JP2008148421A - Uninterruptible power supply unit or inverter apparatus - Google Patents

Uninterruptible power supply unit or inverter apparatus Download PDF

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JP2008148421A
JP2008148421A JP2006331483A JP2006331483A JP2008148421A JP 2008148421 A JP2008148421 A JP 2008148421A JP 2006331483 A JP2006331483 A JP 2006331483A JP 2006331483 A JP2006331483 A JP 2006331483A JP 2008148421 A JP2008148421 A JP 2008148421A
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transformer
partition plate
panel
power supply
uninterruptible power
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JP2006331483A
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JP5292694B2 (en
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Koji Murata
幸司 村田
Hiroyuki Hiyoshi
広行 日吉
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Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
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Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an uninterruptible power supply unit which can improve the cooling effect of a mounted transformer. <P>SOLUTION: It includes a suction port 1b at the bottom of a board 1 and includes an exhaust port 1c at the top of the board 1, and includes a partition plate 8 which partitions the interior of the board 1 above and below via small space d around the coil part 2b of the transformer 2, and the partition plate 8 is provided aslant around the coil part 2b. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

この発明は、盤内に収納され、変圧器、インバータ部等を実装した無停電電源装置又はインバータ装置に関し、特にその変圧器の冷却構造に関するものである。   The present invention relates to an uninterruptible power supply device or an inverter device housed in a panel and mounted with a transformer, an inverter unit, and the like, and more particularly to a cooling structure for the transformer.

インバータ装置やこれに直流電源を付加した無停電電源装置においては、変圧器を実装しており、この変圧器の冷却構造においては、小形化するために、変圧器を風冷仕様とすることにより部品を小さくしている。しかし、変圧器を風冷仕様とした場合、コイル部の内部及びコイル部の表面に風を通して冷却する必要がある。通常、コイル部における冷却風の風速としては、３ｍ／Ｓ程度に部品設計されている。   In the inverter device and the uninterruptible power supply with DC power added to it, a transformer is mounted. In order to reduce the size of the cooling structure of this transformer, the transformer should be air-cooled. Parts are made smaller. However, when the transformer is air-cooled, it is necessary to cool the inside of the coil portion and the surface of the coil portion with wind. Usually, the parts are designed to be about 3 m / S as the cooling air velocity in the coil section.

図３（ａ）〜（ｃ）は従来の無停電電源装置又はインバータ装置の縦断側面図、縦断正面図及び変圧器部の横断平面図であり、１は無停電電源装置又はインバータ装置を収納した盤、１ａはその扉である。盤１内の下部には三相の変圧器２が設けられ、変圧器２は鉄心部２ａとコイル部２ｂとを備えている。又、盤１内の中央部にはインバータユニット３及びコンデンサユニット４が設けられ、盤１の上部には冷却ファン５が設けられる。又、盤１の下部の前部には吸気孔１ｂが設けられ、盤１の上部には排気孔１ｃが設けられる。また、盤１内の変圧器２のコイル部２ｂの中央部の高さには略水平に仕切板６を設け、盤１内を上下に仕切る。コイル部２ｂと仕切板６との隙間ｄは極力小さくする。仕切板６は盤１内に設けた支持部７及び盤１の内壁に支持される。   3 (a) to 3 (c) are a longitudinal side view, a longitudinal front view, and a transverse plan view of a transformer section of a conventional uninterruptible power supply or inverter device, wherein 1 houses the uninterruptible power supply device or inverter device. Board 1a is the door. A three-phase transformer 2 is provided in the lower part of the panel 1, and the transformer 2 includes an iron core part 2a and a coil part 2b. An inverter unit 3 and a capacitor unit 4 are provided at the center of the panel 1, and a cooling fan 5 is provided at the upper part of the panel 1. In addition, an intake hole 1b is provided in the front part of the lower part of the board 1, and an exhaust hole 1c is provided in the upper part of the board 1. Further, a partition plate 6 is provided substantially horizontally at the height of the central portion of the coil portion 2b of the transformer 2 in the panel 1 to partition the interior of the panel 1 up and down. The gap d between the coil portion 2b and the partition plate 6 is made as small as possible. The partition plate 6 is supported by a support portion 7 provided in the board 1 and an inner wall of the board 1.

上記構成において、冷却ファン５を駆動すると、冷却風は矢印に示すように、盤１の下部の吸入孔１ｂから吸入され、コイル部２ｂと仕切板６との隙間ｄを通ってコイル２ｂの表面に３ｍ／Ｓ以上の冷却風となって通流し、コンデンサユニット４及びインバータユニット３も冷却して排気孔１ｃから排出される。又、盤１内を仕切板６により仕切ったことにより、コイル部２ｂの内部にも冷却風が通流する。   In the above configuration, when the cooling fan 5 is driven, the cooling air is sucked from the suction hole 1b at the lower part of the panel 1 as shown by the arrow, passes through the gap d between the coil portion 2b and the partition plate 6, and the surface of the coil 2b. Then, the cooling air flows at 3 m / S or more, and the capacitor unit 4 and the inverter unit 3 are also cooled and discharged from the exhaust hole 1c. Further, since the inside of the panel 1 is partitioned by the partition plate 6, the cooling air flows through the inside of the coil portion 2b.

なお、この出願の発明に関連する先行技術文献情報としては次のものがある。
特開平６−３３８４２３号公報 特開平９−１４００１３号公報 特開２０００−２３２０２２号公報 Note that prior art document information relating to the invention of this application includes the following.
JP-A-6-338423 JP-A-9-140013 JP 2000-2322022 A

上記したように、従来の無停電電源装置又はインバータ装置においては、盤１内に仕切板６を設けたことにより、コイル部２ｂの表面及び内部に冷却風が基準の風速で強制的に通るようになった。しかしながら、コイル部２ｂの表面の中央部においては、仕切板６の部分では隙間ｄが小さいので風速は上がるが、コイル部２ｂの上部及び下部では仕切板６が無いので、風速が上がらず、変圧器２の十分な冷却効果は得られなかった。   As described above, in the conventional uninterruptible power supply device or inverter device, by providing the partition plate 6 in the panel 1, the cooling air is forced to pass through the surface and the inside of the coil portion 2b at the standard wind speed. Became. However, in the central portion of the surface of the coil portion 2b, the wind speed increases because the gap d is small in the partition plate 6, but the wind speed does not increase because there is no partition plate 6 in the upper and lower portions of the coil portion 2b. A sufficient cooling effect of the vessel 2 was not obtained.

この発明は上記のような課題を解決するために成されたものであり、実装した変圧器の冷却効果を向上することができる無停電電源装置又はインバータ装置を得ることを目的とする。   This invention was made in order to solve the above subjects, and it aims at obtaining the uninterruptible power supply device or inverter device which can improve the cooling effect of the mounted transformer.

この発明の請求項１に係る無停電電源装置又はインバータ装置は、盤内に収納され、変圧器、インバータ部を実装した無停電電源装置又はインバータ装置において、盤の下部に吸気孔を設けるとともに、盤の上部に排気孔を設け、変圧器のコイル部分の周囲に小さな隙間を介して盤内を上下に仕切る仕切板を設け、この仕切板は変圧器のコイル部分の周囲においては斜めに設けたものである。   The uninterruptible power supply device or the inverter device according to claim 1 of the present invention is housed in a panel, and in the uninterruptible power supply device or the inverter device in which the transformer and the inverter unit are mounted, an intake hole is provided in the lower part of the panel, An exhaust hole is provided in the upper part of the panel, and a partition plate is provided around the coil part of the transformer through a small gap so that the interior of the panel is vertically divided. The partition plate is provided obliquely around the coil part of the transformer. Is.

請求項２に係る無停電電源装置又はインバータ装置は、盤内に収納され、変圧器、インバータ部を実装した無停電電源装置又はインバータ装置において、盤の下部に吸気孔を設けるとともに、盤の上部に排気孔を設け、変圧器のコイル部分の周囲に小さな隙間を介して盤内を上下に仕切る仕切板を設け、この仕切板は変圧器のコイル部分の周囲においてコイル部分の少なくとも下部及び上部の２箇所に設けたものである。   The uninterruptible power supply device or inverter device according to claim 2 is housed in a panel, and in the uninterruptible power supply device or inverter device in which a transformer and an inverter unit are mounted, an intake hole is provided in a lower part of the panel, and an upper part of the panel An exhaust hole is provided in the transformer, and a partition plate is provided around the coil portion of the transformer through a small gap. The partition plate is provided at least at the lower and upper portions of the coil portion around the coil portion of the transformer. It is provided in two places.

以上のようにこの発明の請求項１によれば、変圧器のコイル部分の周囲に小さな隙間を介して盤内を上下に仕切る仕切板を設け、この仕切板は変圧器のコイル部分の周囲においては斜めに設けており、コイル部の表面と仕切板６との間における冷却風の通過する長さが長くなり、冷却風が多く流れ、熱伝達量が増えることにより、変圧器の冷却効果が促進される。   As described above, according to the first aspect of the present invention, the partition plate for partitioning the inside of the panel up and down through the small gap is provided around the coil portion of the transformer, and the partition plate is provided around the coil portion of the transformer. Is provided obliquely, and the length of passage of the cooling air between the surface of the coil portion and the partition plate 6 is increased, a large amount of cooling air flows, and the amount of heat transfer increases, so that the cooling effect of the transformer is increased. Promoted.

請求項２によれば、変圧器のコイル部分の周囲に小さな隙間を介して盤内を上下に仕切る仕切板を設け、この仕切板は変圧器のコイル部分の周囲においてコイル部分の少なくとも下部及び上部の２箇所に設けており、吸気孔から吸入した冷却風は下部の仕切板の部分において風速が上がるとともに、上部の仕切板の部分においても風速が上がり、コイル部の表面の冷却効果が上がり、変圧器の冷却効果が向上する。   According to claim 2, the partition plate for partitioning the inside of the panel up and down through a small gap around the coil portion of the transformer is provided, and the partition plate is at least a lower portion and an upper portion of the coil portion around the coil portion of the transformer. The cooling air sucked from the air intake hole is increased in the lower partition plate portion, the wind speed is increased in the upper partition plate portion, and the cooling effect on the surface of the coil portion is increased. The cooling effect of the transformer is improved.

実施最良形態１
以下、この発明を実施するための最良の形態を図面とともに説明する。図１（ａ），（ｂ）はこの発明の実施最良形態１による無停電電源装置又はインバータ装置の縦断側面図及び縦断正面図であり、８は変圧器２のコイル部２ｂの周囲に小さな隙間ｄを介して設けられた仕切板であり、仕切板８は盤１内を上下に仕切り、かつコイル部２ｂの周囲、特に側部においては斜めに設けられている。仕切板８は支持部７及び盤１の内壁に支持される。その他の構成は従来と同様である。 Best Embodiment 1
The best mode for carrying out the present invention will be described below with reference to the drawings. 1A and 1B are a longitudinal side view and a longitudinal front view of an uninterruptible power supply or inverter device according to Embodiment 1 of the present invention, and 8 is a small gap around the coil portion 2b of the transformer 2. FIG. The partition plate 8 partitions the inside of the panel 1 up and down and is provided obliquely around the coil portion 2b, particularly in the side portion. The partition plate 8 is supported by the support portion 7 and the inner wall of the panel 1. Other configurations are the same as those of the prior art.

上記構成において、冷却ファン５を駆動すると、従来と同様に、冷却風は矢印に示すように、盤１の下部の吸入孔１ｂから吸入され、コイル部２ｂと仕切板８との隙間ｄを通ってコイル２ｂの表面に３ｍ／Ｓ以上の冷却風となって通流し、コンデンサユニット４及びインバータユニット３も冷却して排気孔１ｃから排出される。又、盤１内を仕切板６により仕切ったことにより、コイル部２ｂの内部にも冷却風が通流する。ここで、コイル部２ｂの周囲、特に側部においては仕切板８が斜めに設けられているので、コイル部２ｂの表面と仕切板８との間における側部から見た冷却風の通過する長さがＬ１となり、従来のＬ２に比べて長くなり、冷却風が多く流れ、熱伝達量が増えることにより、コイル部２ｂの表面における冷却効果が向上する。   In the above configuration, when the cooling fan 5 is driven, the cooling air is sucked from the suction hole 1b at the lower part of the panel 1 and passes through the gap d between the coil portion 2b and the partition plate 8, as shown by the arrow, as in the prior art. As a result, cooling air of 3 m / S or more flows through the surface of the coil 2b, and the capacitor unit 4 and the inverter unit 3 are also cooled and discharged from the exhaust hole 1c. Further, since the inside of the panel 1 is partitioned by the partition plate 6, the cooling air flows through the inside of the coil portion 2b. Here, since the partition plate 8 is provided obliquely around the coil portion 2 b, particularly in the side portion, the length of the cooling air as viewed from the side portion between the surface of the coil portion 2 b and the partition plate 8 passes. L1 becomes longer than that of the conventional L2, a large amount of cooling air flows, and the amount of heat transfer increases, thereby improving the cooling effect on the surface of the coil portion 2b.

実施最良形態１においては、上記のようにコイル部２ｂの表面と仕切板８との間における側部から見た冷却風の通過する長さが長くなるので、冷却風が多く流れ、熱伝達量が増えることにより、コイル部２ｂの表面における冷却効果が向上し、変圧器２の冷却効果が促進される。   In the first embodiment, the length of passage of the cooling air as viewed from the side between the surface of the coil portion 2b and the partition plate 8 is increased as described above, so that a large amount of cooling air flows and the heat transfer amount Is increased, the cooling effect on the surface of the coil portion 2b is improved, and the cooling effect of the transformer 2 is promoted.

なお、実施最良形態１においては、仕切板８は、前側を高くし、後側を低くして斜めに設けたが、前後を逆にしてもよい。又、仕切板８の斜め部分の長さは長い方が良いが、実装上の都合もあるので、特に長さは規定しない。   In the first embodiment, the partition plate 8 is provided obliquely with the front side raised and the rear side lowered, but the front and rear may be reversed. In addition, the length of the oblique portion of the partition plate 8 is preferably long, but the length is not particularly specified because of mounting convenience.

実施最良形態２
図２（ａ），（ｂ）は実施最良形態２による無停電電源装置又はインバータ装置の縦断側面図及び縦断正面図を示し、９，１０は変圧器２のコイル部２ｂの周囲に小さな隙間ｄを介して設けられた仕切板であり、仕切板９，１０は盤１内を上下に仕切り、仕切板９，１０はそれぞれコイル部２ｂの周囲の上部及び下部に略水平に設けられる。仕切板９，１０は支持部７及び盤１の内壁に支持される。その他の構成は従来と同様である。 Embodiment 2
2 (a) and 2 (b) show a longitudinal side view and a longitudinal front view of the uninterruptible power supply device or inverter device according to the second embodiment, and 9, 10 is a small gap d around the coil portion 2b of the transformer 2. The partition plates 9 and 10 partition the inside of the board 1 up and down, and the partition plates 9 and 10 are provided substantially horizontally at the upper and lower portions around the coil portion 2b, respectively. The partition plates 9 and 10 are supported by the support portion 7 and the inner wall of the panel 1. Other configurations are the same as those of the prior art.

上記構成において、冷却ファン５を駆動すると、従来と同様に、冷却風は矢印に示すように、盤１の下部の吸入孔１ｂから吸入され、コイル部２ｂと下部の仕切板１０との隙間ｄを通り、さらにコイル部２ｂと上部の仕切板９との隙間を通ってコイル２ｂの表面に３ｍ／Ｓ以上の冷却風となって通流し、コンデンサユニット４及びインバータユニット３も冷却して排気孔１ｃから排出される。又、盤１内を仕切板９，１０により仕切ったことにより、コイル部２ｂの内部にも冷却風が通流する。冷却風はコイル部２ｂと下部の仕切板１０との間で流路が狭くなるので風速が上がり、またコイル部２ｂと上部の仕切板９との間で流路が狭くなるので風速が上がる。     In the above configuration, when the cooling fan 5 is driven, the cooling air is sucked from the lower suction hole 1b of the panel 1 and the gap d between the coil portion 2b and the lower partition plate 10 as shown by the arrow, as in the prior art. Through the gap between the coil portion 2b and the upper partition plate 9 and the cooling air of 3 m / S or more flows through the surface of the coil 2b, and the condenser unit 4 and the inverter unit 3 are also cooled to exhaust holes. It is discharged from 1c. Further, since the inside of the panel 1 is partitioned by the partition plates 9 and 10, the cooling air flows through the inside of the coil portion 2b. The cooling air has a narrow flow path between the coil portion 2b and the lower partition plate 10, so that the wind speed is increased, and the flow path is narrowed between the coil portion 2b and the upper partition plate 9, so that the wind speed is increased.

実施最良形態２においては、コイル部２ｂと下部の仕切板１０との間において風速が上がり、またコイル部２ｂと上部の仕切板９との間において風速が上がるので、コイル部２ｂの表面の冷却効果が向上し、変圧器２の冷却効果が向上する。   In the second embodiment, the wind speed increases between the coil portion 2b and the lower partition plate 10, and the wind speed increases between the coil portion 2b and the upper partition plate 9, so that the surface of the coil portion 2b is cooled. The effect is improved and the cooling effect of the transformer 2 is improved.

なお、実施最良形態２においては、コイル部２ｂの周囲の下部及び上部の２箇所に仕切板９，１０を設けたが、仕切板をより多く設けても良い。   In the second embodiment, the partition plates 9 and 10 are provided at the lower and upper portions around the coil portion 2b. However, more partition plates may be provided.

この発明の実施最良形態１による無停電電源装置又はインバータ装置の縦断側面図及び縦断正面図である。It is the vertical side view and vertical front view of the uninterruptible power supply device or inverter apparatus by Embodiment 1 of this invention. 実施最良形態２による無停電電源装置又はインバータ装置の縦断側面図及び縦断正面図である。It is the vertical side view and vertical front view of the uninterruptible power supply or inverter device by Embodiment 2. 従来の無停電電源装置又はインバータ装置の縦断側面図、縦断正面図及び変圧器部分の横断平面図である。It is the vertical side view of a conventional uninterruptible power supply device or an inverter device, a vertical front view, and a transverse plane view of a transformer part.

符号の説明Explanation of symbols

１…盤
１ｂ…吸気孔
１ｃ…排気孔
２…変圧器
２ａ…鉄心部
２ｂ…コイル部
３…インバータユニット
５…冷却ファン
８〜１０…仕切板 DESCRIPTION OF SYMBOLS 1 ... Panel 1b ... Intake hole 1c ... Exhaust hole 2 ... Transformer 2a ... Iron core part 2b ... Coil part 3 ... Inverter unit 5 ... Cooling fan 8-10 ... Partition plate

Claims (2)

盤内に収納され、変圧器、インバータ部を実装した無停電電源装置又はインバータ装置において、盤の下部に吸気孔を設けるとともに、盤の上部に排気孔を設け、変圧器のコイル部分の周囲に小さな隙間を介して盤内を上下に仕切る仕切板を設け、この仕切板は変圧器のコイル部分の周囲においては斜めに設けたことを特徴とする無停電電源装置又はインバータ装置。   In an uninterruptible power supply or inverter device that is housed in a panel and has a transformer and an inverter mounted, an intake hole is provided in the lower part of the panel and an exhaust hole is provided in the upper part of the panel, around the coil part of the transformer. An uninterruptible power supply device or an inverter device, characterized in that a partition plate for vertically partitioning the inside of the panel through a small gap is provided, and this partition plate is provided obliquely around the coil portion of the transformer. 盤内に収納され、変圧器、インバータ部を実装した無停電電源装置又はインバータ装置において、盤の下部に吸気孔を設けるとともに、盤の上部に排気孔を設け、変圧器のコイル部分の周囲に小さな隙間を介して盤内を上下に仕切る仕切板を設け、この仕切板は変圧器のコイル部分の周囲においてコイル部分の少なくとも下部及び上部の２箇所に設けたことを特徴とする無停電電源装置又はインバータ装置。   In an uninterruptible power supply or inverter device that is housed in a panel and has a transformer and an inverter mounted, an intake hole is provided in the lower part of the panel and an exhaust hole is provided in the upper part of the panel, around the coil part of the transformer. An uninterruptible power supply characterized in that a partition plate for vertically partitioning the inside of the panel through a small gap is provided, and this partition plate is provided at least at the lower part and the upper part of the coil part around the coil part of the transformer Or an inverter device.
JP2006331483A 2006-12-08 2006-12-08 Uninterruptible power supply or inverter device Expired - Fee Related JP5292694B2 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008302548A (en) * 2007-06-06 2008-12-18 Kyocera Mita Corp Cooling structure of heating element and image forming apparatus
JP2011071190A (en) * 2009-09-24 2011-04-07 Toshiba Mitsubishi-Electric Industrial System Corp Multiple transformer device
JP2013004598A (en) * 2011-06-14 2013-01-07 Fuji Electric Co Ltd Cooling apparatus for transformer
JP2014078542A (en) * 2012-10-09 2014-05-01 Fuji Electric Co Ltd Cooling device for transformer
CN103943311A (en) * 2014-03-31 2014-07-23 昆山达功电子有限公司 Transformer shell capable of preventing winding set from being overheated

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS639193U (en) * 1986-07-02 1988-01-21
JPH02129858A (en) * 1988-11-10 1990-05-17 Sanyo Electric Co Ltd Cooling plate for fuel cell
JPH05179902A (en) * 1992-01-07 1993-07-20 Mitsubishi Heavy Ind Ltd Gas turbine air-cooled cascade blade
JPH0736513U (en) * 1993-12-10 1995-07-04 河村電器産業株式会社 Airflow rectifier for cubicle type high voltage power receiving equipment
JP2000232022A (en) * 1999-02-12 2000-08-22 Toshiba Corp Forced ventilation type transformer box
JP2003287376A (en) * 2002-03-28 2003-10-10 Meidensha Corp Heat sink and element cooler composed of this heat sink
JP2003287377A (en) * 2002-03-28 2003-10-10 Meidensha Corp Element cooler
JP2004071594A (en) * 2002-08-01 2004-03-04 Meidensha Corp Cooling structure and power converter using it
JP2006087269A (en) * 2004-09-17 2006-03-30 Fuji Electric Systems Co Ltd Cooler for power converter
JP2006166643A (en) * 2004-12-09 2006-06-22 Meidensha Corp Cooling apparatus of transformer board

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS639193U (en) * 1986-07-02 1988-01-21
JPH02129858A (en) * 1988-11-10 1990-05-17 Sanyo Electric Co Ltd Cooling plate for fuel cell
JPH05179902A (en) * 1992-01-07 1993-07-20 Mitsubishi Heavy Ind Ltd Gas turbine air-cooled cascade blade
JPH0736513U (en) * 1993-12-10 1995-07-04 河村電器産業株式会社 Airflow rectifier for cubicle type high voltage power receiving equipment
JP2000232022A (en) * 1999-02-12 2000-08-22 Toshiba Corp Forced ventilation type transformer box
JP2003287376A (en) * 2002-03-28 2003-10-10 Meidensha Corp Heat sink and element cooler composed of this heat sink
JP2003287377A (en) * 2002-03-28 2003-10-10 Meidensha Corp Element cooler
JP2004071594A (en) * 2002-08-01 2004-03-04 Meidensha Corp Cooling structure and power converter using it
JP2006087269A (en) * 2004-09-17 2006-03-30 Fuji Electric Systems Co Ltd Cooler for power converter
JP2006166643A (en) * 2004-12-09 2006-06-22 Meidensha Corp Cooling apparatus of transformer board

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008302548A (en) * 2007-06-06 2008-12-18 Kyocera Mita Corp Cooling structure of heating element and image forming apparatus
JP2011071190A (en) * 2009-09-24 2011-04-07 Toshiba Mitsubishi-Electric Industrial System Corp Multiple transformer device
JP2013004598A (en) * 2011-06-14 2013-01-07 Fuji Electric Co Ltd Cooling apparatus for transformer
JP2014078542A (en) * 2012-10-09 2014-05-01 Fuji Electric Co Ltd Cooling device for transformer
CN103943311A (en) * 2014-03-31 2014-07-23 昆山达功电子有限公司 Transformer shell capable of preventing winding set from being overheated

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