CN202102842U - Transformer and transformer core - Google Patents
Transformer and transformer core Download PDFInfo
- Publication number
- CN202102842U CN202102842U CN2010206987673U CN201020698767U CN202102842U CN 202102842 U CN202102842 U CN 202102842U CN 2010206987673 U CN2010206987673 U CN 2010206987673U CN 201020698767 U CN201020698767 U CN 201020698767U CN 202102842 U CN202102842 U CN 202102842U
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- core
- transformer
- lamination stack
- core lamination
- width
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Abstract
The utility model discloses a transformer and a transformer core. The transformer and the transformer core comprise a first core lamination stack, a second core lamination stack and a third core lamination stack that are sequentially adjacent to one another, and the width of the second core lamination stack is smaller than the widths of the first core lamination stack and the third core lamination stack. With the adoption of the transformer and the transformer core, the incomplete drying defect of producing a radiating oil path in the traditional technology is avoided, the self radiating requirement of the transformer core is met, the operation is simple, and the production cycle is shortened; the transformer and the transformer core are simple and convenient, the core filling rate is improved, and the effective magnet conductive area of the transformer core is increased.
Description
Technical field
The utility model embodiment relates to transformer technology, relates in particular to a kind of transformer and iron core thereof.
Background technology
At present, in a lot of industrial circles, all be applied to transformer.Traditional transformer device structure 100 is as shown in Figure 1, forms by the transformer core stack of laminations, comprises center pillar 110, side column 111, goes up yoke 112 and following yoke 113.Also have in the transformer 100 and be used for the heat radiation oil duct (not shown) that the segmentation iron core sectional dimension increases the iron core area of dissipation.The effect of heat radiation oil duct is that coolant is introduced the transformer fe in-core, and transformer core is carried out radiating and cooling, makes transformer be able to the work of normal reliable ground.Existing heat radiation oil duct be with insulation laminated paper board with on the gluing silicon steel sheet or insulated substrate that is connected on iron core shape of cross section consistent size of PVA, the space between the insulation lath just is called the access way of cold oil.Because therefore many cardboards of insulation board strip adoption adhesive structure will go into the drying box dried to remove moisture after the bonding.This heat radiation oil duct, the ply of paper in the insulating board very easily absorbs moisture, and it is more to contain moisture, and through the pressing tight bond together, dried is difficult to thoroughly remove moisture, thereby influences insulation property between layer and the layer, and therefore causes core insulation resistance to reduce.
Therefore, need a kind of new transformer core, the heat radiation oil duct of its iron core can either play the effect of heat radiation, can avoid dry halfway defective in the traditional fabrication heat radiation oil duct technology again.Can also increase simultaneously the magnetic conductive area of iron core.
The utility model content
The utility model provides a kind of transformer and iron core thereof, in order to solve the dry halfway defective of heat radiation oil duct of the prior art.
The utility model embodiment provides a kind of transformer core; Comprise the first adjacent successively core lamination stack, second core lamination stack and the 3rd iron core lamination; The width of said second core lamination stack is less than the width of said first core lamination stack, and the width of said second core lamination stack is less than the width of said the 3rd iron core lamination.
Aforesaid transformer core, preferably, said first core lamination stack, said second core lamination stack and said the 3rd iron core lamination have same symmetry axis on Width.
Aforesaid transformer core, preferably, said first core lamination stack is identical with the width of said the 3rd iron core lamination.
Aforesaid transformer core, preferably, said second core lamination stack is positioned at the center of said transformer core.
Aforesaid transformer core, preferably, the width of said first core lamination stack and said the 3rd iron core lamination is more than or equal to 400mm.
Aforesaid transformer core, preferably, the thickness of said second core lamination stack is more than or equal to 5mm.
Aforesaid transformer core, preferably, the width of said second core lamination stack is more than or equal to 390mm.
The utility model also provides a kind of transformer, comprises transformer core, it is characterized in that, said transformer core is for adopting aforesaid transformer core.
Aforesaid transformer, preferably, the capacity of said transformer is more than or equal to 6300kVA.
Transformer that the utility model provides and iron core thereof; The dry halfway defective of heat radiation oil duct not only can be avoided making in the traditional handicraft, the heat radiation requirement of transformer core self can also be satisfied, convenient and simple; Easy operating; Shorten the production cycle, can also improve the iron core filling rate, increased effective magnetic conductive area of iron core.
Description of drawings
Fig. 1 is the structural representation of the transformer core in the traditional handicraft;
The cross-sectional view of the transformer core of Fig. 2 A the utility model embodiment;
Fig. 2 B is the schematic cross-section of the transformer core of the utility model embodiment.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer; To combine the accompanying drawing among the utility model embodiment below; Technical scheme among the utility model embodiment is carried out clear, intactly description; Obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.Need to prove that accompanying drawing all adopts very the form of simplifying and all uses non-ratio accurately, only in order to convenient, the purpose of aid illustration the utility model embodiment clearly.
Embodiment one
Shown in Fig. 2 A, be the profile of the transformer core 200 of present embodiment, it has center pillar 211, side column 212, goes up yoke 213 and following yoke 214, the mutual alignment of these structures all with conventional art in identical, repeat no more at this.This transformer core is to be piled up by a plurality of core lamination stacks to form.
Shown in Fig. 2 B, the schematic cross-section of transformer core 200.Comprise adjacent successively first core lamination stack 201, second core lamination stack 202 and the 3rd iron core lamination 203; The width of second core lamination stack 202 is less than the width of first core lamination stack 201, and the width of second core lamination stack 202 is less than the width of the 3rd iron core lamination 203.The Width here refers to, and constitutes the direction of the Breadth Maximum in transformer core cross section.The Width of all core lamination stacks all is consistent.Shown in Fig. 2 A, these transformer core 200 cross sections are similar to circle, and this circular diameter is the width value of maximum core lamination stack, and the width of other lamination is all consistent with the Width of this maximum core lamination stack.The width of first core lamination stack 201 is L1, and the width of second core lamination stack 202 is L2, and the width of the 3rd iron core lamination 203 is L3, wherein, and L2＜L1 and L2＜L3.The width of first core lamination stack 201 and the 3rd iron core lamination 203 can equate, also can be unequal.
Preferably, the thickness D of second core lamination stack 202 is more than or equal to 5mm.The thickness direction here refers to direction vertical with the lamination width on transformer core 200 cross sections.
Transformer core 200 according to present embodiment; Through different with the width of the 3rd iron core lamination 203 at first core lamination stack 201, second core lamination stack 202 that stack gradually, constituted the heat radiation oil duct 204 that is positioned at transformer core 200 both sides, the framework through lamination constitutes heat radiation oil duct; Not only can avoid making in the traditional handicraft the dry halfway defective of heat radiation oil duct; Can also satisfy the heat radiation requirement of transformer core 200 self, convenient and simple, easy operating; Owing to cancelled the operation of traditional making heat radiation oil duct, therefore shortened the production cycle.And; Because the shared area of traditional oil duct has been removed in the cross section of this transformer core 200; But form heat radiation oil duct 204 with the form that core lamination stack piles up, and can also improve the filling rate of transformer core 200, increase effective magnetic conductive area of transformer core 200.
Shown in Fig. 2 A; For in the heat radiation oil duct in 204 cold oil flow to sketch map; Cold oil enters into heat radiation oil duct 204 from the bottom of this transformer core 200, and the cold oil of heat also makes progress away, enters at last among the device body of transformer; Again enter into heat radiation oil duct through cooling to form circulation again, form the heat radiation circulation.
Preferably, first core lamination stack 201, second core lamination stack 202 and the 3rd iron core lamination 203 have same symmetry axis on Width, can guarantee that like this volume of heat radiation oil duct 204 of these transformer core 200 both sides is consistent, and radiating effect is balanced.
Embodiment two
In the present embodiment, the transformer core among the embodiment one is improved.First core lamination stack is identical with the width of the 3rd iron core lamination, i.e. L1=L3, and second core lamination stack is positioned at the center of transformer core.That is, first core lamination stack and the 3rd iron core lamination are the maximum lamination of width in the transformer core, and formed heat radiation oil duct is positioned at the both sides of transformer core center, can guarantee that like this heat radiation oil duct takes away the heat of transformer core to greatest extent.In addition, the circumference that has also shortened first core lamination stack and the 3rd iron core lamination supports span, has improved the radial support strength of interior loop, makes the anti-short circuit capability of interior loop strong.
Give an example particularly; The width of first core lamination stack and the 3rd iron core lamination is more than or equal to 400mm; The width of second core lamination stack is more than or equal to 390mm, and thickness is more than or equal to 5mm, and this transformer core is applicable to that range of capacity is the transformer more than or equal to 6300kVA.
Embodiment three
Transformer core in the foregoing description is made improvement, and transformer core comprises a plurality of first core lamination stacks that stack gradually, second core lamination stack and the 3rd iron core lamination, forms a plurality of heat radiation oil ducts, strengthens radiating effect.
The utility model also provides a kind of transformer, adopts the transformer core that as above embodiment provided, and not only has heat radiation oil duct and can satisfy the cooling requirement of self; And the iron core filling rate of this transformer is high, and effectively magnetic conductive area is big, can improve the electromotive force of the every circle coil of this transformer; Reach the use amount that reduces the coil copper cash, indirectly, cause the volume of this transformer body also to reduce thereupon; Save cold oil and raw-material utilization rate, reduced production cost.
Alternatively, the capacity of this transformer is more than or equal to 6300kVA.
What should explain at last is: above embodiment is only in order to the technical scheme of explanation the utility model, but not to its restriction; Although the utility model has been carried out detailed explanation with reference to previous embodiment; Those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of each embodiment technical scheme of essence disengaging the utility model of relevant art scheme.
Claims (9)
1. transformer core; It is characterized in that; Comprise the first adjacent successively core lamination stack, second core lamination stack and the 3rd iron core lamination; The width of said second core lamination stack is less than the width of said first core lamination stack, and the width of said second core lamination stack is less than the width of said the 3rd iron core lamination.
2. transformer core according to claim 1 is characterized in that, said first core lamination stack, said second core lamination stack and said the 3rd iron core lamination have same symmetry axis on Width.
3. transformer core according to claim 1 and 2 is characterized in that, said first core lamination stack is identical with the width of said the 3rd iron core lamination.
4. transformer core according to claim 3 is characterized in that said second core lamination stack is positioned at the center of said transformer core.
5. transformer core according to claim 4 is characterized in that, the width of said first core lamination stack and said the 3rd iron core lamination is more than or equal to 400mm.
6. according to claim 1 or 5 described transformer cores, it is characterized in that the thickness of said second core lamination stack is more than or equal to 5mm.
7. transformer core according to claim 6 is characterized in that, the width of said second core lamination stack is more than or equal to 390mm.
8. a transformer comprises transformer core, it is characterized in that, said transformer core is for adopting according to each described transformer core in the claim 1～7.
9. transformer according to claim 8 is characterized in that, the capacity of said transformer is more than or equal to 6300kVA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206987673U CN202102842U (en) | 2010-12-30 | 2010-12-30 | Transformer and transformer core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206987673U CN202102842U (en) | 2010-12-30 | 2010-12-30 | Transformer and transformer core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202102842U true CN202102842U (en) | 2012-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206987673U Expired - Fee Related CN202102842U (en) | 2010-12-30 | 2010-12-30 | Transformer and transformer core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202102842U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107316735A (en) * | 2016-06-29 | 2017-11-03 | 施三武 | A kind of special distribution transformer of electric automobile |
| WO2020093589A1 (en) * | 2018-11-09 | 2020-05-14 | 王永法 | Transformer laminated core and preparation method therefor |
-
2010
- 2010-12-30 CN CN2010206987673U patent/CN202102842U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107316735A (en) * | 2016-06-29 | 2017-11-03 | 施三武 | A kind of special distribution transformer of electric automobile |
| WO2020093589A1 (en) * | 2018-11-09 | 2020-05-14 | 王永法 | Transformer laminated core and preparation method therefor |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20171230 |