CN102386571B - Transformer cooling device - Google Patents
Transformer cooling device Download PDFInfo
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- CN102386571B CN102386571B CN201110230011.5A CN201110230011A CN102386571B CN 102386571 B CN102386571 B CN 102386571B CN 201110230011 A CN201110230011 A CN 201110230011A CN 102386571 B CN102386571 B CN 102386571B
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- transformer
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- cooling air
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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 present invention relates to the cooling device to the transformer that the transformer be configured in framework cools.
Background technology
In semi-conductor electricity power conversion device, by the part forming the heat-producing devices such as semiconductor unit, cooling main circuit transformer of main circuit and the part cooled the control unit be made up of the electric equipment of the poor control printed circuit board of thermal endurance, be separated into three dishes (framework) respectively and receive.Especially, the dish (framework) of the main circuit transformer that storage caloric value is many, adopts the forced ventilation mode (such as with reference to patent documentation 1) being at least provided with air entry in front, being exhausted with cabin fan.In the conventional example that this patent documentation 1 is recorded, ventilating fan is configured in the top of the dish being accommodated with transformer in the mode that the central portion at fore-and-aft direction is relative with transformer from top, air entry is set at the positive basifacial of dish.And, at the guide duct that the rear side configuration of tray bottom combines with blowing fan, at the back side formation peristome of this guide duct towards transformer, divide air supply stream from the air outlet of guide duct to the back side of transformer by the part being taken into the extraneous air in dish by air entry.
In addition, also known transformer dish as described below (such as with reference to patent documentation 2): be provided with transformer side insulation plate, framework side insulating support unit and air-breathing cowling panel, described transformer side insulation plate is as framework inner space partition member, upper space and lower space will be separated in framework, and stop the cooling air produced by cooling fan mutually to circulate at upper space and lower space, and then, the cooling air guiding produced being rotated by cooling fan in framework is surrounded in the tubular insulant of the peripheral part of transformer coil, the coil of cooling transformer.
[patent documentation 1] Japanese Unexamined Patent Publication 2009-303354 publication
[patent documentation 2] Japanese Unexamined Patent Publication 2009-76825 publication
At this, in the conventional example that above-mentioned patent documentation 1 and patent documentation 2 are recorded, adopt forced exhaust mode, namely, only be taken into air from the face side of framework of storage transformer, make to be taken into cooling air in framework by around transformer, be externally vented by the cooling fan being configured in top.
But, in the conventional example that above-mentioned patent documentation 1 and patent documentation 2 are recorded, in order to the cooling air be taken in the front from framework is directed to around transformer, need blowing fan and guide duct, encirclement transformer coil peripheral part tubular insulant and cooling air is directed to the wind guiding mechanism of bottom of this tubular insulation division, there is complex structure and the unsolved problems such as framework maximization.
Summary of the invention
So the unsolved problem that the present invention is conceived to above-mentioned conventional example completes, and its object is to, provide a kind of can with the cooling device of the simple structure 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 storage transformer; Front and back will be separated into around above-mentioned transformer in this framework, form the demarcation strip in wind-tunnel portion in the rear side of this transformer; Relative with above-mentioned wind-tunnel portion, and be configured in the exhaust cabin fan of the upper surface of above-mentioned framework; Only at the cooling air air entry that the position relative with the winding portion of above-mentioned transformer in above-mentioned framework front is formed, and be only formed from the winding portion of above-mentioned cooling air air entry by above-mentioned transformer, then by the cooling air passage of above-mentioned wind-tunnel portion to above-mentioned exhaust cabin fan.
According to this structure, only formed from the winding portion of cooling air air entry by above-mentioned transformer, pass through the cooling air passage of wind-tunnel portion to above-mentioned exhaust cabin fan of the rear side of this winding portion again, the large cooling air of flow velocity can be passed through in the winding portion of transformer, the cooling effectiveness of transformer can be improved.
In addition, the cooling device of the transformer that another way of the present invention relates to, it is characterized in that: above-mentioned demarcation strip comprises upper part partition board portion and lateral separation plate portion, between the upper surface that above-mentioned upper part partition board portion is disposed in above-mentioned transformer and the upper surface of framework, above-mentioned lateral separation plate portion extends to side and the following side below of above-mentioned framework from the both sides of this upper part partition board portion by the side of above-mentioned transformer.
According to this structure, cover around transformer by upper part partition board portion and lateral separation plate portion, can form the wind-tunnel portion of the width corresponding with the width of transformer, the cooling air sucked from cooling air air entry, only by the winding portion of transformer, can improve the cooling effectiveness of transformer further.
In addition, the cooling device of the transformer that another way of the present invention relates to, it is characterized in that: above-mentioned demarcation strip comprises upper part partition board portion and lateral separation plate portion, between the upper surface that above-mentioned upper part partition board portion is disposed in above-mentioned transformer and the upper surface of framework, above-mentioned lateral separation plate portion extends to the left surface side of above-mentioned framework, right flank side and following side from the both sides of this upper part partition board portion by the side of above-mentioned transformer.
According to this structure, covered around transformer by upper part partition board portion and lateral separation plate portion, before and after framework can being divided into, the cooling air sucked from cooling air air entry, only by the winding portion of transformer, can improve the cooling effectiveness of transformer further.
In addition, the cooling device of the transformer that another way of the present invention relates to, is characterized in that: above-mentioned exhaust cabin fan is configured to fan the rear side of central axis by the winding portion of above-mentioned transformer.
According to this structure, the cooling air that the winding portion by transformer can be arrived rear side with exhaust cabin fan is reliably discharged.
In addition, the cooling device of the transformer that another way of the present invention relates to, is characterized in that: above-mentioned exhaust cabin fan is set up in parallel multiple stage along Width.
According to this structure, with multiple stage exhaust cabin fan, the cooling air of the winding by transformer can be discharged, the air quantity of cooling air can be improved, improve the cooling effectiveness of transformer.
The following describes effect of the present invention.
According to the present invention, around transformer, demarcation strip is set, wind-tunnel portion is formed with the rear side at transformer, relative with this wind-tunnel portion arranges exhaust cabin fan at the upper surface of framework, and, only cooling air air entry is set on the position relative with the winding of transformer of framework face side, by above-mentioned simple structure, can only be formed from the winding portion of cooling air air entry by above-mentioned transformer, again by the cooling air passage of wind-tunnel portion to above-mentioned exhaust cabin fan, the large cooling air of flow velocity can be passed through in the winding portion of transformer, there is the effect of the cooling effectiveness that can improve transformer.
Accompanying drawing explanation
Fig. 1 is the figure representing the first execution mode of the present invention, wherein, a () is front elevation, b () is the front elevation after unloading 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 representing the second execution mode of the present invention, and wherein, (a) is front elevation, and (b) is the front elevation after unloading front plate, and (c) is the sectional view on the C-C line of (a).
Description of reference numerals:
1-framework
1a-front panel
1b-rear board
1c-top panel
1d-bottom panel
1e-Left-Hand Panel
1f-right panel
2-main circuit transformer
3-shutter door
4u ~ 4w-cooling air air entry
6-demarcation strip
6a-upper part partition board portion
6b ~ 6e-sidepiece divider plate portions
7-wind-tunnel portion
8a, 8b-exhaust cabin fan
Embodiment
Below, embodiments of the present invention are described, in the following embodiments, although done various restriction to inscape, kind, combination, position, shape, quantity and relative configuration etc. with reference to accompanying drawing, but these are only illustrate, and the present invention is not limited to following execution mode.
Fig. 1 (a) ~ (d) is the figure representing the first execution mode of the present invention.In figure, Reference numeral 1 is framework (dish), and this framework 1 is formed as rectangular shape by front panel 1a, rear board 1b, top panel 1c, bottom panel 1d, Left-Hand Panel 1e and right panel 1f.Substantially central portion in this framework 1 is accommodated with the main circuit transformer 2 of 3 phases to make three-phase windings Lu, Lv and Lw along the state that Width arranges.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 position relative with the downside of the winding L u of main circuit transformer 2, Lv and Lw of the shutter door 3 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, demarcation strip 6 is configured with between the top of the main circuit transformer 2 in the inside of framework 1 and the top panel 1c of framework 1.This demarcation strip 6 is formed the U-shaped of the latter half of encirclement of main circuit transformer 2 from plane by upper part partition board portion 6a, connected sidepiece divider plate portions 6b and 6c.
Extend along Width between the top of the main circuit transformer 2 of upper part partition board portion 6a on the centre position of the fore-and-aft direction of framework 1 and the top panel 1c of framework 1 and configure.In addition, sidepiece divider plate portions 6b and 6c is configured to: from the two ends, left and right of upper part partition board portion 6a rearward, the rear board 1b of framework 1 is extended in parallel with left and right sides panel 1e and 1f, and extend to the bottom panel 1d of framework 1, cover the degree about the winding L u of main circuit transformer 2 and the side half of Lw.
Further, wind-tunnel portion 7 is defined by upper part partition board portion 6a, sidepiece divider plate portions 6b, 6c of demarcation strip 6 and the rear side of main circuit transformer 2.
In addition, in the position relative with wind-tunnel portion 7 of the top panel 1c of framework 1, be configured with 2 exhaust cabin fans 8a, 8b.Above-mentioned exhaust cabin fan 8a, 8b to make fan center axis Lf than the mode of the back position backrest surface side slightly of main circuit transformer 2, are configured in top panel 1c with leaving predetermined distance along Width separately.
Below, the action of above-mentioned first execution mode is described.
Exhaust cabin fan 8a, 8b are configured in the top in the wind-tunnel portion 7 surrounded by demarcation strip 6, therefore, by making above-mentioned exhaust cabin fan 8a, 8b rotate, extraneous air is taken in framework 1 from the cooling air air entry 4u ~ 4w of the front panel 1a being configured in framework 1 as cooling air.
The latter half of of main circuit transformer 2 is surrounded by the upper part partition board portion 6a of demarcation strip 6, sidepiece divider plate portions 6b and 6c, defines wind-tunnel portion 7 by the back part of above-mentioned demarcation strip 6 and main circuit transformer 2.And, exhaust cabin fan 8a, 8b is provided with in the upper side in wind-tunnel portion 7, therefore, the cooling air attracted with cabin fan 8a, 8b by exhaust is as shown in Fig. 1 (c) and (d), from cooling air air entry 4u, 4v and 4w by around winding L u, Lv and Lw of main circuit transformer 2, enter wind-tunnel portion 7, form the cooling air passage from this wind-tunnel portion 7 to exhaust cabin fan 8a and 8b, carry out air blast cooling (Air flow).
At this moment, the air quantity of the cooling air be inhaled into from cooling air air entry 4u ~ 4w and wind speed, with the air quantity of the cooling air of being discharged by exhaust cabin fan 8a and 8b and wind speed roughly equal, from whole air quantity of the cooling air that above-mentioned cooling air air entry 4u ~ 4w is inhaled into, around the winding L u ~ Lw of main circuit transformer 2, be discharged to the outside by exhaust cabin fan 8a and 8b.Therefore, it is possible to the air quantity improved by the cooling air around the winding L u ~ Lw of main circuit transformer 2 and wind speed, can fully cool main circuit transformer 2, improve cooling effect.
And, for obtaining the structure of above-mentioned effect, that cooling air air entry 4u ~ 4w is set at the front panel 1f relative with main circuit transformer 2 of framework 1, and, configuration is by 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 cabin fan 8a, 8b are set in the upper side in this wind-tunnel portion 7, effective cooling air passage can be formed with above-mentioned simple structure.Thus, main circuit transformer 2 can set premised on air blast cooling, can realize miniaturization.In addition, because the cooling air air entry 4u ~ 4w only arranged from the face side in framework 1 carries out air-breathing, therefore, there is no need to arrange air entry in the rear side of framework 1, there is no need to arrange air-breathing space in the rear side of framework 1, thus as shown in Fig. 1 (c) and (d), the rear side of framework 1 and wall etc. can be made to configure contiguously.
Therefore, it is possible to realize the miniaturization of framework 1 and the downsizing of installation space that are accommodated with main circuit transformer 2.
In addition, owing to being surrounded the side of main circuit transformer 2 by sidepiece divider plate portions 6b and 6c of demarcation strip 6, therefore the width in wind-tunnel portion 7 and the width of main circuit transformer 2 roughly equal, the width of cooling air passage can be set to roughly certain, reduce the resistance of ducting of cooling air, can under laminar condition, cooling air be passed through, heat exchange can be carried out at main circuit transformer 2, discharge the cooling air with heat well.
In the above-described first embodiment, the situation that sidepiece divider plate portions 6b, 6c of demarcation strip 6 and left and right sides panel 1e, 1f of framework 1 is formed abreast is illustrated, but the present invention is not limited thereto, also can from plane (overlooking) time, from upper part partition board portion 6a tilt to extend to the rear board 1b of framework 1 and the boundary position of left and right sides panel 1e, 1f or its near, wind-tunnel portion 7 is formed in the rear side of main circuit transformer 2 in a word.
Below, with reference to Fig. 2, the second execution mode of the present invention is described.
In this second embodiment, the shape of demarcation strip 6 is changed.
Namely, second execution mode is in the structure of Fig. 1 of above-mentioned first execution mode, eliminate sidepiece divider plate portions 6b and 6c of demarcation strip 6, as as shown in Fig. 2 (b) and (c), replace the two side ends at upper part partition board portion 6a, be formed with sidepiece divider plate portions 6d and 6e, they arrive left and right sides panel 1e, 1f of framework 1, and arrive bottom panel 1d by the side of main circuit transformer 2, there is the structure in addition identical with above-mentioned Fig. 1.Therefore, same reference numerals is marked with to the part corresponding with Fig. 1, omits their detailed description.
According to this second execution mode, separated before and after framework 1 by upper part partition board portion 6a, sidepiece divider plate portions 6d, 6e of demarcation strip 6 and main circuit transformer 2, it is latter half of becomes wind-tunnel portion 7.Therefore, as shown in Fig. 2 (c), by rotary actuation exhaust cabin fan 8a, 8b, formed from cooling air air entry 4u ~ 4w by around the winding L u ~ Lw of main circuit transformer 2, arrive the cooling air passage of exhaust cabin fan 8a, 8b from wind-tunnel portion 7, the action effect identical with above-mentioned first execution mode can be obtained.In this case, demarcation strip 6 can be formed as tabular, therefore, it is possible to make simplifying the structure of demarcation strip 6 by upper part partition board portion 6a, sidepiece divider plate portions 6d and 6e.
In above-mentioned first and second execution modes, situation face side in framework 1 being formed with to 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 of 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, can apply the present invention when any transformer being accommodated in framework 1.
Above with reference to illustrating embodiments of the present invention, but the present invention is not limited to above-mentioned execution mode.Can do all changes within the scope of technological thought of the present invention, they all belong to protection scope of the present invention.
Claims (2)
1. a cooling device for transformer, is characterized in that, comprising:
The framework of storage transformer;
To front and back be separated into around described transformer, form the demarcation strip in wind-tunnel portion in the rear side of this transformer in this framework;
Relative with described wind-tunnel portion, and be configured in the exhaust cabin fan of the upper surface of described framework; With
The cooling air air entry only formed in the position relative with the winding portion of described transformer in described framework front,
And be only formed from the winding portion of described cooling air air entry by described transformer, then by the cooling air passage of described wind-tunnel portion to described exhaust cabin fan,
Described exhaust cabin fan is configured to fan the rear side of central axis by the winding portion of described transformer,
Described demarcation strip comprises upper part partition board portion and lateral separation plate portion, between the upper surface that described upper part partition board portion is disposed in described transformer and the upper surface of framework, described lateral separation plate portion extends to rear board and the bottom panel of described framework from the both sides of this upper part partition board portion by the side of described transformer.
2. the cooling device of transformer as claimed in claim 1, is characterized in that:
Described exhaust cabin fan is set up in parallel multiple stage along Width.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-191122 | 2010-08-27 | ||
| JP2010191122A JP5549480B2 (en) | 2010-08-27 | 2010-08-27 | Transformer cooling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102386571A CN102386571A (en) | 2012-03-21 |
| CN102386571B true CN102386571B (en) | 2015-04-01 |
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| 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 (6)
| 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 |
| 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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02741U (en) * | 1988-06-13 | 1990-01-05 | ||
| JP2003153404A (en) * | 2001-11-13 | 2003-05-23 | Matsushita Electric Ind Co Ltd | Power receiving/distributing apparatus |
| US6704198B2 (en) * | 2002-06-12 | 2004-03-09 | Avava Technology Corp. | Equipment enclosure with heat exchanger |
| JP4543333B2 (en) * | 2006-03-28 | 2010-09-15 | 村田機械株式会社 | control panel |
| JP4980187B2 (en) * | 2007-09-25 | 2012-07-18 | 東芝三菱電機産業システム株式会社 | Transformer panel |
| JP5125785B2 (en) * | 2008-06-12 | 2013-01-23 | 富士電機株式会社 | Air cooling device for transformer panel |
-
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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
|---|---|
| JP5549480B2 (en) | 2014-07-16 |
| JP2012050269A (en) | 2012-03-08 |
| CN102386571A (en) | 2012-03-21 |
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