CN106782992B - A kind of locomotive transformer and its air gap iron-core - Google Patents
A kind of locomotive transformer and its air gap iron-core Download PDFInfo
- Publication number
- CN106782992B CN106782992B CN201710112963.4A CN201710112963A CN106782992B CN 106782992 B CN106782992 B CN 106782992B CN 201710112963 A CN201710112963 A CN 201710112963A CN 106782992 B CN106782992 B CN 106782992B
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- China
- Prior art keywords
- upper yoke
- core
- air gap
- block
- core limb
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
- H01F3/14—Constrictions; Gaps, e.g. air-gaps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/266—Fastening or mounting the core on casing or support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
The invention discloses a kind of air gap iron-cores for locomotive transformer, including core limb and the upper yoke above the core limb, and air gap is equipped between the core limb and the upper yoke；Further include being located at the fixed folder in the upper yoke both sides and position, the block to be fitted closely with the end of the upper yoke is equipped between two folders, and the block is additionally provided with the lower edge to be aligned and be bonded with the end face of the core limb, further includes to the secure component of fixation block position between the folder, the core limb and the upper yoke.The invention also discloses a kind of locomotive transformers including above-mentioned air gap iron-core.Above-mentioned air gap iron-core avoids upper yoke that position movement occurs with core limb, is conducive to prevent upper yoke from misplacing with core limb, and then ensure locomotive transformer normal operation.
Description
Technical field
The present invention relates to locomotive transformer technical field, more particularly to a kind of air gap iron-core.The invention further relates to a kind of tools
There is the locomotive transformer of the air gap iron-core.
Background technology
The locomotive transformer used in rolling stock auxiliary system, usually provides power supply by PWMI inverters, and PWMI is carried
In the power supply of confession, containing a series of higher hamonic wave, when higher hamonic wave generation high order magnetic flux circulates in iron core, it will generate larger
Harmonic loss and loud noise.To inhibit influence of the higher hamonic wave to locomotive transformer, a gas is set usually in iron core
Gap, because air-gap reluctance is big so that most of higher hamonic wave magnetic flux drops on air gap, to reduce higher hamonic wave magnetic flux in iron core
In influence；Simultaneously for convenience of manufacturing, air gap is normally placed between upper yoke and stem in iron core, so that upper yoke and the heart
Post separation, upper yoke become an independent sector.
Invention content
The object of the present invention is to provide a kind of air gap iron-core, which can solve upper yoke and be moved with core limb
Dynamic problem.It is a further object of the present invention to provide a kind of locomotive transformers including above-mentioned air gap iron-core.
To achieve the above object, the present invention provides a kind of air gap iron-core for locomotive transformer, including core limb and
Upper yoke above the core limb is equipped with air gap between the core limb and the upper yoke；Further include positioned at described
The fixed folder in upper yoke both sides and position is equipped with closely to be pasted with the end of the upper yoke between two folders
The block of conjunction, and the block is additionally provided with the lower edge to be aligned and be bonded with the end face of the core limb, further includes to solid
The secure component of fixed block position between the folder, the core limb and the upper yoke.
Relative to above-mentioned background technology, air gap iron-core provided by the invention, since upper yoke is as an independent sector,
In assembling process, there are certain difficulty when the end face of upper yoke is aligned with the end face of core limb；The present invention is pasted respectively using block
The end of iron yoke and the end face of core limb are closed, and the different location of block is fitted closely with upper yoke and core limb respectively, into
And realize that the relative position between upper yoke and core limb immobilizes, to ensure the end face of upper yoke and the end face pair of core limb
Together, and locomotive transformer at runtime, block remains able to be bonded upper yoke and core limb respectively, avoids upper yoke and iron core
Position movement occurs for column, is conducive to prevent upper yoke from misplacing with core limb, and then ensure locomotive transformer normal operation.
Preferably, the secure component specifically includes：
With the mounting plate of folder welding, the mounting plate is located between two folders；
Set on two corresponding mounting plates and to realize that the drawing spiral shell of the upper yoke is clamped in two folders
Bar；
Set on the bolt of the mounting plate, the end of the bolt passes through the mounting plate and offsets with the block, with
Realize that the block is fitted closely in the end of the upper yoke.
Preferably, the block includes the medial surface to be fitted closely with the stepped end of the upper yoke, is also wrapped
Include the lateral surface to offset with the bolt.
Preferably, the drawing screw rod is detachably connected with the folder, and the bolt is detachably connected with mounting plate.
Preferably, two folders are parallel to the both sides of the upper yoke, and the length of the folder is more than on described
The length of iron yoke.
Preferably, the material of the block is dielectric resilience material.
The present invention also provides a kind of locomotive transformers, including air gap iron-core described in any one of the above embodiments.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
The schematic diagram in the folded thick direction for the air gap iron-core that Fig. 1 is provided by the embodiment of the present invention；
Fig. 2 is the length of air gap iron-core and the schematic diagram of short transverse in Fig. 1.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to make those skilled in the art more fully understand the present invention program, below in conjunction with the accompanying drawings and it is embodied
The present invention is described in further detail for mode.
It please refers to Fig.1 and the schematic diagram in the folded thick direction of air gap iron-core that Fig. 2, Fig. 1 are provided by the embodiment of the present invention；Figure
2 be the length of air gap iron-core and the schematic diagram of short transverse in Fig. 1.
A kind of air gap iron-core for locomotive transformer provided by the invention, it is main as shown in Figure of description 1 and attached drawing 2
To include core limb 1 and upper yoke 2, upper yoke 2 is located at the top of core limb 1, and gas is equipped between core limb 1 and upper yoke 2
Gap 9.
For in the present invention, there are gap structures between core limb 1 and upper yoke 2 so that upper yoke 2 and 1 end of core limb
The problems such as face is not easy to be aligned, and upper yoke 2 can misplace with core limb 1 in the process of running.Usually for convenience of manufacture, air gap
9 be arranged between upper yoke 2 and core limb 1, upper yoke 2 is detached with core limb 1, upper yoke 2 become one it is independent
Part.
Air gap iron-core provided by the invention further includes the folder 3 positioned at 2 both sides of upper yoke, and two 3 positions of folder are fixed.
Block 4 is also connected between two folders 3, block 4 immobilizes relative to the position relationship of two folders 3, and block 4 and upper iron
The end of yoke 2 fits closely.
Block 4 is aligned with the end face of core limb 1 and fits in the lower edge of block 4；That is, block 4 is by upper yoke 2 and core limb
1 relative position is fixed, to ensure that it is reliable that the position relationship between upper yoke 2 and core limb 1 is fixed；At the same time, by tight
Gu block 4 is detachably secured to folder 3 by component；That is, the opposite position of folder 3, block 4, upper yoke 2 and core limb 1 four
It sets and immobilizes；So set, in air gap iron-core assembling process, 2 end face of upper yoke can be with the end face pair of core limb 1
Together.In addition to this, in locomotive transformer operational process, using folder 3 and block 4 can limit upper yoke 2 and core limb 1 because
The dislocation generated is vibrated, to ensure the normal operation of locomotive transformer.
For the specific set-up mode of secure component above, it may include mounting plate 5, draw screw rod 6 and bolt 7；Mounting plate 5
It is welded in folder 3；Every piece of folder 3 at least welds four pieces of mounting plates 5, and two pieces of mounting plates 5 therein are located at the one of upper yoke 2
End, in addition two pieces of mounting plates 5 are located at the other end of upper yoke 2；Corresponding four pieces of mounting plates 5 are set in two pieces of different folders 3
It sets and draws screw rod 6, two pieces of folders 3 are tensed using the drawing screw rod 6 at 2 both ends of upper yoke, are located at the both sides of upper yoke 2.
Mounting plate 5 positioned at 2 outermost end of upper yoke is stretched out in bending-like as shown in Figure of description 2 outward.Spiral shell
Bolt 7 passes through two pieces of mounting plates 5 on same folder 3, and offsets with block 4, to ensure that block 4 is fitted closely in upper yoke 2
End.
After the end of bolt 7 passes through mounting plate 5, it is in direct contact with block 4；When bolt 7 is along the length side of air gap iron-core
To towards when the precession of inside, bolt 7 can hold out against block 4, and then ensure fitting closely for block 4 and upper yoke 2, and keep off
The lower edge of block 4 is aligned with the end face of core limb 1, it is ensured that core limb 1 and the relative position of upper yoke 2 are fixed.
Screw rod 6 is drawn to be detachably connected with mounting plate 5, and bolt 7 is detachably connected with mounting plate 5；That is, drawing screw rod 6 can be with
It is unloaded from mounting plate 5, bolt 7 can equally be unloaded from mounting plate 5, to replace or safeguard block 4；Certainly, the both sides of block 4
It can be held between two pieces of folders 3, when two pieces of not pulling force of tension screw rod 6 of folder 3, two pieces of folders 3 detach, and block 4 exists
Do not have to realize separation under the action of bolt 7 yet；In above-mentioned all parts, other than mounting plate 5 and folder 3 weld, remaining is each
A component is detachable setting, facilitates repair and replaces, and improves overhaul efficiency.
For block 4 comprising the stepped end of medial surface and lateral surface, the medial surface and upper yoke 2 of block 4 is close
Fitting；The lateral surface of block 4 and the end of bolt 7 offset；The medial surface of block 4 is in order to realize the stepped end with upper yoke 2
Portion fits closely, it is preferably provided as ladder-like, as shown in Figure of description 1.And the lateral surface of block 4 is generally planar, that is, keeps off
The lateral surface of block 4 is vertical with the length direction of upper yoke 2.
In order to further increase the effect of block 4, range sensor can be set at air gap 9, with detect core limb 1 with
The distance between upper yoke 2；It, can be real using range sensor either in assembly or in locomotive transformer operational process
The size of Shi Zhixiao air gaps 9, to adjust the position relationship of block 4 and/or core limb 1 and upper yoke 2 in time.
Range sensor can also connect warning device；When to detect that the size of air gap 9 is not met default for range sensor
It when value, can be alarmed by warning device, to prompt operating personnel's maintenance down in time.
For bolt 7, graduated scale can be equipped on the shaft of bolt 7；When bolt 7 is along the length direction of air gap iron-core
Towards when the precession of inside, the displacement distance of bolt 7 is understand that by the graduated scale on shaft, to know the stress of block 4
Degree, to judge whether to need in time to continue screwing bolts 7；So set, simplifying assembling process, and improve assembly effect
Rate.
Two folders 3 are parallel to the both sides of upper yoke 2, and the length of folder 3 is more than the length of upper yoke 2, such as specification
Shown in attached drawing 1.As can be seen that using folder 3 as benchmark, mounting plate 5 is set on the benchmark, draws screw rod 6, bolt 7 and gear
Block 4, and the length of folder 3 is more than the length of upper yoke 2；Since the length of folder 3 is longer, facilitate installation, is conducive to adjust
Efficiency of assembling is improved in the position of block 4.
In the present invention, the material of block 4 is preferably high density dielectric resilience material, to ensure insulation effect.
A kind of locomotive transformer with air gap iron-core provided by the present invention, including described in above-mentioned specific embodiment
Air gap iron-core；The other parts of locomotive transformer are referred to the prior art, not reinflated herein.
It should be noted that in the present specification, such as first and second etc relational terms are used merely to one
Entity is distinguished with other several entities, and without necessarily requiring or implying between these entities, there are any this actual
Relationship or sequence.
Locomotive transformer provided by the present invention and its air gap iron-core are described in detail above.It is used herein
Principle and implementation of the present invention are described for specific case, and the explanation of above example is only intended to help to understand this
The method and its core concept of invention.It should be pointed out that for those skilled in the art, not departing from this hair
, can be with several improvements and modifications are made to the present invention under the premise of bright principle, these improvement and modification also fall into power of the present invention
In the protection domain that profit requires.
Claims (5)
1. a kind of air gap iron-core for locomotive transformer, including core limb and the upper yoke above the core limb,
Air gap is equipped between the core limb and the upper yoke；It is characterized in that, further including being located at the upper yoke both sides and position
Fixed folder is equipped with the block to be fitted closely with the end of the upper yoke, and the gear between two folders
Block is additionally provided with the lower edge to be aligned and be bonded with the end face of the core limb, further includes to the fixation block relative to institute
State the secure component of position between folder, the core limb and the upper yoke；
The secure component specifically includes：
With the mounting plate of folder welding, the mounting plate is located between two folders；
Set on two corresponding mounting plates and to realize that the drawing screw rod of the upper yoke is clamped in two folders；
Set on the bolt of the mounting plate, the end of the bolt passes through the mounting plate and offsets with the block, to realize
The block is fitted closely in the end of the upper yoke；
The block includes the medial surface to be fitted closely with the stepped end of the upper yoke, further include to it is described
The lateral surface that bolt offsets.
2. air gap iron-core according to claim 1, which is characterized in that the drawing screw rod is detachably connected with the folder,
The bolt is detachably connected with mounting plate.
3. air gap iron-core according to claim 1 or 2, which is characterized in that two folders are parallel to the upper yoke
Both sides, and the length of the folder be more than the upper yoke length.
4. air gap iron-core according to claim 1 or 2, which is characterized in that the material of the block is dielectric resilience material.
5. a kind of locomotive transformer, which is characterized in that including such as Claims 1-4 any one of them air gap iron-core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710112963.4A CN106782992B (en) | 2017-02-28 | 2017-02-28 | A kind of locomotive transformer and its air gap iron-core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710112963.4A CN106782992B (en) | 2017-02-28 | 2017-02-28 | A kind of locomotive transformer and its air gap iron-core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106782992A CN106782992A (en) | 2017-05-31 |
| CN106782992B true CN106782992B (en) | 2018-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710112963.4A Active CN106782992B (en) | 2017-02-28 | 2017-02-28 | A kind of locomotive transformer and its air gap iron-core |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108666108B (en) * | 2018-06-25 | 2024-02-20 | 河南森源电气股份有限公司 | Dry type iron core reactor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201741549U (en) * | 2010-05-17 | 2011-02-09 | 常州市默顿电气有限公司 | Reactor |
| CN202172004U (en) * | 2011-06-23 | 2012-03-21 | 天津市天变航博电气发展有限公司 | Reactor for active power filter |
| CN203941783U (en) * | 2014-06-09 | 2014-11-12 | 长沙长源变压器有限公司 | A kind of Novel electric locomotive filter reactor structure |
| CN204992568U (en) * | 2015-07-21 | 2016-01-20 | 重庆市亚东亚集团变压器有限公司 | Low -voltage arc suppressing coil |
| CN106057441A (en) * | 2016-08-18 | 2016-10-26 | 吴江变压器有限公司 | Oil-immersed transformer body reinforcement structure capable of enhancing short-circuit withstand ability |
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| CN106782992A (en) | 2017-05-31 |
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