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JP7600438B2 - Static Inductor Unit - Google Patents

Static Inductor Unit Download PDF

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JP7600438B2
JP7600438B2 JP2023572305A JP2023572305A JP7600438B2 JP 7600438 B2 JP7600438 B2 JP 7600438B2 JP 2023572305 A JP2023572305 A JP 2023572305A JP 2023572305 A JP2023572305 A JP 2023572305A JP 7600438 B2 JP7600438 B2 JP 7600438B2
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chamber
heat dissipation
opening
stationary
dissipation duct
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JPWO2023132047A1 (en
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雅斗 櫻井
恒夫 小林
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Toshiba Corp
Toshiba Energy Systems and Solutions Corp
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    • 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
    • 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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/20—Cooling by special gases or non-ambient air

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Transformer Cooling (AREA)

Description

本発明の実施形態は、静止誘導器ユニットに関する。 An embodiment of the present invention relates to a stationary inductor unit.

静止誘導器ユニットは、静止誘導器と、放熱器と、を有する。静止誘導器は、変圧器と、絶縁媒体と、を有する。放熱器は、静止誘導器に接続され、絶縁媒体が流通する。放熱器は、絶縁媒体を冷却する。The stationary inductor unit has a stationary inductor and a heat sink. The stationary inductor has a transformer and an insulating medium. The heat sink is connected to the stationary inductor and the insulating medium flows through it. The heat sink cools the insulating medium.

都市部の人口増加による過密化などに起因して、変電所が屋内に設けられる場合がある。屋内変電所または地下変電所の狭い空間に静止誘導器ユニットが据え付けられると、絶縁媒体の冷却性能が低下する場合がある。絶縁媒体の冷却性能の低下を抑制することができる静止誘導器ユニットが求められる。 Due to overcrowding caused by population growth in urban areas, substations are sometimes installed indoors. When a static inductor unit is installed in the narrow space of an indoor or underground substation, the cooling performance of the insulating medium may decrease. There is a demand for a static inductor unit that can suppress the decrease in the cooling performance of the insulating medium.

特開２０１７－１８０１８２号公報JP 2017-180182 A 特開平１－３１２８１０号公報Japanese Patent Application Publication No. 1-312810

本発明が解決しようとする課題は、絶縁媒体の冷却性能の低下を抑制することができる静止誘導器ユニットを提供することである。 The problem that this invention aims to solve is to provide a static inductor unit that can suppress the deterioration of the cooling performance of the insulating medium.

実施形態の静止誘導器ユニットは、静止誘導器と、放熱器と、放熱ダクトと、規制部材と、を持つ。静止誘導器は、絶縁媒体を含む。放熱器は、静止誘導器に接続され、絶縁媒体が流通する。放熱ダクトは、放熱器を収容し、上部開口および下部開口を有する。規制部材は、静止誘導器および放熱ダクトの収容室における放熱ダクトの外側を経由した上部開口と下部開口との間の空気の流通を規制する。The stationary inductor unit of the embodiment has a stationary inductor, a heat sink, a heat dissipation duct, and a restricting member. The stationary inductor includes an insulating medium. The heat sink is connected to the stationary inductor, and the insulating medium flows through it. The heat dissipation duct houses the heat sink and has an upper opening and a lower opening. The restricting member restricts the flow of air between the upper opening and the lower opening via the outside of the heat dissipation duct in the housing chamber for the stationary inductor and the heat dissipation duct.

第１の実施形態の静止誘導器ユニットの概略構成図。FIG. 2 is a schematic configuration diagram of a stationary induction unit according to the first embodiment. 第１の実施形態の変形例の静止誘導器ユニットの概略構成図。FIG. 4 is a schematic configuration diagram of a stationary inductor unit according to a modified example of the first embodiment. 第２の実施形態の静止誘導器ユニットの概略構成図。FIG. 11 is a schematic configuration diagram of a stationary induction unit according to a second embodiment. 第３の実施形態の静止誘導器ユニットの概略構成図。FIG. 13 is a schematic configuration diagram of a stationary induction unit according to a third embodiment. 第４の実施形態の静止誘導器ユニットの概略構成図。FIG. 13 is a schematic configuration diagram of a stationary induction unit according to a fourth embodiment. 第４の実施形態の変形例の静止誘導器ユニットの概略構成図。FIG. 13 is a schematic configuration diagram of a stationary inductor unit according to a modified example of the fourth embodiment.

以下、実施形態の静止誘導器ユニットを、図面を参照して説明する。
（第１の実施形態）
図１は、第１の実施形態の静止誘導器ユニットの概略構成図である。静止誘導器ユニット１０は、静止誘導器１１と、放熱器１５と、放熱ダクト１７と、を有する。 Hereinafter, a stationary induction unit according to an embodiment will be described with reference to the drawings.
(First embodiment)
1 is a schematic diagram of a stationary induction unit according to a first embodiment. The stationary induction unit 10 includes a stationary induction unit 11, a heat sink 15, and a heat dissipation duct 17.

静止誘導器１１は、タンクの内部に変圧器および絶縁媒体（共に不図示）を収容したものである。変圧器は、鉄芯（コア）および巻線（コイル）を有する。絶縁媒体は、絶縁油または絶縁ガス等である。例えば、絶縁ガスはＳＦ６等であり、絶縁油は鉱油またはエステル油等である。絶縁媒体は、変圧器の周囲に充填される。巻線への通電に伴って変圧器が発熱する。変圧器の熱は、周囲の絶縁媒体に伝達される。次述する放熱器１５は、絶縁媒体を冷却する。 The stationary inductor 11 contains a transformer and an insulating medium (both not shown) inside a tank. The transformer has an iron core and a winding (coil). The insulating medium is insulating oil or insulating gas, etc. For example, the insulating gas is SF6, etc., and the insulating oil is mineral oil or ester oil, etc. The insulating medium is filled around the transformer. The transformer generates heat as current flows through the winding. The heat from the transformer is transferred to the surrounding insulating medium. A heat sink 15, which will be described next, cools the insulating medium.

放熱器（ラジエータ）１５は、絶縁媒体が流通する流路を有する。例えば、流路は平板状に形成される。複数の平板状流路が、水平方向に並んで配置される。放熱器１５は、配管１３ａ，１３ｂにより静止誘導器１１に接続される。配管１３ａ，１３ｂは、上部配管１３ａおよび下部配管１３ｂである。静止誘導器１１で高温になった絶縁媒体は、上部配管１３ａを通って放熱器１５に流入する。放熱器１５を流通する絶縁媒体は、周囲の空気と熱交換して放熱し、冷却される。冷却された絶縁媒体は、下部配管１３ｂを通って静止誘導器１１に戻る。The radiator 15 has a flow path through which the insulating medium flows. For example, the flow path is formed in a flat plate shape. A plurality of flat flow paths are arranged side by side in the horizontal direction. The radiator 15 is connected to the stationary inductor 11 by pipes 13a and 13b. The pipes 13a and 13b are the upper pipe 13a and the lower pipe 13b. The insulating medium that has become hot in the stationary inductor 11 flows into the radiator 15 through the upper pipe 13a. The insulating medium flowing through the radiator 15 exchanges heat with the surrounding air to dissipate heat and is cooled. The cooled insulating medium returns to the stationary inductor 11 through the lower pipe 13b.

放熱ダクト（換気ダクト）１７は、放熱器１５を水平方向に取り囲む。放熱ダクト１７は、上部開口１８ａおよび下部開口１８ｂを有する。The heat dissipation duct (ventilation duct) 17 surrounds the heat radiator 15 in the horizontal direction. The heat dissipation duct 17 has an upper opening 18a and a lower opening 18b.

静止誘導器ユニット１０は、収容室１の内部に配置される。収容室１は、上部換気口６ａおよび下部換気口６ｂを有する。上部換気口６ａは収容室１の上部に配置され、下部換気口６ｂは収容室１の下部に配置される。換気口６ａ，６ｂは、収容室１の内部と外部とを連通する。The stationary inductor unit 10 is disposed inside the storage chamber 1. The storage chamber 1 has an upper ventilation opening 6a and a lower ventilation opening 6b. The upper ventilation opening 6a is disposed at the top of the storage chamber 1, and the lower ventilation opening 6b is disposed at the bottom of the storage chamber 1. The ventilation openings 6a and 6b communicate the inside and outside of the storage chamber 1.

収容室１の外部の冷気が、下部換気口６ｂから収容室１の内部に流入する。冷気は、下部開口１８ｂから放熱ダクト１７に流入する。放熱ダクト１７を流通する冷気は、放熱器１５を流通する絶縁媒体と熱交換して吸熱し、暖気に変化する。暖気は、放熱ダクト１７の上部開口１８ａから収容室１の内部に流出する。暖気は、上部換気口６ａから収容室１の外部に流出する。換気口６ａ，６ｂに送風機が装着されてもよい。 Cold air from outside the storage chamber 1 flows into the interior of the storage chamber 1 through the lower ventilation opening 6b. The cold air flows into the heat dissipation duct 17 through the lower opening 18b. The cold air flowing through the heat dissipation duct 17 exchanges heat with the insulating medium flowing through the radiator 15, absorbing heat and changing into warm air. The warm air flows out from the upper opening 18a of the heat dissipation duct 17 into the interior of the storage chamber 1. The warm air flows out from the upper ventilation opening 6a to the exterior of the storage chamber 1. A blower may be attached to the ventilation openings 6a and 6b.

省スペース化を図るため、狭い収容室１の内部に、静止誘導器ユニット１０が収容される場合がある。この場合、放熱ダクト１７の上部開口１８ａから流出した暖気の一部が、上部換気口６ａから収容室１の外部に流出せずに、収容室１の内部に滞留する。暖気は、収容室１の側壁に沿って放熱ダクト１７の外側を下降する。暖気は、下部開口１８ｂから放熱ダクト１７に流入する。すなわち、収容室１の内部において暖気が循環する。これにより、放熱器１５の熱交換効率が低下して、静止誘導器ユニット１０の絶縁媒体の冷却性能が低下する。In order to save space, the stationary induction unit 10 may be housed inside a narrow accommodation chamber 1. In this case, some of the warm air flowing out from the upper opening 18a of the heat dissipation duct 17 does not flow out of the accommodation chamber 1 through the upper ventilation opening 6a, but remains inside the accommodation chamber 1. The warm air descends outside the heat dissipation duct 17 along the side wall of the accommodation chamber 1. The warm air flows into the heat dissipation duct 17 from the lower opening 18b. In other words, the warm air circulates inside the accommodation chamber 1. This reduces the heat exchange efficiency of the radiator 15, and the cooling performance of the insulating medium of the stationary induction unit 10 decreases.

静止誘導器ユニット１０は、規制部材２０を有する。規制部材２０は、収容室１の内部における暖気の循環を規制する。規制部材２０は、収容室１の内部における放熱ダクト１７の外側を経由した上部開口１８ａと下部開口１８ｂとの間の空気の流通を規制する。The stationary induction unit 10 has a restricting member 20. The restricting member 20 restricts the circulation of warm air inside the storage chamber 1. The restricting member 20 restricts the flow of air between the upper opening 18a and the lower opening 18b inside the storage chamber 1 via the outside of the heat dissipation duct 17.

静止誘導器ユニット１０は、規制部材２０として上部接続ダクト２１を有する。上部接続ダクト２１は、放熱ダクト１７の上部開口１８ａと収容室１の上部換気口６ａとを接続する。The stationary induction unit 10 has an upper connection duct 21 as a restricting member 20. The upper connection duct 21 connects the upper opening 18a of the heat dissipation duct 17 to the upper ventilation opening 6a of the storage chamber 1.

上部開口１８ａから流出した暖気は、上部接続ダクト２１を通って、上部換気口６ａから収容室１の外部に流出する。上部接続ダクト２１は、収容室１の内部における放熱ダクト１７の外側を経由した上部開口１８ａと下部開口１８ｂとの間の空気の流通を規制する。暖気は、下部開口１８ｂから放熱ダクト１７に流入しない。その代わりに、下部換気口６ｂから収容室１に流入した冷気が、下部開口１８ｂから放熱ダクト１７に流入する。これにより、放熱器１５の熱交換効率が向上して、静止誘導器ユニット１０の絶縁媒体の冷却性能の低下が抑制される。その結果、狭い収容室１の内部に、静止誘導器ユニット１０を収容することができる。収容室１の大きさを、静止誘導器ユニット１０の物理的な大きさの程度まで縮小することができる。The warm air flowing out from the upper opening 18a passes through the upper connection duct 21 and flows out from the upper ventilation opening 6a to the outside of the storage chamber 1. The upper connection duct 21 regulates the flow of air between the upper opening 18a and the lower opening 18b via the outside of the heat dissipation duct 17 inside the storage chamber 1. The warm air does not flow into the heat dissipation duct 17 from the lower opening 18b. Instead, the cold air that flows into the storage chamber 1 from the lower ventilation opening 6b flows into the heat dissipation duct 17 from the lower opening 18b. This improves the heat exchange efficiency of the radiator 15, and suppresses the deterioration of the cooling performance of the insulating medium of the stationary induction unit 10. As a result, the stationary induction unit 10 can be accommodated inside the narrow storage chamber 1. The size of the storage chamber 1 can be reduced to the extent of the physical size of the stationary induction unit 10.

静止誘導器ユニット１０は、規制部材２０として、上部接続ダクト２１に代えて、下部接続ダクト（不図示）を有してもよい。下部接続ダクトは、収容室１の下部換気口６ｂと放熱ダクト１７の下部開口１８ｂとを接続する。この場合、下部換気口６ｂから流入した冷気だけが、放熱ダクト１７の下部開口１８ｂに流入する。下部接続ダクトは、収容室１の内部における放熱ダクト１７の外側を経由した上部開口１８ａと下部開口１８ｂとの間の空気の流通を規制する。放熱ダクト１７の上部開口１８ａから流出した暖気は、下部開口１８ｂに流入しない。これにより、放熱器１５の熱交換効率が向上して、静止誘導器ユニット１０の絶縁媒体の冷却性能の低下が抑制される。
静止誘導器ユニット１０は、規制部材２０として、上部接続ダクト２１および下部接続ダクトの両方を有してもよい。 The stationary induction unit 10 may have a lower connection duct (not shown) as the restricting member 20 instead of the upper connection duct 21. The lower connection duct connects the lower ventilation port 6b of the accommodation chamber 1 and the lower opening 18b of the heat dissipation duct 17. In this case, only the cold air flowing in from the lower ventilation port 6b flows into the lower opening 18b of the heat dissipation duct 17. The lower connection duct restricts the flow of air between the upper opening 18a and the lower opening 18b via the outside of the heat dissipation duct 17 inside the accommodation chamber 1. The warm air flowing out from the upper opening 18a of the heat dissipation duct 17 does not flow into the lower opening 18b. This improves the heat exchange efficiency of the radiator 15, and suppresses the deterioration of the cooling performance of the insulating medium of the stationary induction unit 10.
The stationary inductor unit 10 may have both the upper connecting duct 21 and the lower connecting duct as the restricting member 20 .

図２は、第１の実施形態の変形例の静止誘導器ユニットの概略構成図である。変形例の静止誘導器ユニット１０は、送風機（ファン、冷却扇）３０を有する点で、第１の実施形態とは異なる。送風機３０は、放熱ダクト１７の下部開口１８ｂに装着される。送風機３０は、下部開口１８ｂから放熱ダクト１７の内側に送風する。下部換気口６ｂから収容室１に流入した冷気の、放熱ダクト１７への流入が促進される。これにより、静止誘導器ユニット１０の絶縁媒体の冷却性能が向上する。 Figure 2 is a schematic diagram of a static induction unit according to a modified example of the first embodiment. The modified static induction unit 10 differs from the first embodiment in that it has a blower (fan, cooling fan) 30. The blower 30 is attached to the lower opening 18b of the heat dissipation duct 17. The blower 30 blows air from the lower opening 18b to the inside of the heat dissipation duct 17. The flow of cold air that has flowed into the storage chamber 1 from the lower ventilation opening 6b into the heat dissipation duct 17 is promoted. This improves the cooling performance of the insulating medium of the static induction unit 10.

（第２の実施形態）
図３は、第２の実施形態の静止誘導器ユニットの概略構成図である。第２の実施形態の静止誘導器ユニット１０は、規制部材２０として閉止板２３を有する点で、第１の実施形態とは異なる。第１の実施形態と同様である部分における第２の実施形態の説明は省略される場合がある。 Second Embodiment
3 is a schematic diagram of a stationary induction unit according to the second embodiment. The stationary induction unit 10 according to the second embodiment differs from the first embodiment in that it has a closure plate 23 as a restricting member 20. Descriptions of the second embodiment that are similar to those of the first embodiment may be omitted.

閉止板２３は、収容室１の内部を上部室２ａと下部室２ｂとに区画する。上部室２ａは、放熱ダクト１７の上部開口１８ａおよび収容室１の上部換気口６ａを含む。下部室２ｂは、放熱ダクト１７の下部開口１８ｂおよび収容室１の下部換気口６ｂを含む。下部室２ｂは、さらに静止誘導器１１を含む。閉止板２３は、放熱ダクト１７の外側であって、放熱ダクト１７の上下方向の中間部に配置される。The closure plate 23 divides the interior of the storage chamber 1 into an upper chamber 2a and a lower chamber 2b. The upper chamber 2a includes an upper opening 18a of the heat dissipation duct 17 and an upper ventilation opening 6a of the storage chamber 1. The lower chamber 2b includes a lower opening 18b of the heat dissipation duct 17 and a lower ventilation opening 6b of the storage chamber 1. The lower chamber 2b further includes a stationary inductor 11. The closure plate 23 is located outside the heat dissipation duct 17 and in the middle of the heat dissipation duct 17 in the vertical direction.

放熱ダクト１７の上部開口１８ａから上部室２ａに暖気が流出する。閉止板２３は、収容室１の内部における放熱ダクト１７の外側を経由した上部開口１８ａと下部開口１８ｂとの間の空気の流通を規制する。暖気の下部室２ｂへの下降は、閉止板２３により規制される。暖気は、下部室２ｂに含まれる下部開口１８ｂから放熱ダクト１７に流入しない。下部換気口６ｂから下部室２ｂに流入した冷気が、下部開口１８ｂから放熱ダクト１７に流入する。これにより、放熱器１５の熱交換効率が向上して、静止誘導器ユニット１０の絶縁媒体の冷却性能の低下が抑制される。 Warm air flows out from the upper opening 18a of the heat dissipation duct 17 into the upper chamber 2a. The closing plate 23 restricts the flow of air between the upper opening 18a and the lower opening 18b via the outside of the heat dissipation duct 17 inside the accommodation chamber 1. The descent of the warm air into the lower chamber 2b is restricted by the closing plate 23. The warm air does not flow into the heat dissipation duct 17 from the lower opening 18b included in the lower chamber 2b. The cold air that flows into the lower chamber 2b from the lower ventilation opening 6b flows into the heat dissipation duct 17 from the lower opening 18b. This improves the heat exchange efficiency of the radiator 15 and suppresses the deterioration of the cooling performance of the insulating medium of the stationary induction unit 10.

静止誘導器ユニット１０の放熱ダクト１７の下部開口１８ｂに、送風機が装着されてもよい。これにより、静止誘導器ユニット１０の絶縁媒体の冷却性能が向上する。A blower may be attached to the lower opening 18b of the heat dissipation duct 17 of the stationary induction unit 10. This improves the cooling performance of the insulating medium of the stationary induction unit 10.

（第３の実施形態）
図４は、第３の実施形態の静止誘導器ユニットの概略構成図である。第３の実施形態の静止誘導器ユニット１０は、仕切壁２５を有する点で、第１の実施形態とは異なる。第１の実施形態と同様である部分における第３の実施形態の説明は省略される場合がある。 Third Embodiment
4 is a schematic diagram of a stationary induction unit according to the third embodiment. The stationary induction unit 10 according to the third embodiment differs from the first embodiment in that it has a partition wall 25. Descriptions of the third embodiment that are similar to the first embodiment may be omitted.

静止誘導器１１は、運転に伴って発熱する。静止誘導器１１の熱は、周囲の空気に伝達される。前述されたように、静止誘導器ユニット１０が狭い収容室１の内部に収容される場合がある。この場合、静止誘導器１１の周囲の暖気が、下部開口１８ｂから放熱ダクト１７に流入する可能性がある。これにより、放熱器１５の熱交換効率が低下して、静止誘導器ユニット１０の絶縁媒体の冷却性能が低下する。The stationary induction device 11 generates heat during operation. The heat of the stationary induction device 11 is transferred to the surrounding air. As described above, the stationary induction device unit 10 may be housed inside a narrow housing chamber 1. In this case, the warm air around the stationary induction device 11 may flow into the heat dissipation duct 17 from the lower opening 18b. This reduces the heat exchange efficiency of the radiator 15, and the cooling performance of the insulating medium of the stationary induction device unit 10 decreases.

静止誘導器ユニット１０は、仕切壁２５を有する。仕切壁２５は、収容室１の内部を第１室３ｃと第２室３ｄとに区画する。第１室３ｃは、放熱器１５および放熱ダクト１７を含む。放熱ダクト１７の下部開口１８ｂには送風機３０が装着される。第２室３ｄは、静止誘導器１１を含む。The stationary induction unit 10 has a partition wall 25. The partition wall 25 divides the interior of the accommodation chamber 1 into a first chamber 3c and a second chamber 3d. The first chamber 3c includes a radiator 15 and a heat dissipation duct 17. A blower 30 is attached to the lower opening 18b of the heat dissipation duct 17. The second chamber 3d includes a stationary induction unit 11.

仕切壁２５は、第１室３ｃと第２室３ｄとの間の空気の流通を規制する。静止誘導器１１を含む第２室３ｄから放熱ダクト１７を含む第１室３ｃへの暖気の移動は、仕切壁２５により規制される。静止誘導器１１の周囲の暖気は、放熱ダクト１７の下部開口１８ｂに流入しない。これにより、静止誘導器ユニット１０の絶縁媒体の冷却性能の低下が抑制される。The partition wall 25 regulates the flow of air between the first chamber 3c and the second chamber 3d. The movement of warm air from the second chamber 3d containing the stationary inductor 11 to the first chamber 3c containing the heat dissipation duct 17 is regulated by the partition wall 25. The warm air around the stationary inductor 11 does not flow into the lower opening 18b of the heat dissipation duct 17. This prevents the cooling performance of the insulating medium of the stationary inductor unit 10 from deteriorating.

第１室３ｃは、前述された上部換気口６ａおよび下部換気口６ｂ（以下、第１上部換気口６ａおよび第１下部換気口６ｂと言う場合がある。）を含む。第２室３ｄは、第２上部換気口７ａおよび第２下部換気口７ｂを含む。第２上部換気口７ａは第２室３ｄの上部に配置され、第２下部換気口７ｂは第２室３ｄの下部に配置される。換気口７ａ，７ｂは、第２室３ｄの内部と収容室１の外部とを連通する。The first chamber 3c includes the upper ventilation opening 6a and the lower ventilation opening 6b described above (hereinafter, sometimes referred to as the first upper ventilation opening 6a and the first lower ventilation opening 6b). The second chamber 3d includes the second upper ventilation opening 7a and the second lower ventilation opening 7b. The second upper ventilation opening 7a is disposed at the top of the second chamber 3d, and the second lower ventilation opening 7b is disposed at the bottom of the second chamber 3d. The ventilation openings 7a and 7b communicate the inside of the second chamber 3d with the outside of the storage chamber 1.

静止誘導器１１の周囲の暖気は、第２上部換気口７ａから収容室１の外部に流出する。収容室１の外部の冷気が、第２下部換気口７ｂから第２室３ｄに流入する。これにより、第２室３ｄの静止誘導器１１の温度上昇が抑制される。換気口７ａ，７ｂに送風機が装着されてもよい。 Warm air around the stationary inductor 11 flows out of the storage chamber 1 through the second upper ventilation opening 7a. Cold air outside the storage chamber 1 flows into the second chamber 3d through the second lower ventilation opening 7b. This prevents the temperature of the stationary inductor 11 in the second chamber 3d from rising. A blower may be attached to the ventilation openings 7a and 7b.

（第４の実施形態）
図５は、第４の実施形態の静止誘導器ユニットの概略構成図である。第４の実施形態の静止誘導器ユニット１０は、仕切壁２５に加えて、規制部材２０として閉止板２３を有する点で、第２および第３の実施形態とは異なる。第２および第３の実施形態と同様である部分における第４の実施形態の説明は省略される場合がある。 (Fourth embodiment)
5 is a schematic diagram of a stationary induction unit according to the fourth embodiment. The stationary induction unit 10 according to the fourth embodiment differs from the second and third embodiments in that it has a closure plate 23 as a restricting member 20 in addition to a partition wall 25. Descriptions of the fourth embodiment that are similar to the second and third embodiments may be omitted.

閉止板２３は、第１室３ｃの内部を上部室２ａと下部室２ｂとに区画する。上部室２ａは、放熱ダクト１７の上部開口１８ａおよび第１室３ｃの第１上部換気口６ａを含む。下部室２ｂは、放熱ダクト１７の下部開口１８ｂおよび第１室３ｃの第１下部換気口６ｂを含む。The closure plate 23 divides the interior of the first chamber 3c into an upper chamber 2a and a lower chamber 2b. The upper chamber 2a includes the upper opening 18a of the heat dissipation duct 17 and the first upper ventilation opening 6a of the first chamber 3c. The lower chamber 2b includes the lower opening 18b of the heat dissipation duct 17 and the first lower ventilation opening 6b of the first chamber 3c.

閉止板２３は、第１室３ｃの内部における放熱ダクト１７の外側を経由した上部開口１８ａと下部開口１８ｂとの間の空気の流通を規制する。上部開口１８ａから上部室２ａに流出した暖気は、下部室２ｂの下部開口１８ｂから放熱ダクト１７に流入しない。仕切壁２５は、第１室３ｃと第２室３ｄとの間の空気の流通を規制する。第２室３ｄの静止誘導器１１の周囲の暖気は、第１室３ｃの放熱ダクト１７に流入しない。これにより、静止誘導器ユニット１０の絶縁媒体の冷却性能の低下が抑制される。The closing plate 23 restricts the flow of air between the upper opening 18a and the lower opening 18b via the outside of the heat dissipation duct 17 inside the first chamber 3c. The warm air flowing out from the upper opening 18a to the upper chamber 2a does not flow into the heat dissipation duct 17 from the lower opening 18b of the lower chamber 2b. The partition wall 25 restricts the flow of air between the first chamber 3c and the second chamber 3d. The warm air around the stationary inductor 11 in the second chamber 3d does not flow into the heat dissipation duct 17 of the first chamber 3c. This suppresses the deterioration of the cooling performance of the insulating medium of the stationary inductor unit 10.

第４の実施形態の静止誘導器ユニット１０は、仕切壁２５に加えて、規制部材２０として閉止板２３を有する。これに対して、静止誘導器ユニット１０は、仕切壁２５に加えて、規制部材２０として上部接続ダクト２１および下部接続ダクトの一方または両方を有してもよい。The stationary induction unit 10 of the fourth embodiment has a closure plate 23 as a restricting member 20 in addition to the partition wall 25. In contrast, the stationary induction unit 10 may have one or both of an upper connection duct 21 and a lower connection duct as a restricting member 20 in addition to the partition wall 25.

図６は、第４の実施形態の変形例の静止誘導器ユニットの概略構成図である。変形例の静止誘導器ユニット１０は、送風機３０を有する点で、第４の実施形態とは異なる。送風機３０は、放熱ダクト１７の下部開口１８ｂに装着される。送風機３０は、下部開口１８ｂから放熱ダクト１７の内側に送風する。第１下部換気口６ｂから下部室２ｂに流入した冷気の、放熱ダクト１７への流入が促進される。これにより、静止誘導器ユニット１０の絶縁媒体の冷却性能が向上する。 Figure 6 is a schematic diagram of a static induction unit of a modified example of the fourth embodiment. The modified static induction unit 10 differs from the fourth embodiment in that it has a blower 30. The blower 30 is attached to the lower opening 18b of the heat dissipation duct 17. The blower 30 blows air from the lower opening 18b to the inside of the heat dissipation duct 17. The flow of cold air that has flowed into the lower chamber 2b from the first lower ventilation opening 6b into the heat dissipation duct 17 is promoted. This improves the cooling performance of the insulating medium of the static induction unit 10.

以上説明した少なくともひとつの実施形態によれば、収容室１の内部における放熱ダクト１７の外側を経由した上部開口１８ａと下部開口１８ｂとの間の空気の流通を規制する規制部材２０を持つ。これにより、絶縁媒体の冷却性能の低下を抑制することができる。According to at least one of the embodiments described above, a restricting member 20 is provided that restricts the flow of air between the upper opening 18a and the lower opening 18b via the outside of the heat dissipation duct 17 inside the storage chamber 1. This makes it possible to suppress a decrease in the cooling performance of the insulating medium.

本発明のいくつかの実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれると同様に、特許請求の範囲に記載された発明とその均等の範囲に含まれるものである。 Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the gist of the invention. These embodiments and their modifications are within the scope of the invention and its equivalents as set forth in the claims, as well as the scope and gist of the invention.

１…収容室、２ａ…上部室、２ｂ…下部室、６ａ…上部換気口、６ｂ…下部換気口、１０…静止誘導器ユニット、１１…静止誘導器、１５…放熱器、１７…放熱ダクト、１８ａ…上部開口、１８ｂ…下部開口、２０…規制部材、２１…上部接続ダクト（接続ダクト）、２３…閉止板、２５…仕切壁、３０…送風機。 1...storage chamber, 2a...upper chamber, 2b...lower chamber, 6a...upper ventilation port, 6b...lower ventilation port, 10...stationary inductor unit, 11...stationary inductor, 15...heat sink, 17...heat dissipation duct, 18a...upper opening, 18b...lower opening, 20...regulating member, 21...upper connecting duct (connecting duct), 23...closure plate, 25...partition wall, 30...blower.

Claims (5)

絶縁媒体を含む静止誘導器と、
前記静止誘導器に接続され、前記絶縁媒体が流通する放熱器と、
前記放熱器を収容し、上部開口および下部開口を有する放熱ダクトと、
前記静止誘導器および前記放熱ダクトの収容室における前記放熱ダクトの外側を経由した前記上部開口と前記下部開口との間の空気の流通を規制する規制部材と、を有する、
静止誘導器ユニット。 a stationary inductor including an insulating medium;
a heat sink connected to the stationary inductor and through which the insulating medium flows;
a heat dissipation duct that houses the heat sink and has an upper opening and a lower opening;
A restricting member restricts the flow of air between the upper opening and the lower opening through the outside of the heat dissipation duct in the accommodation chamber of the stationary inductor and the heat dissipation duct.
Static induction unit. 前記規制部材は、前記上部開口と前記収容室の上部換気口とを接続する接続ダクトである、
請求項１に記載の静止誘導器ユニット。 The restricting member is a connecting duct that connects the upper opening and an upper ventilation port of the storage chamber.
The stationary inductor unit of claim 1 . 前記規制部材は、前記収容室の内部を、前記上部開口および前記収容室の上部換気口を含む上部室と前記下部開口および前記収容室の下部換気口を含む下部室とに区画する閉止板である、
請求項１に記載の静止誘導器ユニット。 The restricting member is a closing plate that divides the interior of the storage chamber into an upper chamber including the upper opening and the upper ventilation port of the storage chamber, and a lower chamber including the lower opening and the lower ventilation port of the storage chamber.
The stationary inductor unit of claim 1 . 前記収容室の内部を、前記放熱ダクトを含む第１室と前記静止誘導器を含む第２室とに区画する仕切壁を有する、
請求項１から３のいずれか１項に記載の静止誘導器ユニット。 A partition wall is provided to divide the inside of the accommodation chamber into a first chamber including the heat dissipation duct and a second chamber including the stationary inductor.
A stationary inductor unit according to any one of claims 1 to 3. 前記下部開口から前記放熱ダクトの内側に送風する送風機を有する、
請求項１から４のいずれか１項に記載の静止誘導器ユニット。 a blower that blows air from the lower opening to the inside of the heat dissipation duct;
A stationary inductor unit according to any one of claims 1 to 4.
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