CN202352467U - Sheet-folding type transformer iron core - Google Patents
Sheet-folding type transformer iron core Download PDFInfo
- Publication number
- CN202352467U CN202352467U CN2011204967398U CN201120496739U CN202352467U CN 202352467 U CN202352467 U CN 202352467U CN 2011204967398 U CN2011204967398 U CN 2011204967398U CN 201120496739 U CN201120496739 U CN 201120496739U CN 202352467 U CN202352467 U CN 202352467U
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- iron core
- unshakable
- determination
- lower half
- silicon steel
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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 43
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000005452 bending Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 210000001503 joint Anatomy 0.000 abstract 3
- 230000007547 defect Effects 0.000 abstract 1
- 238000003475 lamination Methods 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
The utility model relates to a sheet-folding type transformer iron core. The sheet-folding type transformer iron core comprises a plurality of iron core frames, wherein each iron core frame is formed by the butt joint of an upper half part iron core and a lower half part iron core, and the iron core frames are formed by the butt joint of two end parts of the upper half part iron cores and two corresponding end parts of the lower half part iron cores; the upper half part iron core is formed by bending a plurality of silicon-steel sheets, the lower half part iron core is formed by bending a plurality of the silicon-steel sheets, and the total number of the silicon-steel sheet in the upper half part iron core is the same as that in the lower half part iron core; and each folding edge in the upper half part iron core and the lower half part iron core is of a vertical plate shape, the cross section of the upper half part iron core and the lower half part iron core after the butt joint is of a planar convex polygon shape with more than four edges, and each interior angle of the planar convex polygon shape is an obtuse angle. According to the sheet-folding type transformer iron core disclosed by the utility model, the inherent defects existing in a laminated iron core structure and a roll film iron core structure are solved, and the sheet-folding type transformer iron core has the advantages of good manufacturing technology of a laminated iron core transformer and good magnetic performance of a roll film iron core.
Description
Technical field
The utility model relates to a kind of transformer core, especially a kind of tabs formula transformer core.
Background technology
Traditional transformer core lamination mode has two types: one type is laminated core, and the plain film stack that blocks into different length with the electrical sheet billot forms; Another kind of is to form the roll film iron core with the electrical sheet billot through rolling continuously.The single frame laminated core is like Fig. 1, shown in 2.The single frame laminated core is generally formed a closed magnetic circuit by four plain films unshakable in one's determination at least; Owing to have four plane abutment joints (abutment joint is on same straight line) at least; Even adopt advanced step-lap laminated also can make the serious deterioration of lamination magnetic property; And the electrical sheet utilance is low, consumptive material is many, volume is big, core loss is big, noise is high, but unshakable in one's determination and coil can separately make, and the transformer anufacturability is good.Single frame roll film iron core is as shown in Figure 3.The roll film iron core rolls continuously with billot and forms, and iron circuit is consistent with the magnetic conduction direction of orientation silicon steel sheet, and the closed core magnetic property is superior, and the electrical sheet utilance is high, and consumptive material is few, and iron loss is low, and noise is little.But Wound iron-core transformer must adopt the special equipment coiling in the heart at finished iron, and manufacturing process is complicated, and control of product quality has big difficulty, and the capacity of manufacturing a product has certain restriction, generally below 630KVA.Coil must be circular, and other just can't coiling like oblate, square coil, so roll film iron-core transformer anufacturability is poor.
Summary of the invention
The purpose of the utility model is to overcome the deficiency that exists in the prior art, and the tabs formula that a kind of anufacturability is good, Magnetic Performance Core is good transformer core is provided.
The technical scheme that provides according to the utility model; Said tabs formula transformer core; It comprises several iron core frames, and each iron core frame forms inserting with the Lower Half iron core by the first half is unshakable in one's determination, and both ends that the first half is unshakable in one's determination and Lower Half opposite ends portion unshakable in one's determination forms iron core frame to inserting; First half iron core is bent to form by some silicon steel sheets, and the Lower Half iron core is bent to form by some silicon steel sheets, the first half unshakable in one's determination with the Lower Half iron core in the silicon steel sheet sum identical; The said first half unshakable in one's determination with the Lower Half iron core in every flanging be directly tabular, the first half unshakable in one's determination with the Lower Half iron core be the plane convex polygon of limit number to the shape of cross section after inserting greater than four limits, and each interior angle of this plane convex polygon is the obtuse angle.
The first half in each iron core frame unshakable in one's determination with the Lower Half iron core to after inserting, the formation of corresponding silicon steel sheet end is to the interpolation slit crack in the silicon steel sheet end in the first half iron core and the Lower Half iron core, and adjacent two be the interpolation slit crack and shift to install.
Each interior angle of said plane convex polygon is all identical.
Said first half iron core is the protruding octagon in plane with the Lower Half iron core to the shape of cross section after inserting, and protruding octagonal each interior angle in this plane is 135 °.
The first half in several iron core frames is unshakable in one's determination to form iron core or three-phase stereo iron core in three phase plane outer iron cores, three phase planes with the Lower Half iron core to inserting the back.
A side end face of adjacent two silicon steel sheets is and shifts to install in the said first half iron core, and the opposite side end face of adjacent two silicon steel sheets is oppositely and shifts to install in the first half iron core.
A side end face of adjacent two silicon steel sheets is and shifts to install in the said Lower Half iron core, and the opposite side end face of adjacent two silicon steel sheets is oppositely and shifts to install in the Lower Half iron core.
A side end face of adjacent two silicon steel sheets is and shifts to install in the said first half iron core, is oppositely with the same side end face of corresponding adjacent two silicon steel sheets in the Lower Half iron core that adjacent two silicon steel sheets in the first half iron core match mutually to shift to install.
The utility model has solved the inherent shortcoming of laminated core and the existence of roll film core construction, the utlity model has the good advantage of laminated core transformer anufacturability, and the utility model also has the good advantage of roll film Magnetic Performance Core.
Description of drawings
Fig. 1 is one of structural representation of prior art single frame laminated core.
Fig. 2 be the laminated core of prior art single frame structural representation two.
Fig. 3 is a prior art single frame roll film structural representation unshakable in one's determination.
Fig. 4 is the structural representation of the utility model.
Fig. 5 be the utility model to inserting scheme of installation.
Fig. 6 is the enlarged drawing of I part among Fig. 4.
Fig. 7 is the structural representation of three phase plane outer iron cores.
Fig. 8 is the structural representation of iron core in three phase planes.
Fig. 9 is the front view of three-phase stereo iron core.
Figure 10 is the left view of three-phase stereo iron core.
Figure 11 is the vertical view of three-phase stereo iron core.
Embodiment
Below in conjunction with concrete accompanying drawing and embodiment the utility model is described further.
As shown in the figure, the utility model is mainly unshakable in one's determination 1 by the first half, Lower Half is unshakable in one's determination 2, silicon steel sheet 3 with parts such as interpolation slit crack 4 are constituted.
This tabs formula transformer core, it comprises several iron core frames, and each iron core frame is inserted formation by 2 pairs unshakable in one's determination of the first half unshakable in one's determination 1 and Lower Half, and the opposite ends portion of the both ends of the first half unshakable in one's determination 1 and Lower Half unshakable in one's determination 2 forms iron core frame to inserting; The first half unshakable in one's determination 1 is bent to form by some silicon steel sheets 3, and Lower Half unshakable in one's determination 2 is bent to form by some silicon steel sheets 3, and the first half unshakable in one's determination 1 is total identical with silicon steel sheet 3 in the Lower Half unshakable in one's determination 2; Every flanging is directly tabular in the said first half unshakable in one's determination 1 and the Lower Half unshakable in one's determination 2, and the first half unshakable in one's determination 1 and Lower Half 2 pairs of shape of cross sections after inserting unshakable in one's determination are the plane convex polygon of limit number greater than four limits, and each interior angle of this plane convex polygon is the obtuse angle.
The first half in each iron core frame unshakable in one's determination 1 and Lower Half unshakable in one's determination 2 pairs insert after, the formation of corresponding silicon steel sheet 3 ends is to interpolation slit crack 4 in silicon steel sheet 3 ends in the first half unshakable in one's determination 1 and the Lower Half iron core 2, and adjacent two be interpolation slit crack 4 and shift to install, as shown in Figure 6.
Each interior angle of said plane convex polygon is all identical.
Shape of cross section after the said first half unshakable in one's determination 1 is inserted with 2 pairs of Lower Half iron cores is the protruding octagon in plane, and protruding octagonal each interior angle in this plane is 135 °.
The first half in several iron core frames unshakable in one's determination 1 forms iron core or three-phase stereo iron core in three phase plane outer iron cores, three phase planes with Lower Half 2 pairs of slotting backs unshakable in one's determination.
A side end face of adjacent two silicon steel sheets 3 is and shifts to install in the said first half unshakable in one's determination 1, and the opposite side end face of adjacent two silicon steel sheets 3 is oppositely and shifts to install in the first half unshakable in one's determination 1.
A side end face of adjacent two silicon steel sheets 3 is and shifts to install in the said Lower Half unshakable in one's determination 2, and the opposite side end face of adjacent two silicon steel sheets 3 is oppositely and shifts to install in the Lower Half unshakable in one's determination 2.
A side end face of adjacent two silicon steel sheets 3 is and shifts to install in the said first half unshakable in one's determination 1, is oppositely with the same side end face of corresponding adjacent two silicon steel sheets 3 in the Lower Half iron core 2 that adjacent two silicon steel sheets 3 in the first half unshakable in one's determination 1 matchs mutually to shift to install.
Each iron core frame of the utility model is like Fig. 4, shown in 5; Each iron core frame is pressed certain length bending certain angle one by one by the silicon steel sheet 3 (being electrician's billot) of certain width; Form the polygon lamination half, two half polygon laminations are inserted mutually formed a complete polygon lamination, these polygon laminations are pressed above-mentioned rule stack; The iron core frame that forms a closure is whole, and required iron core frame finished product is processed in combination after annealing.The utility model is suitable for using on all range transformers that adopt electrician's billot to make.
Each layer silicon steel sheet 3 in the single iron core frame if adopt the billot stack of different in width to form, can form difform longitudinal section, like arbitrary shapes such as circle, rectangle, oblatenesses.
The iron core frame combination of 4 the utility model can be formed three phase plane outer iron cores, as shown in Figure 7.
The iron core frame combination of 3 the utility model can be formed iron core in three phase planes, as shown in Figure 8.
The iron core frame combination of 3 the utility model can be formed the three-phase stereo iron core, like Fig. 9,10, shown in 11.
Claims (8)
1. tabs formula transformer core; It comprises several iron core frames; Each iron core frame forms inserting by the first half (1) unshakable in one's determination and Lower Half (2) unshakable in one's determination, and the opposite ends portion of the both ends of the first half (1) unshakable in one's determination and Lower Half (2) unshakable in one's determination forms iron core frame to inserting; The first half (1) unshakable in one's determination is bent to form by some silicon steel sheets (3), and Lower Half (2) unshakable in one's determination is bent to form by some silicon steel sheets (3), and the first half (1) unshakable in one's determination is total identical with the silicon steel sheet (3) in the Lower Half iron core (2); It is characterized in that: every flanging is directly tabular in the said first half (1) unshakable in one's determination and the Lower Half (2) unshakable in one's determination; The first half (1) unshakable in one's determination is the plane convex polygon of limit number greater than four limits with Lower Half (2) unshakable in one's determination to the shape of cross section after inserting, and each interior angle of this plane convex polygon is the obtuse angle.
2. tabs formula transformer core as claimed in claim 1; It is characterized in that: the first half in each iron core frame (1) unshakable in one's determination and Lower Half (2) unshakable in one's determination are to after inserting; The formation of corresponding silicon steel sheet (3) end is to interpolation slit crack (4) in silicon steel sheet (3) end in the first half unshakable in one's determination (1) and the Lower Half iron core (2), and adjacent two are interpolation slit crack (4) and shift to install.
3. tabs formula transformer core as claimed in claim 1 is characterized in that: each interior angle of said plane convex polygon is all identical.
4. tabs formula transformer core as claimed in claim 1 is characterized in that: the said first half (1) unshakable in one's determination is the protruding octagon in plane with Lower Half (2) unshakable in one's determination to the shape of cross section after inserting, and protruding octagonal each interior angle in this plane is 135 °.
5. tabs formula transformer core as claimed in claim 1 is characterized in that: the first half in several iron core frames (1) unshakable in one's determination forms iron core or three-phase stereo iron core in three phase plane outer iron cores, three phase planes with Lower Half (2) unshakable in one's determination to inserting the back.
6. tabs formula transformer core as claimed in claim 1; It is characterized in that: a side end face of adjacent two silicon steel sheets (3) is and shifts to install in the said first half (1) unshakable in one's determination, and the opposite side end face of adjacent two silicon steel sheets (3) is oppositely and shifts to install in the first half (1) unshakable in one's determination.
7. tabs formula transformer core as claimed in claim 1; It is characterized in that: a side end face of adjacent two silicon steel sheets (3) is and shifts to install in the said Lower Half (2) unshakable in one's determination, and the opposite side end face of adjacent two silicon steel sheets (3) is oppositely and shifts to install in the Lower Half (2) unshakable in one's determination.
8. tabs formula transformer core as claimed in claim 1; It is characterized in that: a side end face of adjacent two silicon steel sheets (3) is and shifts to install in the said first half (1) unshakable in one's determination, and the same side end face of middle corresponding adjacent two silicon steel sheets (3) of Lower Half (2) unshakable in one's determination that matchs mutually with adjacent two silicon steel sheets (3) in the first half (1) unshakable in one's determination is oppositely and shifts to install.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204967398U CN202352467U (en) | 2011-12-03 | 2011-12-03 | Sheet-folding type transformer iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204967398U CN202352467U (en) | 2011-12-03 | 2011-12-03 | Sheet-folding type transformer iron core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202352467U true CN202352467U (en) | 2012-07-25 |
Family
ID=46541452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204967398U Expired - Lifetime CN202352467U (en) | 2011-12-03 | 2011-12-03 | Sheet-folding type transformer iron core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202352467U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105469951A (en) * | 2016-02-10 | 2016-04-06 | 齐侠 | Folding type planar one-phase open transformer core |
| CN105990005A (en) * | 2015-02-15 | 2016-10-05 | 上海置信电气非晶有限公司 | Silicon-steel broken-yoke three-dimensional bending iron core of three-phase transformer |
| CN106024321A (en) * | 2016-06-16 | 2016-10-12 | 秦皇岛市燕秦纳米科技有限公司 | Low-noise CD-type iron core, transformer and iron core preparation method |
| CN106298188A (en) * | 2015-06-05 | 2017-01-04 | 齐会南 | Collapsible open delta shaped iron core and technique |
| CN107317417A (en) * | 2017-08-29 | 2017-11-03 | 中车株洲电机有限公司 | A kind of magneto and its rotor core |
| CN106298177B (en) * | 2016-09-08 | 2018-11-27 | 特变电工股份有限公司 | A kind of solid open coil iron core, coil and power transformer |
| CN111477452A (en) * | 2020-05-29 | 2020-07-31 | 重庆望变电气（集团）股份有限公司 | Production process of folding iron core for dry-type transformer |
| CN111477433A (en) * | 2020-05-29 | 2020-07-31 | 重庆望变电气（集团）股份有限公司 | Folding iron core for dry type transformer |
| CN111477451A (en) * | 2020-05-29 | 2020-07-31 | 重庆望变电气（集团）股份有限公司 | Assembly process of folding iron core and coil of dry-type transformer |
-
2011
- 2011-12-03 CN CN2011204967398U patent/CN202352467U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105990005A (en) * | 2015-02-15 | 2016-10-05 | 上海置信电气非晶有限公司 | Silicon-steel broken-yoke three-dimensional bending iron core of three-phase transformer |
| CN106298188A (en) * | 2015-06-05 | 2017-01-04 | 齐会南 | Collapsible open delta shaped iron core and technique |
| CN105469951A (en) * | 2016-02-10 | 2016-04-06 | 齐侠 | Folding type planar one-phase open transformer core |
| CN106024321A (en) * | 2016-06-16 | 2016-10-12 | 秦皇岛市燕秦纳米科技有限公司 | Low-noise CD-type iron core, transformer and iron core preparation method |
| CN106024321B (en) * | 2016-06-16 | 2018-08-17 | 秦皇岛市燕秦纳米科技有限公司 | Low-noise CD-type iron core, transformer and iron core preparation method |
| CN106298177B (en) * | 2016-09-08 | 2018-11-27 | 特变电工股份有限公司 | A kind of solid open coil iron core, coil and power transformer |
| CN107317417A (en) * | 2017-08-29 | 2017-11-03 | 中车株洲电机有限公司 | A kind of magneto and its rotor core |
| CN111477452A (en) * | 2020-05-29 | 2020-07-31 | 重庆望变电气（集团）股份有限公司 | Production process of folding iron core for dry-type transformer |
| CN111477433A (en) * | 2020-05-29 | 2020-07-31 | 重庆望变电气（集团）股份有限公司 | Folding iron core for dry type transformer |
| CN111477451A (en) * | 2020-05-29 | 2020-07-31 | 重庆望变电气（集团）股份有限公司 | Assembly process of folding iron core and coil of dry-type transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |
|
| CX01 | Expiry of patent term |