JP2000232288A - Power conversion device - Google Patents
Power conversion deviceInfo
- Publication number
- JP2000232288A JP2000232288A JP11033826A JP3382699A JP2000232288A JP 2000232288 A JP2000232288 A JP 2000232288A JP 11033826 A JP11033826 A JP 11033826A JP 3382699 A JP3382699 A JP 3382699A JP 2000232288 A JP2000232288 A JP 2000232288A
- Authority
- JP
- Japan
- Prior art keywords
- block
- box
- main circuit
- mounting
- power converter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Inverter Devices (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】この発明は、電力変換のため
の半導体素子とその付属品とを箱体に収納した電力変換
装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power converter in which a semiconductor element for power conversion and its accessories are housed in a box.
【0002】[0002]
【従来の技術】以下では、商用電源に接続して所望の電
圧と周波数の交流電力を出力するインバータ装置を電力
変換装置の例にして説明する。2. Description of the Related Art In the following, an inverter device connected to a commercial power supply and outputting AC power of a desired voltage and frequency will be described as an example of a power converter.
【0003】インバータ装置を構成する機器として次の
ものがある。すなわち主回路は、半導体素子としてのダ
イオードの複数をブリッジ接続した整流器と、半導体素
子としてのIGBT(絶縁ゲートバイポーラトランジス
タ)とダイオードとの逆並列接続の複数組をブリッジ接
続して得られるインバータと、これら整流器の直流側と
インバータの直流側とを結合している直流中間回路に接
続した平滑コンデンサとでなっていて、商用電源からの
交流電力はこれら整流器と平滑コンデンサとIGBTと
により所望の電圧と周波数の交流電力に変換される。し
かしこの電力変換動作にはこれら主回路機器の他に、前
記IGBTを適切な時点で順次オン・オフ動作させるた
めの制御回路やその電源回路を搭載した各種プリント
板、前記整流器とIGBTの発熱を放散させるための冷
却フィンとこの冷却フィンや平滑コンデンサの熱を装置
外へ排出させるための冷却ファン、主回路電力や制御信
号を入出力させる電線を接続するための各種端子、およ
びこれら各機器を収納する箱体などが必要である。There are the following devices constituting the inverter device. That is, the main circuit includes a rectifier obtained by bridge-connecting a plurality of diodes as a semiconductor element, an inverter obtained by bridge-connecting a plurality of sets of an anti-parallel connection of an IGBT (insulated gate bipolar transistor) and a diode serving as a semiconductor element, It is a smoothing capacitor connected to a DC intermediate circuit that connects the DC side of these rectifiers and the DC side of the inverter, and the AC power from the commercial power supply is supplied with a desired voltage by these rectifiers, the smoothing capacitor, and the IGBT. It is converted into AC power of the frequency. However, in this power conversion operation, in addition to these main circuit devices, a control circuit for sequentially turning on and off the IGBT at appropriate times, various printed boards on which the power supply circuit is mounted, and the heat generated by the rectifier and the IGBT. Cooling fins for dissipating, cooling fans for discharging the heat of the cooling fins and the smoothing condenser out of the device, various terminals for connecting wires for inputting and outputting main circuit power and control signals, and these devices A box or the like for storing is required.
【0004】図6は従来の電力変換装置を構成している
機器を分解して示した分解図であって、符号1は前面カ
バー,符号2は制御プリント板,符号3はゲート駆動プ
リント板,符号4は電源プリント板,符号5はコントロ
ールパネル,符号6は冷却フィン用冷却ファン,符号7
は装置内部冷却ファン,符号8は端子台,符号9は半導
体素子(ダイオードやIGBTなど),符号10はこの
半導体素子の冷却フィン,符号11は平滑コンデンサ,
符号12は下面カバー,符号13は右側面カバーであ
る。なお、図示以外にも箱体を構成する部品があるが、
その説明は省略する。FIG. 6 is an exploded view showing the components constituting the conventional power conversion device in an exploded manner. Reference numeral 1 denotes a front cover, reference numeral 2 denotes a control printed board, reference numeral 3 denotes a gate drive printed board, Reference numeral 4 denotes a power supply printed board, reference numeral 5 denotes a control panel, reference numeral 6 denotes a cooling fan for cooling fins, reference numeral 7
Reference numeral 8 denotes a terminal block, reference numeral 9 denotes a semiconductor element (such as a diode or IGBT), reference numeral 10 denotes a cooling fin of the semiconductor element, reference numeral 11 denotes a smoothing capacitor,
Reference numeral 12 denotes a lower surface cover, and reference numeral 13 denotes a right side cover. In addition, there are parts that make up the box body other than the illustration,
The description is omitted.
【0005】[0005]
【発明が解決しようとする課題】従来の電力変換装置
は、必要な各種機器をなるべく小形の箱体に収納するこ
とを優先的に考えていたこともあって、機能別に機器を
纏めることをしていなかった。例えば図6の従来例で
は、制御プリント板2とゲート駆動プリント板3と電源
プリント板4とが別個に取り付けられているので、それ
ぞれのプリント板に別個のコネクタを搭載し、フラット
ケーブルで各コネクタ間を接続している。ところがフラ
ットケーブルは大きな曲げ半径が必要であるため空間に
無駄を生じるし、このケーブル部分でノイズを拾う恐れ
があるのでノイズ対策をしなければならないし、ケーブ
ルとその配線作業に余分な手間と費用がかかるなどの不
具合を生じている。また、冷却フィン10を冷却するた
めの冷却フィン用冷却ファン6と、制御回路などの装置
内部での発熱を除去するための装置内部冷却ファン7と
が別々の場所に設置されていることから、電源の配線が
複雑になるし保守・点検も不便であることや、大きな熱
を発生する平滑コンデンサ11が、冷却に適した位置に
設置されていないために温度上昇が大きく、そのために
寿命が短縮されてしまう不具合がある。In the conventional power converter, the priority has been given to storing necessary various devices in a small box as much as possible, so that the devices are grouped by function. I didn't. For example, in the conventional example of FIG. 6, since the control printed board 2, the gate drive printed board 3, and the power supply printed board 4 are separately mounted, separate connectors are mounted on each printed board, and each connector is connected by a flat cable. Are connected. However, a flat cable requires a large bending radius, which wastes space, and noise may be picked up at this cable part, so noise countermeasures must be taken, and extra work and cost are required for the cable and its wiring work. Is occurring. Further, since the cooling fin cooling fan 6 for cooling the cooling fins 10 and the apparatus internal cooling fan 7 for removing heat generated inside the apparatus such as a control circuit are installed at different places, The power supply wiring becomes complicated, maintenance and inspection are inconvenient, and the smoothing capacitor 11, which generates a large amount of heat, is not installed at a position suitable for cooling. There is a problem that is done.
【0006】図7はインバータ装置へ直流電力を入力さ
せる場合の従来例を示した主回路接続図である。インバ
ータ装置20の端子21A,21B,21Cに商用電源
を接続し、ダイオードで構成した整流器22でこの商用
電力を直流電力に変換して直流中間回路へ出力する。直
流中間回路に接続した平滑コンデンサ11は、この直流
電力に含まれる脈動分を吸収・除去して平滑な直流電力
にしてIGBTとダイオードとの逆並列接続でなるイン
バータ23へ与える。インバータ23はこの直流電力を
所望の電圧と周波数の交流電力に変換して、負荷である
誘導電動機24を回転させる。このとき端子25Aと2
5Pとは短絡しておく。冷却ファン51(以下では冷却
フィン用冷却ファン6と装置内部冷却ファン7とを纏め
てこのように表現する)は一般に商用交流電力で運転す
るから、図示のように端子25A,25B,25Cを介
して電力変換装置20へ導入された商用交流電力を、当
該電力変換装置20の内部で分岐して冷却ファン51へ
供給する。FIG. 7 is a main circuit connection diagram showing a conventional example when DC power is input to an inverter device. A commercial power supply is connected to the terminals 21A, 21B, 21C of the inverter device 20, and this commercial power is converted into DC power by a rectifier 22 composed of a diode and output to a DC intermediate circuit. The smoothing capacitor 11 connected to the DC intermediate circuit absorbs and removes the pulsating component included in the DC power, and supplies the smoothed DC power to the inverter 23 which is an anti-parallel connection of the IGBT and the diode. The inverter 23 converts the DC power into AC power having a desired voltage and frequency, and rotates an induction motor 24 as a load. At this time, terminals 25A and 2
Short-circuit with 5P. Since the cooling fan 51 (hereinafter, the cooling fin cooling fan 6 and the device internal cooling fan 7 are collectively expressed as described above) is generally operated with commercial AC power, as shown in the drawing, the cooling fan 51 is connected via terminals 25A, 25B, and 25C. The commercial AC power introduced into the power converter 20 is branched inside the power converter 20 and supplied to the cooling fan 51.
【0007】インバータ23に可変電圧・可変周波数の
交流電力を出力させれば誘導電動機24を可変速運転で
きる。誘導電動機24の減速時にはその運動エネルギー
が電力に変換され、インバータ23を経て直流中間回路
へ回生されるが、この回生電力を有効利用するために、
最近ではダイオードで構成した整流器22の代わりにI
GBTなどの半導体スイッチ素子で構成したコンバータ
26を使用するが、その際には端子25Aと25Pとの
短絡は開放し、端子27Pと端子25Pとを接続し、端
子27Nと端子25Nとを接続する。このような回路構
成により、誘導電動機24の減速時に発生する電力を、
誘導電動機24→インバータ23→端子25P,25N
→端子27P,27N→コンバータ26→商用電源の径
路で回生することができる。If the inverter 23 outputs AC power of a variable voltage and a variable frequency, the induction motor 24 can be operated at a variable speed. At the time of deceleration of the induction motor 24, its kinetic energy is converted to electric power and is regenerated to the DC intermediate circuit via the inverter 23. In order to effectively use the regenerated electric power,
Recently, instead of the rectifier 22 composed of a diode, I
A converter 26 composed of a semiconductor switch element such as a GBT is used. In this case, the short circuit between the terminals 25A and 25P is released, the terminals 27P and 25P are connected, and the terminals 27N and 25N are connected. . With such a circuit configuration, electric power generated when the induction motor 24 decelerates is
Induction motor 24 → Inverter 23 → Terminals 25P, 25N
→ Terminal 27P, 27N → Converter 26 → Regeneration can be performed on the path of commercial power supply.
【0008】また、インバータ装置を収納する箱体は通
常は開放形であって、異物が侵入すれば短絡事故や接地
事故を起こす恐れがある。そこで異物が侵入する恐れの
ある場所や塵埃の多い場所などにインバータ装置20を
設置する場合は、異物や塵埃の侵入を防止できる構造の
箱体が必要になるが、このような構造の箱体は標準品と
は異なることから別途に製作しなければならない。それ
故完成までに長期間が必要になるし、高価になる欠点を
有する。Further, the box housing the inverter device is usually open, and if foreign matter enters, a short circuit accident or a ground accident may occur. Therefore, when installing the inverter device 20 in a place where foreign matter may enter or where there is a lot of dust, a box having a structure capable of preventing entry of foreign matter or dust is required. Must be manufactured separately because it is different from the standard product. Therefore, it takes a long time to complete and has the disadvantage of being expensive.
【0009】そこでこの発明の目的は、電力変換装置に
内蔵している発熱部品を有効に冷却できるようにすると
共に、当該電力変換装置の組立,保守,点検の手間を軽
減し、異物や塵埃の侵入を防止する保護構造が容易に且
つ素早く構成できるようにすることにある。Accordingly, an object of the present invention is to make it possible to effectively cool a heat-generating component incorporated in a power converter, to reduce the time required for assembling, maintaining and inspecting the power converter, and to reduce the amount of foreign matter and dust. A protection structure for preventing intrusion can be easily and quickly formed.
【0010】[0010]
【課題を解決するための手段】前記の目的を達成するた
めに、この発明の電力変換装置では、当該電力変換装置
を複数のブロックに分けて構成する。すなわち主回路ブ
ロックは半導体素子とその冷却フィン,主回路開閉機
器,平滑コンデンサ,抵抗器等とこれらを装着する主回
路機器取付け板,ならびに前記各機器相互間を接続する
導体とで構成し、プリント板ブロックは前記半導体素子
制御用の複数のプリント板とこれら各プリント板を装着
するプリント板取付けケース,ならびに各プリント板相
互間を接続するコネクターとで構成し、冷却ファンブロ
ックは前記冷却フィンやプリント板を含む各機器へ冷却
用空気を送り込む冷却ファンとその取付け台で構成し、
端子台ブロックは当該電力変換装置へ導入される電線を
接続する主回路端子台と制御回路端子台とこの主回路端
子台から前記主回路ブロックまでの主回路導体とを一体
化して構成し、箱体ブロックはこれら各ブロックを収納
するために下面と上面は強固な枠組構造としこの上下両
枠組に左右側面板と前面板と背面板を取り付ける構造と
し、これら各ブロックの組み合わせで電力変換装置を形
成できるようにするものとする。In order to achieve the above object, in the power converter of the present invention, the power converter is divided into a plurality of blocks. That is, the main circuit block is composed of a semiconductor element and its cooling fins, a main circuit switching device, a smoothing capacitor, a resistor, etc., a main circuit device mounting plate for mounting these components, and a conductor for connecting the devices to each other. The board block is composed of a plurality of printed boards for controlling the semiconductor elements, a printed board mounting case for mounting each of the printed boards, and a connector for connecting the printed boards to each other. It consists of a cooling fan that sends cooling air to each device including the board and its mounting base,
The terminal block is configured by integrating a main circuit terminal block, a control circuit terminal block, and a main circuit conductor from the main circuit terminal block to the main circuit block, which connect electric wires to be introduced into the power converter, and a box. The body block has a strong frame structure on the lower surface and upper surface to accommodate these blocks, and the left and right side plates, the front plate, and the rear plate are attached to the upper and lower frames, and a power converter is formed by combining these blocks Shall be able to do so.
【0011】前記箱体ブロックには、所定寸法を越える
異物の侵入を阻止する隙間を有し、且つこの隙間の合計
面積は前記冷却ファンブロックが要求する通風量を通過
させるに十分な面積を備えた保護カバーを、必要に応じ
て当該箱体ブロックの下側部分または上側部分に付加で
きる取付け構造を備えるものとする。または必要に応じ
て半導体素子の冷却フィンを収納する部分とそれ以外の
機器を収納する部分との境界に沿って、当該箱体の周囲
にL字状の取付け具を付加するための取付け構造を備え
る。あるいはこのL字状の取付け具にパッキングを介し
て取付け板や背面カバーを取り付けるものとする。The box block has a gap for preventing foreign substances exceeding a predetermined size from entering, and the total area of the gap is sufficient to allow the air flow required by the cooling fan block to pass. The protective cover is provided with a mounting structure that can be added to the lower portion or the upper portion of the box block as required. Or, if necessary, an attachment structure for adding an L-shaped attachment around the box along a boundary between a portion for accommodating the cooling fins of the semiconductor element and a portion for accommodating other devices. Prepare. Alternatively, an attachment plate or a back cover is attached to this L-shaped attachment via a packing.
【0012】[0012]
【発明の実施の形態】図1は電力変換装置を分解して図
示することで本発明の第1実施例を表した分解図であ
る。この図1において、主回路ブロック36には半導体
素子としてのダイオードとIGBTとが装着されている
が、この主回路ブロック36の裏側(見えない部分)に
はこれら半導体素子の冷却フィンがあり、その下側部分
に平滑コンデンサ37が装着されているのが見える。主
回路ブロック36の上側(図では右側)の箱状部分には
冷却ファンブロック34が挿入される。冷却ファンブロ
ック34は上部に1台の装置内部冷却ファンが、下部に
2台の冷却フィン用冷却ファンが装着されていて、誘引
通風により下側ケースアダプタ38を経て吸入した冷却
空気で先ず平滑コンデンサ37を冷却し、次いで冷却フ
ィンを冷却したのち上側ケースアダプタ39を経て箱外
へ放出される。端子台ブロック35は主回路ブロック3
6の下側部分に積み重ねられる。コントロールパネル4
0が装着されている制御プリント板32と電源・ゲート
プリント板33とは積み重ねてプリント板収納ケース
(図示せず)に一体化して取り付けることにより、プリ
ント板ブロックが形成される。この積み重ねにより制御
プリント板32に装着したコネクタと電源・ゲートプリ
ント板33に装着したコネクタとが直接接触して両プリ
ント板を接続するので、フラットケーブルを使用する必
要が無くなる。FIG. 1 is an exploded view showing a first embodiment of the present invention by disassembling and illustrating a power converter. In FIG. 1, a diode as a semiconductor element and an IGBT are mounted on the main circuit block 36, and cooling fins for these semiconductor elements are provided on the back side (invisible portion) of the main circuit block 36. It can be seen that the smoothing capacitor 37 is mounted on the lower part. A cooling fan block 34 is inserted into a box-shaped portion on the upper side (right side in the figure) of the main circuit block 36. The cooling fan block 34 is provided with one cooling fan inside the apparatus at the upper part and two cooling fin cooling fans at the lower part. The cooling air sucked through the lower case adapter 38 by the induced draft first sucks the smoothing condenser. After cooling the cooling fins and cooling the cooling fins, the cooling fins are discharged out of the box via the upper case adapter 39. Terminal block 35 is main circuit block 3
6 are stacked on the lower part. Control panel 4
The printed circuit board block is formed by stacking the control printed circuit board 32 to which the “0” is mounted and the power / gate printed circuit board 33 and attaching them integrally to a printed board storage case (not shown). By this stacking, the connector mounted on the control printed board 32 and the connector mounted on the power supply / gate printed board 33 come into direct contact to connect both printed boards, so that it is not necessary to use a flat cable.
【0013】箱体の下側と上側は、軽合金のダイキャス
トで形成した下側ケースアダプタ38と上側ケースアダ
プタ39を使用し、箱体の周囲を覆う板はこれら上下側
ケースアダプタ38,39にねじ止めすることで、強固
な箱体を形成することができる。The lower and upper sides of the box use a lower case adapter 38 and an upper case adapter 39 formed by die-casting of a light alloy. A strong box can be formed by screwing the screw.
【0014】図2は本発明の第2実施例を表した構造図
であって、インバータ装置70の下側部分に下側保護カ
バー71を取付けることにより、所定寸法よりも大きな
異物(例えばIECで定める保護等級IP20では12
mmを越える固形異物)がインバータ装置70の内部に侵
入するのを防止できる。FIG. 2 is a structural view showing a second embodiment of the present invention. By attaching a lower protective cover 71 to a lower portion of an inverter device 70, a foreign matter larger than a predetermined size (for example, IEC) is used. 12 for protection class IP20
A solid foreign object exceeding mm) can be prevented from entering the inside of the inverter device 70.
【0015】図3は本発明の第3実施例を表した構造図
であって、インバータ装置70の下側部分には下側保護
カバー71を取付け、上側部分には上側保護カバー72
を取付けることにより、NEMA1が要求する保護等級
をクリヤーできる。FIG. 3 is a structural view showing a third embodiment of the present invention. A lower protective cover 71 is attached to a lower portion of an inverter device 70, and an upper protective cover 72 is attached to an upper portion.
By attaching the, the degree of protection required by the NEMA 1 can be cleared.
【0016】図4は本発明の第4実施例を表した構造図
であって、インバータ装置70の下側部分に下側保護カ
バー71を取付けると共に、左右両側面には半導体素子
の冷却フィンを収納する部分とそれ以外の機器を収納す
る部分との境界に沿ってL字形状のL字形取付け具81
とパッキング82を備えることにより、NEMA12が
要求する保護等級をクリヤーできる。FIG. 4 is a structural view showing a fourth embodiment of the present invention, in which a lower protective cover 71 is attached to a lower portion of an inverter device 70, and cooling fins for semiconductor elements are provided on both left and right sides. An L-shaped fitting 81 having an L-shape along the boundary between the storage portion and the other device storage portion
And the packing 82, the degree of protection required by the NEMA 12 can be cleared.
【0017】図5は本発明の第5実施例を表した構造図
であって、インバータ装置70の下側部分に下側保護カ
バー71を取付けると共に、左右両側面には半導体素子
の冷却フィンを収納する部分とそれ以外の機器を収納す
る部分との境界に沿ってL字形状のL字形取付け具81
を設ける。このL字形取付け具81にはパッキング83
を介して取付け板84を取り付けると共に、当該インバ
ータ装置70の背面部分を背面カバー85で覆う。この
背面カバー85により冷却フィン10へ水滴が落下して
内部へ侵入するのを防止することができる。また、L字
形取付け具81にパッキング83を介して取付け板84
を取り付けることにより、冷却フィン10部分に浮遊し
ている塵埃が、清浄であるべき制御回路部分へ侵入する
のを遮断できて、IECで定める保護等級IP54に対
応させることができる。FIG. 5 is a structural view showing a fifth embodiment of the present invention, in which a lower protective cover 71 is attached to a lower portion of an inverter device 70, and cooling fins of semiconductor elements are provided on both left and right sides. An L-shaped fitting 81 having an L-shape along the boundary between the storage portion and the other device storage portion
Is provided. The L-shaped fitting 81 has a packing 83.
The mounting plate 84 is mounted via the cover 70, and the rear surface of the inverter device 70 is covered with a rear cover 85. The back cover 85 can prevent water drops from falling into the cooling fins 10 and entering the inside. Also, a mounting plate 84 is attached to the L-shaped mounting tool 81 via a packing 83.
By attaching, the dust floating on the cooling fin 10 portion can be prevented from entering the control circuit portion to be cleaned, and it can correspond to the protection class IP54 defined by IEC.
【0018】[0018]
【発明の効果】従来の電力変換装置は、これに内蔵する
各機器を機能別に纏めることをせずに別個に収納してい
たために、例えば組立や保守・点検に手間がかかった
り、発熱部品の冷却が効果的に行われなかったり、機器
相互間の配線長さが長くなってノイズや危険や配線の手
間がかかるなど各種の不都合があったが、本発明では、
内蔵する機器を機能毎に別個のブロックに集約したの
で、例えばプリント板同士はコネクタの直接接触により
接続されるから配線を省略できる効果が得られるし、複
数の冷却ファンを纏めることで電源からの配線や保守・
点検が容易になる効果が得られる。更に平滑コンデンサ
を効率良く冷却できる配置にして寿命を延長できる効果
も得られる。また箱体に保護カバーなどの取付け部を予
め加工しておくなどの処置により、装置の保護等級を向
上させる要求に簡単に対応できることで、非標準の保護
構造を短期間で素早く供給できる効果も得られる。According to the conventional power converter, since each device contained therein is housed separately without being grouped by function, for example, it takes much time for assembling, maintenance and inspection, and the generation of heat-generating parts. Although there were various inconveniences such as cooling not being performed effectively and the length of wiring between devices becoming longer, noise, danger, and time and labor required for wiring, in the present invention,
Since the built-in devices are grouped into separate blocks for each function, for example, the printed circuit boards are connected by direct contact of the connector, so that the effect of eliminating the wiring is obtained. Wiring and maintenance
The effect that inspection becomes easy is obtained. Furthermore, the effect of extending the life can be obtained by arranging the smoothing capacitor so that it can be cooled efficiently. In addition, it is possible to easily respond to requests to improve the degree of protection of the device by taking measures such as processing the mounting parts such as protective covers on the box in advance, so that non-standard protective structures can be quickly supplied in a short period of time. can get.
【図1】電力変換装置を分解して図示することで本発明
の第1実施例を表した分解図FIG. 1 is an exploded view showing a first embodiment of the present invention by disassembling and illustrating a power converter.
【図2】本発明の第2実施例を表した構造図FIG. 2 is a structural diagram showing a second embodiment of the present invention.
【図3】本発明の第3実施例を表した構造図FIG. 3 is a structural diagram showing a third embodiment of the present invention.
【図4】本発明の第4実施例を表した構造図FIG. 4 is a structural diagram showing a fourth embodiment of the present invention.
【図5】本発明の第5実施例を表した構造図FIG. 5 is a structural view showing a fifth embodiment of the present invention.
【図6】従来の電力変換装置を構成している機器を分解
して示した分解図FIG. 6 is an exploded view showing a device constituting a conventional power converter in an exploded manner.
【図7】インバータ装置へ直流電力を入力させる場合の
従来例を示した主回路接続図FIG. 7 is a main circuit connection diagram showing a conventional example when DC power is input to an inverter device.
2,32 制御プリント板 3 ゲート駆動プリント板 4 電源プリント板 5,40 コントロールパネル 6 冷却フィン用冷却ファン 7 装置内部冷却ファン 8 端子台 9 半導体素子 10 冷却フィン 11,37 平滑コンデンサ 12 下面カバー 13 右側面カバー 20,70 インバータ装置 21A,B,C 端子 22 整流器 23 インバータ 24 誘導電動機 25P,N 端子 26 コンバータ 27P,N 端子 31 前面カバー 33 電源・ゲートプリント板 34 冷却ファンブロック 35 端子台ブロック 36 主回路ブロック 38 下側ケースアダプタ 39 上側ケースアダプタ 51 冷却ファン 71 下側保護カバー 72 上側保護カバー 81 L字形取付け具 82,83 パッキング 84 取付け板 85 背面カバー 2, 32 Control printed board 3 Gate drive printed board 4 Power supply printed board 5, 40 Control panel 6 Cooling fin cooling fan 7 Internal cooling fan 8 Terminal block 9 Semiconductor element 10 Cooling fin 11, 37 Smoothing capacitor 12 Bottom cover 13 Right side Front cover 20, 70 Inverter device 21A, B, C terminal 22 Rectifier 23 Inverter 24 Induction motor 25P, N terminal 26 Converter 27P, N terminal 31 Front cover 33 Power supply / gate printed board 34 Cooling fan block 35 Terminal block block 36 Main circuit Block 38 Lower case adapter 39 Upper case adapter 51 Cooling fan 71 Lower protective cover 72 Upper protective cover 81 L-shaped mounting 82,83 Packing 84 Mounting plate 85 Back cover
Claims (5)
前記半導体素子の動作により、入力電力をこれとは異な
った電力に変換させて出力する電力変換装置において、 前記電力変換装置を、前記半導体素子とその冷却フィ
ン,主回路開閉機器,平滑コンデンサ,抵抗器等,とこ
れらを装着する主回路機器取付け板,この主回路機器取
付け板に装着された前記各機器相互間を接続する導体と
でなる主回路ブロックと、前記半導体素子制御用の複数
のプリント板,これら複数プリント板を装着するプリン
ト板取付けケース,このプリント板取付けケースに装着
されたプリント板相互間を接続するコネクターとでなる
プリント板ブロックと、前記冷却フィンやプリント板を
含む各機器へ冷却用空気を送り込む冷却ファンとその取
付け台でなる冷却ファンブロックと、当該電力変換装置
へ導入される電線を接続する主回路端子台と制御回路端
子台とこの主回路端子台から前記主回路ブロックまでの
主回路導体とを一体化している端子台ブロックと、これ
ら各ブロックを収納するために下面と上面は強固な枠組
構造にしてこの上下両枠組に左右側面板と前面板と背面
板を取り付けてなる箱体ブロックとに分割し、これら各
ブロックを組み合わせることを特徴とする電力変換装
置。1. A semiconductor device and its accessories are housed in a box,
A power converter that converts input power into power different from the power by the operation of the semiconductor element and outputs the converted power. The power converter includes the semiconductor element and its cooling fin, a main circuit switching device, a smoothing capacitor, and a resistor. A main circuit block composed of a device, a main circuit device mounting plate for mounting these components, a conductor mounted on the main circuit device mounting plate for connecting the devices, and a plurality of prints for controlling the semiconductor element. Board, a printed board mounting case for mounting the plurality of printed boards, a printed board block including a connector for connecting the printed boards mounted on the printed board mounting case, and each device including the cooling fins and the printed boards. A cooling fan that feeds cooling air and a cooling fan block consisting of its mounting base, and an electric wire introduced to the power converter The main circuit terminal block to be connected, the control circuit terminal block, the terminal block block integrating the main circuit conductors from the main circuit terminal block to the main circuit block, and the lower surface and the upper surface for storing these blocks are A power conversion device characterized by having a strong frame structure, dividing the upper and lower frames into a left and right side plate, a front plate and a back plate, and combining these blocks.
阻止する隙間を備えてこの隙間は前記冷却ファンブロッ
クが要求する通風量を通過させ得る面積を有する下部保
護カバーを、必要に応じて当該箱体ブロックの下側部分
に付加するための取付け構造を備えることを特徴とする
電力変換装置。2. The power converter according to claim 1, wherein the box block has a gap for preventing intrusion of foreign matter exceeding a predetermined size, and the gap has a ventilation amount required by the cooling fan block. A power conversion device comprising a mounting structure for adding a lower protective cover having an area that can pass therethrough to a lower portion of the box block as necessary.
阻止する隙間を備えてこの隙間は前記冷却ファンブロッ
クが要求する通風量を通過させ得る面積を有する下部保
護カバーと上部保護カバーを、必要に応じて当該箱体ブ
ロックの下側部分と上側部分に付加するための取付け構
造を備えることを特徴とする電力変換装置。3. The power converter according to claim 1, wherein the box block has a gap for preventing the intrusion of foreign matter exceeding a predetermined size, and the gap has a ventilation volume required by the cooling fan block. A power converter, comprising: a mounting structure for adding a lower protective cover and an upper protective cover having an area that can pass therethrough to lower and upper portions of the box block as required.
される部分とそれ以外の機器が収納される部分との境界
に沿って、当該箱体の周囲にL字形状の取付け具を付加
するための取付け構造を備えることを特徴とする電力変
換装置。4. The power converter according to claim 1, wherein the box block is provided along a boundary between a portion where a cooling fin of a semiconductor element is stored and a portion where other devices are stored. A power conversion device comprising a mounting structure for adding an L-shaped mounting tool around the box.
される部分とそれ以外の機器が収納される部分との境界
に沿って、当該箱体の周囲にL字形状の取付け具を付加
するための取付け構造を備え、このL字形状の取付け具
にパッキングを介して取付け板を取り付けると共に、当
該電力変換装置の背面部分には落下する水滴を遮る背面
カバーを取付け、所定寸法を越える異物の侵入を阻止す
る隙間を備えてこの隙間は前記冷却ファンブロックが要
求する通風量を通過させ得る面積を有する下部保護カバ
ーと上部保護カバーを、必要に応じて当該箱体ブロック
の下側部分または上側部分に付加するための取付け構造
と、を備えることを特徴とする電力変換装置。5. The power converter according to claim 1, wherein the box block is provided along a boundary between a portion where a cooling fin of a semiconductor element is stored and a portion where other devices are stored. A mounting structure for attaching an L-shaped mounting tool around the box body is provided. A mounting plate is mounted on the L-shaped mounting tool via packing, and a dropping part is attached to a rear surface of the power converter. A back cover for blocking water droplets is provided, and a gap is provided for preventing foreign matter exceeding a predetermined size from entering. The gap is provided with a lower protective cover and an upper protective cover having an area capable of passing a ventilation volume required by the cooling fan block. And a mounting structure for adding to the lower portion or the upper portion of the box block as required.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP03382699A JP3843634B2 (en) | 1999-02-12 | 1999-02-12 | Power converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP03382699A JP3843634B2 (en) | 1999-02-12 | 1999-02-12 | Power converter |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2000232288A true JP2000232288A (en) | 2000-08-22 |
JP3843634B2 JP3843634B2 (en) | 2006-11-08 |
Family
ID=12397305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP03382699A Expired - Fee Related JP3843634B2 (en) | 1999-02-12 | 1999-02-12 | Power converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3843634B2 (en) |
Cited By (17)
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JP2005348534A (en) * | 2004-06-03 | 2005-12-15 | Fuji Electric Fa Components & Systems Co Ltd | Inverter |
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