CN104637657B - Magnetic shield heat dissipation structure - Google Patents
Magnetic shield heat dissipation structure Download PDFInfo
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- CN104637657B CN104637657B CN201510106773.2A CN201510106773A CN104637657B CN 104637657 B CN104637657 B CN 104637657B CN 201510106773 A CN201510106773 A CN 201510106773A CN 104637657 B CN104637657 B CN 104637657B
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- oil
- cushion block
- magnetic screen
- iron yoke
- oil guide
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Abstract
The invention relates to the field of manufacturing of transformers, and in particular relates to a novel magnetic shield heat dissipation structure. According to the structure, an oil way insulating plate for providing a transformer oil passage is arranged at each of the upper side and the lower side of magnetic shield, a first oil guide heat dissipation hole is formed in a position, corresponding to an end part of the magnetic shield, of each oil way insulating plate; a second oil guide heat dissipation hole is formed in a position, corresponding to the first oil guide heat dissipation hole, of each of an iron yoke cushion block and a cover; a conduction groove for communicating the oil guide heat dissipation holes at upper and lower sides of the magnetic shield is formed in the position of the iron yoke cushion block at the end part of the magnetic shield; a first oil guide groove is formed between the second oil guide heat dissipation hole and the side edge of the iron yoke cushion block where the second oil guide heat dissipation hole is formed; and at least two oil guide grooves are formed in a side, in contact with an iron yoke, of the iron yoke cushion block or a cover. According to the novel magnetic shield heat dissipation structure provided by the invention, the magnetic shield surface, an end part and an iron yoke contact side are all provided with the transformer oil passages, so that while the magnetic shield is subjected to heat dissipation integrally, and the local parts of the magnetic shield are also subjected to heat dissipation, thereby fully ensuring the heat dissipation effect of the magnetic shield.
Description
Technical field
A kind of the present invention relates to transformer manufacture technology, more particularly to magnetic screen radiator structure.
Background technology
In Large Copacity ultrahigh-voltage alternating-current transformer and converter power transformer, during design, often single-column capacity requirement is larger, this
When stray transformer flux phenomenon substantially project.In existing machine body structure design, generally increase the measure of magnetic screen using end, change
The distribution of kind leakage field, to reduce the purpose of stray loss.Magnetic screen is generally made up of the silicon steel sheet of high permeability, because iron
The characteristic of magnetic material silicon steel sheet will produce certain loss, and loss is converted into heat and is dispersed into surrounding, and this is accomplished by by following
The transformer oil of ring takes away the heat that loss is produced, it is ensured that the electrical resistance of dielectric insulator segments carrying out radiating treatment to magnetic screen
Energy.Further, since the structure plays the part that mainly magnetic screen is contacted with iron yoke of magnetic conduction effect, and away from the magnetic of iron yoke
The concentration of local of leakage field will be caused in the end of shielding, produce local hot spot, and this phenomenon is with transformer single-column capacity
Increase and all the more substantially, how to carry out radiating treatment to the position is also a technological difficulties problem.
The content of the invention
For problem above, the invention provides a kind of radiator structure for being applied to the magnetic screen of transformer body end, protects
Card magnetic screen radiating is good, insulating part will not be caused to damage due to the hot-spot of magnetic screen, so that affecting the entirety of transformer
Performance.
For reaching above-mentioned purpose, the technical solution used in the present invention is：
A kind of magnetic screen radiator structure, including the magnetic screen being embedded in iron yoke cushion block, is provided with for close on the upside of magnetic screen
The lid of envelope, iron yoke cushion block side are provided with iron yoke, and the upper and lower both sides of the magnetic screen are respectively provided with one for providing transformer oil path
Oil duct insulation board, oil duct insulation board correspondence magnetic screen end position are equipped with the first Oil Guide louvre, iron yoke cushion block and Gai Yu
The Oil Guide louvre corresponding position is provided with the second Oil Guide louvre, is communicated with magnetic screen at the iron yoke cushion block of magnetic screen end
The conduction trough of upper and lower sides Oil Guide louvre, is provided with first between the second Oil Guide louvre and the iron yoke cushion block lateral edges residing for which and leads
Oil groove, the first oil guide groove are located at the outer surface of iron yoke cushion block or lid；Iron yoke cushion block or lid are provided with least twice with iron yoke contact side
Second oil guide groove, second oil guide groove one end extend to iron yoke cushion block edge.
The present invention is respectively provided with oil duct insulation board in magnetic screen upper and lower sides, there is provided transformer oil path, using transformer oil pair
Radiated on magnetic screen surface；Meanwhile, conduction trough is set in magnetic screen end also, while connection upper and lower sides oil circuit, will also be become
Depressor oil causes magnetic screen end, reduces the hot-spot of magnetic screen end, and utilize Oil Guide louvre and the first oil guide groove with
Transformer body forms the path of oil, realizes the circulation of transformer oil.In addition, present invention is alternatively directed to magnetic screen is connect with iron yoke
Tactile side hot-spot for occurring because magnetic conduction is acted on, also in iron yoke cushion block or covers the second oil guide groove of setting, introducing transformer oil,
Reduce the hot-spot of magnetic screen permeable section.
Further, described oil duct insulation board include insulation board and on insulation board interleaved arrange oil channel cushion block,
Oil channel cushion block wherein above and below magnetic screen is respectively positioned on below insulation board, on the insulation board below magnetic screen with oil duct pad
The corresponding position in gap of block is provided with oil guiding hole.During installation, need to be close by the insulation board in the oil duct insulation board below magnetic screen
Magnetic screen, it is interval setting to prevent because of oil channel cushion block, and it is uneven to cause magnetic screen edge silicon steel sheet to drop.In this case, it is
Transformer oil is enabled to touch magnetic screen, it is necessary to open some oil guiding holes on insulation board, penetrate into magnetic screen from oil guiding hole
Radiated on surface.For ensureing radiating effect, oil guiding hole need to avoid oil channel cushion block.
For guaranteeing that magnetic screen is placed firmly and has great heat radiation effect, it is preferred that the spacing of the oil channel cushion block is 30mm.
Preferably, a diameter of 30mm of the oil guiding hole.
Preferably, a diameter of 60mm of the Oil Guide louvre.Oil Guide louvre need to avoid oil channel cushion block, during processing, first
The perforate on insulation board, then bonding oil channel cushion block, avoid Oil Guide radiating hole site during bonding.
The present invention is directed to magnetic screen surface, end and is provided with transformer oil path with iron yoke contact side, to magnetic screen
While entirety is radiated, also radiated particular for the local of magnetic screen, fully ensured that the radiating effect of magnetic screen.
Description of the drawings
Fig. 1 is device body broken section structural representation；
Fig. 2 is the front view of oil duct insulation board on the upside of magnetic screen；
Fig. 3 is the front view of oil duct insulation board on the downside of magnetic screen；
Fig. 4 is the top view of iron yoke cushion block in side with device；
Fig. 5 is the left view of Fig. 4；
Fig. 6 is the upward view of Fig. 4；
Fig. 7 is transformer oil path schematic diagram around magnetic screen；
In figure, 1, iron yoke, 2, device body, 3, lid, 4, magnetic screen, 5, iron yoke, 6, insulation board, 7, oil channel cushion block, 8, first leads
Oily louvre, 9, oil guiding hole, the 10, second oil guide groove, 11, conduction trough, the 12, first oil guide groove, the 13, second Oil Guide louvre.
Specific embodiment
A kind of magnetic screen radiator structure, as illustrated, including the iron yoke cushion block 5 for being arranged on 2 two ends of device body, iron yoke cushion block 5
In be inlaid with least one magnetic screen 4, be provided with the lid 3 for sealing on the upside of magnetic screen 4,5 side of iron yoke cushion block is provided with iron yoke 1.
The magnetic screen is respectively provided with an oil duct insulation board in both sides about 4, and described oil duct insulation board is by 1mm insulation boards 6 and some 4mm bars
Shape oil channel cushion block 7 is bonded, and the interleaved on insulation board 6 of oil channel cushion block 7 is arranged, and the spacing of adjacent oil channel cushion block is
Oil channel cushion block above and below 30mm, wherein magnetic screen is respectively positioned on below insulation board, uniform on the insulation board below magnetic screen
Open the oil guiding hole 9 of some a diameter of 30mm, oil guiding hole 9 is located in the gap of oil channel cushion block, avoids oil channel cushion block.Above structure
Can ensure that magnetic screen upper and lower surfaces form the path of transformer oil, magnetic screen surface is radiated.
Oil duct insulation board correspondence magnetic screen end position is equipped with two the first Oil Guide louvres 8, iron yoke cushion block and covers
Two the second Oil Guide louvres 13 are provided with the Oil Guide louvre corresponding position, the diameter of all Oil Guide louvres is
60mm.Iron yoke cushion block is not shielded and is provided with the wide 50mm of twice, the conduction trough 11 of depth 10mm at about the 1/3 and 2/3 of pillar side,
If two conduction troughs are smaller than 50mm, retain one conduction trough.The conduction trough is insulated with oil duct as far as possible close to magnetic screen end face
30mm width oil duct correspondence on plate, conduction trough is by the oil communication of magnetic screen top and bottom.Second Oil Guide louvre 13 with residing for which
Iron yoke cushion block lateral edges between be provided with the first deep oil guide grooves 12 of 10mm, the first oil guide groove 12 is located at the outer of iron yoke cushion block or lid
Surface, causes the oil circuit connection of the oil circuit around magnetic screen and transformer body by the oil guide groove.The part-structure is in magnetic cup
Cover end and oil circuit is set, magnetic screen end is radiated.
In iron yoke cushion block or cover the side that contacts with iron yoke 1 of correspondence and be provided with the second wide oil guide grooves 10 of four road 60mm,
Second oil guide groove, 10 one end extends to iron yoke cushion block edge.The part-structure arranges oil circuit in magnetic screen and iron yoke contact side, right
Magnetic screen permeable section radiates.
A kind of new magnetic screen radiator structure, as illustrated, including the iron yoke cushion block 5 for being arranged on 2 two ends of device body, iron yoke pad
At least one magnetic screen 4 is inlaid with block 5, the lid 3 for sealing is provided with the upside of magnetic screen 4, and 5 side of iron yoke cushion block is provided with iron yoke
1.The magnetic screen is respectively provided with an oil duct insulation board in both sides about 4, and described oil duct insulation board is by 1mm insulation boards 6 and some 4mm
Strip oil channel cushion block 7 is bonded, and the interleaved on insulation board 6 of oil channel cushion block 7 is arranged, and the spacing of adjacent oil channel cushion block is
Oil channel cushion block above and below 30mm, wherein magnetic screen is respectively positioned on below insulation board, uniform on the insulation board below magnetic screen
Open the oil guiding hole 9 of some a diameter of 30mm, oil guiding hole 9 is located in the gap of oil channel cushion block, avoids oil channel cushion block.Above structure
Can ensure that magnetic screen upper and lower surfaces form the path of transformer oil, magnetic screen surface is radiated.
Oil duct insulation board correspondence magnetic screen end position is equipped with two the first Oil Guide louvres 8, iron yoke cushion block and covers
Two the second Oil Guide louvres 13 are provided with the Oil Guide louvre corresponding position, the diameter of all Oil Guide louvres is
60mm.Iron yoke cushion block is not shielded and is provided with the wide 50mm of twice, the conduction trough 11 of depth 10mm at about the 1/3 and 2/3 of pillar side,
If two conduction troughs are smaller than 50mm, retain one conduction trough.The conduction trough is insulated with oil duct as far as possible close to magnetic screen end face
30mm width oil duct correspondence on plate, conduction trough is by the oil communication of magnetic screen top and bottom.Second Oil Guide louvre 13 with residing for which
Iron yoke cushion block lateral edges between be provided with the first deep oil guide grooves 12 of 10mm, the first oil guide groove 12 is located at the outer of iron yoke cushion block or lid
Surface, causes the oil circuit connection of the oil circuit around magnetic screen and transformer body by the oil guide groove.The part-structure is in magnetic cup
Cover end and oil circuit is set, magnetic screen end is radiated.
In iron yoke cushion block or cover the side that contacts with iron yoke 1 of correspondence and be provided with the second wide oil guide grooves 10 of four road 60mm,
Second oil guide groove, 10 one end extends to iron yoke cushion block edge.The part-structure arranges oil circuit in magnetic screen and iron yoke contact side, right
Magnetic screen permeable section radiates.
Claims (5)
1. a kind of magnetic screen radiator structure, including the magnetic screen (4) being embedded in iron yoke cushion block (5), magnetic screen is provided with the upside of (4)
For the lid (3) of sealing, iron yoke cushion block (5) side is provided with iron yoke (1), it is characterised in that：Magnetic screen (4) both sides are each up and down
One is provided with for providing the oil duct insulation board of transformer oil path, oil duct insulation board correspondence magnetic screen end position is equipped with first
Oil Guide louvre (8), the iron yoke cushion block and Gai Yu Oil Guide louvre corresponding position is provided with the second Oil Guide louvre (13), magnetic
The conducting of magnetic screen upper and lower sides the first Oil Guide louvre and the second Oil Guide louvre is communicated with the iron yoke cushion block of shielding end
Groove (11), is provided with the first oil guide groove (12), the first Oil Guide between the second Oil Guide louvre and the iron yoke cushion block lateral edges residing for which
Groove is located at the outer surface of iron yoke cushion block or lid；Iron yoke cushion block or lid are provided with least the second oil guide groove of twice with iron yoke contact side
(10), second oil guide groove one end extends to iron yoke cushion block edge.
2. magnetic screen radiator structure according to claim 1, it is characterised in that：Described oil duct insulation board includes insulation board
(6) oil channel cushion block (7) that interleaved is arranged and on insulation board, the wherein oil channel cushion block above and below magnetic screen are respectively positioned on
Below insulation board, on the insulation board below magnetic screen, oil guiding hole (9) is provided with position corresponding with the gap of oil channel cushion block.
3. magnetic screen radiator structure according to claim 2, it is characterised in that：The spacing of oil channel cushion block (7) is
30mm。
4. magnetic screen radiator structure according to claim 2, it is characterised in that：A diameter of 30mm of oil guiding hole (9).
5. the magnetic screen radiator structure according to any one of Claims 1-4, it is characterised in that：The first Oil Guide radiating
The diameter of hole and the second Oil Guide louvre is 60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510106773.2A CN104637657B (en) | 2015-03-12 | 2015-03-12 | Magnetic shield heat dissipation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510106773.2A CN104637657B (en) | 2015-03-12 | 2015-03-12 | Magnetic shield heat dissipation structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104637657A CN104637657A (en) | 2015-05-20 |
| CN104637657B true CN104637657B (en) | 2017-03-22 |
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ID=53216300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510106773.2A Active CN104637657B (en) | 2015-03-12 | 2015-03-12 | Magnetic shield heat dissipation structure |
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| Country | Link |
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| CN (1) | CN104637657B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112908661B (en) * | 2021-03-22 | 2022-06-24 | 保定天威保变电气股份有限公司 | Method and device for bonding iron yoke magnetic shielding plates on three-phase reactor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51149523A (en) * | 1975-06-16 | 1976-12-22 | Hitachi Ltd | Stationary induction electric apparatus |
| CN102315004A (en) * | 2010-06-30 | 2012-01-11 | 特变电工沈阳变压器集团有限公司 | Magnetic shielding structure and method of transformer |
| JP2012028642A (en) * | 2010-07-26 | 2012-02-09 | Toshiba Corp | Transformer |
| CN202307427U (en) * | 2011-11-02 | 2012-07-04 | 特变电工沈阳变压器集团有限公司 | Structure of insulating oil duct on two sides of magnetic shielding of transformer body |
| CN204390888U (en) * | 2015-03-12 | 2015-06-10 | 山东电力设备有限公司 | A kind of New Magnetic Field Controlled shielding radiator structure |
-
2015
- 2015-03-12 CN CN201510106773.2A patent/CN104637657B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51149523A (en) * | 1975-06-16 | 1976-12-22 | Hitachi Ltd | Stationary induction electric apparatus |
| CN102315004A (en) * | 2010-06-30 | 2012-01-11 | 特变电工沈阳变压器集团有限公司 | Magnetic shielding structure and method of transformer |
| JP2012028642A (en) * | 2010-07-26 | 2012-02-09 | Toshiba Corp | Transformer |
| CN202307427U (en) * | 2011-11-02 | 2012-07-04 | 特变电工沈阳变压器集团有限公司 | Structure of insulating oil duct on two sides of magnetic shielding of transformer body |
| CN204390888U (en) * | 2015-03-12 | 2015-06-10 | 山东电力设备有限公司 | A kind of New Magnetic Field Controlled shielding radiator structure |
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| Publication number | Publication date |
|---|---|
| CN104637657A (en) | 2015-05-20 |
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