JP4715456B2 - Waterproof structure of power converter for railway vehicles - Google Patents

Waterproof structure of power converter for railway vehicles Download PDF

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JP4715456B2
JP4715456B2 JP2005325583A JP2005325583A JP4715456B2 JP 4715456 B2 JP4715456 B2 JP 4715456B2 JP 2005325583 A JP2005325583 A JP 2005325583A JP 2005325583 A JP2005325583 A JP 2005325583A JP 4715456 B2 JP4715456 B2 JP 4715456B2
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packing
side cowl
heat receiving
receiving plate
power unit
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JP2007131129A (en
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神田　　淳
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Fuji Electric Co Ltd
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Fuji Electric Systems Co Ltd
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Description

この発明は、鉄道車両の床下に設置される鉄道車両用電力変換装置の防水構造に関する。   The present invention relates to a waterproof structure for a railway vehicle power converter installed under the floor of a railway vehicle.

最近の鉄道車両用電力変換装置は、それを構成するコンバータ回路およびインバータ回路を１つのパワーユニットとして纏める方向にある。図５は、例えば最近の交流電車システムを示す電気回路図である。ここには、主変圧器ＭＴｒの単相２次電圧を交流／直流コンバータＡＣ／ＤＣにより直流電圧に変換し、その直流電圧を直流／交流コンバータＤＣ／ＡＣ、例えばＶＶＶＦインバータにより３相交流電圧に変換し、電車の駆動電動機（誘導機：ＩＭ）に可変電圧可変周波数の電力を供給するＣＩ（コンバータ・インバータ）システムが採用されている。   Recent railcar power converters are in a direction to combine a converter circuit and an inverter circuit constituting the power converter as one power unit. FIG. 5 is an electric circuit diagram showing a recent AC train system, for example. Here, a single-phase secondary voltage of the main transformer MTr is converted into a DC voltage by an AC / DC converter AC / DC, and the DC voltage is converted into a three-phase AC voltage by a DC / AC converter DC / AC, for example, a VVVF inverter. A CI (converter / inverter) system for converting and supplying electric power of variable voltage and variable frequency to a train drive motor (induction machine: IM) is employed.

ＡＣ／ＤＣコンバータやＶＶＶＦインバータには、高圧大電力変換回路である３レベル変換回路が用いられる。また、コンバータやインバータに使用される回路部品は、ダイオードと一体となってモジュール化されたＩＧＢＴ（絶縁ゲートバイポーラトランジスタ）モジュールと、ゲートユニットおよびフィルタコンデンサなどがそれぞれ１つのパワーユニットとして構成される。   For the AC / DC converter and the VVVF inverter, a three-level conversion circuit that is a high-voltage high-power conversion circuit is used. In addition, circuit components used for converters and inverters are configured as an IGBT (insulated gate bipolar transistor) module integrated with a diode, a gate unit, a filter capacitor, and the like as one power unit.

パワーユニットが収納された状態において、車両側面側の開閉扉（以下、側カウルとも言う）を閉めたときには、図６に斜線を施して示す密閉部としての機器室と、通気部または開放部（放熱フィン８）間には完全に防水が確保される一方、側カウル３を開けたときには車両側面よりゲートユニット７の点検ができ、さらにパワーユニット３１の固定ボルトを外すことにより、パワーユニット３１を車両側面より脱着が可能な構造であることが要求される。
なお、側カウルと機器室との間にパッキンを挿入して防水，防塵構造とすることは、例えば特許文献１に示されている。 When the door on the side of the vehicle (hereinafter also referred to as a side cowl) is closed in the state in which the power unit is housed, an equipment room as a sealed portion shown by hatching in FIG. While the waterproofing between the fins 8) is completely secured, the gate unit 7 can be inspected from the side of the vehicle when the side cowl 3 is opened, and the power unit 31 can be removed from the side of the vehicle by removing the fixing bolts of the power unit 31. The structure is required to be removable.
For example, Patent Document 1 discloses that a gasket is inserted between the side cowl and the equipment room to form a waterproof and dustproof structure.

図６に、防水，防塵構造の従来例を示す。図７は図６のＤ方向から見た側面図である。
図６で側カウル３を閉めた状態では、側カウル３および電力変換装置２に設置されるパッキン１４１により、水などの浸入経路１０１は遮断される。図７に示す左端面パッキン１４３は受熱板６の左端面に設置され、同様に右端面パッキン１４２は受熱板６の右端面に設置され、車両または車体１の側面より見て左側板１０に設けられた仕切り板９、および右側板１１に設けられた仕切り板９の上面と接触することにより、水などの浸入経路１０２が遮断される。 FIG. 6 shows a conventional example of a waterproof and dustproof structure. FIG. 7 is a side view seen from the direction D of FIG.
In the state where the side cowl 3 is closed in FIG. 6, the intrusion path 101 such as water is blocked by the side cowl 3 and the packing 141 installed in the power converter 2. The left end surface packing 143 shown in FIG. 7 is installed on the left end surface of the heat receiving plate 6. Similarly, the right end surface packing 142 is installed on the right end surface of the heat receiving plate 6 and is provided on the left side plate 10 when viewed from the side of the vehicle or the vehicle body 1. By contacting the partition plate 9 and the upper surface of the partition plate 9 provided on the right side plate 11, the intrusion path 102 such as water is blocked.

奥端面パッキン１４４は受熱板６の奥端面に設置され、車両側面より見て奥部に設けられた仕切り板９の上面と接触することにより、水などの浸入経路１０３が遮断される。また、パワーユニットは車両側面より脱着可能な構造とすることから、パワーユニットのラッチ受けフレーム１２と装置の仕切り板９との間には隙間１３（ａ）が開いており、この隙間に防水シールを施工することで水などの浸入経路１０４が遮断される。なお、ラッチ受けフレーム１２にはラッチ受け４１が形成されている（図６参照）。
以上により、機器室の防水，防塵性が確保される。 The back end face packing 144 is installed on the back end face of the heat receiving plate 6 and comes into contact with the upper surface of the partition plate 9 provided in the back as viewed from the side of the vehicle, thereby blocking the intrusion path 103 such as water. Since the power unit is structured to be removable from the side of the vehicle, a gap 13 (a) is opened between the latch receiving frame 12 of the power unit and the partition plate 9 of the apparatus, and a waterproof seal is installed in this gap. By doing so, the intrusion path 104 for water or the like is blocked. A latch receiver 41 is formed on the latch receiving frame 12 (see FIG. 6).
As a result, the waterproof and dustproof properties of the equipment room are ensured.

図８に、防水，防塵構造の別の従来例を示す。図９は図８のＥ方向から見た側面図である。
受熱板６の上面にパワーユニット回路部品５を密閉収納できるパワーユニット密閉カバー３４を設置し、この密閉カバー３４には側カウル３を開けたときに、ゲートユニット７の点検ができるように、車両側面に開口部３６を設けてある。側カウル３にはこの開口部３６とほぼ同一の大きさのダクト３５を設け、ダクト３５の先端にはパッキン１４６を設けてある。これにより、側カウル３を閉めるとパッキン１４６と密閉カバー３４の開口部端面が接触することで、水などの浸入経路１０１が遮断される。 FIG. 8 shows another conventional example of a waterproof and dustproof structure. FIG. 9 is a side view seen from the direction E of FIG.
A power unit sealing cover 34 capable of sealingly storing the power unit circuit component 5 is installed on the upper surface of the heat receiving plate 6, and the gate cover 7 can be inspected when the side cowl 3 is opened. An opening 36 is provided. The side cowl 3 is provided with a duct 35 having the same size as the opening 36, and a packing 146 is provided at the tip of the duct 35. Thus, when the side cowl 3 is closed, the end surface of the opening of the packing 146 and the sealing cover 34 comes into contact with each other, so that the intrusion path 101 for water or the like is blocked.

また、パワーユニット密閉カバー３４と受熱板６の接触面の全面にわたってパッキン１４５が設けてあることにより、水などの浸入経路１０２，１０３および１０４が遮断される。パワーユニット密閉カバー３４には、パワーユニット回路部品５と電力変換装置の回路部品とを機器室内で接続するために、車両中央側にも開口部３７を設けてある。電力変換装置にはこの開口部３７とほぼ同一の大きさの開口部を設けてあり、開口部の先端にはパッキン１４７を設けてあり、パワーユニットを電力変換装置に収納するとパッキン１４７が密閉カバー３４に接触することにより、水などの浸入経路１０５が遮断される。
以上により、機器室の防水，防塵性が確保される。 Further, since the packing 145 is provided over the entire contact surface between the power unit sealing cover 34 and the heat receiving plate 6, the intrusion paths 102, 103 and 104 such as water are blocked. The power unit sealing cover 34 is also provided with an opening 37 on the vehicle center side in order to connect the power unit circuit component 5 and the circuit component of the power converter in the equipment room. The power conversion device is provided with an opening of approximately the same size as the opening 37, and a packing 147 is provided at the tip of the opening. When the power unit is housed in the power conversion device, the packing 147 is hermetically sealed. The intrusion path 105 for water or the like is blocked by contact with the water.
As a result, the waterproof and dustproof properties of the equipment room are ensured.

特開平１１−１８９１５４号公報Japanese Patent Laid-Open No. 11-189154

図６の電力変換装置では、装置の仕切り板とパワーユニットとの隙間に水や塵埃の浸入防止のためにシ−ルを施工するため、シール作業不良による水などの浸入やパワーユニットの交換作業時間が増加するという問題がある。
図８の電力変換装置では、パワーユニットに密閉カバーを設ける必要があり、その分だけ質量が大きくなる。また側カウルにもパッキン付きダクトを設けるため、その分質量が大きくなる、素子やフィルタコンデンサの点検や交換時には密閉カバーを取り外す必要があるため、点検や交換のための作業時間が増加するなどの問題がある In the power conversion device of FIG. 6, since a seal is installed in the gap between the partition plate of the device and the power unit to prevent ingress of water and dust, the time for infiltration of water and the replacement of the power unit due to poor sealing work. There is a problem of increasing.
In the power conversion device of FIG. 8, it is necessary to provide a sealing cover on the power unit, and the mass increases accordingly. In addition, since a duct with packing is also provided on the side cowl, the mass increases accordingly, and it is necessary to remove the hermetic cover when inspecting or replacing the element or filter capacitor. There's a problem

したがって、この発明の課題は、１）パワーユニットの脱着時にパワーユニットと装置の間に防水用のシール施工を行なわなくても機器室の防水，防塵性を確保すること、２）パワーユニットに密閉カバーを設けず、また側カウルにダクトを設けずに電力変換装置の構造を簡単にし、パワーユニットや電力変換装置の小型，軽量化を実現すること、３）パワーユニットの素子やフィルタコンデンサやゲート回路の点検または交換の作業時間を低減すること、にある。   Therefore, the object of the present invention is to 1) ensure the waterproofing and dustproofing of the equipment room without installing a waterproof seal between the power unit and the device when the power unit is attached / detached, and 2) providing a sealing cover on the power unit. And simplifying the structure of the power converter without providing a duct on the side cowl, and reducing the size and weight of the power unit and power converter. 3) Inspection or replacement of power unit elements, filter capacitors, and gate circuits Is to reduce the working time.

このような課題を解決するため、請求項１の発明では、鉄道車両用電力変換装置を構成するコンバータ部とインバータ部とからなるパワーユニット回路部品を受熱板の一方の面に配置して密閉部に収納するとともに、受熱板の他方の面には放熱フィンを配置し、密閉部に設けた開口部を覆う開閉可能な側カウルを有し、前記パワーユニットを開口部から出し入れ可能にした鉄道車両用電力変換装置において、
前記受熱板の出し入れ方向の左右両端面と奥端面にそれぞれパッキンを設置し、これらパッキンは前記受熱板の出し入れ方向の左右両側板と奥部のそれぞれの仕切り板の上面に接触し、前記開口部の左右両辺および上辺をシールするパッキンを設置し、前記左右両仕切り板には箱側パッキンを設置し、前記側カウルには左右方向に側カウルパッキンを設置するとともにこの側カウルパッキンを取り付けるパッキン枠に前記箱側パッキンを押さえる側カウルパッキン受けを設置し、前記受熱板端部には前記側カウルパッキンを押さえるパッキン押えを設置したことを特徴とする。
この請求項１の発明においては、前記側カウルを閉めることにより、まず、前記側カウルパッキンに前記パッキン押えが接触し、次いで、前記箱側パッキンに側カウルパッキン受けが接触する構成とすることができる（請求項２の発明）。

In order to solve such a problem, in the invention of claim 1, a power unit circuit component composed of a converter part and an inverter part constituting a power conversion device for a railway vehicle is arranged on one surface of the heat receiving plate to be a sealed part. Railway vehicle power that is housed and has a heat dissipating fin on the other surface of the heat receiving plate, and has an openable / closable side cowl that covers the opening provided in the sealed portion, and the power unit can be taken in and out of the opening. In the conversion device,
Packing is installed on each of the left and right end surfaces and the back end surface of the heat receiving plate in and out of the heat receiving plate, and these packings are in contact with the upper surfaces of the left and right side plates and the back partition plate of the heat receiving plate in and out of the opening. A packing frame that seals both the left and right sides and the upper side of the box, a box side packing on the left and right partition plates, a side cowl packing on the side cowl, and a packing frame on which the side cowl packing is attached. A side cowl packing receiver for holding the box side packing is installed, and a packing presser for holding the side cowl packing is installed at the end of the heat receiving plate .
In the first aspect of the invention, by closing the side cowl, the packing presser first contacts the side cowl packing, and then the side cowl packing receiver contacts the box side packing. (Invention of claim 2)

この発明によれば、
１）パワーユニットの脱着時に、パワーユニットと装置との間に防水用のシール施工を行なわなくても機器室の防水，防塵性を確保できる。
２）パワーユニットに密閉カバーや側カウルのダクトを要することなく電力変換装置の構造が簡単にでき、パワーユニットや電力変換装置の小型，軽量化を実現できる。
３）パワーユニットの素子やフィルタコンデンサやゲート回路の点検または交換の作業時間を低減できる。
などの利点が得られる。 According to this invention,
1) It is possible to ensure the waterproofness and dustproofness of the equipment room without installing a waterproof seal between the power unit and the device when the power unit is attached or detached.
2) The structure of the power converter can be simplified without requiring a sealing cover or side cowl duct on the power unit, and the power unit and power converter can be made smaller and lighter.
3) The work time for inspection or replacement of power unit elements, filter capacitors, and gate circuits can be reduced.
Advantages such as are obtained.

図１はこの発明の実施の形態を示す部分断面図である。これは、車体中心線の左半分の構成を示すが、右半分が左半分と同様に構成される場合と、異なった構造にされる場合とがある。図２は図１をＡ方向から見た側面図、図３は図１のＢ−Ｂ断面図、図４は図１のＣ部拡大図である。
電力変換装置２は、車体１の側面側に方形の開口部２ａが設けられており、この開口部２ａを開閉可能な側カウル３で覆うことにより、密閉部となる機器室を形成している。側カウル３は図１に示すように上部にヒンジ７０を持ち、車両または車体１の側面方向にヒンジ７０を軸に開閉できるが、ロック金具（以下、ラッチ４とも言う）により完全に閉めた状態では、パワーユニット回路部品５が収納される機器室に、外部から水や塵埃の浸入を防止するように設計されている。 FIG. 1 is a partial sectional view showing an embodiment of the present invention. This shows the configuration of the left half of the vehicle body center line, but there are cases where the right half is configured in the same manner as the left half and different structures. 2 is a side view of FIG. 1 as viewed from the direction A, FIG. 3 is a cross-sectional view taken along the line BB of FIG. 1, and FIG. 4 is an enlarged view of a portion C of FIG.
The power conversion device 2 is provided with a rectangular opening 2a on the side surface of the vehicle body 1, and the opening 2a is covered with a side cowl 3 that can be opened and closed, thereby forming a device room that becomes a sealed portion. . As shown in FIG. 1, the side cowl 3 has a hinge 70 at the top and can be opened and closed around the hinge 70 in the lateral direction of the vehicle or the vehicle body 1, but is completely closed by a lock fitting (hereinafter also referred to as a latch 4). Then, it is designed to prevent water and dust from entering the equipment room in which the power unit circuit component 5 is stored.

受熱板６の一方の面（図１では上面）には、ゲートユニット７、半導体素子，フィルタコンデンサ等のパワーユニット回路部品５が装着され、他方の面（図１では下面）には、放熱フィン８が取り付けられている。パワーユニット３１は、受熱板６とともに車両側面方向３２（黒太矢印）へ脱着可能に構成されている。仕切り板９は、車両側面より見て左側板１０と右側板１１（図２参照）および奥部に設けられ、それぞれの側板に溶接され、シール等で水密化されている。仕切り板９上に受熱板６が後述のパッキン１４２，１４３，１４４を介して載置され、ボルト締めされることによりパワーユニット３１が固定される。   A power unit circuit component 5 such as a gate unit 7, a semiconductor element, and a filter capacitor is mounted on one surface (the upper surface in FIG. 1) of the heat receiving plate 6, and the heat radiation fins 8 are disposed on the other surface (the lower surface in FIG. 1). Is attached. The power unit 31 is configured to be detachable together with the heat receiving plate 6 in the vehicle side surface direction 32 (black thick arrow). The partition plate 9 is provided on the left side plate 10 and the right side plate 11 (see FIG. 2) and the back as viewed from the side of the vehicle, welded to each side plate, and watertight with a seal or the like. The heat receiving plate 6 is placed on the partition plate 9 via packings 142, 143, and 144 described later, and the power unit 31 is fixed by bolting.

防水，防塵（単に防水ともいう）構造について説明する。
水や塵埃が機器室に浸入する経路として、第１は電力変換装置２の車両側面の開口部２ａと側カウル３の隙間であり、これを浸入経路１０１とする。次に、受熱板６の左端面および右端面と仕切り板９の隙間、これを浸入経路１０２とし、受熱板６の奥端面と仕切り板９の隙間、これを浸入経路１０３とする。また、パワーユニットは車両側面から脱着可能に構成されていることから、ラッチ受けフレーム１２と装置の仕切り板９の間には図２に示すように隙間１３（ａ）が開いており、これを浸入経路１０４，１０５とする。 The waterproof and dustproof (simply waterproof) structure will be described.
As a path for water and dust to enter the equipment room, the first is a gap between the opening 2a on the vehicle side surface of the power converter 2 and the side cowl 3, and this is referred to as an intrusion path 101. Next, the clearance between the left end surface and the right end surface of the heat receiving plate 6 and the partition plate 9, which is the intrusion path 102, and the clearance between the back end surface of the heat receiving plate 6 and the partition plate 9, are the intrusion path 103. Since the power unit is configured to be detachable from the side of the vehicle, a gap 13 (a) is opened between the latch receiving frame 12 and the partition plate 9 of the apparatus as shown in FIG. Routes 104 and 105 are assumed.

次に、水や塵埃（水など）の遮断方法を説明する。
側カウル３を閉めた状態では、電力変換装置２の開口部２ａと側カウル３との隙間は、その上辺が側カウル３あるいは電力変換装置２に設置されるパッキン１４１ａ（図１参照）により遮断され、その左右両辺が側カウル３あるいは電力変換装置２に設置されるパッキン１４１ｂ（図２参照）により遮断され、浸入経路１０１は遮断される。右端面パッキン１４２は受熱板６の右端下面に設置され（図３参照）、同様に左端面パッキン１４３は受熱板６の左端下面に設置され、これらパッキンは車両側面より見て右側板１１に設けられた仕切り板９、および左側板１０に設けられた仕切り板９の上面と接触することにより、浸入経路１０２が遮断される。なお、左端面パッキン１４３，左側板および仕切り板は右側と左右対称であるが、図示は省略されている。奥端面パッキン１４４は受熱板６の奥端下面に設置され（図１のパワーユニットの取り外し状態参照）、車両側面より見て奥部に設けられた仕切り板９の上面と接触することにより、浸入経路１０３が遮断される。 Next, a method for blocking water and dust (such as water) will be described.
When the side cowl 3 is closed, the gap between the opening 2a of the power conversion device 2 and the side cowl 3 is blocked by the packing 141a (see FIG. 1) whose upper side is installed on the side cowl 3 or the power conversion device 2. The both left and right sides are blocked by the side cowl 3 or the packing 141b (see FIG. 2) installed in the power converter 2, and the intrusion path 101 is blocked. The right end surface packing 142 is installed on the lower surface of the right end of the heat receiving plate 6 (see FIG. 3). Similarly, the left end surface packing 143 is installed on the lower surface of the left end of the heat receiving plate 6, and these packings are provided on the right plate 11 when viewed from the side of the vehicle. The intrusion path 102 is blocked by contacting the partition plate 9 and the upper surface of the partition plate 9 provided on the left side plate 10. The left end face packing 143, the left side plate, and the partition plate are symmetrical to the right side, but are not shown. The back end surface packing 144 is installed on the bottom surface of the back end of the heat receiving plate 6 (see the removed state of the power unit in FIG. 1), and comes into contact with the top surface of the partition plate 9 provided in the back as viewed from the side of the vehicle. 103 is blocked.

側カウル３には、車両側面より見て左右方向に側カウル３の全幅にわたってパッキン枠１９が形成され、パッキン枠１９内に側カウル３の全幅にわたって側カウルパッキン１７が嵌め込まれている（特に、図４参照）、パワーユニット３１には車両側面より見て左右方向に受熱板６の全幅にわたってパワーユニット側パッキン押え１８を設置している（図２，図４参照）。図４に示すようにパワーユニット側パッキン押え１８は、先端部が車両側面より見て手前側に向けて突出するように受熱板６に取り付けられている。側カウル３を閉めることにより、側カウルパッキン１７にパワーユニット側パッキン押え１８の先端部が接触して電力変換装置２の開口部２ａの下辺が遮断され、浸入経路１０４が遮断される。   A packing frame 19 is formed in the side cowl 3 over the entire width of the side cowl 3 in the left-right direction as viewed from the side of the vehicle, and a side cowl packing 17 is fitted in the packing frame 19 over the entire width of the side cowl 3 (particularly, 4), the power unit side packing presser 18 is installed in the power unit 31 over the entire width of the heat receiving plate 6 in the left-right direction when viewed from the side of the vehicle (see FIGS. 2 and 4). As shown in FIG. 4, the power unit side packing presser 18 is attached to the heat receiving plate 6 so that the front end portion protrudes toward the front side as viewed from the side of the vehicle. By closing the side cowl 3, the tip of the power unit side packing presser 18 comes into contact with the side cowl packing 17, the lower side of the opening 2a of the power conversion device 2 is blocked, and the intrusion path 104 is blocked.

また、側カウルパッキン１７を取り付けるパッキン枠１９には、下側に延びる側カウルパッキン受け１９ａをパッキン枠１９に一体に設け、電力変換装置２の仕切り板９には、左側板１０および右側板１１から箱側パッキン２０を設置している（図２，図４参照）。この箱側パッキン２０は、図２に示すように、その上部に位置するパワーユニット側方向にパッキン押え１８の左右両端の一部と箱側パッキン２０の一部とが左右方向に重なる位置に配置されている。側カウル３を閉めることにより、側カウルパッキン受け１９ａが箱側パッキン２０に接触し、車両側面より見て手前側の受熱板６と仕切り板９の隙間を遮断し、浸入経路１０５が遮断される。
すなわち、側カウル３を閉めることにより、まず側カウルパッキン１７にパワーユニット側パッキン押え１８が接触し、次いで、箱側パッキン２０に側カウルパッキン受け１９ａが接触し、浸入経路１０４および１０５が遮断される。
以上により、パワーユニットに密閉カバーを設けることなく、また、パワーユニットを電力変換装置に取り付ける際にもシール施工を必要とせずに、パワーユニットを固定することができ、側カウルを閉めるだけで機器室の防水，防塵性を確保することができる。 The packing frame 19 for attaching the side cowl packing 17 is integrally provided with a side cowl packing receiver 19a extending downward, and the partition plate 9 of the power converter 2 includes the left side plate 10 and the right side plate 11. The box-side packing 20 is installed (see FIGS. 2 and 4). As shown in FIG. 2, the box-side packing 20 is arranged at a position where a part of the left and right ends of the packing presser 18 and a part of the box-side packing 20 overlap in the left-right direction in the direction of the power unit located at the upper part. ing. By closing the side cowl 3, the side cowl packing receiver 19a comes into contact with the box side packing 20, and the clearance between the heat receiving plate 6 and the partition plate 9 on the near side as viewed from the side of the vehicle is blocked, and the intrusion path 105 is blocked. .
That is, by closing the side cowl 3, the power unit side packing presser 18 first contacts the side cowl packing 17, and then the side cowl packing receiver 19a contacts the box side packing 20, and the intrusion paths 104 and 105 are blocked. .
As described above, the power unit can be fixed without providing a hermetic cover on the power unit, and when the power unit is attached to the power conversion device, without requiring sealing work. , Dustproofness can be ensured.

この発明の実施の形態を示す部分断面図Partial sectional view showing an embodiment of the present invention 図１のＡ方向から見た側面図Side view seen from direction A in FIG. 図１のＢ−Ｂ断面図BB sectional view of FIG. 図１のＣ部拡大図Part C enlarged view of FIG. 交流電車システムを示す電気回路図Electrical circuit diagram showing the AC train system 防水構造の従来例を示す部分断面図Partial sectional view showing a conventional waterproof structure 図６のＤ方向から見た側面図Side view seen from direction D in FIG. 防水構造の別の従来例を示す部分断面図Partial sectional view showing another conventional waterproof structure 図８のＥ方向から見た側面図Side view seen from direction E in FIG.

符号の説明Explanation of symbols

１…車体（車両）、２…電力変換装置、３…側カウル、４…ラッチ、４１…ラッチ受け、５…パワーユニット回路部品、６…受熱板、７…ゲートユニット、８…放熱フィン、９…仕切り板、１０…左側板、１１…右側板、１２…ラッチ受けフレーム、１３…隙間（ａ）、１４１…パッキン、１４２…右端面パッキン、１４３…左端面パッキン、１４４…奥端面パッキン、１７…側カウルパッキン、１８…パワーユニット側パッキン押え、１９…パッキン枠、１９ａ…側カウルパッキン受け、２０…箱側パッキン、３１…パワーユニット、３２…パワーユニット取り外し方向、７０…ヒンジ、１０１〜１０５…浸入経路。   DESCRIPTION OF SYMBOLS 1 ... Car body (vehicle), 2 ... Power converter device, 3 ... Side cowl, 4 ... Latch, 41 ... Latch receptacle, 5 ... Power unit circuit component, 6 ... Heat receiving plate, 7 ... Gate unit, 8 ... Radiation fin, 9 ... Partition plate, 10 ... Left side plate, 11 ... Right side plate, 12 ... Latch receiving frame, 13 ... Gap (a), 141 ... Packing, 142 ... Right end face packing, 143 ... Left end face packing, 144 ... Back end face packing, 17 ... Side cowl packing, 18 ... power unit side packing retainer, 19 ... packing frame, 19a ... side cowl packing receiver, 20 ... box side packing, 31 ... power unit, 32 ... power unit removal direction, 70 ... hinge, 101-105 ... entry path.

Claims (2)

鉄道車両用電力変換装置を構成するコンバータ部とインバータ部とからなるパワーユニット回路部品を受熱板の一方の面に配置して密閉部に収納するとともに、受熱板の他方の面には放熱フィンを配置し、密閉部に設けた開口部を覆う開閉可能な側カウルを有し、前記パワーユニットを開口部から出し入れ可能にした鉄道車両用電力変換装置において、
前記受熱板の出し入れ方向の左右両端面と奥端面にそれぞれパッキンを設置し、これらパッキンは前記受熱板の出し入れ方向の左右両側板と奥部のそれぞれの仕切り板の上面に接触し、前記開口部の左右両辺および上辺をシールするパッキンを設置し、前記左右両仕切り板には箱側パッキンを設置し、前記側カウルには左右方向に側カウルパッキンを設置するとともにこの側カウルパッキンを取り付けるパッキン枠に前記箱側パッキンを押さえる側カウルパッキン受けを設置し、前記受熱板端部には前記側カウルパッキンを押さえるパッキン押えを設置したことを特徴とする鉄道車両用電力変換装置の防水構造。 A power unit circuit component consisting of a converter part and an inverter part constituting a power converter for a railway vehicle is arranged on one surface of the heat receiving plate and housed in a sealed portion, and a heat radiating fin is arranged on the other surface of the heat receiving plate. In addition, in the railway vehicle power converter device having a side cowl that can be opened and closed to cover the opening provided in the sealed portion, the power unit can be taken in and out of the opening.
Packing is installed on each of the left and right end faces and the back end face of the heat receiving plate in and out of the heat receiving plate, and these packings are in contact with the upper surfaces of the left and right side plates and the back partition plate of the heat receiving plate in and out of the opening. A packing frame that seals both the left and right sides and the upper side of the box, a box side packing on the left and right partition plates, a side cowl packing on the side cowl, and a packing frame on which the side cowl packing is attached. A waterproof structure for a railway vehicle power converter, wherein a side cowl packing receiver for holding the box side packing is installed, and a packing presser for holding the side cowl packing is installed at an end of the heat receiving plate . 前記側カウルを閉めることにより、まず、前記側カウルパッキンに前記パッキン押えが接触し、次いで、前記箱側パッキンに側カウルパッキン受けが接触する構成とすることを特徴とする請求項１に記載の鉄道車両用電力変換装置の防水構造。   2. The structure according to claim 1, wherein by closing the side cowl, the packing presser first comes into contact with the side cowl packing, and then the side cowl packing receiver comes into contact with the box side packing. Waterproof structure for power converters for railway vehicles.
JP2005325583A 2005-11-10 2005-11-10 Waterproof structure of power converter for railway vehicles Active JP4715456B2 (en)

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