CN110073450A - The manufacturing method of oil-immersed transformer and its fuel tank used - Google Patents
The manufacturing method of oil-immersed transformer and its fuel tank used Download PDFInfo
- Publication number
- CN110073450A CN110073450A CN201880005098.6A CN201880005098A CN110073450A CN 110073450 A CN110073450 A CN 110073450A CN 201880005098 A CN201880005098 A CN 201880005098A CN 110073450 A CN110073450 A CN 110073450A
- Authority
- CN
- China
- Prior art keywords
- oil
- fuel tank
- side plate
- immersed transformer
- embossing portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- H01F27/02—Casings
-
- 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
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
- H01F30/12—Two-phase, three-phase or polyphase transformers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Housings And Mounting Of Transformers (AREA)
- Transformer Cooling (AREA)
Abstract
The purpose of the present invention is to provide the oil-immersed transformers of the thermal diffusivity and intensity of a kind of miniaturization for considering oil-immersed transformer and fuel tank.To achieve the above object, oil-immersed transformer stores the core-coil assembly as made of iron core and coil assembling in fuel tank, and insulating oil is filled in fuel tank, fuel tank includes for installing the flange of fuel tank cap, bottom plate and the main part being made of side plate being arranged between flange and bottom plate, multiple embossing portions are formed on the surface of main part, by constituting the plate-side plate welding for being formed with embossing portion at tubular, weld part is welded main part in a manner of contacting with embossing portion.
Description
Technical field
The present invention relates to oil-immersed transformers, more particularly to consider the oil immersed type transformation of miniaturization, thermal diffusivity and intensity
The fuel tank of device.
Background technique
Usually, in the fuel tank of oil immersed type electrical equipment such as oil-immersed transformer, the insulation as transformer is situated between
Matter is incorporated with insulating oil.The insulating oil can cause temperature to rise because of the heating power of transformer, cause to expand and cause
The internal pressure of fuel tank rises, so fuel tank needs to have enough intensity will not deform.Furthermore it is required that heat dissipation performance with
The temperature for being able to suppress the low insulating oil of thermal conductivity rises.
As the prior art of this fuel tank, there is Japanese Unexamined Patent Application 53-35122 bulletin (patent document 1).In patent text
It offers in 1 fuel tank of oil immersed type electrical equipment, side plate is formed with fin-shaped protruding portion and sheet material is bent into corrugated,
Prominent grease chamber is formed in each protruding portion, and the upper and lower end parts of above-mentioned protruding portion is made to restrain and be formed the face connecting part of contiguity inwardly,
And weld the upper and lower end parts of above-mentioned protruding portion along above-mentioned face connecting part, make its sealing wire only along an axis, meanwhile, above-mentioned
The plate position of protruding portion forms raised or sunken reinforcing rib (bead), and the machinery for increasing protruding portion using above-mentioned reinforcing rib is strong
Degree.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Application 53-35122 bulletin
Summary of the invention
Technical problems to be solved by the inivention
Shown in the patent document 1 in the prior art, internal pressure is caused to increase because the temperature of insulating oil rises in fuel tank
In the case where, the fin-shaped protruding portion as radiated rib improves intensity of the protruding portion on horizontal and vertical using reinforcing rib.But
It is to improve intensity due to being provided with reinforcing rib on radiated rib, it can phase to the face connecting part bring load of radiated rib
Increase with answering, needs using more advanced joint method to there are problems that cost is caused to increase.
In addition, there is such circulations for insulating oil, that is, added because of the energization for the coil-conductor being set on iron core
When hot, its top can be risen to, the interior side of scattering fin is flowed to from top, and cold under the heat spreading function of radiated rib
But, to decline from the peripheral side of radiated rib and return to coil side.Therefore, it in order to improve heat dissipation performance, needs to increase scattered
Hot fin is with increasing heat radiation area.It accordingly, there are the problem of the whole enlargement of oil-immersed transformer.
The present invention is in view of the above problems, and it is an object of the present invention to provide a kind of miniaturization for considering oil-immersed transformer and fuel tank
The oil-immersed transformer of thermal diffusivity and intensity.
Technical means to solve problem
The present invention in view of the aforementioned technical background, lifts its an example, using such as flowering structure, that is, a kind of oil-immersed transformer, in oil
Storage core-coil assembly as made of iron core and coil assembling in case, and insulating oil is filled in fuel tank, fuel tank includes
For installing the flange, bottom plate and the main part being made of side plate being arranged between flange and bottom plate of fuel tank cap, in main part
Surface be formed with multiple embossing portions, main part is by constituting the plate-side plate welding for being formed with embossing portion at tubular, weld part
It is welded in a manner of being contacted with embossing portion.
Invention effect
In accordance with the invention it is possible to provide the thermal diffusivity and intensity of a kind of miniaturization for considering oil-immersed transformer and fuel tank
Oil-immersed transformer.
Detailed description of the invention
Fig. 1 is the approximate stereogram of the fuel tank entirety in embodiment.
Fig. 2 is the cross-sectional view of the oil-immersed transformer in embodiment.
Fig. 3 is the perspective view in embodiment as the fuel tank entirety provided with radiated rib of premise.
Fig. 4 is the perspective view of the fuel tank entirety in embodiment.
Fig. 5 is the approximate stereogram of the longitudinal section of the fuel tank entirety from oblique in embodiment.
Fig. 6 is the enlarged diagram in embodiment as the welding portion of the fuel tank side board of premise.
Fig. 7 is the enlarged diagram for indicating the first case of weld part point of the fuel tank side board in embodiment.
Fig. 8 is the enlarged diagram for indicating the second case of weld part point of the fuel tank side board in embodiment.
Fig. 9 is the enlarged diagram for indicating the third example of weld part point of the fuel tank side board in embodiment.
Figure 10 is the 4th enlarged diagram for indicating the weld part point of the fuel tank side board in embodiment.
Figure 11 is the 5th enlarged diagram for indicating the weld part point of the fuel tank side board in embodiment.
Specific embodiment
Underneath with Detailed description of the invention the embodiment of the present invention.
Embodiment
Fig. 1 is the approximate stereogram of the fuel tank entirety in the present embodiment.In Fig. 1, fuel tank 10 includes for installing fuel tank cap
Flange 11, bottom plate 12 and the main part 13 being made of side plate being arranged between flange 11 and bottom plate 12, they are for storing
The core-coil assembly as made of iron core and coil assembling and the insulating oil for making it insulate.Main part 13 is by right
The thin plate of sheet such as steel plate carries out punch process and shapes.
Fig. 2 is the cross-sectional view of the cross section of the oil-immersed transformer in the present embodiment viewed from above.Fig. 2 illustrate by
The oil-immersed transformer for the three-phase three-column structure that U phase, V phase, W phase are constituted.In Fig. 2, in the inside of the fuel tank 10 of rectangular shape
The core-coil assembly 20 for storing each phase is full of insulating oil 30 around it.
In core-coil assembly 20, the coil 22 of each phase is set in the column portion of iron core 21.Coil 22 is by primary coil
Portion 23 and secondary coil portion 24 are constituted.
Fig. 3 is the perspective view in the present embodiment as the fuel tank entirety provided with radiated rib of premise.As shown in figure 3,
For increasing heat radiation area, it may be considered that the complete cycle model according to existing Oiltank structure, in the outside of the main part 13 of fuel tank 10
Radiated rib 40 is set at certain intervals in enclosing.
But as described above, if increase cooling fin provided with radiated rib, and further for heat dissipation effect is improved
Then there is the whole enlargement of oil-immersed transformer in piece.
Then, it in the present embodiment, in order to increase the heat dissipation area around fuel tank, is formd on the main part 13 of fuel tank more
A protrusion embosses portion (emboss) 50.
Fig. 4 is the perspective view of the fuel tank entirety in the present embodiment.As shown in figure 4, the present embodiment is in order to increase around fuel tank
Heat dissipation area, multiple embossing portions 50 are formd on the main part 13 of fuel tank.Each embossing portion 50 around main part 13 with
Specified interval is configured to arranged in parallel or is staggered.Moreover, each embossing portion 50 such as protrusion is formed as hemispherical, and continuous
Ground configures and forms the high radiating surface of conductivity of heat.In addition, embossing portion 50 is formed as protrusion in Fig. 4, but recess portion can also be formed as.
In this way, forming the embossing portion of protrusion or recess portion by the main part in fuel tank, oil-immersed transformer can inhibited
The increasing heat radiation area while enlargement of entirety, and thermal diffusivity can be further increased.In addition, by forming protrusion or recess portion
Embossing portion, can be improved the intensity of fuel tank.
Although however, main part 13 be sheet thin plate it is stamped be process shape, in order to using sheet side plate
The main part for constituting tubular needs the end of side plate passing through the methods of welding connection.Fig. 5 indicates that fuel tank is whole from oblique
Longitudinal section approximate stereogram.Embossing portion is omitted in Fig. 5.In order to form main part 13 for example, by using such method system
It makes, that is, for each moiety of main part 13 shown in fig. 5 divided along longitudinal direction, Embossing processing is carried out by punch process, is gone forward side by side
Row bending and forming, at 2 side plates of U-shaped by being bonded on when will be longitudinal moiety after forming, viewed from above
Together.Alternatively, it is also possible to use 1 sheet material to shape and be welded into tubular.Line A-A in Fig. 5 is the position welded, and is indicated
Sealing wire.
Fig. 6 is the enlarged diagram for constituting the welding portion of side plate of main part 13.Line A-A indicates the sealing wire in Fig. 5.
Welding position in Fig. 6 is welded between flat part 60 in not formed embossing portion.
In contrast, it in Fig. 7, is welded in the part that flat part 60 is contacted with the end in embossing portion 50.In welding,
It is subjected to along sealing wire, the weldering with a degree of width is formed by metal, that is, welding bead of Melting And Solidification in welding
Socket part.To which by using the welding manner of Fig. 7, because being soldered to embossing portion, welding distance is more straight than the longitudinal direction of side plate
Linear distance is long.Therefore, have compared with Fig. 6 between flat part 60 the case where welding, intensity can be mentioned
High effect.
In addition, Fig. 8 is welded in the part that flat part 60 is contacted with the half in embossing portion 50.Accordingly, because being and pressure
The curvature in line portion higher part welding, so compared to the further extension of welding distance with Fig. 7 the case where.Therefore, there is intensity
The feature being further enhanced.In addition, can be realized three-dimensional welding, further increasing for intensity can be realized.
Fig. 9 is the example welded between the end in embossing portion 50.The example is also, and between flat part 60
The case where welding, extends compared to welding distance, so the feature being improved with intensity.
Figure 10 is welded in the part that the end in embossing portion 50 is contacted with the half in embossing portion 50.In this case and,
Welding distance extends compared with the case where welding between flat part 60, and then can be realized three-dimensional welding, Neng Goushi
Existing intensity further increases.
In addition, the part that half of the Figure 11 in embossing portion 50 is in contact with each other is welded.In this case and, and in plate
The case where portion 60 is welded each other extends compared to welding distance, and then can be realized three-dimensional welding, can be realized intensity
It further increases.
It as shown in above-mentioned Fig. 7 to Figure 11, is welded in a manner of contacting weld part with embossing portion, welds distance
Extend, and then can be realized three-dimensional welding, can be realized the raising of intensity.
In addition, side plate and side plate can be made to welding is fetched in welding between side plate, it can also be by side plate weight
It folds to weld the end of side plate.
In addition, above-mentioned embossing portion can be used as the substantially standard of positioning when welding.Because embossing portion is periodically to match
It sets, so the embossing portion for the side plate that will be connected only is needed to overlap each other and welded, embossing portion can be used itself
Make the positioning welded.Alternatively, it is also possible to which the embossing portion for being exclusively used in positioning is arranged.
As described above, the present embodiment forms the embossing portion of protrusion or recess portion on the side plate of main part for forming fuel tank,
And bending and forming is carried out, when by the plate-side plate welding at tubular, welded in such a way that weld part is contacted with embossing portion.
Thereby, it is possible to radiated rib is arranged not on fuel tank to realize miniaturization, in the thermal diffusivity realized by embossing portion
It improves except being improved with the intensity of fuel tank, additionally it is possible to which the intensity for further realizing fuel tank improves.
Description of symbols
10: fuel tank, 11: flange, 12: bottom plate, 13: main part, 20: core-coil assembly, 21: iron core, 22: coil,
23: primary coil section, 24: secondary coil portion, 30: insulating oil, 40: radiated rib, 50: embossing portion, 60: flat part.
Claims (11)
1. a kind of oil-immersed transformer, storage core-coil assembly as made of iron core and coil assembling in fuel tank, and
Insulating oil is filled in fuel tank, the oil-immersed transformer is characterized in that:
The fuel tank include for install the flange of fuel tank cap, bottom plate and be arranged between the flange and the bottom plate by side
The main part that plate is constituted,
Multiple embossing portions are formed on the surface of the main part,
The main part by the way that the plate-side plate welding for being formed with the embossing portion is constituted at tubular, the weld part with the pressure
The mode of line portion contact is welded.
2. oil-immersed transformer as described in claim 1, it is characterised in that:
The weld part welds in such a way that the flat part of the side plate is contacted with the end in embossing portion.
3. oil-immersed transformer as described in claim 1, it is characterised in that:
The weld part welds in such a way that the flat part of the side plate is contacted with the half in embossing portion.
4. oil-immersed transformer as described in claim 1, it is characterised in that:
The weld part welds in such a way that the end in the embossing portion of the side plate is in contact with each other.
5. oil-immersed transformer as described in claim 1, it is characterised in that:
The weld part welds in such a way that the end in the embossing portion of the side plate is contacted with the half in embossing portion.
6. oil-immersed transformer as described in claim 1, it is characterised in that:
The weld part welds in such a way that the half in the embossing portion of the side plate is in contact with each other.
7. the oil-immersed transformer as described in any one of claim 1~6, it is characterised in that:
The embossing portion is used for positioning when being welded.
8. oil-immersed transformer as described in claim 1, it is characterised in that:
The weld part is the welding formation by the embossing portion overlapping of the side plate.
9. oil-immersed transformer as described in claim 1, it is characterised in that:
In the weld part, by the end face butt welding of the side plate, or side plate is overlapped and welds the end face of side plate.
10. oil-immersed transformer as described in claim 1, it is characterised in that:
Multiple embossing portions on the surface of the main part of the fuel tank are protrusion or recess portion, and multiple embossing portion is continuously configured to
It is arranged in parallel or be staggered.
11. a kind of manufacturing method of the fuel tank of oil-immersed transformer, it is characterised in that:
The fuel tank include for install the flange of fuel tank cap, bottom plate and be arranged between the flange and the bottom plate by side plate
The main part of composition,
Multiple embossing portions are formed on the surface of the main part,
The embossing portion is formed to side plate progress punch process,
Bending and forming is carried out to the side plate of the formation,
2 side plates of the forming are welded in such a way that weld part is contacted with the embossing portion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-121128 | 2017-06-21 | ||
| JP2017121128A JP6328828B1 (en) | 2017-06-21 | 2017-06-21 | Oil-filled transformer and manufacturing method of tank used therefor. |
| PCT/JP2018/001503 WO2018235322A1 (en) | 2017-06-21 | 2018-01-19 | Oil-filled transformer and production method for tank used therein |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110073450A true CN110073450A (en) | 2019-07-30 |
Family
ID=62186807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880005098.6A Pending CN110073450A (en) | 2017-06-21 | 2018-01-19 | The manufacturing method of oil-immersed transformer and its fuel tank used |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6328828B1 (en) |
| CN (1) | CN110073450A (en) |
| TW (1) | TWI654630B (en) |
| WO (1) | WO2018235322A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113977193A (en) * | 2021-10-14 | 2022-01-28 | 沈阳海为电力装备股份有限公司 | Method for manufacturing rust-proof carbon steel cabinet cover of internal oil type metal corrugated expansion oil conservator |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5328817U (en) * | 1976-08-20 | 1978-03-11 | ||
| JPS5335122A (en) * | 1976-09-14 | 1978-04-01 | Toshiba Corp | Oiling electric machine tank |
| JPS5934605A (en) * | 1982-08-23 | 1984-02-25 | Hitachi Ltd | Tank for oil immersed electric apparatus |
| CN2235151Y (en) * | 1995-03-30 | 1996-09-11 | 西安变压器厂 | Transformer oil reservoir press-moulding die |
| CN201536043U (en) * | 2009-11-13 | 2010-07-28 | 上海南桥变压器有限责任公司 | Novel sinusoidal wavelike oil tank |
| CN102360751A (en) * | 2011-07-28 | 2012-02-22 | 苏州鼎能电力设备有限公司 | Transformer oil box |
| CN202977091U (en) * | 2012-08-24 | 2013-06-05 | 十堰恒融实业有限公司 | Transformer oil tank |
| US20140260482A1 (en) * | 2013-03-15 | 2014-09-18 | Howard Industries, Inc. | Method of reducing oil volume in a poletype transformer |
| JP2016184706A (en) * | 2015-03-26 | 2016-10-20 | 大日本印刷株式会社 | Cooling structure and cooling component |
| CN206163256U (en) * | 2016-10-25 | 2017-05-10 | 河北鑫环通变压器制造有限公司 | Novel dustproof transformer tank |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58147225U (en) * | 1982-03-30 | 1983-10-03 | 株式会社高岳製作所 | corrugated heat sink |
| JP2016046294A (en) * | 2014-08-20 | 2016-04-04 | 株式会社ダイヘン | Tank for stationary induction apparatus, method of manufacturing tank for stationary induction apparatus, and stationary induction apparatus |
-
2017
- 2017-06-21 JP JP2017121128A patent/JP6328828B1/en active Active
-
2018
- 2018-01-19 WO PCT/JP2018/001503 patent/WO2018235322A1/en active Application Filing
- 2018-01-19 CN CN201880005098.6A patent/CN110073450A/en active Pending
- 2018-03-05 TW TW107107252A patent/TWI654630B/en not_active IP Right Cessation
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5328817U (en) * | 1976-08-20 | 1978-03-11 | ||
| JPS5335122A (en) * | 1976-09-14 | 1978-04-01 | Toshiba Corp | Oiling electric machine tank |
| JPS5934605A (en) * | 1982-08-23 | 1984-02-25 | Hitachi Ltd | Tank for oil immersed electric apparatus |
| CN2235151Y (en) * | 1995-03-30 | 1996-09-11 | 西安变压器厂 | Transformer oil reservoir press-moulding die |
| CN201536043U (en) * | 2009-11-13 | 2010-07-28 | 上海南桥变压器有限责任公司 | Novel sinusoidal wavelike oil tank |
| CN102360751A (en) * | 2011-07-28 | 2012-02-22 | 苏州鼎能电力设备有限公司 | Transformer oil box |
| CN202977091U (en) * | 2012-08-24 | 2013-06-05 | 十堰恒融实业有限公司 | Transformer oil tank |
| US20140260482A1 (en) * | 2013-03-15 | 2014-09-18 | Howard Industries, Inc. | Method of reducing oil volume in a poletype transformer |
| JP2016184706A (en) * | 2015-03-26 | 2016-10-20 | 大日本印刷株式会社 | Cooling structure and cooling component |
| CN206163256U (en) * | 2016-10-25 | 2017-05-10 | 河北鑫环通变压器制造有限公司 | Novel dustproof transformer tank |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018235322A1 (en) | 2018-12-27 |
| JP6328828B1 (en) | 2018-05-23 |
| TWI654630B (en) | 2019-03-21 |
| JP2019009166A (en) | 2019-01-17 |
| TW201905943A (en) | 2019-02-01 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20190730 |