CN203673932U - Transformer core - Google Patents
Transformer core Download PDFInfo
- Publication number
- CN203673932U CN203673932U CN201420055639.5U CN201420055639U CN203673932U CN 203673932 U CN203673932 U CN 203673932U CN 201420055639 U CN201420055639 U CN 201420055639U CN 203673932 U CN203673932 U CN 203673932U
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- steel sheet
- silicon steel
- stem
- disc silicon
- transformer core
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Abstract
The utility model discloses a transformer core, relates to a transformer, and solves the problems that the manufacturing cost of an existing transformer core can be increased due to the increasing of core post using materials and not good clamping effect of ferric yokes, wherein the upper and lower ends of at least two core posts are respectively fixedly connected with corresponding ferric yokes; the bottom surface of a second multi-chip silicon steel sheet consists of a bottom plane and a bottom step plane, the bottom plane is located in the middle of the bottom surface of the second multi-chip silicon steel sheet, and the height of the bottom step plane is sequentially progressively increased from the middle part to two sides of the second multi-chip silicon steel sheet; the top surface of the second multi-chip silicon steel sheet is formed by sequentially arranging a first top plane, a bottom step surface and a second top plane, the first top plane is located in the middle of the top surface of the second multi-chip silicon steel sheet, and the height of the top step surface is sequentially progressively increased from the middle part to two sides of the second multi-chip silicon steel sheet. The transformer core provided by the utility model is used for the voltage change of a transformer.
Description
Technical field
The utility model relates to a kind of transformer.
Background technology
Transformer core is magnetic circuit and the skeleton of transformer, and iron core is formed by silicon steel sheet stack, and securing bracket unshakable in one's determination tightens together electrical steel sheet, forms complete and firmly unshakable in one's determination.Iron core is mainly made up of stem and iron yoke, and to have the iron core of winding be stem to cover, and not being set with winding and connecting the iron core that stem forms closed magnetic circuit is iron yoke.
Iron yoke shape of cross section of the prior art mainly comprises D shape and ellipse.
The iron yoke of D shape cross section differs larger because the silicon steel sheet sheet of main iron core is wide with silicon steel sheet sheet final stage iron core is wide, and be positioned at the below of D shape cross section for stepping up the clamping device stress point of securing bracket unshakable in one's determination of iron yoke, not in the center of D shape cross section, see Fig. 6, the clamping force slightly silicon steel sheet of ambassador's yoke heart is outwards extruded, clamping force is smaller, and the noise producing when work unshakable in one's determination increases, so it is bad to clamp effect.Although the clamping stress point of oval cross section iron yoke is silicon steel sheets at different levels centers, see Fig. 7, and be convenient to clamp, but when iron yoke and stem assembling, require the center line 7 of iron yoke silicon steel sheet length direction accurately to dock with the center line 6 of stem silicon steel sheet length direction, the use quantity of material of stem is increased, thereby manufacturing cost is increased, make the loss of silicon steel sheet increase simultaneously.
Utility model content
The purpose of this utility model is to provide a kind of transformer core, use material to increase, and the clamping effect of iron yoke is bad to solve the stem of existing transformer core, thus the problem that transformer core manufacturing cost is increased.
The utility model is to address the above problem the technical scheme of taking to be: described transformer core of the present utility model comprises at least two stems and even number iron yoke, each stem is formed by stacking by multi-disc silicon steel sheet one, each iron yoke is formed by stacking by multi-disc silicon steel sheet two, be superimposed as the vertical setting of multi-disc silicon steel sheet one of stem, stem horizontal cross sectional geometry is oval, and the top and bottom of at least two stems are affixed with corresponding iron yoke respectively;
The bottom surface of multi-disc silicon steel sheet two is made up of baseplane and bottom cascaded surface, and baseplane is positioned at the middle part, bottom surface of multi-disc silicon steel sheet two, and bottom cascaded surface is increased progressively to both sides height successively by the middle part of multi-disc silicon steel sheet two,
The end face of multi-disc silicon steel sheet two is arranged in order and is formed by top plane one, bottom cascaded surface and top plane two, and top plane one is positioned at the middle part of multi-disc silicon steel sheet two end faces, and top cascaded surface is successively decreased to both sides height successively by the middle part of multi-disc silicon steel sheet two.
The utility model compared with prior art has following beneficial effect:
The stem of the utility model transformer core has been saved use material, and iron yoke clamping is effective, transformer core low cost of manufacture.
While applying clamping force to iron yoke 2, make the multi-disc silicon steel sheet two that forms iron yoke 2 produce the trend moving to stem 1 direction, thereby make the fixing more firm of stem 1, and the multi-disc silicon steel sheet two of composition iron yoke 2 center line 7 is along its length drawn close to stem 1, make the contraction in length of the multi-disc silicon steel sheet one that forms stem 1, thereby saved the material of stem 1.
Transformer core of the present utility model is guaranteeing under the prerequisite that the assembly technology unshakable in one's determination of prior art is substantially constant, make the constant work time cost that does not increase again lamination processing of structure of magnetic circuit, reduce the use quantity of material of stem, both improved clamping quality unshakable in one's determination, make clamping device and the mutual stress equalization of supporting accessory thereof, the noise having produced while having reduced again work unshakable in one's determination has also improved no-load performance unshakable in one's determination simultaneously, has more reduced manufacturing cost unshakable in one's determination.According to statistics, the relative prior art of materials'use amount of manufacturing transformer core of the present utility model reduces by 1.5%～3%.
Accompanying drawing explanation
Fig. 1 is the axonometric drawing after transformer core assembling of the present utility model, Fig. 2 is transformer core front view of the present utility model, Fig. 3 is the B-B cutaway view of Fig. 2, Fig. 4 is the A-A cutaway view of Fig. 2, Fig. 5 is iron yoke cross section clamping schematic diagram of the present utility model, Fig. 6 is D shape iron yoke cross section clamping schematic diagram in prior art, and Fig. 7 is oval iron yoke cross section clamping schematic diagram in prior art.
Embodiment
Embodiment one: illustrate in conjunction with Fig. 1 to Fig. 5, the described transformer core of present embodiment comprises at least two stems 1 and even number iron yoke 2, each stem 1 is formed by stacking by multi-disc silicon steel sheet one, each iron yoke 2 is formed by stacking by multi-disc silicon steel sheet two, be superimposed as the vertical setting of multi-disc silicon steel sheet one of stem 1, stem 1 horizontal cross sectional geometry is oval, and the top and bottom of at least two stems 1 are affixed with corresponding iron yoke 2 respectively;
The bottom surface of multi-disc silicon steel sheet two is made up of baseplane 2-1 and bottom cascaded surface 2-2, and baseplane 2-1 is positioned at the middle part, bottom surface of multi-disc silicon steel sheet two, and bottom cascaded surface 2-2 is increased progressively to both sides height successively by the middle part of multi-disc silicon steel sheet two,
The end face of multi-disc silicon steel sheet two is arranged in order and is formed by top plane one 2-3, bottom cascaded surface 2-4 and top plane two 2-5, plane one 2-3 in top is positioned at the middle part of multi-disc silicon steel sheet two end faces, and top cascaded surface 2-4 is successively decreased to both sides height successively by the middle part of multi-disc silicon steel sheet two.
Embodiment two: in conjunction with Fig. 4 and Fig. 5 explanation, the quantity of the stem 1 of present embodiment is three, and the quantity of iron yoke 2 is two.Highly versatile, meets design and use requirement.In present embodiment, undocumented technical characterictic is identical with embodiment one.
Embodiment three: in conjunction with Fig. 2 and Fig. 4 explanation, three stems 1 and two iron yoke 2 junctions of present embodiment are all affixed by securing bracket 4 unshakable in one's determination and several threaded connectors 5.Meet design and use requirement.In present embodiment, undocumented technical characterictic is identical with embodiment two.
Operation principle
While applying clamping force to iron yoke 2, make the multi-disc silicon steel sheet two that forms iron yoke 2 produce the trend moving to stem 1 direction, thereby make the fixing more firm of stem 1, and the multi-disc silicon steel sheet two of composition iron yoke 2 center line 7 is along its length drawn close to stem 1, make the contraction in length of the multi-disc silicon steel sheet one that forms stem 1, thereby saved the material of stem 1.
Claims (3)
1. a transformer core, described transformer core comprises at least two stems (1) and even number iron yoke (2), each stem (1) is formed by stacking by multi-disc silicon steel sheet one, each iron yoke (2) is formed by stacking by multi-disc silicon steel sheet two, be superimposed as the vertical setting of multi-disc silicon steel sheet one of stem (1), stem (1) horizontal cross sectional geometry is oval, and the top and bottom of at least two stems (1) are affixed with corresponding iron yoke (2) respectively;
It is characterized in that:
The bottom surface of multi-disc silicon steel sheet two is made up of baseplane (2-1) and bottom cascaded surface (2-2), and baseplane (2-1) is positioned at the middle part, bottom surface of multi-disc silicon steel sheet two, and bottom cascaded surface (2-2) is increased progressively to both sides height successively by the middle part of multi-disc silicon steel sheet two,
The end face of multi-disc silicon steel sheet two is arranged in order formation by top plane one (2-3), bottom cascaded surface (2-4) and top plane two (2-5), top plane one (2-3) is positioned at the middle part of multi-disc silicon steel sheet two end faces, and top cascaded surface (2-4) is successively decreased to both sides height successively by the middle part of multi-disc silicon steel sheet two.
2. transformer core according to claim 1, is characterized in that: the quantity of stem (1) is three, and the quantity of iron yoke (2) is two.
3. transformer core according to claim 2, is characterized in that: three stems (1) are all affixed by securing bracket unshakable in one's determination (4) and several threaded connectors (5) with two iron yokes (2) junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420055639.5U CN203673932U (en) | 2014-01-28 | 2014-01-28 | Transformer core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420055639.5U CN203673932U (en) | 2014-01-28 | 2014-01-28 | Transformer core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203673932U true CN203673932U (en) | 2014-06-25 |
Family
ID=50970199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420055639.5U Expired - Fee Related CN203673932U (en) | 2014-01-28 | 2014-01-28 | Transformer core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203673932U (en) |
Cited By (3)
| 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 |
| CN104616877A (en) * | 2014-12-16 | 2015-05-13 | 芜湖金牛电气股份有限公司 | Method for assembling transformer |
| CN110349731A (en) * | 2019-06-04 | 2019-10-18 | 吴江变压器有限公司 | A kind of core construction of iron-core reactor |
-
2014
- 2014-01-28 CN CN201420055639.5U patent/CN203673932U/en not_active Expired - Fee Related
Cited By (4)
| 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 |
| CN104616877A (en) * | 2014-12-16 | 2015-05-13 | 芜湖金牛电气股份有限公司 | Method for assembling transformer |
| CN110349731A (en) * | 2019-06-04 | 2019-10-18 | 吴江变压器有限公司 | A kind of core construction of iron-core reactor |
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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: 20140625 Termination date: 20150128 |
|
| EXPY | Termination of patent right or utility model |