CN102386571A - Transformer cooling device - Google Patents
Transformer cooling device Download PDFInfo
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- CN102386571A CN102386571A CN2011102300115A CN201110230011A CN102386571A CN 102386571 A CN102386571 A CN 102386571A CN 2011102300115 A CN2011102300115 A CN 2011102300115A CN 201110230011 A CN201110230011 A CN 201110230011A CN 102386571 A CN102386571 A CN 102386571A
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- transformer
- framework
- cooling air
- partition board
- cooling
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Abstract
The invention provides a transformer cooling device which, with a simple structure, can effectively cool a transformer. The transformer cooling device comprises a frame (1) for accommodating a transformer (2); a separating plate (6) which divides, in the frame (1), the periphery of the transformer (2) into front and rear parts and allows the formation of an air hole portion (7) at the back of the transformer (2); ventilation top fans (8a, 8b) which are opposite to the air hole portion (7) and are configured to the upper surface of the frame (1); cooling air-absorbing ports (4u-4w) which are formed only in the front of the frame (1) at positions opposite to a winding portion of the transformer (2); and a cooling air channel going from the cooling air-absorbing ports (4u-4w) to the winding portion of the transformer (2), the air hole portion (7) and then to the ventilation top fans (8a, 8b).
Description
Technical field
The cooling device of the transformer that the present invention relates to the transformer that is configured in the framework is cooled off.
Background technology
In the semi-conductor electricity power conversion device; Part with the part of heat-producing devices such as the semiconductor unit that constitutes main circuit, cooling main circuit transformer and control unit that the electric equipment by the poor control printed circuit board of thermal endurance is constituted cool off separates into three dishes (framework) respectively and takes in.Especially, take in the dish (framework) of the many main circuit transformers of caloric value, adopt the forced ventilation mode (for example with reference to patent documentation 1) that is provided with air entry at least in the front, carries out exhaust with cabin fan.In the existing example of this patent documentation 1 record, with ventilating fan with the central portion of fore-and-aft direction from above the mode relative with transformer be configured in the top of the dish of taking in transformer, at the positive basifacial of dish air entry is set.And; Rear side in tray bottom disposes the guide duct that combines with blowing fan; Form peristome towards the back side of transformer at this guide duct, the part that will be taken into the extraneous air in the dish through air entry is divided air supply stream from the air outlet of guide duct to the back side of transformer.
In addition; The also known transformer dish that is described below (for example with reference to patent documentation 2): be provided with transformer side insulation board, case side insulating support unit and air-breathing cowling panel; Said transformer side insulation board is as framework inner space partition member; With being separated into upper space and lower space in the framework, and stop the cooling air that produces by cooling fan to circulate each other at upper space and lower space, and then; In the tubular insulant of the peripheral part of the cooling air guiding encirclement transformer coil that will in framework, produce through the cooling fan rotation, the coil of cooling transformer.
[patent documentation 1] TOHKEMY 2009-303354 communique
[patent documentation 2] TOHKEMY 2009-76825 communique
At this, in the existing example of above-mentioned patent documentation 1 and patent documentation 2 records, adopt the forced exhaust mode; Promptly; Only the face side from the framework of taking in transformer is taken into air, makes the cooling air that is taken in the framework through around the transformer, by the cooling fan that is configured in the top to outside exhaust.
But; In the existing example of above-mentioned patent documentation 1 and patent documentation 2 records; For the cooling air that will be taken into from the front of framework be directed to transformer around; Need blowing fan and guide duct, surround transformer coil peripheral part the tubular insulant and cooling air is directed to the wind guiding mechanism of the bottom of this tubular insulation division, have unsolved problems such as complex structure and framework maximization.
Summary of the invention
So the present invention is conceived to the unsolved problem of above-mentioned existing example and accomplishes, its purpose is, provide a kind of can be with the simple structure cooling device of the transformer of cooling transformer efficiently.
To achieve these goals, the cooling device of the transformer that an embodiment of the invention relate to is characterized in that, comprising: the framework of taking in transformer; In this framework,, form the demarcation strip of wind-tunnel portion in the rear side of this transformer with before and after being separated into around the above-mentioned transformer; Relative with above-mentioned wind-tunnel portion, and cabin fan is used in the exhaust that is configured in the upper surface of above-mentioned framework; With the cooling air air entry that only forms in the relative position of the positive winding portion of above-mentioned framework with above-mentioned transformer; And only be formed with from the winding portion of above-mentioned cooling air air entry through above-mentioned transformer, arrive the cooling air passage of above-mentioned exhaust through above-mentioned wind-tunnel portion again with cabin fan.
According to this structure; Only form from the winding portion of cooling air air entry through above-mentioned transformer; The wind-tunnel portion of the rear side through this winding portion is to the cooling air passage of above-mentioned exhaust with cabin fan again, can pass through the big cooling air of flow velocity in the winding portion of transformer, can improve the cooling effectiveness of transformer.
In addition; The cooling device of the transformer that other type of the present invention relates to; It is characterized in that: above-mentioned demarcation strip comprises top partition board portion and side separation board; Above-mentioned top partition board portion is provided between the upper surface of upper surface and framework of above-mentioned transformer, above-mentioned side separate board from the both sides of this top partition board portion through above-mentioned transformer the side and extend to above-mentioned framework the back side and below side.
According to this structure; Around top partition board portion and side separation board covering transformer; The wind-tunnel portion of the width corresponding can be formed,, the cooling effectiveness of transformer can be further improved from the winding portion that the cooling air of cooling air air entry suction only passes through transformer with the width of transformer.
In addition; The cooling device of the transformer that other type of the present invention relates to; It is characterized in that: above-mentioned demarcation strip comprises top partition board portion and side separation board; Above-mentioned top partition board portion is provided between the upper surface of upper surface and framework of above-mentioned transformer, above-mentioned side separate board from the both sides of this top partition board portion through the side of above-mentioned transformer extend to above-mentioned framework left surface side, right flank side and below side.
According to this structure, around top partition board portion and side separation board covering transformer, before and after can framework being divided into,, can further improve the cooling effectiveness of transformer from the winding portion that the cooling air of cooling air air entry suction only passes through transformer.
In addition, the cooling device of the transformer that other type of the present invention relates to is characterized in that: above-mentioned exhaust is configured so that to fan the rear side of central axis through the winding portion of above-mentioned transformer with cabin fan.
According to this structure, discharge reliably with the cooling air that cabin fan can arrive the winding portion through transformer rear side with exhaust.
In addition, the cooling device of the transformer that other type of the present invention relates to is characterized in that: above-mentioned exhaust is set up in parallel many with cabin fan along Width.
According to this structure, can enough many exhausts with cabin fan will be through transformer the cooling air of winding discharge, can improve the air quantity of cooling air, the cooling effectiveness of raising transformer.
Effect of the present invention is described below.
According to the present invention, demarcation strip is set around transformer, form wind-tunnel portion with rear side at transformer; The upper surface in framework relative with this wind-tunnel portion is provided with exhaust and uses cabin fan; And, only on the position relative framework face side, the cooling air air entry is set, through above-mentioned simple structure with winding transformer; Can only form from the winding portion of cooling air air entry through above-mentioned transformer; Again through wind-tunnel portion to above-mentioned exhaust with the cooling air passage of cabin fan, can pass through the big cooling air of flow velocity in the winding portion of transformer, have the effect of the cooling effectiveness that can improve transformer.
Description of drawings
Fig. 1 is the figure of expression first execution mode of the present invention, wherein, (a) is front elevation, (b) is the front elevation that unloads after the front plate, (c) is the sectional view of the A-A line of (a), (d) is the sectional view on the B-B line of (a).
Fig. 2 is the figure of expression second execution mode of the present invention, wherein, (a) is front elevation, (b) is the front elevation that unloads after the front plate, (c) is the sectional view on the C-C line of (a).
Description of reference numerals:
The 1-framework
The 1a-front panel
The 1b-rear board
The 1c-top panel
The 1d-bottom panel
The 1e-Left-Hand Panel
The 1f-right panel
2-main circuit transformer
The 3-shutter door
4u～4w-cooling air air entry
The 6-demarcation strip
6a-top partition board portion
6b～6e-side sections partition board portion
7-wind-tunnel portion
Cabin fan is used in 8a, 8b-exhaust
Embodiment
Below; With reference to description of drawings execution mode of the present invention, in following execution mode, though inscape, kind, combination, position, shape, quantity and disposing relatively etc. has been done various qualifications; But these only are illustrations, and the present invention is not limited to following execution mode.
Fig. 1 (a)～(d) is the figure of expression first execution mode of the present invention.Among the figure, Reference numeral 1 is framework (dish), and this framework 1 forms rectangular shape by front panel 1a, rear board 1b, top panel 1c, bottom panel 1d, Left-Hand Panel 1e and right panel 1f.Substantial middle portion in this framework 1 is so that the state that three-phase winding L u, Lv and Lw arrange along Width is taken in 3 mutually main circuit transformers 2.Main circuit transformer 2 is fixed on the bottom panel 1d of framework 1.
The front panel 1a of framework 1 is provided with three row shutter door 3 at two sections along Width, in the relative position of downside of shutter door 3 and winding L u, Lv and the Lw main circuit transformer 2 of hypomere, forms cooling air air entry 4u, 4v and 4w.Above-mentioned cooling air air entry 4u～4w is covered by mesh members 5 separately.
In addition, between the top panel 1c of the top of the main circuit transformer 2 of the inside of framework 1 and framework 1, dispose demarcation strip 6.This demarcation strip 6 forms the U word shape with the latter half of encirclement of main circuit transformer 2 from the plane by top partition board portion 6a, connected side sections partition board portion 6b and 6c.
Top partition board portion 6a extends configuration along Width between the top panel 1c of the top of the main circuit transformer 2 on the centre position of the fore-and-aft direction of framework 1 and framework 1.In addition; Side sections partition board portion 6b and 6c are configured to: the right ends of partition board portion 6a rearward from top; Extend in parallel the rear board 1b of framework 1 with left and right sides panel 1e and 1f; And extend to the bottom panel 1d of framework 1, cover the degree of side about half of winding L u and the Lw of main circuit transformer 2.
And, formed wind-tunnel portion 7 by the rear side of top partition board portion 6a, side sections partition board portion 6b, 6c and the main circuit transformer 2 of demarcation strip 6.
In addition, the position relative with wind-tunnel portion 7 at the top panel 1c of framework 1 disposes 2 exhausts with cabin fan 8a, 8b.Above-mentioned exhaust separately so that the axis Lf of fan center leans on the mode of rear side slightly than the back position of main circuit transformer 2, with leaving predetermined distance is configured in top panel 1c along Width with cabin fan 8a, 8b.
Below, the action of above-mentioned first execution mode is described.
Exhaust is configured in the top of the wind-tunnel portion 7 that is surrounded by demarcation strip 6 with cabin fan 8a, 8b; Therefore; Through making above-mentioned exhaust with cabin fan 8a, 8b rotation, extraneous air is taken in the framework 1 as cooling air from cooling air air entry 4u～4w of the front panel 1a that is configured in framework 1.
Top partition board portion 6a, side sections partition board portion 6b and 6c that main circuit transformer 2 latter half of is separated plate 6 surround, and have formed wind-tunnel portion 7 by the back side portion of above-mentioned demarcation strip 6 and main circuit transformer 2.And; Upper side in wind-tunnel portion 7 is provided with exhaust with cabin fan 8a, 8b, therefore, be deflated the cooling air that attracts with cabin fan 8a, 8b like Fig. 1 (c) with that kind (d); Around cooling air air entry 4u, 4v and 4w winding L u, Lv and the Lw through main circuit transformer 2; Get into wind-tunnel portion 7, formation with the cooling air passage of cabin fan 8a and 8b, is carried out air blast cooling (air cooling) from this wind-tunnel portion 7 to exhaust.
At this moment; The air quantity and the wind speed of the cooling air that is inhaled into from cooling air air entry 4u～4w; With the air quantity of the cooling air of discharging with cabin fan 8a and 8b and wind speed by exhaust about equally; Whole air quantity of the cooling air that is inhaled into from above-mentioned cooling air air entry 4u～4w around the winding L u～Lw through main circuit transformer 2, are discharged to the outside by exhaust with cabin fan 8a and 8b.Therefore, can improve air quantity and wind speed, can fully cool off main circuit transformer 2, improve cooling effect through the cooling air around the winding L u～Lw of main circuit transformer 2.
And; Be used to obtain the structure of above-mentioned effect, be framework 1 with main circuit transformer 2 relative front panel 1f cooling air air entry 4u～4w is set, and; Configuration is with the demarcation strip 6 of the latter half of encirclement of main circuit transformer 2; Form wind-tunnel portion 7 in the rear side of main circuit transformer 2, exhaust is set with cabin fan 8a, 8b, can form effective cooling air passage with above-mentioned simple structure in the upper side of this wind-tunnel portion 7.Thus, main circuit transformer 2 can be that prerequisite is set with the air blast cooling, can realize miniaturization.In addition; Owing to only carry out air-breathing from cooling air air entry 4u～4w in the face side setting of framework 1; Therefore, there is no need air entry to be set, there is no need the air-breathing space of using to be set in the rear side of framework 1 in the rear side of framework 1; Thereby such like Fig. 1 (c) and (d), the rear side that can make framework 1 and wall etc. dispose contiguously.
Therefore, can realize taking in miniaturization and the downsizing that the space is set of the framework 1 of main circuit transformer 2.
In addition; Owing to pass through the side sections partition board portion 6b of demarcation strip 6 and the side that 6c surrounds main circuit transformer 2, so the width of the width of wind-tunnel portion 7 and main circuit transformer 2 about equally, can the cooling air width of channel be made as roughly certain; Reduce the resistance of ducting of cooling air; Can under laminar condition, cooling air be passed through, can carry out heat exchange, discharge the cooling air that has heat well at main circuit transformer 2.
In above-mentioned first execution mode; The left and right sides panel 1e of side sections partition board portion 6b, 6c and the framework 1 of demarcation strip 6, the situation that 1f forms abreast are illustrated; But the present invention is not limited thereto; In the time of also can (overlooking) from the plane, near the boundary position of rear board 1b from top partition board portion 6a diagonally extending to framework 1 and left and right sides panel 1e, 1f or its, wind-tunnel portion 7 rear side that is formed on main circuit transformer 2 gets final product in a word.
Below, with reference to Fig. 2 second execution mode of the present invention is described.
In this second execution mode, changed the shape of demarcation strip 6.
That is, second execution mode is in the structure of Fig. 1 of above-mentioned first execution mode, has omitted the side sections partition board portion 6b and the 6c of demarcation strip 6; Such like Fig. 2 (b) and (c); Replace the two side ends of the partition board portion 6a on top, be formed with side sections partition board portion 6d and 6e, they arrive left and right sides panel 1e, the 1f of framework 1; And the side through main circuit transformer 2 arrives bottom panel 1d, has the structure identical with above-mentioned Fig. 1 in addition.Therefore, the part corresponding with Fig. 1 is marked with same reference numerals, omits their detailed description.
According to this second execution mode, framework 1 front and back are separated its latter half of wind-tunnel portion 7 that becomes through top partition board portion 6a, side sections partition board portion 6d, 6e and the main circuit transformer 2 of demarcation strip 6.Therefore; Shown in Fig. 2 (c); Drive exhaust with cabin fan 8a, 8b through rotation; Formation arrives the cooling air passage of exhausts with cabin fan 8a, 8b from wind-tunnel portion 7 around the winding L u～Lw of cooling air air entry 4u～4w through main circuit transformer 2, can access and the identical action effect of above-mentioned first execution mode.In this case, demarcation strip 6 can form tabular by top partition board portion 6a, side sections partition board portion 6d and 6e, therefore can make simplifying the structure of demarcation strip 6.
In above-mentioned first and second execution modes; The situation that face side in framework 1 is formed with 3 cooling air air entry 4u～4w is illustrated; But the present invention is not limited thereto; Both can form 1 or 2 cooling air air entries of grow crosswise (rectangle), the cooling air air entry more than 4 also can be set.
In above-mentioned first and second execution modes, the situation of application main circuit transformer as transformer is illustrated, but the present invention is not limited thereto, under the situation that any transformer is accommodated in framework 1, can use the present invention.
Above with reference to description of drawings execution mode of the present invention, but the present invention is not limited to above-mentioned execution mode.In technological thought scope of the present invention, can do all changes, they all belong to protection scope of the present invention.
Claims (6)
1. the cooling device of a transformer is characterized in that, comprising:
Take in the framework of transformer;
In this framework,, form the demarcation strip of wind-tunnel portion in the rear side of this transformer with before and after being separated into around the said transformer;
Relative with said wind-tunnel portion, and cabin fan is used in the exhaust that is configured in the upper surface of said framework; With
The cooling air air entry that only forms in the relative position of the positive winding portion of said framework with said transformer,
And only be formed with from the winding portion of said cooling air air entry through said transformer, arrive the cooling air passage of said exhaust through said wind-tunnel portion again with cabin fan.
2. the cooling device of transformer as claimed in claim 1 is characterized in that:
Said demarcation strip comprises top partition board portion and side separation board; Said top partition board portion is provided between the upper surface of upper surface and framework of said transformer, said side separate board from the both sides of this top partition board portion through said transformer the side and extend to said framework the back side and below side.
3. the cooling device of transformer as claimed in claim 1 is characterized in that:
Said demarcation strip comprises top partition board portion and side separation board; Said top partition board portion is provided between the upper surface of upper surface and framework of said transformer, said side separate board from the both sides of this top partition board portion through the side of said transformer extend to said framework left surface side, right flank side and below side.
4. like the cooling device of each described transformer in the claim 1～3, it is characterized in that:
Said exhaust is configured so that to fan the rear side of central axis through the winding portion of said transformer with cabin fan.
5. like the cooling device of each described transformer in the claim 1～3, it is characterized in that:
Said exhaust is set up in parallel many with cabin fan along Width.
6. the cooling device of transformer as claimed in claim 4 is characterized in that:
Said exhaust is set up in parallel many with cabin fan along Width.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010191122A JP5549480B2 (en) | 2010-08-27 | 2010-08-27 | Transformer cooling system |
| JP2010-191122 | 2010-08-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102386571A true CN102386571A (en) | 2012-03-21 |
| CN102386571B CN102386571B (en) | 2015-04-01 |
Family
ID=45825695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110230011.5A Active CN102386571B (en) | 2010-08-27 | 2011-08-08 | Transformer cooling device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5549480B2 (en) |
| CN (1) | CN102386571B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832548B (en) * | 2012-09-10 | 2016-02-24 | 山东德佑电气股份有限公司 | Modular active filter |
| JP6007714B2 (en) * | 2012-10-09 | 2016-10-12 | 富士電機株式会社 | Transformer cooling system |
| CN103457176A (en) * | 2013-07-17 | 2013-12-18 | 万能亿自动化科技（苏州）有限公司 | Heat dissipation type power equipment box |
| KR102497141B1 (en) * | 2018-04-10 | 2023-02-07 | 엘에스일렉트릭(주) | Out-shell for transformer |
| JP6878686B2 (en) | 2019-04-22 | 2021-06-02 | 東芝三菱電機産業システム株式会社 | Transformer cooling structure |
| CN114203397A (en) * | 2021-12-18 | 2022-03-18 | 陈琳 | Direct current converter transformer |
| KR102409619B1 (en) * | 2022-04-13 | 2022-06-22 | (주)진전기엔지니어링 | Transformer cooling device for electric railway and its construction method |
| CN117277206B (en) * | 2023-11-23 | 2024-01-30 | 国网江苏省电力有限公司泰州供电分公司 | Relay protection device of power distribution network |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003153404A (en) * | 2001-11-13 | 2003-05-23 | Matsushita Electric Ind Co Ltd | Power receiving/distributing apparatus |
| US20030231467A1 (en) * | 2002-06-12 | 2003-12-18 | Replogle Kriss K. | Equipment enclosure with heat exchanger |
| JP2007267478A (en) * | 2006-03-28 | 2007-10-11 | Murata Mach Ltd | Control panel |
| JP2009076825A (en) * | 2007-09-25 | 2009-04-09 | Toshiba Mitsubishi-Electric Industrial System Corp | Transformer board |
| JP2009303354A (en) * | 2008-06-12 | 2009-12-24 | Fuji Electric Systems Co Ltd | Air cooling apparatus of transformer board |
| CN201527878U (en) * | 2009-08-21 | 2010-07-14 | 广州东芝白云菱机电力电子有限公司 | Transformer cooling mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02741U (en) * | 1988-06-13 | 1990-01-05 |
-
2010
- 2010-08-27 JP JP2010191122A patent/JP5549480B2/en active Active
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2011
- 2011-08-08 CN CN201110230011.5A patent/CN102386571B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003153404A (en) * | 2001-11-13 | 2003-05-23 | Matsushita Electric Ind Co Ltd | Power receiving/distributing apparatus |
| US20030231467A1 (en) * | 2002-06-12 | 2003-12-18 | Replogle Kriss K. | Equipment enclosure with heat exchanger |
| JP2007267478A (en) * | 2006-03-28 | 2007-10-11 | Murata Mach Ltd | Control panel |
| JP2009076825A (en) * | 2007-09-25 | 2009-04-09 | Toshiba Mitsubishi-Electric Industrial System Corp | Transformer board |
| JP2009303354A (en) * | 2008-06-12 | 2009-12-24 | Fuji Electric Systems Co Ltd | Air cooling apparatus of transformer board |
| CN201527878U (en) * | 2009-08-21 | 2010-07-14 | 广州东芝白云菱机电力电子有限公司 | Transformer cooling mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102386571B (en) | 2015-04-01 |
| JP2012050269A (en) | 2012-03-08 |
| JP5549480B2 (en) | 2014-07-16 |
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