 U CN203931749 U CN 203931749U
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- iron core
- silicon steel
- steel sheet
- central shaft
- type reactor
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 98
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 230000035699 permeability Effects 0.000 abstract description 12
- 238000005457 optimization Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model provides a kind of iron core, iron core group, core-type reactor and intermediate frequency power supply equipment, wherein, this iron core includes: the first silicon steel sheet of some rectangles and a coating film, those first silicon steel sheets become radial around a central shaft and equidistantly, evenly arrange, this coating film is around coated those first silicon steel sheets of this central shaft, this iron core is greater than 95% perpendicular to the ratio of the area of the cross section of this central shaft and the area of a circle, and this radius of a circle equals arbitrary the first silicon steel sheet and away from a side of this central shaft, arrives the distance of this central shaft.Iron core of the present utility model is by by some the first silicon steel sheets, the structure with radial arrangement has greatly improved permeability, has reduced magnetic loss, reduced caloric value; Iron core group is by having realized by described iron core is combined the object that reduces operating noise, is easy to startup; Core-type reactor and intermediate frequency power supply equipment make performance obtain optimization because having possessed described iron core or iron core group.
Description
Technical field
The utility model relates to a kind of iron core, iron core group, core-type reactor and intermediate frequency power supply equipment.
Background technology
Centreless intermediate frequency furnace is often used core-type reactor, and iron core has played vital effect in core-type reactor, and the size of iron core magnetic conduction ability has directly affected whole core-type reactor.Existing core structure as depicted in figs. 1 and 2, this iron core 1 is to suppress by silicon steel sheet 11 stacks of some rectangles the integral body forming, in those silicon steel sheets 11, be positioned at the width maximum of the silicon steel sheet in centre position, the width that is positioned at the silicon steel sheet 11 on both sides reduces successively, the outline of this iron core 1 is similar to one cylindrical, the two ends of this iron core 1 are respectively equipped with an insulating pad 12.The permeability of iron core of finding in actual use said structure is low, and leakage field is larger, and magnetic loss is larger, easily there is magnetic saturation phenomenon, so that heating damages, even if want to increase its magnetic conduction cross section by increasing the mode of silicon steel sheet materials, can not effectively improve the magnetic conduction ability of this iron core.The core-type reactor of this iron core is installed simultaneously, and sound is very large at work, causes noise pollution.
Utility model content
The technical problems to be solved in the utility model is that in order to overcome, in prior art, iron core permeability is low, leakage field is large, magnetically saturated defect more greatly, easily occurs magnetic loss, and a kind of permeability is high, magnetic loss is little iron core, iron core group, core-type reactor and intermediate frequency power supply equipment are provided.
The utility model is to solve above-mentioned technical problem by following technical proposals:
A kind of iron core, be characterized in, include: the first silicon steel sheet of some rectangles and a coating film, those first silicon steel sheets become radial around a central shaft and equidistantly, evenly arrange, form a similar cylindrical structure, this coating film is around coated those first silicon steel sheets of this central shaft, those silicon steel sheets are rolled into an integral body, and this iron core is greater than 95% perpendicular to the ratio of the area of the cross section of this central shaft and the area of a circle, this circular radius equals arbitrary the first silicon steel sheet and away from a side of this central shaft, arrives the distance of this central shaft.The utility model makes the magnetic conduction cross section of iron core become large by said structure, and unit cross section magnetic conduction density reduces, thereby has improved permeability, has reduced magnetic loss, reduced caloric value.
Preferably, on the face of the same side radially along this central shaft of those the first silicon steel sheets, be respectively equipped with the second silicon steel sheet of a rectangle, namely can perpendicular to clockwise direction in two sides of paper or an anticlockwise face, be provided with the second silicon steel sheet with reference to all first silicon steel sheets of the iron core shown in figure 4, the area of this second silicon steel sheet is less than the area of described the first silicon steel sheet.By said structure, reduced the air gap between adjacent two the first silicon steel sheets, further reached the object that improves permeability, reduces magnetic loss.
Preferably, described in each, the second silicon steel sheet is formed by several silicon steel sheet stacks respectively, has further reduced the air gap between adjacent two the first silicon steel sheets, has improved permeability.
Preferably, described in each, the number of silicon steel sheet described in the second silicon steel sheet is five.
The utility model also provides a kind of iron core group, be characterized in, this iron core group comprises the iron core of at least two above-mentioned any one combinations, and the central shaft of those iron core stack settings and each iron core, on same straight line, is provided with an insulating pad between two adjacent iron cores.Iron core group of the present utility model outside thering is the advantage of above-mentioned iron core, while also thering is work noise little, be easy to start.
Preferably, the two ends of this iron core group are also respectively equipped with an insulating pad.
Preferably, the number of this iron core is three.
The utility model also provides a kind of core-type reactor, comprises a upper magnet yoke and a lower yoke, is characterized in, is provided with the iron core of above-mentioned any one combination or the iron core group of above-mentioned any one combination between this upper magnet yoke and this lower yoke.Described core-type reactor has been because comprised above-mentioned iron core or iron core group, and had better performance.In addition, described upper magnet yoke and described lower yoke are prior art, and described iron core or iron core group are installed between described upper magnet yoke and described lower yoke and adopt prior art also can realize
The utility model also provides a kind of intermediate frequency power supply equipment, comprises a commutation system and an inversion system, is characterized in, this intermediate frequency power supply equipment also comprises above-mentioned core-type reactor, and this core-type reactor is connected with this inversion system with this commutation system respectively.Described commutation system and described inversion system adopt prior art just can realize.
Meeting on the basis of this area general knowledge, above-mentioned each optimum condition, can combination in any, obtains each preferred embodiments of the utility model.
Positive progressive effect of the present utility model is: iron core of the present utility model is by by some the first silicon steel sheets, the structure with radial arrangement has greatly improved permeability, has reduced magnetic loss, reduced caloric value; Iron core group is by having realized by described iron core is combined the object that reduces operating noise, is easy to startup; Core-type reactor and intermediate frequency power supply equipment make performance obtain optimization because having possessed described iron core or iron core group.
Accompanying drawing explanation
Fig. 1 is the front view of iron core of the prior art.
Fig. 2 is the vertical view of iron core of the prior art.
Fig. 3 is the front view of the iron core of the utility model embodiment.
Fig. 4 is the vertical view of the iron core of the utility model embodiment.
Fig. 5 is the front view of the iron core group of the utility model embodiment.
Fig. 6 is the structural representation of the core-type reactor of the utility model embodiment.
Embodiment
Lift a preferred embodiment below, and carry out by reference to the accompanying drawings the clearer the utility model that intactly illustrates.
Embodiment
A kind of iron core 21, as Fig. 3 and Fig. 4, include: the 5th silicon steel sheet 215 of 214,33 rectangles of the 4th silicon steel sheet of 213,33 rectangles of the 3rd silicon steel sheet of 212,33 rectangles of the second silicon steel sheet of 211,33 rectangles of the first silicon steel sheet of 33 rectangles (only schematically part the first silicon steel sheet, the second silicon steel sheet, the 3rd silicon steel sheet, the 4th silicon steel sheet and the 5th silicon steel sheet being marked in figure) and a coating film 216 (shown in Fig. 4).The first silicon steel sheet 211, the second silicon steel sheet 212, the 3rd silicon steel sheet 213, the 4th silicon steel sheet 214 are identical with the length of the 5th silicon steel sheet 215, width reduces successively.
One end of those the first silicon steel sheets 211 offsets, and becomes radial equidistantly, evenly arrange around a central shaft.Described in each, the first silicon steel sheet 211 is along in two sides radially of this central shaft, be positioned at and foldedly respectively on the side of same side be provided with described second silicon steel sheet 212, this second silicon steel sheet 212 contacts with two adjacent the first silicon steel sheets 211 respectively near axial two limits, central shaft Mian Shangyan center.Described in each, the second silicon steel sheet 212 is provided with described the 3rd silicon steel sheet 213, the three silicon steel sheets 213 and contacts with the first silicon steel sheet 211 with the second adjacent silicon steel sheet 212 respectively near axial two limits, central shaft Mian Shangyan center along also folded respectively on the side radially of this central shaft.Described in each, the 3rd silicon steel sheet 213 is provided with described the 4th silicon steel sheet 214, the four silicon steel sheets 214 and contacts with the first silicon steel sheet 211 with the 3rd adjacent silicon steel sheet 213 respectively near axial two limits, central shaft Mian Shangyan center along also folded respectively on the side radially of this central shaft.Described in each, the 4th silicon steel sheet 214 is provided with described the 5th silicon steel sheet 215, the five silicon steel sheets 215 and contacts with the first silicon steel sheet 211 with the 4th adjacent silicon steel sheet 214 respectively near axial two limits, central shaft Mian Shangyan center along also folded respectively on the side radially of this central shaft.
This coating film 216 is around coated those first silicon steel sheets 211 of this central shaft, those second silicon steel sheets 212, those the 3rd silicon steel sheets 213, those the 4th silicon steel sheets 214 and those the 5th silicon steel sheets 215, so that those first silicon steel sheets 211, those second silicon steel sheets 212, those the 3rd silicon steel sheets 213, those the 4th silicon steel sheets 214 and those the 5th silicon steel sheets 215 parcels are in aggregates.This iron core, without using welding, the alternate manners such as connector being set, only just can form an integral body by coated mode.
The similar cylinder of outline of this iron core 21, inner those first silicon steel sheets 211, those second silicon steel sheets 212, those the 3rd silicon steel sheets 213, those the 4th silicon steel sheets 214 and those the 5th silicon steel sheets 215 become radial around this central shaft.This iron core 21 equals 98% perpendicular to the ratio of the area of the cross section of this central shaft and the area of a circle, and this circular radius equals arbitrary the first silicon steel sheet 211 and away from a side of this central shaft, arrives the distance of this central shaft.
The iron core group 2 of the present embodiment, as Fig. 5, comprises three described iron cores 21 and four insulating pads 22.The central shaft of those iron core 21 stack settings and each iron core 21 is on same straight line, between two adjacent iron cores 21, be provided with a described insulating pad 22, in addition, be arranged at the upper end of iron core 21 of the superiors and the lower end that is arranged at undermost iron core 21 and be also respectively equipped with a described insulating pad 22.
The core-type reactor of the present embodiment has comprised this iron core group 2, and this iron core group 2 is arranged between the upper magnet yoke 3 and lower yoke 4 of this core-type reactor.Wherein, this upper magnet yoke 3 and this lower yoke 4 are prior art, and this iron core group 2 is arranged between this upper magnet yoke 3 and this lower yoke 4 and adopts prior art to realize, and detailed process does not repeat them here.
To one, comprised that the intermediate frequency furnace A and of described core-type reactor has comprised that the intermediate frequency furnace B of the core-type reactor of the iron core 1 possessing in background technology tests, and the power of these two intermediate frequency furnaces is 16000KW.During test, room temperature is 35 ℃, these two intermediate frequency furnaces all at Operation at full power distance, the temperature that records iron core when work of intermediate frequency furnace B reaches as high as between 170～180 ℃, noise is the highest 100～120 decibels, and the temperature in the iron core of intermediate frequency furnace A when work is the highest, only have 100～110 ℃, noise is below 70 decibels.By above-mentioned measurement result, can be found out, intermediate frequency furnace A, because having had the iron core group 2 of the present embodiment, has had good improvement on temperature and noise than intermediate frequency furnace B.This be because, the iron core group 2 of intermediate frequency furnace A promotes greatly than existing iron core 1 permeability, the flux circuit of high permeability for almost all the magnetic lines of force complete loop is provided, high permeability due to iron core loop, the magnetic line of force is almost all circulated in iron core, and there will not be magnetic saturation phenomenon, thereby energy loss, heating problem that core-type reactor produces due to magnetic saturation have thoroughly been eradicated, simultaneously because the air gap in iron core group 2 diminishes, reduce the vibrations in work, and then reduced operating noise.
On the basis of the present embodiment, on each the 5th silicon steel sheet 215, also can fold and establish the 6th silicon steel sheet that length is identical with the first silicon steel sheet 211, width is less than the 5th silicon steel sheet 215 and the 7th silicon steel sheet that the rest may be inferred etc., to increase this iron core 21 perpendicular to the area of the cross section of this central shaft and the ratio of this circular area, this is than larger, and permeability is higher.Those skilled in the art also can, on the basis of the present embodiment, reduce the folded silicon steel sheet of establishing between two adjacent the first silicon steel sheets 211.
The intermediate frequency power supply equipment of the present embodiment, comprises a commutation system, an inversion system and this core-type reactor, and this core-type reactor is connected with this inversion system with this commutation system respectively.Wherein, this commutation system and this inversion system are prior art, and this core-type reactor is connected respectively employing prior art can be realized with this commutation system with this inversion system, and detailed process does not repeat them here.
Although more than described embodiment of the present utility model, it will be understood by those of skill in the art that these only illustrate, protection range of the present utility model is limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present utility model and essence, can make various changes or modifications to these execution modes, but these changes and modification all fall into protection range of the present utility model.
Claims (9)
1. an iron core, it is characterized in that, include: the first silicon steel sheet of some rectangles and a coating film, those first silicon steel sheets become radial around a central shaft and equidistantly, evenly arrange, this coating film is around coated those first silicon steel sheets of this central shaft, this iron core is greater than 95% perpendicular to the ratio of the area of the cross section of this central shaft and the area of a circle, and this circular radius equals arbitrary the first silicon steel sheet and away from a side of this central shaft, arrives the distance of this central shaft.
2. iron core as claimed in claim 1, is characterized in that, is respectively equipped with the second silicon steel sheet of a rectangle on the face of the same side radially along this central shaft of those the first silicon steel sheets, and the area of this second silicon steel sheet is less than the area of described the first silicon steel sheet.
3. iron core as claimed in claim 2, is characterized in that, described in each, the second silicon steel sheet is established and formed by several silicon steel sheet stacks respectively.
4. iron core as claimed in claim 3, is characterized in that, described in each, the number of silicon steel sheet described in the second silicon steel sheet is five.
5. an iron core group, is characterized in that, this iron core group comprises at least two iron cores as described in any one in claim 1-4, and the central shaft of those iron core stack settings and each iron core, on same straight line, is provided with an insulating pad between two adjacent iron cores.
6. iron core group as claimed in claim 5, is characterized in that, the two ends of this iron core group are also respectively equipped with an insulating pad.
7. iron core group as claimed in claim 5, is characterized in that, the number of this iron core is three.
8. a core-type reactor, comprises a upper magnet yoke and a lower yoke, it is characterized in that, is provided with iron core or the iron core group as described in any one in claim 5-7 as described in any one in claim 1-4 between this upper magnet yoke and this lower yoke.
9. an intermediate frequency power supply equipment, comprises a commutation system and an inversion system, it is characterized in that, this intermediate frequency power supply equipment also comprises core-type reactor as claimed in claim 8, and this core-type reactor is connected with this inversion system with this commutation system respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420289243.7U CN203931749U (en) | 2014-05-30 | 2014-05-30 | Iron core, iron core group, core-type reactor and intermediate frequency power supply equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420289243.7U CN203931749U (en) | 2014-05-30 | 2014-05-30 | Iron core, iron core group, core-type reactor and intermediate frequency power supply equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203931749U true CN203931749U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420289243.7U Expired - Lifetime CN203931749U (en) | 2014-05-30 | 2014-05-30 | Iron core, iron core group, core-type reactor and intermediate frequency power supply equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203931749U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104616864A (en) * | 2014-11-07 | 2015-05-13 | 广东电网有限责任公司江门供电局 | Magnetically-saturated reactor iron core column, multi-section iron core column and reactor |
-
2014
- 2014-05-30 CN CN201420289243.7U patent/CN203931749U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104616864A (en) * | 2014-11-07 | 2015-05-13 | 广东电网有限责任公司江门供电局 | Magnetically-saturated reactor iron core column, multi-section iron core column and reactor |
| CN104616864B (en) * | 2014-11-07 | 2017-02-15 | 广东电网有限责任公司江门供电局 | Magnetically-saturated reactor iron core column, multi-section iron core column and reactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201607 No. 555, Zhongmin Road, Maogang Town, Songjiang District, Shanghai Patentee after: Shanghai Zhaoli electric furnace equipment Co.,Ltd. Address before: 201607 No. 555, Zhongmin Road, Maogang Town, Songjiang District, Shanghai Patentee before: SHANGHAI ZHAOLI ELECTRICAL APPLIANCES MANUFACTURING Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |