CN204614616U - A kind of compound amorphous transformer core - Google Patents
A kind of compound amorphous transformer core Download PDFInfo
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- CN204614616U CN204614616U CN201520142811.5U CN201520142811U CN204614616U CN 204614616 U CN204614616 U CN 204614616U CN 201520142811 U CN201520142811 U CN 201520142811U CN 204614616 U CN204614616 U CN 204614616U
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Abstract
The utility model provides a kind of compound amorphous transformer core.Be provided with three independent rectangle iron core frames, iron core frame adopts lap wound mode compound to form by non-crystaline amorphous metal and orientation silicon steel bi-material, three rectangle iron cores are butted into 3-D triangle structure, this structure three-phase symmetrical, three-phase magnetic circuit is equal and the shortest, transformer performance is superior, and noise is low, and anti-short circuit capability is strong; Core structure is compact, and volume of transformer is little, lightweight, and iron core weight is only about 2/3 of conventional structure amorphous iron core, greatly can reduce product cost.
Description
Technical field
The utility model relates to a kind of development and Design of the amorphous stereo triangle transformer iron core adopting amorphous alloy strips and orientation silicon steel bi-material jointly to make.
Background technology
Amorphous alloy iron core distribution transformer has obtained the accreditation of people as a kind of energy saving and environment friendly product, to the energy-saving and emission-reduction of national grid, build " green network " important in inhibiting, in the file that Guo Wang company prints and distributes in July, 2012, clear stipulaties: in the distribution transformer of State Grid Corporation of China's buying in 2012, amorphous distribution transformer accounts for 50%, in the distribution transformer of State Grid Corporation of China's buying in 2013, amorphous distribution transformer accounts for 55%, in the distribution transformer of State Grid Corporation of China's buying in 2014, amorphous distribution transformer accounts for 60%, to the transformation of high energy consumption distribution transforming, change and then require all to adopt amorphous distribution transformer.In " the international efficiency forum of transformer in 2014 ", also explicitly call for China's distribution transformer model by the complete upgrading of S9 type to S13 and S15 type high energy efficiency transformer, the amorphous transformer therefore possessing high-efficiency environment friendly energy-conservation has boundless market prospects simultaneously.The performance advantage of amorphous distribution transformer is then embodied on amorphous iron core completely, therefore the performance quality of amorphous iron core and reasonable structure directly determine performance condition and the economy of amorphous distribution transformer, but the structure of current conventional amorphous iron core exists a lot of defect, greatly have impact on performance advantage and the economy of amorphous transformer.
The conventional amorphous distribution transformer cores generally adopted at present mainly adopts the wide amorphous band of 140mm-220mm directly to reel, be shaped to the iron core ring of single rectangle, then form three-phase and five-pole or the use of three-phase three-limb planar structure by single iron core ring.Rectangle iron core is made up of upper and lower iron yoke and two stem stems.Mainly there is following defect in this structure iron core: 1. core volume is large, cost is high; 2. magnetic circuit existing defects, two return yokes are that triple-frequency harmonics provides path; 3. iron core weight is large, and transformer noise is high; 4. iron core is square-section, uneven when rectangle winding is stressed, anti-short circuit capability difference etc.In addition, the price of non-crystalline material is also higher than silicon steel material a lot, the price of current conventional structure amorphous transformer is about 1.3 times of same model silicon steel transformer, and along with the release of Wuhan Iron and Steel Plant high-performance ultrathin silicon steel sheet, silicon steel transformer is in quick update, cost performance is more and more higher, therefore the amorphous transformer of conventional core structure does not more and more have vitality and the market competitiveness at present, thus make the popularization of amorphous transformer also receive certain restriction, therefore amorphous transformer wants the first chance that dominates the market, must have breakthrough on core structure, break original design concept, employ new technology, new construction, a kind of novel amorphous iron cores had compared with high performance-price ratio of measure exploitation such as new technology, just can guarantee the development vitality of amorphous transformer.
Summary of the invention
The utility model relates to a kind of compound amorphous transformer core.
In order to solve the problem, the technical solution of the utility model is, a kind of compound amorphous transformer core, is provided with three independent rectangle iron cores, and iron core frame adopts lap wound mode compound composition, and three rectangle iron cores are butted into 3-D triangle structure.
Optimally, the iron core column cross section of the integrated iron core assembled is for circular, and iron yoke portion is semicircle, and iron yoke sectional area is the half of iron core column sectional area.
Optimally, iron core frame adopts opening overlapping mode.
Optimally, the lap joint of iron core frame adopts fan-shaped overlapping mode, and overlap is positioned at lower yoke portion.
Optimally, iron core lap wound adopts amorphous alloy strips and oriented silicon steel band bi-material.
Optimally, amorphous alloy strips width is 70mm-300mm.
Optimally, orientation silicon steel tape thickness is 0.27mm or 0.30mm.
Optimally, oriented silicon steel band and amorphous alloy strips adopt that toughness is gluing to be connect.
Optimally, main part adopts amorphous alloy strips lap wound, and step and corner parts adopt oriented silicon steel band to fill coiling, and core section is combined into circle by bi-material.
The utility model adopts 3-D triangle structure: this structure three-phase symmetrical, three-phase magnetic circuit is equal and the shortest, magnetic circuit circulation style can make the sectional area of Double layer iron yoke be reduced to the magnetic flux of magnetic circuit when 1/2 of stem stem can ensure that transformer runs to reach designing requirement, core structure is compact, volume of transformer is little, lightweight, iron core weight is only about 2/3 of conventional structure amorphous iron core; Greatly can reduce product cost.This structure is because iron core weight is little, magnetic structure is more reasonable simultaneously, therefore core loss is also low by about 25% than same specification conventional amorphous iron core damage, and the conventional amorphous transformer noise of the comparable same specification of transformer noise reduces by 2 dB ~ 3dB.
Iron core column periphery step part adopts silicon strip to fill, wrap: because current amorphous band Breadth Maximum is less than 300mm, if therefore the slitting mode of amorphous band is taked to be broadened by narrow, narrow from the width the mode of continuous cutting again, although iron core column net sectional area can be made to maximize, but this cutting method makes amorphous band utilance extremely low, scratch tape rate is high, therefore this patent takes the mode utilizing the amorphous band group of different fixed width to fold step by step, effectively prevent amorphous band be difficult to overlap material and cause a large amount of defect of wasting, but the stage portion branch of each inter-stage reduces the effective rate of utilization of stem stem, increase cost.The mode that this patent adopts oriented silicon steel band to fill for this reason makes up this defect, not only effectively improve core section and amass effective rate of utilization, and greatly strengthen the impact strength of amorphous iron core, after effectively prevent amorphous band annealing more crisp frangible, produce the problem of fragment, reduce it by extraneous factor effect, greatly reducing iron core assembly technological coefficient, having positive effect to improving transformer noise.Oriented silicon steel band cost ratio amorphous band is much lower in addition, and saturation magnetic induction Bs is higher, at about 2.0 T, and the acceptable operating point of normal amorphous transformer is at about 1.3T ~ 1.35T, far below its saturation magnetic induction, therefore when 1.35T runs, orientation silicon steel also has very superior electromagnetic performance.
Iron core adopts opening overlapping mode: more crisp according to amorphous band, feature unsuitable stressed in processing and making process, this patent breaks through the pattern of the continuous coiling of conventional stereo triangle iron core, adopt the mode of iron yoke portion opening overlap joint, be convenient to the suit of Transformer Winding, and follow-up maintenance, maintenance etc.
Anti-short circuit capability is strong: the 3-D triangle structural rate planar structure of iron core has better impact resistance, winding adopts circular configuration simultaneously, during sudden short circuit, winding circumferentially each point stressed relatively even, impact resistance is much larger than the winding of conventional rectangular structure.
The amorphous distribution transformer utilizing this patent core structure to design is compared with the amorphous transformer of same money conventional core structure, transformer performance is more excellent, and cost is lower, and transformer noload losses can reduce about 25%, noise reduces 2dB ~ 3dB, and iron core weight is only about 2/3 of conventional core.Meanwhile, the structural shape adopt orientation silicon steel to fill, wrapping not only increases core section and amasss effective rate of utilization, and effectively enhances the mechanical strength of amorphous iron core, improves product anti-short circuit capability.
Accompanying drawing explanation
Fig. 1 is the structural representation after iron core group of the present utility model installs into;
Fig. 2 is the cross section structure schematic diagram of iron core column of the present utility model.
1-iron yoke; 2-iron core column; Yoke overlap under 3-; 4-amorphous alloy strip; 5-oriented silicon steel band.
Embodiment
Embodiment 1:
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with concrete production technology, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
A kind of compound amorphous transformer core, be provided with three independent rectangle iron cores, iron core adopts lap wound mode to be made up of bi-material compound, and three rectangle iron cores are butted into 3-D triangle structure.Iron core column 2 cross section of the integrated iron core assembled is for circular, iron yoke 1 is semicircle, iron yoke 1 sectional area is the half of iron core column 2 sectional area, the lap joint of iron core adopts fan-shaped overlapping mode, overlap is positioned at lower yoke portion, iron core adopts amorphous alloy strip 4 and oriented silicon steel band 5 to carry out lap wound, amorphous alloy strip 4 adopts width to be 70mm, 100mm, 120mm, 140mm, 160mm five kinds of specifications, oriented silicon steel band 5 thickness is 0.27mm, oriented silicon steel band 5 and amorphous alloy strip 4 material adopt that toughness is gluing to be connect, main part adopts amorphous alloy strip 4 lap wound, step and corner parts adopt oriented silicon steel band 5 to fill coiling, iron core column cross section is combined into circle by bi-material, the lap joint of iron core frame adopts opening overlapping mode.
The structural shape of iron core and manufacture method, substantially with conventional silicon-steel tridimensional triangle iron core, adopt opening lapping structure, and by the mode of the amorphous band lap wound of measured length, every 30 is one group; Increment between the group=average tape thickness of 6.28*30*+0.25mm, every grade of group number=every grade of folded thick/(average tape thickness of 30*), ring is folded into step by step by Special iron core mold, lap joint is all positioned at yoke portion, band broadens by by narrow, then the arrangement mode narrowed from the width rearranges cross section step by step for semicircle (step) single frame iron core.Step gap is filled by the same mode that folds with the oriented silicon steel band 5 of corresponding width again, and the two common lap wound becomes cross section to be semicircular iron core ring, and between silicon steel and non-crystaline amorphous metal, coupling part adopts that toughness is gluing connects.Shaping iron core ring needs to take dipping lacquer to solidify process (the iron yoke part not dipping lacquer of band seam end) after the annealing process, finally three finished product iron core rings is docking together and is assembled into novel solid triangular structure iron core.
The above, it is only preferred embodiment of the present utility model, be not restriction the utility model being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solutions of the utility model content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present utility model, still belong to the protection range of technical solutions of the utility model.
Embodiment 2:
The distinguishing characteristics of the present embodiment and embodiment 1 is, the amorphous alloy strips of the present embodiment adopts 100mm, 130mm, 150mm, 170mm, 200mm, 220mm six kinds of width specifications.
Embodiment 3:
The distinguishing characteristics of the present embodiment and embodiment 1 is, the amorphous alloy strips of the present embodiment adopts 150mm, 180mm, 200mm, 230mm, 260mm, 280mm, 300mm seven kinds of width specifications.
Embodiment 4:
The distinguishing characteristics of the present embodiment and embodiment 1 is, the present embodiment orientation silicon steel tape thickness is 0.30mm.
Claims (9)
1. a compound amorphous transformer core, is characterized in that: be provided with three independent rectangle iron cores, and iron core frame adopts lap wound mode compound to form by non-crystaline amorphous metal and orientation silicon steel bi-material, and three rectangle iron cores are butted into 3-D triangle structure.
2. compound amorphous transformer core according to claim 1, is characterized in that: the iron core column cross section of the integrated iron core assembled is for circular, and iron yoke portion is semicircle, and iron yoke sectional area is the half of iron core column sectional area.
3. compound amorphous transformer core according to claim 1 and 2, is characterized in that: iron core frame adopts opening overlapping mode.
4. compound amorphous transformer core according to claim 1, is characterized in that: the lap joint of iron core frame adopts fan-shaped overlapping mode, and overlap is positioned at lower yoke portion.
5. compound amorphous transformer core according to claim 1, is characterized in that: iron core lap wound adopts amorphous alloy strips and oriented silicon steel band bi-material.
6. compound amorphous transformer core according to claim 1, is characterized in that: amorphous alloy strips width is 70mm-300mm.
7. compound amorphous transformer core according to claim 1, is characterized in that: orientation silicon steel tape thickness is 0.27mm or 0.30mm.
8. compound amorphous transformer core according to claim 1, is characterized in that: oriented silicon steel band and amorphous alloy strips adopt that toughness is gluing to be connect.
9. compound amorphous transformer core according to claim 1, is characterized in that: main part adopts amorphous alloy strips lap wound, and step and corner parts adopt oriented silicon steel band to fill coiling, and core section is combined into circle by bi-material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520142811.5U CN204614616U (en) | 2015-03-13 | 2015-03-13 | A kind of compound amorphous transformer core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520142811.5U CN204614616U (en) | 2015-03-13 | 2015-03-13 | A kind of compound amorphous transformer core |
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| CN204614616U true CN204614616U (en) | 2015-09-02 |
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| CN201520142811.5U Withdrawn - After Issue CN204614616U (en) | 2015-03-13 | 2015-03-13 | A kind of compound amorphous transformer core |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105632714A (en) * | 2015-03-13 | 2016-06-01 | 青岛云路先进材料技术有限公司 | Composite amorphous transformer core |
| CN106783062A (en) * | 2016-12-08 | 2017-05-31 | 上海日港置信非晶体金属有限公司 | A kind of disconnected yoke formula amorphous alloy stereo roll iron core and its manufacture method |
| CN114420435A (en) * | 2022-01-25 | 2022-04-29 | 沈阳工业大学 | Design method for section of mixed material wound core for transformer |
-
2015
- 2015-03-13 CN CN201520142811.5U patent/CN204614616U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105632714A (en) * | 2015-03-13 | 2016-06-01 | 青岛云路先进材料技术有限公司 | Composite amorphous transformer core |
| CN105632714B (en) * | 2015-03-13 | 2017-08-25 | 青岛云路先进材料技术有限公司 | A kind of compound amorphous transformer core |
| CN106783062A (en) * | 2016-12-08 | 2017-05-31 | 上海日港置信非晶体金属有限公司 | A kind of disconnected yoke formula amorphous alloy stereo roll iron core and its manufacture method |
| CN106783062B (en) * | 2016-12-08 | 2018-05-29 | 上海日港置信非晶体金属有限公司 | A kind of disconnected yoke formula amorphous alloy stereo roll iron core and its manufacturing method |
| CN114420435A (en) * | 2022-01-25 | 2022-04-29 | 沈阳工业大学 | Design method for section of mixed material wound core for transformer |
| CN114420435B (en) * | 2022-01-25 | 2023-11-24 | 沈阳工业大学 | Method for designing cross section of mixed material wound core for transformer |
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| 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: 20160615 Address after: 266232 Jimo City, Qingdao Province Blue Village Xinyuan Road, No. 9 Patentee after: QINGDAO YUNLU ADVANCED MATERIALS TECHNOLOGY CO., LTD. Address before: 266232, Shandong, Qingdao, Qingdao province Jimo City Blue Town Railway Station West Patentee before: Qingdao Yunlu Energy Technology Co., Ltd. |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20150902 Effective date of abandoning: 20170825 |
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| AV01 | Patent right actively abandoned |