CN208385164U - A kind of transformer iron-core structure and power transformer - Google Patents

A kind of transformer iron-core structure and power transformer Download PDF

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Publication number
CN208385164U
CN208385164U CN201721749553.2U CN201721749553U CN208385164U CN 208385164 U CN208385164 U CN 208385164U CN 201721749553 U CN201721749553 U CN 201721749553U CN 208385164 U CN208385164 U CN 208385164U
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CN
China
Prior art keywords
yoke column
column
stem
transformer
yoke
Prior art date
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Expired - Fee Related
Application number
CN201721749553.2U
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Chinese (zh)
Inventor
边庆凯
王维征
王奎生
王健
刘连兴
霍志辉
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Baoding Tianwei Group Co Ltd
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Baoding Tianwei Group Co Ltd
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Priority to CN201721749553.2U priority Critical patent/CN208385164U/en
Application granted granted Critical
Publication of CN208385164U publication Critical patent/CN208385164U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of transformer iron-core structure and power transformers, including stem, upper yoke column and lower yoke column, the upper yoke column and the lower yoke column dimension, structure are all the same, the sectional area of the upper yoke column is greater than the sectional area of the stem, the section of the stem is circle, and the section of the upper yoke column is forge piece of step type structure.The utility model is compact-sized, has not only been able to satisfy the loss parameter of transformer, but also can achieve the purpose that save cost, has wide applicability.

Description

A kind of transformer iron-core structure and power transformer
Technical field
The utility model relates to transformer technology fields, and in particular to a kind of transformer iron-core structure.
Background technique
Currently, three-phase three-column folds the iron core of appendiron core transformer, core mandrel section and yoke column section shape are generally used And the identical design of sectional area, generally use circular cross-section.Although such design makes transformer main flux in stem and yoke Distribution in column is identical, but since current user is to energy-efficient demand, it is desirable that transformer noload losses, load loss gets over Come lower, has to reach demand by reducing transformer core magnetic flux density in the design of transformer, so that becoming Depressor cost greatly improves.Given this problem studies a kind of novel transformer iron-core structure, so that being both able to satisfy transformer Parameter is lost, and can achieve the purpose that saving cost becomes an important content of transformer research.
Utility model content
The utility model aims to solve at least one of the problems of the prior art.
First purpose of the utility model is to propose a kind of transformer iron-core structure.
The transformer iron-core structure of embodiment according to the present utility model, including stem, upper yoke column and lower yoke column, it is described on Yoke column and the lower yoke column are separately positioned on the upper and lower ends of the stem, the upper yoke column and the lower yoke column dimension, structure All the same, the sectional area of the upper yoke column is greater than the sectional area of the stem, and the section of the stem is circle, the upper yoke column Section be forge piece of step type structure.
In addition, can also have following supplementary technology according to the transformer iron-core structure of the utility model above-described embodiment Feature:
One embodiment according to the present utility model, further includes pulling plate, upper clamping piece and lower clamping piece, and the upper clamping piece setting exists To clamp the upper yoke column, two sides is arranged before and after the lower yoke column to clamp in the lower clamping piece on two sides before and after the upper yoke column Lower yoke column is stated, the pulling plate is set to the front and back two sides of the stem, and stem binding strap binds the stem and the pulling plate Together, upper yoke yoke column binding strap binds the upper yoke column and the upper clamping piece together, and lower yoke yoke column binding strap will The lower yoke column and the lower clamping piece are bound together, by described between the stem, the upper yoke column and the lower yoke column Pulling plate, the upper yoke yoke column binding strap, the lower yoke yoke column binding strap, the upper clamping piece and lower clamping piece binding and folder Next formation tower structure.
One embodiment according to the present utility model, the section of the upper yoke column are symmetrically arranged forge piece of step type structure and rank The size of trapezoidal-structure is gradually reduced from inside to outside.
One embodiment according to the present utility model, the forge piece of step type structure are provided with two or more ladders.
One embodiment according to the present utility model further includes that the fagging of upper yoke column upper end is arranged in and is arranged in institute State the feet of lower yoke column lower end.
One embodiment according to the present utility model, there are three the stem settings and structure is identical.
One embodiment according to the present utility model, the stem spaced set.
One embodiment according to the present utility model, the transformer iron-core structure are symmetrical structure.
Second purpose of the utility model is to propose a kind of power transformer.
The power transformer of embodiment according to the present utility model, including transformer iron-core structure as described above.
Compared with the existing technology, the beneficial effects of the utility model are:
The stem of the transformer iron-core structure of the utility model is using circular cross-section, upper yoke column and lower yoke column using approximate square The stepped section of shape both can guarantee the damage of transformer by way of reducing stem area of section, increasing yoke column section area Consumption requires, and can reach the reduction of same design lower coil size, load loss and the synchronous reduced purpose of material utilization amount;By upper Core structure is fixed as the tower structure of uniform force by lower clamping piece, fagging, pulling plate, yoke column binding strap and stem binding strap; By using binding strap by yoke column, folder from top to bottom binding to structure together, make to clamp up and down on the basis of proof strength It is more uniform, achieve the purpose that reduce transformer noise.
The utility model is compact-sized, has not only been able to satisfy the loss parameter of transformer, but also can achieve the purpose that save cost, tool There is wide applicability.
Detailed description of the invention
Following drawings are only intended to schematically illustrate and explain the present invention, does not limit the model of the utility model It encloses.Wherein:
Fig. 1 is the schematic view of the front view of the transformer iron-core structure of the utility model embodiment;
Fig. 2 is the overlooking structure diagram of the transformer iron-core structure of the utility model embodiment;
Fig. 3 is the side structure schematic view of the transformer iron-core structure of the utility model embodiment;
Fig. 4 is the sectional view of the stem of the utility model embodiment;
Fig. 5 is the sectional view of the upper yoke column of the utility model embodiment.
In figure: 1- stem binding strap, 2- pulling plate, 3- fagging, 4- upper clamping piece, 5- upper yoke yoke column binding strap, 6- feet, 7- Lower yoke yoke column binding strap, 8- lower clamping piece, 9- stem, 10- upper yoke column, yoke column under 11-.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is further described.In the following detailed description, only pass through Bright mode describes certain exemplary embodiments of the utility model.Undoubtedly, those skilled in the art can be with It recognizes, it, can be with a variety of different modes to described without departing from the spirit and scope of the utility model Embodiment is modified.Therefore, attached drawing and description are regarded as illustrative in nature, rather than the protection for limiting claim Range.
Embodiment 1
As shown in Figures 1 to 5, according to the transformer iron-core structure of the utility model embodiment 1, including stem 9, upper yoke column 10 and lower yoke column 11, the upper yoke column 10 and the lower yoke column 11 are separately positioned on the upper and lower ends of the stem 9, the upper yoke Column 10 and lower 11 size of yoke column, structure are all the same, and the sectional area of the upper yoke column 10 is greater than the sectional area of the stem 9, The section of the stem 9 is circle, and the section of the upper yoke column 10 is forge piece of step type structure.
Using the utility model embodiment 1 transformer iron-core structure when, the stem 9 of transformer iron-core structure is using circle Tee section, upper yoke column 10 and lower yoke column 11 use approximate rectangular stepped section, by reducing 9 area of section of stem, increasing The mode of yoke column section area, not only can guarantee the loss requirement of transformer, but also can reach same design lower coil size and reduce, is negative Load-loss and the synchronous reduced purpose of material utilization amount.
Wherein, the stem 9 of transformer iron-core structure is not close by reducing the magnetic flux of stem 9 using conventional circular cross-section It spends to achieve the purpose that transformer noload losses reduction, on the contrary, 9 magnetic flux density of stem of transformer iron-core structure is appropriate to be mentioned Height reduces so as to reach coil diameter in the case of same design, and coil is reduced with electromagnetic wire weight and load loss reduces Purpose;The column of yoke up and down of transformer iron-core structure is identical and sectional area increases compared with 9 sectional area of stem, reduces yoke column up and down In magnetic flux density, made up by reducing the core loss in yoke column up and down since 9 magnetic flux density of stem increases to reach And increased core loss;Upper and lower yoke column no longer uses circular cross-section, and using forge piece of step type structure is the step for being similar to rectangle Section, to greatly reduce the height of yoke column on the basis of guaranteeing iron core yoke column section, reaching reduces transformer height simultaneously The purpose for improving the filling rate inside oil tank of transformer, saving oil tank of transformer innage.
It further, further include pulling plate 2, upper clamping piece 4 and lower clamping piece 8, the upper clamping piece 4 is arranged before the upper yoke column 10 To clamp the upper yoke column 10, the lower clamping piece 8 is arranged on the lower 11 front and back two sides of yoke column to clamp the lower yoke on two sides afterwards Column 11, the pulling plate 2 are set to the front and back two sides of the stem 9, and stem binding strap 1 binds the stem 9 and the pulling plate 2 Together, upper yoke yoke column binding strap 5 binds the upper yoke column 10 and the upper clamping piece 4 together, the binding of lower yoke yoke column Band 7 binds the lower yoke column 11 together with the lower clamping piece 8, the stem 9, the upper yoke column 10 and the lower yoke column Pass through the pulling plate 2, the upper yoke yoke column binding strap 5, the lower yoke yoke column binding strap 7,4 and of the upper clamping piece between 11 Tower structure is formed after the binding of lower clamping piece 8 and clamping.Pass through upper clamping piece 4, lower clamping piece 8, pulling plate 2, yoke column binding strap 5,7 Core structure is fixed as to the tower structure of uniform force with stem binding strap 1;By using binding strap by upper and lower yoke column, on Lower clamping piece binding makes clamping up and down more uniform on the basis of proof strength, reaches reduction transformer to structure together The purpose of noise.
Further, the section of the upper yoke column 10 be symmetrically arranged forge piece of step type structure and forge piece of step type structure size from It is gradually reduced from inside to outside.
Further, the forge piece of step type structure is provided with two or more ladders.Wherein, forge piece of step type structure may be used also It is set as two layers of step.
It further, further include that the fagging 3 of 10 upper end of upper yoke column is set and is arranged in lower 11 lower end of yoke column Feet 6.It can realize that upper yoke column 10 and the support of lower yoke column 11 are fixed respectively by setting fagging 3 and feet 6.
Further, there are three the stem 9 is arranged and structure is identical.When stem 9 setting there are three when, the transformer fe Cored structure is the transformer of three-limb core.
Further, 9 spaced set of stem.
Embodiment 2
According to the power transformer of the utility model embodiment 2, including transformer core knot provided by embodiment as above 1 Structure.
So set, the filling rate inside power transformer tank can be effectively improved, oil tank of transformer innage is saved, together When can reduce transformer height.
The utility model is compact-sized, has not only been able to satisfy the loss parameter of transformer, but also can achieve the purpose that save cost, tool There is wide applicability.
The above descriptions are merely exemplary embodiments of the present utility model, the model being not intended to limit the utility model It encloses.Any those skilled in the art, made equivalent change under the premise of not departing from the conceptions and principles of the utility model Change and modify, should belong to the range of the utility model protection.

Claims (9)

1. a kind of transformer iron-core structure, it is characterised in that: including stem, upper yoke column and lower yoke column, the upper yoke column and described Lower yoke column is separately positioned on the upper and lower ends of the stem, and the upper yoke column and the lower yoke column dimension, structure are all the same, described The sectional area of upper yoke column is greater than the sectional area of the stem, and the section of the stem is circle, and the section of the upper yoke column is rank Trapezoidal-structure.
2. transformer iron-core structure according to claim 1, it is characterised in that: it further include pulling plate, upper clamping piece and lower clamping piece, Two sides is arranged before and after the upper yoke column to clamp the upper yoke column in the upper clamping piece, and the lower clamping piece is arranged in the lower yoke column To clamp the lower yoke column, the pulling plate is set to the front and back two sides of the stem on front and back two sides, and stem binding strap is by the core Column and the pulling plate are bound together, and upper yoke yoke column binding strap binds the upper yoke column and the upper clamping piece together, under Iron yoke yoke column binding strap binds the lower yoke column and the lower clamping piece together, the stem, the upper yoke column and it is described under Pass through the pulling plate, the upper yoke yoke column binding strap, the lower yoke yoke column binding strap, the upper clamping piece and institute between yoke column It states lower clamping piece binding and forms tower structure after clamping.
3. transformer iron-core structure according to claim 1, it is characterised in that: the section of the upper yoke column is arranged symmetrically Forge piece of step type structure and the size of forge piece of step type structure be gradually reduced from inside to outside.
4. transformer iron-core structure according to claim 3, it is characterised in that: forge piece of step type structure setting there are two or More than two ladders.
5. transformer iron-core structure according to claim 1, it is characterised in that: further include being arranged in upper yoke column upper end Fagging and the feet of the lower yoke column lower end is set.
6. transformer iron-core structure according to claim 1, it is characterised in that: there are three the stem settings and structure phase Together.
7. transformer iron-core structure according to claim 6, it is characterised in that: the stem spaced set.
8. transformer iron-core structure according to claim 7, it is characterised in that: the transformer iron-core structure is symmetrical junction Structure.
9. a kind of power transformer, it is characterised in that: including transformer core knot according to claim 1 to 8 Structure.
CN201721749553.2U 2017-12-15 2017-12-15 A kind of transformer iron-core structure and power transformer Expired - Fee Related CN208385164U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721749553.2U CN208385164U (en) 2017-12-15 2017-12-15 A kind of transformer iron-core structure and power transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721749553.2U CN208385164U (en) 2017-12-15 2017-12-15 A kind of transformer iron-core structure and power transformer

Publications (1)

Publication Number Publication Date
CN208385164U true CN208385164U (en) 2019-01-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108257767A (en) * 2017-12-15 2018-07-06 保定保菱变压器有限公司 A kind of transformer iron-core structure and power transformer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108257767A (en) * 2017-12-15 2018-07-06 保定保菱变压器有限公司 A kind of transformer iron-core structure and power transformer

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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: 20190115

Termination date: 20191215