JP2009106116A - Method for cooling heat of sunshine in power conversion device - Google Patents

Method for cooling heat of sunshine in power conversion device Download PDF

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JP2009106116A
JP2009106116A JP2007277024A JP2007277024A JP2009106116A JP 2009106116 A JP2009106116 A JP 2009106116A JP 2007277024 A JP2007277024 A JP 2007277024A JP 2007277024 A JP2007277024 A JP 2007277024A JP 2009106116 A JP2009106116 A JP 2009106116A
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conversion device
power conversion
flow path
outside air
roof cover
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JP5109578B2 (en
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Kazuhiro Yano
和博 矢野
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Fuji Electric Co Ltd
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Fuji Electric Systems Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for cooling the heat of sunshine in a power conversion device, capable of efficiently preventing the temperature rise due to the heat of sunshine, even in a roof installation power conversion device available even during vehicle stoppage. <P>SOLUTION: The outside air, as shown by the arrow A, which is taken in from an air inlet port 21 provided on a roof cover 13a is branched to the power conversion device 3 and a first flow passage 17; part of the taken-in outside air is circulated through the first flow passage 17, as shown by the arrows c1, c2, c3; and the remainder is circulated through the power conversion device 3, as shown by the arrows a1, a2, a3, a4, thereby cooling a semiconductor element unit 7. The outside air exhausted from a blower housing chamber 9 by a motor-driven blower 10 is branched in two directions; a part of the branched outside air is exhausted to the outside through a second flow passage 18, as shown by the arrows d1, d2, d3, d4; and the remainder is exhausted the outside, while the voltage conversion part 8 of the power conversion device 3 is cooled , as shown by the arrows b1, b2, b3, b4. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、鉄道車両の屋根裏に設置されて車両の駆動用電力を供給する電力変換装置や、車両の空調用、照明用に電力を供給する車両用補助電源としての電力変換装置の日照熱冷却方法に関する。   The present invention relates to a solar power cooling system for a power conversion device that is installed in an attic of a railway vehicle and supplies power for driving the vehicle, and an auxiliary power source for the vehicle that supplies power for air conditioning and lighting of the vehicle. Regarding the method.

従来、鉄道車両の例えば車内空調用、車内照明用、車外照明用、車内放送用等の電力を供給する車両用補助電源としての電力変換装置がある。
この電力変換装置は、半導体ユニット、リアクトル、トランス等で構成されている。そして、これらの構成部分はいずれも稼動時に発熱するので、冷却する必要がある。その冷却方法としては空冷方式が最も安価である。 2. Description of the Related Art Conventionally, there is a power conversion device as an auxiliary power source for a vehicle that supplies electric power for a railway vehicle, for example, for in-vehicle air conditioning, for in-vehicle lighting, for outside lighting, for in-vehicle broadcasting.
This power conversion device includes a semiconductor unit, a reactor, a transformer, and the like. And since all of these components generate heat during operation, it is necessary to cool them. As the cooling method, the air cooling method is the cheapest.

通常、電力変換装置は、外部に放熱しやすいように、更には保守作業がやりやすいように、車両の屋根上に設置される場合が多い。そして、電力変換装置の内部又は外部に電動送風機を備え、電力変換装置の内外に空冷用の外気を強制的に送風して電力変換装置の温度上昇を抑えるようにしている。（例えば、特許文献１及び２参照。）
特開２００４−０８８８４５号公報 特開２００３−０７９１６４号公報 Usually, a power converter is often installed on the roof of a vehicle so that heat can be easily radiated to the outside and maintenance work can be easily performed. Then, an electric blower is provided inside or outside the power conversion device, and the outside air for cooling is forcibly blown in and out of the power conversion device to suppress the temperature rise of the power conversion device. (For example, refer to Patent Documents 1 and 2.)
JP 2004-088845 A Japanese Patent Laid-Open No. 2003-079164

ところで、車両の屋根上に設置される電力変換装置は、内部構成部分が稼動時に発熱するだけでなく、車両の屋根部に降り注ぐ直射日光による温度上昇も考えなくてはならない。このような直射日光による温度上昇の防止には、電力変換装置の最上部や側面に断熱材を貼り付けることが一般的である。   By the way, as for the power converter installed on the roof of a vehicle, not only the internal components generate heat during operation, but also a temperature rise due to direct sunlight falling on the roof of the vehicle must be considered. In order to prevent such a temperature increase due to direct sunlight, it is common to attach a heat insulating material to the uppermost part or side surface of the power converter.

しかしながら、断熱材は高価な部材であり、したがって電力変換装置の設置費用が高くなるという問題がある。また、冷却用外気の通気口には断熱材を取り付けることができないため、十分な断熱効果が得られない。したがって、断熱材の使用は電力変換装置内部の空気温度の上昇防止対策としては効果が少ない。   However, the heat insulating material is an expensive member, and therefore there is a problem that the installation cost of the power conversion device is high. Further, since a heat insulating material cannot be attached to the cooling air vent, a sufficient heat insulating effect cannot be obtained. Therefore, the use of a heat insulating material is less effective as a measure for preventing an increase in air temperature inside the power converter.

また、車両走行時の走行風を取り入れて、直射日光に当たる部分の温度上昇を低減させるように構成されるのが一般的であるが、このような走行風を取り入れて電力変換装置周囲の空気を換気する方式は、車両の停車中でも使用するような空調機や車内照明用の電源を供給する電力変換装置には適していない。   In general, it is configured to reduce the temperature rise in the part exposed to direct sunlight by taking in the driving wind when the vehicle is running, but the air around the power converter is taken in by taking in such driving wind. The ventilation system is not suitable for an air conditioner that is used even when the vehicle is stopped or a power conversion device that supplies power for interior lighting.

また、屋根上設置型の電力変換装置は、豪雪地帯を運行する車両には不向きである。また、豪雪地帯を運行する車両でなくとも、屋根上設置型の電力変換装置は、空気抵抗が強い、見た目に良くないなどのことを考えると、屋根裏に配置するほうが好ましい。   Moreover, the roof-mounted power conversion device is not suitable for vehicles operating in heavy snowfall areas. Moreover, even if it is not a vehicle which operates in a heavy snowy area, it is preferable to arrange | position the roof-mounted power converter device to an attic in view of strong air resistance and bad appearance.

その場合でも、直射日光による屋根部の温度上昇で、屋根の裏面と電力変換装置の上部面との間の空間の温度が上昇するから、この温度上昇を低減させることが必要となる。上述したように、断熱材の使用は屋根部の構成が高価となるから避けなければならない。   Even in that case, since the temperature of the space between the back surface of the roof and the upper surface of the power conversion device rises due to the temperature rise of the roof due to direct sunlight, it is necessary to reduce this temperature rise. As described above, the use of a heat insulating material must be avoided because the construction of the roof becomes expensive.

本発明の課題は、上記従来の実情に鑑み、車両が停車中でも使用する形式の屋根設置型の電力変換装置であっても日照熱による温度上昇を効率よく防止できる電力変換装置の日照熱冷却方法を提供することである。   An object of the present invention is to provide a solar heat cooling method for a power converter that can efficiently prevent a temperature rise due to solar heat even in a roof-mounted power converter of a type that is used even when the vehicle is stopped, in view of the above-described conventional situation. Is to provide.

本発明の電力変換装置の日照熱冷却方法は、鉄道車両等の屋根裏に設置されて車両に電力を供給する電力変換装置であり、該電力変換装置の内部または外部に少なくとも１台以上の通風用電動送風機を有し、該通風用電動送風機により外気を上記電力変換装置内に取入れ且つ外部に放出して上記電力変換装置内の冷却を行い、装置上方を覆う屋根カバーを備えた電力変換装置の日照熱冷却方法において、上記屋根カバーの下方を上記鉄道車両の進行方向に平行する仕切りにより二分して、上記屋根カバーの裏面と上記電力変換装置の上部面との間に第１と第２の二つの流路を形成し、上記電力変換装置の外気取入口近傍において、上記第１の流路の上記屋根カバーに外気を取入れる入風口を設け、上記電力変換装置の外気放出口近傍において、上記第２の流路の上記屋根カバーに上記取入れた外気を外部に放出する排風口を設けて構成される。   The solar heat cooling method for a power conversion device according to the present invention is a power conversion device that is installed in an attic of a railway vehicle or the like and supplies power to the vehicle, and at least one ventilation is provided inside or outside the power conversion device. An electric power blower having an electric blower, and having the roof cover that covers the upper part of the electric power conversion device by taking outside air into the power conversion device and releasing the outside to the outside by the electric blower for ventilation to cool the inside of the power conversion device. In the solar heat cooling method, the lower part of the roof cover is divided into two parts by a partition parallel to the traveling direction of the railway vehicle, and the first and second parts are provided between the back surface of the roof cover and the upper surface of the power converter. Two flow paths are formed, and in the vicinity of the outside air inlet of the power converter, an air inlet is provided for taking outside air into the roof cover of the first channel, and in the vicinity of the outside air outlet of the power converter. It constituted by providing an exhaust air outlet for releasing the intake ambient air into the roof cover of the second flow path to the outside.

上記電力変換装置の日照熱冷却方法において、例えば、上記電動送風機を送風機収容室に収容し、該送風機収容室の負圧発生側に上記第１の流路を通気口又はジャバラ管等で接続して上記第１の流路内を負圧状態とし、上記屋根カバーに設けた上記入風口より取込んだ外気を上記電力変換装置側と上記第１の流路側とに分岐させ、該第１の流路を形成する上記電力変換装置の上部面と上記屋根カバーの裏面との間の空間部を取入外気の一部の入風路とし、上記送風機収容室の加圧発生側に上記第２の流路を通気口又はジャバラ管等で接続して上記第２の流路内を加圧状態とし、上記送風機収容室から排出される上記取入外気を上記電力変換装置側と上記第２の流路側とに分岐させ、該第２の流路を形成する上記電力変換装置の上部面と上記屋根カバーの裏面との間の空間部を排出外気の一部の排風路とするように構成する。   In the solar heat cooling method for the power converter, for example, the electric blower is housed in a blower housing chamber, and the first flow path is connected to the negative pressure generation side of the blower housing chamber by a vent or a bellows pipe or the like. Then, the inside of the first flow path is brought into a negative pressure state, and the outside air taken in from the air inlet provided in the roof cover is branched into the power conversion device side and the first flow path side, A space between the upper surface of the power conversion device forming the flow path and the back surface of the roof cover is defined as a part of the outside air, and the second side is formed on the pressure generation side of the blower housing chamber. Are connected to each other by a vent or a bellows pipe or the like, the inside of the second flow path is brought into a pressurized state, and the intake outside air discharged from the blower housing chamber is supplied to the power conversion device side and the second flow path. The upper surface of the power conversion device that branches off to the flow path side and forms the second flow path and the roof The space between the rear surface of the cover configured to be part of the exhaust air path of the exhaust air.

本発明によれば、電力変換装置の上部面と屋根カバー裏面との間の空間を入風路と排風路に仕切り、電力変換装置の強制風冷用の電動送風機の機能の一部を利用して、入風路と排風路に外気を流通させ、この空間の空気の澱みを防止するので、日照熱による屋根カバーの温度上昇による電力変換装置内の室内空気への熱影響を低減させ、車両が停車していても使用するような電力変換装置にも日照熱による温度上昇を防止する十分な冷却効果が得られる。   According to the present invention, the space between the upper surface of the power conversion device and the back surface of the roof cover is partitioned into the air intake passage and the air exhaust passage, and a part of the function of the electric blower for forced air cooling of the power conversion device is used. Since the outside air is circulated through the inlet and exhaust passages to prevent air stagnation in this space, the influence of heat on the indoor air in the power converter due to the temperature rise of the roof cover due to sunshine heat is reduced. A sufficient cooling effect for preventing a temperature rise due to sunshine heat can be obtained even in a power conversion device that is used even when the vehicle is stopped.

以下、本発明の実施の形態を図面に基づいて詳細に説明する。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

図１は、一実施の形態における日照熱冷却方法を採用した車両屋根裏設置型の電力変換装置を示す断面図である。尚、図１には、車体１と車輪２を簡略に示している。
図１において、電力変換装置３は、車体１の上部の屋根裏に形成されている電力変換装置設置部４に設置され、車体１の両側部上端の支持部５により、電力変換装置設置部４の張り出し部６が載る形で支持されている。 FIG. 1 is a cross-sectional view showing a vehicle attic installation type power conversion device that employs a solar heat cooling method according to an embodiment. In FIG. 1, the vehicle body 1 and the wheels 2 are simply shown.
In FIG. 1, the power conversion device 3 is installed in a power conversion device installation part 4 formed in the attic of the upper part of the vehicle body 1, and the power conversion device installation part 4 is supported by the support parts 5 at the upper ends of both sides of the vehicle body 1. The overhanging portion 6 is supported in such a manner as to be placed thereon.

この電力変換装置３は、車両の停車中も使用される車内空調用、車内照明用、車外照明用、車内放送用等の電力を供給する車両用補助電源である。
この電力変換装置３は、直流電力を交流電力に変換する半導体素子が収容されている半導体素子ユニット７、交流電圧を適宜の電圧に変換するトランスやトランスの力率低下を改善するリアクトルが収容されている電圧変換部８を備えている。 The power conversion device 3 is an auxiliary power source for a vehicle that supplies electric power for in-vehicle air conditioning, in-vehicle lighting, out-of-vehicle lighting, in-vehicle broadcasting, and the like that is used even when the vehicle is stopped.
This power conversion device 3 accommodates a semiconductor element unit 7 in which a semiconductor element that converts DC power into AC power is accommodated, a transformer that converts AC voltage into an appropriate voltage, and a reactor that improves power factor reduction of the transformer. The voltage converter 8 is provided.

また、電力変換装置３には、装置の内部または外部に配置される送風機収容室９に、電動送風機１０を備えている。このような通風用の電動送風機は、装置内部の発熱部を冷却
するために電力変換装置には本質的に少なくとも１台以上は備えられているものである。 Further, the power conversion device 3 includes an electric blower 10 in a blower housing chamber 9 disposed inside or outside the device. Such an electric blower for ventilation is essentially provided with at least one power conversion device in order to cool the heat generating part inside the device.

本例の場合は、１台の電動送風機１０が、半導体素子ユニット７と電圧変換部８に挟まれる位置となる電力変換装置３のほぼ中央部に配置されている。電動送風機１０の回転によって、送風機収容室９には図の右方に負圧が発生し、左方に加圧が発生する。   In the case of this example, one electric blower 10 is disposed at a substantially central portion of the power converter 3 that is located between the semiconductor element unit 7 and the voltage converter 8. Due to the rotation of the electric blower 10, negative pressure is generated in the blower housing chamber 9 on the right side of the drawing, and pressurization is generated on the left side.

そして、送風機収容室９の電動送風機１０は、フィルター付きの外気取入口１１から、外気を図の矢印ａ１、ａ２、ａ３、ａ４で示すように取り込んで、半導体素子ユニット７を冷却し、この取り込んだ外気を図の矢印ｂ１、ｂ２、ｂ３、ｂ４で示すように送り出して、これもフィルター付きの外気放出口１２から外部に放出する。これにより、外気放出路の途中にある電圧変換部８が冷却される。   Then, the electric blower 10 in the blower housing chamber 9 takes in outside air from the outside air inlet 11 with a filter as shown by arrows a1, a2, a3, a4 in the figure, cools the semiconductor element unit 7, and takes in this. The outside air is sent out as indicated by arrows b1, b2, b3, and b4 in the figure, and is also discharged to the outside from the outside air discharge port 12 with a filter. Thereby, the voltage conversion part 8 in the middle of an external air discharge path is cooled.

ところで、本例の電力変換装置３の設置構成は、図に示すように、屋根裏設置型となっており、電力変換装置３の上方は車体１の屋根カバー１３（１３ａ、１３ｂ）によって覆われている。   By the way, as shown in the figure, the installation configuration of the power conversion device 3 of this example is an attic installation type, and the upper portion of the power conversion device 3 is covered by the roof cover 13 (13a, 13b) of the vehicle body 1. Yes.

この屋根カバー１３（１３ａ、１３ｂ）には直射日光１４が降り注ぐ。したがって、このままでは、屋根カバー１３の日照熱で、屋根カバー１３の裏面と、電圧変換部８の上部面１５（１５ａ、１５ｂ）の間の空気の温度が上昇したまま澱んでしまう。   Direct sunlight 14 falls on the roof cover 13 (13a, 13b). Therefore, in this state, due to the sunshine heat of the roof cover 13, the temperature of the air between the back surface of the roof cover 13 and the upper surface 15 (15a, 15b) of the voltage conversion unit 8 is increased and stagnated.

これでは、せっかっく矢印ａ１〜ａ４、矢印ｂ１〜ｂ４のように電力変換装置３の内部を冷却しても、温度が上昇したまま澱んだ空気によって、電力変換装置３の上部面１５（１５ａ、１５ｂ）が熱せられ、内部冷却の効果が低減してしまう。   In this case, even if the inside of the power conversion device 3 is cooled as indicated by the arrows a1 to a4 and the arrows b1 to b4, the upper surface 15 (15a 15b) is heated and the effect of internal cooling is reduced.

そこで、本例では、先ず屋根カバー１３の下方を、鉄道車両の進行方向（図の紙面垂直方向）に平行する仕切り１６により二分して、屋根カバー１３の裏面と電力変換装置３の上部面１５との間に二つの流路を形成する。   Therefore, in this example, the lower side of the roof cover 13 is first divided into two by a partition 16 parallel to the traveling direction of the railway vehicle (the vertical direction in the drawing), and the rear surface of the roof cover 13 and the upper surface 15 of the power conversion device 3. Two flow paths are formed between the two.

すなわち、屋根カバー１３ａと電力変換装置３の上部面１５ａ間に第１の流路１７が形成され、屋根カバー１３ｂと電力変換装置３の上部面１５ｂ間に第２の流路１８が形成される。   That is, the first flow path 17 is formed between the roof cover 13 a and the upper surface 15 a of the power conversion device 3, and the second flow path 18 is formed between the roof cover 13 b and the upper surface 15 b of the power conversion device 3. .

そして電力変換装置３の外気取入口１１の近傍において、第１の流路１７側の屋根カバー１３ａに、外気を取入れる入風口２１を設ける。
また、電力変換装置３の外気放出口１２の近傍において、第２の流路１８側の屋根カバー１３ｂに、上記取入れた外気を外部に放出する排風口２２を設ける。入風口２１及び排風口２２は多数の格子状の孔で構成してもよく、あるいは適宜の形状の、例えば多数の丸孔又は蜂の巣状の孔等で構成してもよい。 In the vicinity of the outside air inlet 11 of the power conversion device 3, an air inlet 21 for taking in outside air is provided in the roof cover 13 a on the first flow path 17 side.
In addition, in the vicinity of the outside air discharge port 12 of the power conversion device 3, a wind exhaust port 22 for discharging the introduced outside air to the outside is provided in the roof cover 13 b on the second flow path 18 side. The air inlet 21 and the air outlet 22 may be configured by a large number of lattice holes, or may be configured by an appropriate shape, for example, a large number of round holes or a honeycomb-shaped hole.

この構成において、送風機収容室９の上述した負圧発生側に、第１の流路１７を通気口又はジャバラ管２３等で接続して第１の流路１７内を負圧状態とする。
これにより、屋根カバー１３ａに設けた入風口２１より矢印Ａで示すように取込んだ外気を、電力変換装置３側（半導体素子ユニット７側）と第１の流路１７側とに分岐させ、第１の流路１７を形成する電力変換装置３の上部面１５ａと屋根カバー１３ａの裏面との間の空間部を、矢印ｃ１、ｃ２、ｃ３で示すように、取入外気の一部の入風路とする。 In this configuration, the first flow path 17 is connected to the above-described negative pressure generation side of the blower housing chamber 9 by a vent or a bellows tube 23 or the like, so that the first flow path 17 is in a negative pressure state.
Thereby, the outside air taken in from the air inlet 21 provided in the roof cover 13a as shown by the arrow A is branched to the power converter 3 side (semiconductor element unit 7 side) and the first flow path 17 side, As shown by arrows c1, c2, and c3, a space between the upper surface 15a of the power conversion device 3 forming the first flow path 17 and the back surface of the roof cover 13a is used to enter a part of the intake outside air. Let it be an air passage.

一方、送風機収容室９の上述した加圧発生側に、第２の流路１８を通気口又はジャバラ管２４等で接続して第２の流路１８内を加圧状態とする。
これにより、送風機収容室９から排出される上記の取入外気を、電力変換装置３側（電圧変換部８側）と第２の流路１８側とに分岐させ、第２の流路１８を形成する電力変換装
置３の上部面１５ｂと屋根カバー１３ｂの裏面との間の空間部を、矢印ｄ１、ｄ２、ｄ３、ｄ４で示すように、排出外気の一部の排風路とし、排風口２２からは、電力変換装置３側と第２の流路１８側から合流した排出外気が矢印Ｂで示すように外部に排出されるようにする。 On the other hand, the second flow path 18 is connected to the above-described pressurization generation side of the blower housing chamber 9 with a vent or a bellows tube 24 or the like, so that the inside of the second flow path 18 is brought into a pressurized state.
Thereby, the intake outside air discharged from the blower housing chamber 9 is branched into the power conversion device 3 side (voltage conversion unit 8 side) and the second flow path 18 side, and the second flow path 18 is As shown by arrows d1, d2, d3, and d4, the space between the upper surface 15b of the power conversion device 3 to be formed and the back surface of the roof cover 13b is used as a part of the exhaust air outside the exhaust air passage. From 22, the discharged outside air joined from the power conversion device 3 side and the second flow path 18 side is discharged to the outside as indicated by an arrow B.

このように本発明の電力変換装置の日照熱冷却方法によれば、電力変換装置の上部面と屋根カバー裏面との間の空間を入風路と排風路に仕切り、電力変換装置の強制風冷用の電動送風機の機能の一部を利用して、入風路と排風路に外気を流通させ、この空間の空気の澱みを防止するので、日照熱による屋根カバーの温度上昇による電力変換装置内の室内空気への熱影響を低減させ、車両が停車していても使用するような電力変換装置にも日照熱による温度上昇を防止する十分な冷却効果が得られる。   As described above, according to the solar heat cooling method for the power conversion device of the present invention, the space between the upper surface of the power conversion device and the back surface of the roof cover is partitioned into the air intake passage and the air exhaust passage, Using some of the functions of the cooling electric blower, the outside air is circulated through the intake and exhaust passages to prevent air stagnation in this space, so power conversion due to roof cover temperature rise due to sunshine heat A sufficient cooling effect can be obtained in a power conversion device that reduces the influence of heat on indoor air in the device and can be used even when the vehicle is stopped, preventing temperature rise due to sunshine heat.

一実施の形態における日照熱冷却方法を採用した車両屋根裏設置型の電力変換装置を示す断面図である。It is sectional drawing which shows the vehicle-attic installation type power converter device which employ | adopted the solar heat cooling method in one embodiment.

符号の説明Explanation of symbols

１ 車体
２ 車輪
３ 電力変換装置
５ 支持部
４ 電力変換装置設置部
６ 張り出し部
７ 半導体素子ユニット
８ 電圧変換部
９ 送風機収容室
１０ 電動送風機
１１ 外気取入口
１２ 外気放出口
１３（１３ａ、１３ｂ） 屋根カバー
１４ 直射日光
１５（１５ａ、１５ｂ） 電圧変換部上部面
１６ 仕切り
１７ 第１の流路
１８ 第２の流路
２１ 入風口
２２ 排風口
２３、２４ 通気口又はジャバラ管 DESCRIPTION OF SYMBOLS 1 Car body 2 Wheel 3 Power converter 5 Support part 4 Power converter installation part 6 Overhang part 7 Semiconductor element unit 8 Voltage converter 9 Blower accommodation chamber 10 Electric blower 11 Outside air inlet 12 Outside air discharge port 13 (13a, 13b) Roof Cover 14 Direct sunlight 15 (15a, 15b) Voltage converter upper surface 16 Partition 17 First flow path 18 Second flow path 21 Air inlet 22 Air outlet 23, 24 Vent or bellows pipe

Claims (2)

鉄道車両等の屋根裏に設置されて車両に電力を供給する電力変換装置であり、該電力変換装置の内部または外部に少なくとも１台以上の通風用電動送風機を有し、該通風用電動送風機により外気を前記電力変換装置内に取入れ且つ外部に放出して前記電力変換装置内の冷却を行い、装置上方を覆う屋根カバーを備えた電力変換装置の日照熱冷却方法において、
前記屋根カバーの下方を前記鉄道車両の進行方向に平行する仕切りにより二分して、前記屋根カバーの裏面と前記電力変換装置の上部面との間に第１と第２の二つの流路を形成し、
前記電力変換装置の外気取入口近傍において、前記第１の流路の前記屋根カバーに外気を取入れる入風口を設け、
前記電力変換装置の外気放出口近傍において、前記第２の流路の前記屋根カバーに前記取入れた外気を外部に放出する排風口を設けた、
ことを特徴とする電力変換装置の日照熱冷却方法。 A power conversion device that is installed in an attic of a railway vehicle or the like and supplies power to the vehicle, and has at least one ventilation electric blower inside or outside the power conversion device, and the outside air is supplied by the ventilation electric blower In the solar power cooling method of the power converter provided with a roof cover that covers the upper part of the power converter.
The lower part of the roof cover is divided into two by a partition parallel to the traveling direction of the railway vehicle, and first and second flow paths are formed between the back surface of the roof cover and the upper surface of the power converter. And
In the vicinity of the outside air inlet of the power converter, an air inlet is provided for taking outside air into the roof cover of the first flow path,
In the vicinity of the outside air discharge port of the power conversion device, an exhaust port for discharging the taken-out outside air to the roof cover of the second flow path is provided.
The solar heat cooling method of the power converter characterized by the above-mentioned. 前記電動送風機を送風機収容室に収容し、
該送風機収容室の負圧発生側に前記第１の流路を通気口又はジャバラ管等で接続して前記第１の流路内を負圧状態とし、
前記屋根カバーに設けた前記入風口より取込んだ外気を前記電力変換装置側と前記第１の流路側とに分岐させ、
該第１の流路を形成する前記電力変換装置の上部面と前記屋根カバーの裏面との間の空間部を取入外気の一部の入風路とし、
前記送風機収容室の加圧発生側に前記第２の流路を通気口又はジャバラ管等で接続して前記第２の流路内を加圧状態とし、
前記送風機収容室から排出される前記取入外気を前記電力変換装置側と前記第２の流路側とに分岐させ、
該第２の流路を形成する前記電力変換装置の上部面と前記屋根カバーの裏面との間の空間部を排出外気の一部の排風路とする、
ことを特徴とする請求項１記載の電力変換装置の日照熱冷却方法。 The electric blower is accommodated in the blower housing chamber,
The first flow path is connected to the negative pressure generating side of the blower housing chamber with a vent or a bellows pipe or the like to bring the inside of the first flow path into a negative pressure state,
The outside air taken in from the air inlet provided in the roof cover is branched to the power conversion device side and the first flow path side,
The space between the upper surface of the power conversion device and the back surface of the roof cover forming the first flow path is used as a part of the incoming air.
The second flow path is connected to the pressure generation side of the blower housing chamber with a vent or a bellows pipe or the like, and the inside of the second flow path is in a pressurized state,
Branching the intake outside air discharged from the blower housing chamber into the power conversion device side and the second flow path side;
The space between the upper surface of the power conversion device and the back surface of the roof cover forming the second flow path is used as a part of the exhaust air.
The solar heat cooling method of the power converter according to claim 1.
JP2007277024A 2007-10-24 2007-10-24 Solar heat cooling method for power converter Active JP5109578B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5805354B1 (en) * 2014-12-26 2015-11-04 三菱電機株式会社 Transformer for vehicle
WO2018020615A1 (en) * 2016-07-27 2018-02-01 三菱電機株式会社 Power conversion device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11112177A (en) * 1997-10-02 1999-04-23 Nippon Columbia Co Ltd Cooling device for electronic equipment
JP2004088845A (en) * 2002-08-23 2004-03-18 Toshiba Corp Forced air-cooling power convertor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11112177A (en) * 1997-10-02 1999-04-23 Nippon Columbia Co Ltd Cooling device for electronic equipment
JP2004088845A (en) * 2002-08-23 2004-03-18 Toshiba Corp Forced air-cooling power convertor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5805354B1 (en) * 2014-12-26 2015-11-04 三菱電機株式会社 Transformer for vehicle
WO2016103439A1 (en) * 2014-12-26 2016-06-30 三菱電機株式会社 Transformer for vehicle
WO2018020615A1 (en) * 2016-07-27 2018-02-01 三菱電機株式会社 Power conversion device
JPWO2018020615A1 (en) * 2016-07-27 2018-12-20 三菱電機株式会社 Power converter

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