JP2005318770A - Power converter - Google Patents

Power converter Download PDF

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JP2005318770A
JP2005318770A JP2004136100A JP2004136100A JP2005318770A JP 2005318770 A JP2005318770 A JP 2005318770A JP 2004136100 A JP2004136100 A JP 2004136100A JP 2004136100 A JP2004136100 A JP 2004136100A JP 2005318770 A JP2005318770 A JP 2005318770A
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radiation fan
opening
main body
cooling fin
fan
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JP2004136100A
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JP4512410B2 (en
Inventor
Masayuki Hirota
雅之 広田
Naoki Takada
直樹 高田
Satoshi Ibori
敏 井堀
Masahiro Hiraga
正宏 平賀
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Hitachi Industrial Equipment Systems Co Ltd
Hitachi KE Systems Ltd
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Hitachi Industrial Equipment Systems Co Ltd
Hitachi KE Systems Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a power converter which is simple in exchange of a radiation fan, and facilitated in maintenance. <P>SOLUTION: An inverter device is constituted, such that a window opening 6 is formed at a body cover 1; a rolling shutter shaped covering member 7 is detachably fitted into the opening; a part of the external periphery 4 of a cooling fin is made to be a separate radiation fan attachment plate 10; the radiation fan attachment plate is attachable and detachable from the outside; and the radiation fan 11 is attached to the radiation fan attaching plate. Since the rolling shutter shaped covering member 7 and the radiation fan attachment plate 10 can be attached and detached from the outside, the radiation fan 11 can easily be exchanged without removing the case, and maintenance work is facilitated. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、放熱ファンを備えた電力変換装置に係り、特に汎用のインバータ装置に好適な電力変換装置に関する。   The present invention relates to a power conversion device including a heat dissipation fan, and more particularly to a power conversion device suitable for a general-purpose inverter device.

近年、電力変換装置に使用される半導体素子の性能向上は目覚ましく、このため電力変換装置も汎用化が進んでいるが、ここでインバータ装置などの電力変換装置では、半導体素子から発生した熱の放散を促進するため、放熱ファン(ファン)を設ける場合があるが、このとき、従来技術では、このファンを装置の本体に取付けている(例えば、特許文献１参照。)。   In recent years, the performance of semiconductor elements used in power conversion devices has been remarkably improved. For this reason, power conversion devices are also becoming increasingly versatile. Here, in power conversion devices such as inverter devices, heat generated from semiconductor elements is dissipated. However, in this case, in the conventional technique, this fan is attached to the main body of the apparatus (for example, see Patent Document 1).

そして、従来技術では、このようにして放熱ファンを取付けた後、所望の筐体に装置の本体を収容し、本体の保護が得られるようにすると共に、製品としての体裁が整えられるようにしている。
特開平０６−３０３７７８号公報 In the prior art, after mounting the heat dissipating fan in this way, the main body of the apparatus is accommodated in a desired housing so that the main body can be protected and the appearance of the product is arranged. Yes.
Japanese Patent Laid-Open No. 06-303778

上記従来技術は、放熱ファンが耐用期間をもつ部品である点について配慮がされておらず、メンテナンス(保守)に手間を要するという問題があった。   The above prior art has a problem in that it does not give consideration to the fact that the heat dissipating fan is a component having a useful life, and requires maintenance.

放熱ファンは可動部を有するので、使用期間が経過すると寿命に達し、交換が必要になるが、このとき、従来技術では、装置から筐体を取り外す必要があり、従って、作業が複雑になり、メンテナンスに手間を要してしまうのである。   Since the heat dissipating fan has a moving part, it reaches the end of its service life and needs to be replaced, but at this time, in the prior art, it is necessary to remove the housing from the device, and thus the work becomes complicated, It takes time and effort for maintenance.

また、インバータ装置は、例えば制御盤などの機器に組み込まれて使用されることがあるが、この場合、インバータ装置の筐体が機器に嵌合されているので、インバータ装置を制御盤から取り外さないと、筐体の取り外しができない。   The inverter device may be used by being incorporated in a device such as a control panel, for example. In this case, the inverter device housing is fitted to the device, so the inverter device is not removed from the control panel. And the case cannot be removed.

つまり、この場合、そのままでは筐体の取り外しが困難であり、従って、放熱ファンの交換に際しては、まず、インバータ装置を制御盤から取り外すさなければならず、その後で更に筐体を取り外さなければならない。   That is, in this case, it is difficult to remove the casing as it is. Therefore, when replacing the heat dissipation fan, the inverter device must first be removed from the control panel, and then the casing must be further removed. .

しかも、この場合、装置の主回路配線を外さないと、制御盤などから装置を取り外すことが出来ない場合が多く、更に煩雑な作業が必要で、この場合、放熱ファンの交換と言えども多くの作業が必要となる。   In addition, in this case, it is often impossible to remove the device from the control panel or the like unless the main circuit wiring of the device is removed, and more complicated work is required. Work is required.

本発明の目的は、放熱ファンの交換が簡単でメンテナンスが容易な電力変換装置を提供することにある。   An object of the present invention is to provide a power converter that allows easy replacement of a heat dissipation fan and easy maintenance.

上記目的は、冷却フィンの外周部で筐体の一部を形成させた電力変換装置において、前記外周部以外の筐体部分に窓用開口部を形成させ、当該窓用開口部に外部から着脱自在にした塞ぎ板を設けると共に、前記冷却フィンの外周部の一部を放熱ファン取付部とし、当該放熱ファン取付部を外部から着脱自在に構成することにより達成される。   In the power conversion device in which a part of the casing is formed at the outer peripheral portion of the cooling fin, the object is to form a window opening in the casing portion other than the outer peripheral portion, and attach / detach the window opening from the outside. This is achieved by providing a freely closing plate, and forming a part of the outer peripheral portion of the cooling fin as a heat radiating fan mounting portion, and detaching the heat radiating fan mounting portion from the outside.

このとき、前記窓用開口部の内側の近傍に電力変換回路の直流電源端子が設けられているようにしても、上記目的が達成される。   At this time, the above object can be achieved even if a DC power supply terminal of the power conversion circuit is provided in the vicinity of the inside of the window opening.

上記手段によれば、筐体の一部に取り外し可能な塞ぎ部材を備えた窓部があるので、放熱ファンの交換時に、筐体を取り外さなくてもファンのコネクタを装置の所定部に接続したり取り外したりすることができる。   According to the above means, since there is a window portion provided with a detachable closing member in a part of the housing, the fan connector is connected to the predetermined portion of the apparatus without replacing the housing when replacing the heat dissipation fan. Or can be removed.

また、筐体の一部に開放可能な窓部があるので、内部にある部品のテスター試験や回路の電圧、電流などの測定が容易になる。   In addition, since there is a window part that can be opened in a part of the housing, it is easy to perform a tester test of components inside and measurement of voltage, current, etc. of the circuit.

本発明によれば、装置から筐体を外すことなく放熱ファンが交換できるので、メンテナンスが簡単に行える。また、筐体を装置から外すことなく回路素子や部品の検査や取り外し、交換なども容易になり、他の装置と結線したりすることも可能になる。   According to the present invention, since the heat dissipating fan can be replaced without removing the casing from the apparatus, maintenance can be easily performed. In addition, inspection, removal, and replacement of circuit elements and components can be facilitated without removing the housing from the apparatus, and connection with other apparatuses is also possible.

以下、本発明による電力変換装置について、インバータ装置として具現した場合の実施形態により詳細に説明する。   Hereinafter, the power converter device by this invention is demonstrated in detail by embodiment at the time of implementing as an inverter apparatus.

まず、図１は、本発明の第１の実施形態で、図において、１は本体部カバー、２は正面カバー、３は端子台カバー、４は冷却フィンの外周部で、これらの全体によりインバータ装置の筐体が形成されるようになっている。このとき、冷却フィンに取付脚部５を設け、これによりインバータ装置が制御盤などに取付けて使用できるようになっている。   First, FIG. 1 shows a first embodiment of the present invention. In the figure, 1 is a main body cover, 2 is a front cover, 3 is a terminal block cover, 4 is an outer periphery of a cooling fin, and these are the inverters as a whole. A housing of the apparatus is formed. At this time, the mounting legs 5 are provided on the cooling fins, so that the inverter device can be mounted and used on a control panel or the like.

ここで、図１には表われていないが、この実施形態の場合、インバータ本体は冷却フィンをベースとして組立てられ、このため冷却フィンの半導体素子取付面に主回路用パワー半導体素子を取付け、制御回路基板と電源回路基板を配置している。   Here, although not shown in FIG. 1, in the case of this embodiment, the inverter body is assembled on the basis of the cooling fin, and for this reason, the power semiconductor element for the main circuit is mounted on the semiconductor element mounting surface of the cooling fin and controlled. A circuit board and a power circuit board are arranged.

そこで、本体部カバー１を中央にし、その一方の側に正面カバー２及び端子台カバー３を配置し、他方の側に冷却フィンを配置することにより、主として制御回路基板と電源回路基板の周囲が本体部カバー１により囲まれるようにしている。   Therefore, the main body cover 1 is centered, the front cover 2 and the terminal block cover 3 are arranged on one side thereof, and the cooling fins are arranged on the other side, so that mainly the periphery of the control circuit board and the power circuit board is obtained. The main body cover 1 is surrounded.

このとき、本体部カバー１に窓用の開口６を設け、この開口６に、外側から鎧戸状の塞ぎ部材７が嵌め込めるようにしてある。このため、この塞ぎ部材７には係合用の耳部８が設けてあり、これに対応して、開口６の周辺の内側には係合爪(図示されていない)が設けてある。   At this time, a window opening 6 is provided in the main body cover 1, and an armor door-shaped closing member 7 is fitted into the opening 6 from the outside. For this reason, the closing member 7 is provided with an engaging ear 8, and correspondingly, an engaging claw (not shown) is provided inside the periphery of the opening 6.

これにより、塞ぎ部材７を外側から開口６に嵌め込んだとき、これらの耳部８が係合爪に弾性的に係合して保持されることになり、この結果、塞ぎ部材７が外側から本体部カバー１に着脱自在になるようにしてある。   As a result, when the closing member 7 is fitted into the opening 6 from the outside, these ear portions 8 are elastically engaged and held by the engaging claws. As a result, the closing member 7 is externally engaged. The main body cover 1 is detachable.

また、このとき、冷却フィンの外周部４の一部も別体にされ、これにより放熱ファン取付板１０が形成されるようにし、これに電動式の放熱ファン１１を取付ける。そして、この放熱ファン取付板１０も、外側から冷却フィンの外周部４に対して着脱自在にしてある。   At this time, a part of the outer peripheral portion 4 of the cooling fin is also made a separate body, so that the heat radiating fan mounting plate 10 is formed, and the electric heat radiating fan 11 is attached thereto. The radiating fan mounting plate 10 is also detachable from the outer peripheral portion 4 of the cooling fin from the outside.

更に本体部カバー１には通気孔１２が設けてあり、これにより塞ぎ部材７が開口６に嵌め込まれているときでも、必要な内部の換気が得られるようになっているが、このとき塞ぎ部材７が鎧戸状に作られているので、換気が更に促進されることになる。   Further, the body cover 1 is provided with a vent hole 12 so that necessary internal ventilation can be obtained even when the closing member 7 is fitted in the opening 6. Since 7 is made in the shape of an armored door, ventilation is further promoted.

次に、この実施形態によるインバータ装置の作用について説明すると、まず、ここで、通常の使用状態では、本体カバー１の開口６には塞ぎ部材７が嵌め込まれているので、落下物などがあっても、開口６からインバータ装置内(筐体内部)に異物が入ってしまうのを防ぐことができる。   Next, the operation of the inverter device according to this embodiment will be described. First, in the normal use state, since the closing member 7 is fitted in the opening 6 of the main body cover 1, there is a fallen object or the like. In addition, it is possible to prevent foreign matter from entering the inverter device (inside the casing) from the opening 6.

このとき、放熱ファン１１が動作され、冷却フィンからの放熱が促進されるので、例えばＩＧＢＴなどインバータ主回路のパワー半導体素子の温度が仕様温度を越えてしまうのを抑えることができるが、この結果、放熱ファン１１の使用時間が増してゆき、やがて交換時期に達する。   At this time, since the heat dissipation fan 11 is operated and heat dissipation from the cooling fin is promoted, for example, the temperature of the power semiconductor element of the inverter main circuit such as an IGBT can be suppressed from exceeding the specified temperature. The usage time of the heat dissipating fan 11 is increased, and eventually the replacement time is reached.

そこで、このときは、ファン交換のためのメンテナンス作業を実施することになるが、この実施形態の場合、放熱ファン取付板１０が外側から着脱自在になっているので、本体カバー１を取外す必要はなく、容易に放熱ファン１１を交換することができる。   Therefore, at this time, maintenance work for fan replacement is carried out. In this embodiment, the heat radiating fan mounting plate 10 is detachable from the outside, so that it is not necessary to remove the main body cover 1. The heat dissipation fan 11 can be easily replaced.

まず、放熱ファン取付板１０を取り外す。このとき、この実施形態では、係合用の耳部と係合爪による弾性的な係合になっているので、ねじ回しなどの工具を用いてネジを外すなどの作業は不要で、簡単なレバーなどを用いるだけで簡単に放熱ファン取付板１０を取り外すことができる。   First, the heat radiating fan mounting plate 10 is removed. At this time, in this embodiment, since it is elastically engaged by the engaging ear part and the engaging claw, it is not necessary to remove the screw using a tool such as a screwdriver, and a simple lever. The heat radiating fan mounting plate 10 can be easily removed simply by using, for example.

そこで、この後、放熱ファン取付板１０から古くなった放熱ファン１１を取り外し、新しい放熱ファン１１に交換し、放熱ファン取付板１０を取付けてやれば、ファン交換作業を完了させることができる。   Then, if the old heat dissipation fan 11 is removed from the heat dissipation fan mounting plate 10 and replaced with a new heat dissipation fan 11 and the heat dissipation fan mounting plate 10 is attached, the fan replacement operation can be completed.

ところで、このとき放熱ファン１１のリード線の取外しと再接続が必要であるが、この実施形態では、更に本体部カバー１に窓用の開口６があり、これに外部から着脱自在になっている塞ぎ部材７が嵌め込まれている。   By the way, it is necessary to remove and reconnect the lead wire of the heat dissipation fan 11 at this time, but in this embodiment, the main body cover 1 further has a window opening 6 which is detachable from the outside. A closing member 7 is fitted.

そこで、この塞ぎ部材７を取外してやれば、そこに開口６が現われるので、ここから内部にアクセス(接近)でき、放熱ファン１１のリード線の取外しと再接続を行うことができる。   Therefore, if the closing member 7 is removed, the opening 6 appears there, so that the inside can be accessed (approached), and the lead wire of the heat radiating fan 11 can be removed and reconnected.

ここで、このリード線の接続には、通常、プラグとソケットによる接続部が用いられているので、開口６からアクセスするだけで簡単にリード線の取外しと接続を行うことができる。   Here, since the connection part by a plug and a socket is normally used for the connection of this lead wire, a lead wire can be removed and connected simply by accessing from the opening 6.

従って、この実施形態によれば、本体部カバー１は勿論、その他、正面カバー２及び端子台カバー３、更には冷却フィンの外周部４も含めて、筐体となっている部分の何れについても取り外す必要はなく、そのままで放熱ファン１１を交換することができ、メンテナンス作業を簡単に完了させることができる。   Therefore, according to this embodiment, not only the main body cover 1 but also the front cover 2, the terminal block cover 3, and the outer peripheral part 4 of the cooling fin, both of the parts that are the housings. There is no need to remove it, and the heat radiating fan 11 can be replaced as it is, and the maintenance work can be completed easily.

また、この実施形態によれば、本体部カバー１から塞ぎ部材７が簡単に取り外ずせ、開口６から内部にアクセスできるので、この開口６の近傍にある部品についての試験や回路電圧、電流などを簡単に測定することができる。   In addition, according to this embodiment, the closing member 7 can be easily removed from the main body cover 1 and the inside can be accessed from the opening 6. Etc. can be measured easily.

更に、周囲温度が高い場所で使用する際、塞ぎ部材７を取り外してやれば、通風が活発化されるので、内部の温度上昇を抑えることができる。   Furthermore, when using in the place where ambient temperature is high, if the closing member 7 is removed, ventilation will be activated, so that an internal temperature rise can be suppressed.

次に図２は、本発明の第２の実施形態で、この実施形態は、図１の実施形態において、更に本体部カバー１の側面にも窓用の開口６０を設け、これに、同じく係合用の耳部８０を備えた鎧戸状の塞ぎ部材７０が着脱自在に嵌め込めるようにしたものであり、従って、その他の構成は、図１の実施形態と同じである。   Next, FIG. 2 shows a second embodiment of the present invention. In this embodiment, a window opening 60 is further provided on the side surface of the main body cover 1 in the embodiment of FIG. The armor door-shaped closing member 70 provided with the joint ear 80 is detachably fitted, and the other configuration is the same as that of the embodiment of FIG.

また、このとき、本体部カバー１の、図の向う側の側面にも窓用の開口と係合用の耳部を備えた鎧戸状の塞ぎ部材が着脱自在に嵌め込めるようにしてもよい。   Further, at this time, an armor door-shaped closing member having a window opening and an engaging ear may be detachably fitted to the side surface of the main body cover 1 on the opposite side.

この図２の実施形態の場合、本体部カバー１の側面にも窓用の開口６０があるので、内部に対するアクセスに更に多くの自由度を与えることができ、従って、この実施形態によれば、放熱ファン１１の交換は勿論、その他のメンテナンス作業も更に容易に、しかも細部に渡って決め細かに実施することができる。   In the case of the embodiment of FIG. 2, since there is an opening 60 for the window on the side surface of the main body cover 1, more freedom can be given to access to the inside. Therefore, according to this embodiment, In addition to replacing the heat dissipating fan 11, other maintenance work can be performed more easily and in detail, with fine details.

また、この図２の実施形態の場合、複数ある窓用の開口を同じ形状にすることにより、塞ぎ部材７、７０などが共通化されるので、部品種類を削減することができる。   In the case of the embodiment shown in FIG. 2, since the closing members 7 and 70 are made common by making a plurality of window openings have the same shape, the types of components can be reduced.

さらに、開口が複数あるので、開放する開口の個数を多くすることにより、更に筐体内部の温度上昇を抑えることができる。   Furthermore, since there are a plurality of openings, it is possible to further suppress the temperature rise inside the housing by increasing the number of openings to be opened.

また、図３は、本発明の第３の実施形態で、この実施形態は、上記図２の実施形態において、窓用の開口６０の内側に、更にインバータ本体の回路の所定部分に接続されている端子１３、１４を設けたものであり、従って、その他の構成は、図２の実施形態と同じである。また、このとき、本体部カバー１の、図の向う側の側面にも窓用の開口が設けられているようにしても良い。   FIG. 3 shows a third embodiment of the present invention, which is connected to a predetermined portion of the circuit of the inverter main body inside the window opening 60 in the embodiment of FIG. Terminals 13 and 14 are provided, and the other configurations are the same as those of the embodiment of FIG. At this time, a window opening may be provided on the side surface of the main body cover 1 on the side facing the figure.

ここで、このようなインバータ装置では、、複数台のインバータ装置を併設し、直流電源を共通化で運転させる場合があるが、この場合、この図３の実施形態によれば、端子１３、１４をインバータ主回路の直流電源回路に接続し、各端子１３、１４にバスバーなどの配線材１５を接続し、これを隣接するインバータ装置の端子１３、１４(図示してない)に接続することにより、電源などの共通化を簡単に得ることができる。   Here, in such an inverter device, a plurality of inverter devices may be provided and the DC power supply may be operated in common. In this case, according to the embodiment of FIG. Is connected to a DC power supply circuit of the inverter main circuit, a wiring material 15 such as a bus bar is connected to each of the terminals 13 and 14, and this is connected to terminals 13 and 14 (not shown) of the adjacent inverter device. , Power supply etc. can be easily shared.

なお、この場合、開口６０は、図示のように開放にしたままでも良いが、バスバーなどの配線材１５が通過する部分に切り欠きが設けられている塞ぎ部材を用意し、これを用いて開口６０を塞いで使用しても良い。   In this case, the opening 60 may be left open as shown in the figure, but a closing member provided with a notch in a portion through which the wiring member 15 such as a bus bar passes is prepared and used. 60 may be used.

本発明は、電力変換装置の部品交換に適切な筐体構造として利用することができる。   INDUSTRIAL APPLICABILITY The present invention can be used as a housing structure suitable for replacing parts of a power conversion device.

本発明による電力変換装置の第１の実施形態を示す斜視図である。1 is a perspective view showing a first embodiment of a power converter according to the present invention. 本発明による電力変換装置の第２の実施形態を示す斜視図である。It is a perspective view which shows 2nd Embodiment of the power converter device by this invention. 本発明による電力変換装置の第３の実施形態を示す斜視図である。It is a perspective view which shows 3rd Embodiment of the power converter device by this invention.

符号の説明Explanation of symbols

１：本体部カバー
２：正面カバー
３：端子台カバー
４：冷却フィンの外周部
５：取付脚部
６、６０：窓部の開口
７、７０：鎧戸状の塞ぎ部材
８、８０：係合用の耳部
１０：放熱ファン取付板
１１：放熱ファン
１２：通風孔
１３、１４：端子
１５：バスバーなどの配線材 1: Main body cover 2: Front cover 3: Terminal block cover 4: Outer peripheral portion of cooling fin 5: Mounting leg portion 6, 60: Opening of window portion 7, 70: Shading door-shaped blocking member 8, 80: For engagement Ear part 10: Radiation fan mounting plate 11: Radiation fan 12: Ventilation hole 13, 14: Terminal 15: Wiring material such as bus bar

Claims (2)

冷却フィンの外周部で筐体の一部を形成させた電力変換装置において、
前記外周部以外の筐体部分に窓用開口部を形成させ、当該窓用開口部に外部から着脱自在にした塞ぎ板を設けると共に、
前記冷却フィンの外周部の一部を放熱ファン取付部とし、当該放熱ファン取付部を外部から着脱自在に構成したことを特徴とする電力変換装置。 In the power conversion device in which a part of the housing is formed on the outer periphery of the cooling fin,
A window opening is formed in the casing portion other than the outer periphery, and a closing plate that is detachable from the outside is provided in the window opening,
A part of the outer peripheral portion of the cooling fin is a heat radiating fan mounting portion, and the heat radiating fan mounting portion is configured to be detachable from the outside. 請求項１に記載の電力変換装置において、
前記窓用開口部の内側の近傍に電力変換回路の直流電源端子が設けられていることを特徴とする電力変換装置。 The power conversion device according to claim 1,
A power conversion apparatus, wherein a DC power supply terminal of a power conversion circuit is provided in the vicinity of the inside of the window opening.
JP2004136100A 2004-04-30 2004-04-30 Power converter Expired - Fee Related JP4512410B2 (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
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JP2007325383A (en) * 2006-05-31 2007-12-13 Fuji Electric Fa Components & Systems Co Ltd Inverter apparatus
JP2009027776A (en) * 2007-07-17 2009-02-05 Fanuc Ltd Inverter apparatus
JP2009291055A (en) * 2008-05-30 2009-12-10 Fuji Electric Systems Co Ltd Housing structure of inverter unit
JP2010098858A (en) * 2008-10-16 2010-04-30 Fuji Electric Systems Co Ltd Inverter apparatus
JP2010233379A (en) * 2009-03-27 2010-10-14 Fuji Electric Systems Co Ltd Power converting device
KR101028429B1 (en) * 2009-03-26 2011-04-15 김금균 Inverter pack
JP2011166980A (en) * 2010-02-12 2011-08-25 Denso Corp Power conversion equipment
EP2600704A1 (en) * 2011-12-02 2013-06-05 DET International Holding Limited Multifunctional changing device
CN103440983A (en) * 2013-09-13 2013-12-11 深圳市英威腾电气股份有限公司 Capacitor assembly and frequency converter
CN103441654A (en) * 2013-09-13 2013-12-11 深圳市英威腾电气股份有限公司 Method for manufacturing transducer
CN103683850A (en) * 2013-11-29 2014-03-26 中冶南方（武汉）自动化有限公司 Convenient-to-maintain frequency changer
JP2021517445A (en) * 2018-03-07 2021-07-15 フラマトム・ゲーエムベーハー Plug-in converter unit with modular structure and control technology power supply system for nuclear power plants
CN113315342A (en) * 2021-04-27 2021-08-27 徐艳超 High-power converter

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KR101827243B1 (en) 2014-02-25 2018-02-08 현대일렉트릭앤에너지시스템(주) Converter and Inverter System Using the Module Type IGBT for the High Speed Railway

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JPH08223942A (en) * 1994-12-12 1996-08-30 Fuji Electric Co Ltd Loading and unloading apparatus of life component for inverter
JPH0974770A (en) * 1995-09-05 1997-03-18 Toshiba Corp Switching control apparatus
JPH11122932A (en) * 1997-10-07 1999-04-30 Sanyo Electric Co Ltd Power unit
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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007325383A (en) * 2006-05-31 2007-12-13 Fuji Electric Fa Components & Systems Co Ltd Inverter apparatus
JP2009027776A (en) * 2007-07-17 2009-02-05 Fanuc Ltd Inverter apparatus
JP4734299B2 (en) * 2007-07-17 2011-07-27 ファナック株式会社 Inverter device
JP2009291055A (en) * 2008-05-30 2009-12-10 Fuji Electric Systems Co Ltd Housing structure of inverter unit
JP2010098858A (en) * 2008-10-16 2010-04-30 Fuji Electric Systems Co Ltd Inverter apparatus
KR101028429B1 (en) * 2009-03-26 2011-04-15 김금균 Inverter pack
JP2010233379A (en) * 2009-03-27 2010-10-14 Fuji Electric Systems Co Ltd Power converting device
JP2011166980A (en) * 2010-02-12 2011-08-25 Denso Corp Power conversion equipment
EP2600704A1 (en) * 2011-12-02 2013-06-05 DET International Holding Limited Multifunctional changing device
EP2603066A3 (en) * 2011-12-02 2013-08-21 DET International Holding Limited Multifunctional changing device
CN103440983A (en) * 2013-09-13 2013-12-11 深圳市英威腾电气股份有限公司 Capacitor assembly and frequency converter
CN103441654A (en) * 2013-09-13 2013-12-11 深圳市英威腾电气股份有限公司 Method for manufacturing transducer
CN103683850A (en) * 2013-11-29 2014-03-26 中冶南方（武汉）自动化有限公司 Convenient-to-maintain frequency changer
CN103683850B (en) * 2013-11-29 2015-12-16 中冶南方（武汉）自动化有限公司 A kind of frequency converter being convenient to safeguard
JP2021517445A (en) * 2018-03-07 2021-07-15 フラマトム・ゲーエムベーハー Plug-in converter unit with modular structure and control technology power supply system for nuclear power plants
JP7321175B2 (en) 2018-03-07 2023-08-04 フラマトム・ゲーエムベーハー Modular plug-in converter unit and control technology power supply system for nuclear power plants
CN113315342A (en) * 2021-04-27 2021-08-27 徐艳超 High-power converter
CN113315342B (en) * 2021-04-27 2022-05-10 深圳市源仪电子有限公司 High-power converter

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