JP5409933B2 - Panel for electrical equipment - Google Patents

Panel for electrical equipment Download PDF

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JP5409933B2
JP5409933B2 JP2012547725A JP2012547725A JP5409933B2 JP 5409933 B2 JP5409933 B2 JP 5409933B2 JP 2012547725 A JP2012547725 A JP 2012547725A JP 2012547725 A JP2012547725 A JP 2012547725A JP 5409933 B2 JP5409933 B2 JP 5409933B2
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Prior art keywords
duct
roof
plate
opening
heat
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JPWO2012077374A1 (en
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吉洋 田上
保昭 竹中
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56—Cooling; Ventilation
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20536—Modifications to facilitate cooling, ventilating, or heating for racks or cabinets of standardised dimensions, e.g. electronic racks for aircraft or telecommunication equipment
    • H05K7/206—Air circulating in closed loop within cabinets wherein heat is removed through air-to-air heat-exchanger

Description

本発明は、制御盤や配電盤等の電気機器用盤に関するものであり、特に、放熱性に優れた電気機器用盤に関するものである。   The present invention relates to an electrical equipment panel such as a control panel or a distribution board, and more particularly, to an electrical equipment board having excellent heat dissipation.

近年、電気機器用盤にも小型・大容量化が要求されている。しかし、電気機器用盤を小型・大容量化すると、収納された各種の部品や機器による発熱が大きくなり、盤外表面からの自然放熱では熱が蓄積され、盤内の温度の異常な上昇が発生する。
そのため、小型・大容量化が要求される電気機器用盤は、発熱源である部品や機器から発生する熱を盤外に強制的に放熱する排熱構造を備えている。In recent years, electrical equipment panels are also required to be small and have a large capacity. However, when the electrical equipment panel is made smaller and larger in capacity, the heat generated by the various components and equipment stored increases, and heat is accumulated by natural heat dissipation from the outer surface of the panel, resulting in an abnormal increase in the temperature inside the panel. Occur.
Therefore, electrical equipment panels that are required to have a small size and large capacity include a heat exhaust structure that forcibly dissipates heat generated from components and equipment that are heat sources to the outside of the panel.

従来の排熱構造を備えた電気機器用盤として、電気機器用盤を形成する筐体内部に、壁部により分割して形成した３個の収納部を上下方向に設け、上部収納部に発熱量の大きな機器（第１の発熱要素）を収納し、中央部収納部に上の収納部に収納された機器より発熱が小さい機器（第２の発熱要素）を収納し、下部収納部に発熱がほとんどない機器を収納し、上部収納部に、その上面部と後壁部と下面部とを囲むエアダクトを設けたものがある（例えば、特許文献１参照）。   As an electrical equipment panel having a conventional exhaust heat structure, three housing parts divided by walls are provided in the vertical direction inside the casing forming the electrical equipment board, and the upper housing part generates heat. A large amount of equipment (first heating element) is stored, a device that generates less heat (second heating element) than the equipment stored in the upper storage section is stored in the central storage section, and the lower storage section generates heat. There is a device in which an apparatus having almost no air is stored, and an air duct that surrounds the upper surface portion, the rear wall portion, and the lower surface portion is provided in the upper storage portion (for example, see Patent Document 1).

特開２００１−２４５４０８号公報（第３―４頁、第２図、第３図）Japanese Patent Laid-Open No. 2001-245408 (page 3-4, FIGS. 2 and 3)

特許文献１に記載の従来の排熱構造を備えた電気機器用盤は、エアダクトが、上部収納部の上面部と下面部とに形成された上側ダクトと下側ダクトと、上部収納部の後壁部に形成された後側エアダクトとで構成されている。後側ダクトには第１の発熱要素に取り付けられた放熱フィンが突出しており、上側ダクトと下側ダクトにも放熱フィンが配設されている。
そして、下側ダクトの吸入口から吸い込まれた空気が、下側ダクト、後側ダクト、上側ダクトの順に通過する。各ダクトを通過した空気が、各フィンを介して、第１の発熱要素および上部収納部内の熱を吸収し、上側ダクトの吐出口から吐出されて、排熱するようになっている。In the electric equipment panel having the conventional exhaust heat structure described in Patent Document 1, the air duct includes an upper duct and a lower duct formed on the upper surface portion and the lower surface portion of the upper storage portion, and the rear of the upper storage portion. It is comprised with the rear side air duct formed in the wall part. A radiating fin attached to the first heat generating element protrudes from the rear duct, and radiating fins are also arranged in the upper duct and the lower duct.
And the air sucked from the suction port of the lower duct passes through the lower duct, the rear duct, and the upper duct in this order. The air that has passed through each duct absorbs the heat in the first heat generating element and the upper storage portion via each fin, and is discharged from the discharge port of the upper duct to exhaust heat.

従来の排熱構造を備えた電気機器用盤では、下側ダクトの吸入口から吸い込まれた空気が下側ダクトを通過する時、上部収納部内の熱と第２の発熱要素に基づく中央部収納部内の熱とを吸収して、暖められる。そして、この暖められた空気が、後側ダクトに突出した第１の発熱要素の放熱フィンからの熱を吸収する。
また、後側ダクトを通過した空気は、さらに第２の発熱要素の熱でも暖められているので、上側ダクトでの上部収納部の熱の吸収が、さらに暖められた空気で行われる。
すなわち、従来の排熱構造を備えた電気機器用盤は、エアダクトの、中段部にある後側ダクトでの熱吸収および後段部にある上側ダクトでの熱吸収が、暖められた空気で行われるので、放熱効率が低いとの問題があった。In the electrical equipment panel having a conventional exhaust heat structure, when the air sucked from the suction port of the lower duct passes through the lower duct, the central storage based on the heat in the upper storage part and the second heating element It absorbs the heat inside and is warmed. And this warmed air absorbs the heat from the radiation fins of the first heat generating element protruding into the rear duct.
Further, since the air that has passed through the rear duct is further warmed by the heat of the second heat generating element, the heat of the upper storage portion in the upper duct is absorbed by the warmed air.
That is, in the electrical equipment panel having the conventional exhaust heat structure, heat absorption in the rear duct in the middle stage of the air duct and heat absorption in the upper duct in the rear stage are performed by warmed air. Therefore, there was a problem that heat dissipation efficiency was low.

本発明は、上記のような問題を解決するためになされたものであり、その目的は、盤内に設置された発熱機器が発生する熱と盤内の熱とを盤外に効率的に排熱する排熱構造を備えた、高い放熱能力を有する電気機器用盤を得ることである。   The present invention has been made in order to solve the above-described problems, and an object of the present invention is to efficiently exhaust the heat generated by the heat generating device installed in the panel and the heat in the panel to the outside of the panel. An object of the present invention is to obtain an electrical equipment panel having a high heat dissipation capability, which has a heat exhaust heat structure.

本発明に係わる電気機器用盤は、一方の面に開口を有し、天板と後板と底板と側板とでなる筐体と、筐体の開口部を開閉する扉と、天板上に接して設けられ、且つ上面部と前面部と側面部と後面部とで形成された屋根と、筐体内部に設置された複数の発熱機器とを備えた電気機器用盤であって、筐体には、上端部が天板に接合されるとともに両側端部が側板に接合され、且つ後板と略平行に設けられた設置部と、設置部の下端側に底板と略平行に設けられた床部とでなるベースが配設されており、天板と平行な一方の面を屋根側に露出し、天板と平行な他方の面を筐体の内側に露出し、且つ天板面と垂直な方向の厚さが薄い扁平な熱交換器が天板に配設されており、床部と底板と側板とで形成された床部側ダクトと、設置部と後板と側板とで形成された設置部側ダクトとが連通してなる筐体部ダクトが形成されており、複数の発熱機器が、設置部における筐体の開口と対向する表面に設けられており、屋根と天板とで屋根部ダクトが形成され、屋根部ダクトには、前面部側に外部空気を吸い込む屋根部ダクト吸気口が設けられ、後面部側に屋根部ダクト排気口が設けられ、熱交換器の一方の面における屋根部ダクト吸気口側の端部に、熱交換器方向へ傾斜して屋根部ダクト用ファンが設けられており、ベースと天板と側板と扉とで機器収納部が形成され、機器収納部には、熱交換器の他方の面における設置部方向の端部に、熱交換器方向へ傾斜して機器収納部用ファンが設けられており、床部側ダクトの筐体の開口側に、第１の開口が設けられており、複数の発熱機器の内の、最も発熱が大きい発熱機器が搭載された設置部の部分の裏面にのみ、設置部側ダクト内に突出した放熱フィンが設けられており、設置部側ダクト内における放熱フィンの設置位置より上方側の位置に、筐体部ダクト用ファンが設けられており、筐体部ダクト用ファンが設けられた位置と略同じ高さから天板までの間の後板におけるいずれかの位置に第２の開口が設けられており、第１の開口が外部空気を吸い込む筐体部ダクト吸入口であり、第２の開口が筐体部ダクト排気口であるものである。 An electrical equipment panel according to the present invention has an opening on one surface, a casing made of a top plate, a rear plate, a bottom plate, and a side plate, a door that opens and closes the opening of the housing, and a top plate. An electrical equipment panel comprising a roof formed in contact with and formed by an upper surface portion, a front surface portion, a side surface portion, and a rear surface portion, and a plurality of heat generating devices installed inside the housing, The upper end portion is joined to the top plate and both end portions are joined to the side plate, and the installation portion is provided substantially parallel to the rear plate, and the lower end side of the installation portion is provided substantially parallel to the bottom plate. A base made of a floor is disposed , one surface parallel to the top plate is exposed to the roof side, the other surface parallel to the top plate is exposed to the inside of the housing , and the top plate surface in the direction perpendicular of thin flat heat exchanger is disposed in the top plate, and floor duct formed by the floor and the bottom plate and the side plate, and the installation part and the rear plate and the side plate A casing part duct formed by communicating with the installation part side duct formed is formed, and a plurality of heat generating devices are provided on the surface facing the opening of the casing in the installation part, and the roof and the top plate The roof duct is provided with a roof duct inlet for sucking external air on the front side, a roof duct exhaust on the rear side, and one of the heat exchangers. A roof duct fan is provided at the end of the roof duct air inlet side on the side of the roof inclined to the heat exchanger direction, and an equipment storage section is formed by the base, the top plate, the side plate, and the door, The equipment storage section is provided with a fan for equipment storage section at the end of the heat exchanger on the other side in the direction of the installation section and inclined toward the heat exchanger direction. The first opening is provided on the side, and is the most of the plurality of heat generating devices. Only on the back side of the part of the installation part where heat generating equipment with large heat is mounted, a radiation fin protruding into the installation part side duct is provided, and the position above the installation position of the radiation fin in the installation part side duct In addition, a housing duct fan is provided, and the second opening is provided at any position on the rear plate between the height approximately the same as the position where the housing duct fan is provided and the top plate. The first opening is a housing part duct suction port for sucking outside air , and the second opening is a housing part duct exhaust port.

本発明に係わる電気機器用盤は、一方の面に開口を有し、天板と後板と底板と側板とでなる筐体と、筐体の開口部を開閉する扉と、天板上に接して設けられ、且つ上面部と前面部と側面部と後面部とで形成された屋根と、筐体内部に設置された複数の発熱機器とを備えた電気機器用盤であって、筐体には、上端部が天板に接合されるとともに両側端部が側板に接合され、且つ後板と略平行に設けられた設置部と、設置部の下端側に底板と略平行に設けられた床部とでなるベースが配設されており、天板と平行な一方の面を屋根側に露出し、天板と平行な他方の面を筐体の内側に露出し、且つ天板面と垂直な方向の厚さが薄い扁平な熱交換器が天板に配設されており、床部と底板と側板とで形成された床部側ダクトと、設置部と後板と側板とで形成された設置部側ダクトとが連通してなる筐体部ダクトが形成されており、複数の発熱機器が、設置部における筐体の開口と対向する表面に設けられており、屋根と天板とで屋根部ダクトが形成され、屋根部ダクトには、前面部側に外部空気を吸い込む屋根部ダクト吸気口が設けられ、後面部側に屋根部ダクト排気口が設けられ、熱交換器の一方の面における屋根部ダクト吸気口側の端部に、熱交換器方向へ傾斜して屋根部ダクト用ファンが設けられており、ベースと天板と側板と扉とで機器収納部が形成され、機器収納部には、熱交換器の他方の面における設置部方向の端部に、熱交換器方向へ傾斜して機器収納部用ファンが設けられており、床部側ダクトの筐体の開口側に、第１の開口が設けられており、複数の発熱機器の内の、最も発熱が大きい発熱機器が搭載された設置部の部分の裏面にのみ、設置部側ダクト内に突出した放熱フィンが設けられており、設置部側ダクト内における放熱フィンの設置位置より上方側の位置に、筐体部ダクト用ファンが設けられており、筐体部ダクト用ファンが設けられた位置と略同じ高さから天板までの間の後板におけるいずれかの位置に第２の開口が設けられており、第１の開口が外部空気を吸い込む筐体部ダクト吸入口であり、第２の開口が筐体部ダクト排気口であるものであり、最も発熱が大きい発熱機器の熱と機器収納部内の熱とを、共に暖められていない外部空気に伝達できるとともに、最も発熱が大きい発熱機器が発生する熱と機器収納部内の熱とを別々に電気機器用盤の外に排熱できるので、高い放熱性能を有する。 An electrical equipment panel according to the present invention has an opening on one surface, a casing made of a top plate, a rear plate, a bottom plate, and a side plate, a door that opens and closes the opening of the housing, and a top plate. An electrical equipment panel comprising a roof formed in contact with and formed by an upper surface portion, a front surface portion, a side surface portion, and a rear surface portion, and a plurality of heat generating devices installed inside the housing, The upper end portion is joined to the top plate and both end portions are joined to the side plate, and the installation portion is provided substantially parallel to the rear plate, and the lower end side of the installation portion is provided substantially parallel to the bottom plate. A base made of a floor is disposed , one surface parallel to the top plate is exposed to the roof side, the other surface parallel to the top plate is exposed to the inside of the housing , and the top plate surface in the direction perpendicular of thin flat heat exchanger is disposed in the top plate, and floor duct formed by the floor and the bottom plate and the side plate, and the installation part and the rear plate and the side plate A casing part duct formed by communicating with the installation part side duct formed is formed, and a plurality of heat generating devices are provided on the surface facing the opening of the casing in the installation part, and the roof and the top plate The roof duct is provided with a roof duct inlet for sucking external air on the front side, a roof duct exhaust on the rear side, and one of the heat exchangers. A roof duct fan is provided at the end of the roof duct air inlet side on the side of the roof inclined to the heat exchanger direction, and an equipment storage section is formed by the base, the top plate, the side plate, and the door, The equipment storage section is provided with a fan for equipment storage section at the end of the heat exchanger on the other side in the direction of the installation section and inclined toward the heat exchanger direction. The first opening is provided on the side, and is the most of the plurality of heat generating devices. Only on the back side of the part of the installation part where heat generating equipment with large heat is mounted, a radiation fin protruding into the installation part side duct is provided, and the position above the installation position of the radiation fin in the installation part side duct In addition, a housing duct fan is provided, and the second opening is provided at any position on the rear plate between the height approximately the same as the position where the housing duct fan is provided and the top plate. The first opening is a casing duct inlet for sucking outside air , and the second opening is a casing duct exhaust, and the heat and equipment of the heat generating device that generates the largest amount of heat. The heat in the storage part can be transferred to the outside air that is not warmed, and the heat generated by the heat generating device with the largest heat generation and the heat in the device storage part can be separately exhausted outside the panel for electrical equipment. High heat dissipation performance.

本発明の実施の形態１に係わる電気機器用盤の前面模式図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic front view of an electrical equipment panel according to Embodiment 1 of the present invention. 図１に示した本発明の実施の形態１に係わる電気機器用盤の前面模式図におけるＸ−Ｘ断面の模式図である。It is the schematic diagram of the XX cross section in the front schematic diagram of the board for electrical equipment concerning Embodiment 1 of this invention shown in FIG. 本発明の実施の形態２に係わる電気機器用盤の側面断面模式図である。It is a side surface cross-section schematic diagram of the board for electrical equipment concerning Embodiment 2 of this invention. 本発明の実施の形態３に係わる電気機器用盤の側面断面模式図である。It is a side surface cross-section schematic diagram of the electric equipment panel concerning Embodiment 3 of this invention. 図４に示した本発明の実施の形態３に係わる電気機器用盤の側面断面模式図におけるＹ−Ｙ断面模式図である。It is a YY cross-sectional schematic diagram in the side surface cross-sectional schematic diagram of the electric equipment panel concerning Embodiment 3 of this invention shown in FIG. 本発明の実施の形態４に係わる電気機器用盤の屋根部分の側面断面模式図である。It is a side surface cross-section schematic diagram of the roof part of the board for electrical equipment concerning Embodiment 4 of this invention.

実施の形態１．
図１は、本発明の実施の形態１に係わる電気機器用盤の前面模式図である。
図２は、図１に示した本発明の実施の形態１に係わる電気機器用盤の前面模式図におけるＸ−Ｘ断面模式図である。
図１と図２とに示すように、本実施の形態の電気機器用盤１００は、図２における左側に開口を有し、天板１ａと開口の反対側に設けられた後板１ｂと底板１ｃと２枚の側板１ｄとからなる筐体１と、筐体１の開口を開閉する扉３と、天板１ａに設置された屋根２と、筐体１の内部に設けられ、且つ機器が設置されるベース４とを備えている。Embodiment 1 FIG.
FIG. 1 is a schematic front view of an electrical equipment panel according to Embodiment 1 of the present invention.
2 is a schematic cross-sectional view taken along the line XX in the schematic front view of the electrical equipment panel according to Embodiment 1 of the present invention shown in FIG.
As shown in FIGS. 1 and 2, the electrical equipment panel 100 of the present embodiment has an opening on the left side in FIG. 2, and a back plate 1b and a bottom plate provided on the opposite side of the top plate 1a and the opening. A housing 1 composed of 1c and two side plates 1d, a door 3 for opening and closing the opening of the housing 1, a roof 2 installed on the top plate 1a, an interior of the housing 1, and a device And a base 4 to be installed.

また、ベース４は、後板１ｂと略平行である設置部４ａと、設置部４ａの下方に延在した部分を、筐体１の開口方向に直角に曲げて形成された床部４ｂからなっている。そして、床部４ｂは底板１ｃと略平行に配設されている。
また、ベース４の上方の端部は、天板１ａと接合しており、両側端部の各々は、両方の側板１ｄの対応する各々に接合している。
すなわち、本実施の形態の電気機器用盤１００には、床部４ｂと底板１ｃと側板１ｄとで形成された床部側ダクト５ａと、設置部４ａと後板１ｂと側板１ｄとで形成された設置部側ダクト５ｂとを備えており、床部側ダクト５ａと床部側ダクト５ａに連通する設置部側ダクト５ｂとで筐体部ダクト５が形成されている。The base 4 includes an installation portion 4 a that is substantially parallel to the rear plate 1 b and a floor portion 4 b that is formed by bending a portion extending below the installation portion 4 a at a right angle to the opening direction of the housing 1. ing. The floor 4b is disposed substantially parallel to the bottom plate 1c.
Further, the upper end portion of the base 4 is joined to the top plate 1a, and the both side end portions are joined to the corresponding ones of both side plates 1d.
That is, the electrical equipment panel 100 of the present embodiment is formed of the floor portion side duct 5a formed by the floor portion 4b, the bottom plate 1c, and the side plate 1d, the installation portion 4a, the rear plate 1b, and the side plate 1d. The installation section side duct 5b is provided, and the casing section duct 5 is formed by the floor section side duct 5a and the installation section side duct 5b communicating with the floor section side duct 5a.

また、設置部４ａの筐体１の開口と対向する面（設置部の表面と記す）には、発熱する電気機器である、第１の発熱機器６と第２の発熱機器７、および、ほとんど発熱しない電気機器（非発熱機器と記す）８とが搭載されている。すなわち、第１の発熱機器６と第２の発熱機器７と非発熱機器８とは、ベース４と天板１ａと側板１ｄと扉３とで形成された機器収納部１４内に配設されている。
本実施の形態では、第１の発熱機器６が、発熱が大きい電気機器であり、第２の発熱機器７が、第１の発熱機器６よりかなり発熱が小さい電気機器である。Further, on the surface of the installation portion 4a that faces the opening of the housing 1 (referred to as the surface of the installation portion), the first heat generating device 6 and the second heat generating device 7 that are electric devices that generate heat, and almost all An electric device (hereinafter referred to as a non-heat generating device) 8 that does not generate heat is mounted. That is, the first heat generating device 6, the second heat generating device 7, and the non-heat generating device 8 are disposed in a device storage portion 14 formed by the base 4, the top plate 1 a, the side plate 1 d, and the door 3. Yes.
In the present embodiment, the first heat generating device 6 is an electric device that generates a large amount of heat, and the second heat generating device 7 is an electric device that generates significantly less heat than the first heat generating device 6.

放熱フィン９が、設置部４ａの第１の発熱機器６を搭載した部分における、後板１ｂと対向する面（設置部の裏面と記す）に設けられている。すなわち、放熱フィン９は、設置部側ダクト５ｂ内に突出している。
図２では、設置部４ａの上部に第１の発熱機器６が設けられ、設置部４ａの中部に第２の発熱機器７が設けられ、設置部４ａの下部に非発熱機器８が設けられているが、各機器は、設置部４ａの表面のどの位置に設けられていても良い。The radiating fins 9 are provided on the surface (referred to as the back surface of the installation portion) facing the rear plate 1b in the portion where the first heat generating device 6 of the installation portion 4a is mounted. That is, the radiation fins 9 protrude into the installation part side duct 5b.
In FIG. 2, the first heat generating device 6 is provided at the upper part of the installation part 4a, the second heat generating device 7 is provided at the middle part of the installation part 4a, and the non-heat generating device 8 is provided at the lower part of the installation part 4a. However, each device may be provided at any position on the surface of the installation portion 4a.

筐体部ダクト用ファン１１は、設置部側ダクト５ｂ内における放熱フィン９の上方側端部の近傍で傾斜して設けられているが、放熱フィン９の設置位置より上方側に設けられていれば良い。
特に、筐体部ダクト用ファン１１を、放熱フィン９の上方側端部の近傍に設けると、排熱効率が向上する。The casing duct fan 11 is provided in the vicinity of the upper end of the radiating fin 9 in the installation part side duct 5b, but is provided above the radiating fin 9 installation position. It ’s fine.
In particular, when the casing duct fan 11 is provided in the vicinity of the upper end of the heat dissipating fin 9, the heat exhaust efficiency is improved.

第２の開口１２は、筐体部ダクト用ファン１１が設けられた位置と略同じ高さ位置の後板１ｂに設けられているが、筐体部ダクト用ファン１１が設けられた位置より上部側の位置の後板１ｂに設けても良い。すなわち、第２の開口１２は、筐体部ダクト用ファン１１が設けられた位置と略同じ高さから天板１ａまでの間の後板１ｂにおけるいずれかの位置に設ければ良い。この第２の開口１２は筐体部ダクト排気口となっている。
特に、第２の開口１２を、筐体部ダクト用ファン１１が設けられた位置と略同じ高さ位置の後板１ｂに設けると、暖まった空気を排出するまでの流路が短くなり、排熱効率がさらに向上する。The second opening 12 is provided in the rear plate 1b at a position substantially the same height as the position where the housing part duct fan 11 is provided, but above the position where the housing part duct fan 11 is provided. You may provide in the rear board 1b of the position of the side. In other words, the second opening 12 may be provided at any position on the rear plate 1b between substantially the same height as the position where the casing duct fan 11 is provided and the top plate 1a. The second opening 12 serves as a casing duct exhaust port.
In particular, if the second opening 12 is provided in the rear plate 1b at a height substantially the same as the position where the housing duct fan 11 is provided, the flow path until the warm air is discharged becomes shorter, and the exhaust is discharged. Thermal efficiency is further improved.

また、第２の開口１２を筐体部ダクト用ファン１１が設けられた位置と略同じ高さ位置の後板１ｂに設けた場合、筐体部ダクト用ファン１１は、傾斜して設けられているが、第２の開口１２を筐体部ダクト用ファン１１が設けられた位置より上部側の位置の後板１ｂに設けた場合、筐体部ダクト用ファン１１は、ファン面が筐体部ダクト５の通風方向に対して略垂直になるように設置される。
第１の開口１０が、床部側ダクト５ａの筐体１の開口側に設けられており、これが筐体部ダクト吸入口となっている。Further, when the second opening 12 is provided on the rear plate 1b at a position substantially the same height as the position at which the casing duct fan 11 is provided, the casing duct fan 11 is provided to be inclined. However, when the second opening 12 is provided on the rear plate 1b at a position higher than the position where the casing duct fan 11 is provided, the casing duct fan 11 has a fan surface on the casing section. It is installed so as to be substantially perpendicular to the ventilation direction of the duct 5.
The 1st opening 10 is provided in the opening side of the housing | casing 1 of the floor part side duct 5a, and this is a housing | casing part duct inlet.

本実施の形態では、筐体部ダクト用ファン１１を傾斜して設置する場合、設置部４ａ側が後板１ｂ側より高くなるように傾斜して設けられている。
また、筐体部ダクト用ファン１１は、第２の開口１２に、直接取り付けても良い。
フード１３が第２の開口１２を覆うように設置されており、フード１３は、第２の開口１２と対向する面と下面とが開口している。
本実施の形態では、第２の開口１２の部分にフード１３を設けているが、フード１３は設けなくても良い。In the present embodiment, when the casing duct fan 11 is installed with an inclination, the installation section 4a side is provided so as to be higher than the rear plate 1b side.
The casing duct fan 11 may be directly attached to the second opening 12.
The hood 13 is installed so as to cover the second opening 12, and the hood 13 has a surface facing the second opening 12 and a lower surface.
In the present embodiment, the hood 13 is provided in the second opening 12, but the hood 13 may not be provided.

本実施の形態では、屋根２は、板状の、上面部２ａと前面部２ｂと２個の側面部２ｃと後面部２ｄで形成されており、前面部２ｂから後面部２ｄまでの長さが、側板１ｄの幅より長く、前面部２ｂが扉３の位置より前方に突出しており、後面部２ｄが後板１ｂの位置より後方に突出している。
そして、屋根２と天板１ａとで囲まれた部分が、屋根部ダクト２５となっており、屋根部ダクト２５における前面部２ｂ側の突出部下面の開口が、屋根部ダクト吸気口２０であり、屋根部ダクト２５における後面部２ｄ側の突出部下面の開口が屋根部ダクト排気口２２となっている。In the present embodiment, the roof 2 is formed of a plate-like upper surface portion 2a, front surface portion 2b, two side surface portions 2c, and rear surface portion 2d, and the length from the front surface portion 2b to the rear surface portion 2d is long. The front surface 2b protrudes forward from the position of the door 3 and the rear surface 2d protrudes rearward from the position of the rear plate 1b.
And the part enclosed by the roof 2 and the top plate 1a becomes the roof part duct 25, and the opening of the protrusion part lower surface by the side of the front part 2b in the roof part duct 25 is the roof part duct inlet port 20 The opening on the lower surface of the protruding portion on the rear surface portion 2d side of the roof portion duct 25 is a roof portion duct exhaust port 22.

また、熱交換器１５が天板１ａに設置されており、熱交換器１５の一方の面が屋根部ダクト２５に露出しており、熱交換器１５の他方の面は筐体１内の機器収納部１４に露出している。
また、屋根部ダクト２５内において、屋根部ダクト用ファン２１が、屋根部ダクトの前面部２ｂ方向の熱交換器１５の端部（熱交換器の一端部と記す）に、熱交換器１５方向へ傾斜するように設けられている。この傾斜角αは、３０〜６０度の範囲が好ましく、熱交換器１５から屋根部ダクト２５内を流れる空気への熱伝達の面から、略４５度が最も好ましい。In addition, the heat exchanger 15 is installed on the top plate 1 a, one surface of the heat exchanger 15 is exposed to the roof duct 25, and the other surface of the heat exchanger 15 is a device in the housing 1. It is exposed to the storage unit 14.
Further, in the roof duct 25, the roof duct fan 21 is arranged at the end of the heat exchanger 15 in the direction of the front face 2b of the roof duct (referred to as one end of the heat exchanger) in the direction of the heat exchanger 15. It is provided to incline toward. The inclination angle α is preferably in the range of 30 to 60 degrees, and is most preferably about 45 degrees in terms of heat transfer from the heat exchanger 15 to the air flowing through the roof duct 25.

本実施の形態では、屋根部ダクト用ファン２１は、熱交換器１５の一端部に設けられているが、屋根部ダクト吸気口２０から屋根部ダクト排気口２２へ空気を流し、屋根部ダクト２５内の空気と熱交換器１５との熱交換を妨害しない位置なら、屋根部ダクト２５内のどこに設けても良い。   In the present embodiment, the roof duct fan 21 is provided at one end of the heat exchanger 15, but air flows from the roof duct inlet 20 to the roof duct exhaust 22, and the roof duct 25. If it is a position that does not hinder heat exchange between the air inside and the heat exchanger 15, it may be provided anywhere in the roof duct 25.

本実施の形態では、機器収納部１４内において、機器収納部用ファン１６が、設置部４ａ方向の熱交換器１５の端部（熱交換器の他端部と記す）に、熱交換器１５方向へ傾斜するように設けられている。この傾斜角βは、３０〜６０度の範囲が好ましく、機器収納部１４内の空気から熱交換器１５への熱伝達の面から、略４５度が最も好ましい。   In the present embodiment, in the equipment storage section 14, the equipment storage section fan 16 is connected to the end of the heat exchanger 15 in the direction of the installation section 4a (referred to as the other end of the heat exchanger). It is provided so as to be inclined in the direction. The inclination angle β is preferably in the range of 30 to 60 degrees, and is most preferably about 45 degrees from the viewpoint of heat transfer from the air in the device storage section 14 to the heat exchanger 15.

次に、本実施の形態の電気機器用盤１００の排熱機構を説明する。
本実施の形態の電気機器用盤１００では、筐体部ダクト用ファン１１により、筐体部ダクト吸気口である第１の開口１０から外部の空気を吸い込み、吸い込まれた空気は、矢印Ａで示されるように床部側ダクト５ａから設置部側ダクト５ｂへと筐体部ダクト５を流れる。空気が設置部側ダクト５ｂを流れる時に、放熱フィン９を介して発熱が大きい第１の発熱機器６の熱を吸収する。そして、第１の発熱機器６の熱を吸収して暖まった空気が、筐体部ダクト排気口である第２の開口１２から外部に排出される。Next, the exhaust heat mechanism of the electrical equipment panel 100 of the present embodiment will be described.
In the electrical equipment panel 100 according to the present embodiment, external air is sucked from the first opening 10 which is a housing part duct intake port by the housing part duct fan 11, and the sucked air is indicated by an arrow A. As shown, the casing part duct 5 flows from the floor part side duct 5a to the installation part side duct 5b. When the air flows through the installation portion side duct 5b, the heat of the first heat generating device 6 that generates a large amount of heat is absorbed through the radiation fins 9. And the air which absorbed the heat | fever of the 1st heat generating apparatus 6 and was warmed is discharged | emitted outside from the 2nd opening 12 which is a housing | casing part duct exhaust port.

すなわち、本実施の形態の電気機器用盤１００では、第１の発熱機器の排熱は、第１の発熱機器６の熱が、放熱フィン９を介して筐体部ダクト５を流れる空気に伝達され、筐体部ダクト５を流れる第１の発熱機器６の熱が伝達された空気が、筐体部ダクト排気口である第２の開口１２から外部に排出されることにより行われる。   That is, in the electrical equipment panel 100 according to the present embodiment, the exhaust heat of the first heat generating device is transferred from the heat of the first heat generating device 6 to the air flowing through the casing duct 5 via the radiation fins 9. The air to which the heat of the first heat generating device 6 flowing through the casing duct 5 is transmitted is discharged to the outside through the second opening 12 that is the casing duct exhaust port.

また、屋根部ダクト用ファン２１により、屋根部ダクト吸気口２０から外部の空気が吸い込まれる。吸い込まれた空気は、矢印Ｂで示されるように、まず、熱交換器１５に吹きつけられ、機器収納部１４内の空気の熱で暖められた熱交換器１５の熱を吸収する。そして、熱交換器１５の熱により暖められた空気は、屋根部ダクト２５を流れ、屋根部ダクト排気口２２から外部に排出される。   Also, outside air is sucked from the roof duct air inlet 20 by the roof duct fan 21. As shown by the arrow B, the sucked air is first blown to the heat exchanger 15 and absorbs the heat of the heat exchanger 15 heated by the heat of the air in the device storage unit 14. The air heated by the heat of the heat exchanger 15 flows through the roof duct 25 and is discharged to the outside from the roof duct exhaust port 22.

また、機器収納部用ファン１６により、第１の発熱機器６および第２の発熱機器７によって暖められた機器収納部１４内の空気が、熱交換器１５に吹きつけられ、機器収納部１４内の熱が熱交換器１５に伝達される。そして、熱交換器１５に熱を伝達して冷却された空気は、矢印Ｃで示されるように、機器収納部１４の下部に行き、第２の発熱機器７および第１の発熱機器６を冷やし、暖められた空気は、機器収納部用ファン１６により、再び熱交換器１５に吹きつけられる。   Further, the air in the device storage section 14 heated by the first heat generating device 6 and the second heat generating device 7 is blown to the heat exchanger 15 by the device storage section fan 16, and the inside of the device storage section 14. Is transferred to the heat exchanger 15. Then, the air cooled by transferring heat to the heat exchanger 15 goes to the lower part of the device storage section 14 as indicated by the arrow C, and cools the second heat generating device 7 and the first heat generating device 6. The warmed air is blown again onto the heat exchanger 15 by the equipment housing fan 16.

すなわち、本実施の形態の電気機器用盤１００では、機器収納部１４の排熱は、機器収納部１４の熱が、熱交換器１５を介して屋根部ダクト２５を流れる空気に伝達され、機器収納部１４の熱が伝達された空気が、屋根部ダクト排気口２２から外部に排出されることにより行われる。   That is, in the electrical equipment panel 100 according to the present embodiment, the heat exhausted from the equipment storage section 14 is transmitted to the air flowing through the roof duct 25 via the heat exchanger 15 as the heat of the equipment storage section 14. The air to which the heat of the storage part 14 is transmitted is performed by being discharged from the roof part duct exhaust port 22 to the outside.

本実施の形態の電気機器用盤１００は、筐体部ダクト５と屋根部ダクト２５とを備え、筐体部ダクト５を流れる空気で発熱が大きい第１の発熱機器６の熱を排熱し、屋根部ダクト２５を流れる空気で機器収納部１４内の熱を排熱する排熱構造を備えている。
すなわち、本実施の形態の電気機器用盤１００では、排熱構造が、第１の発熱機器６の熱と機器収納部１４内の熱とを、共に暖められていない外部空気に伝達できるとともに、発熱機器が発生する熱と電気機器用盤内の熱とを別々に盤外に排熱できるので、本実施の形態の電気機器用盤１００は、高い放熱性能を有する。The electrical equipment panel 100 according to the present embodiment includes a housing part duct 5 and a roof part duct 25, and exhausts heat of the first heat generating equipment 6 that generates a large amount of heat with air flowing through the housing part duct 5. An exhaust heat structure is provided for exhausting the heat in the device storage section 14 with the air flowing through the roof duct 25.
That is, in the electrical equipment panel 100 of the present embodiment, the exhaust heat structure can transmit the heat of the first heat generating device 6 and the heat in the device storage portion 14 to the external air that is not warmed, Since the heat generated by the heat generating device and the heat in the electrical device panel can be separately exhausted outside the panel, the electrical device panel 100 of the present embodiment has high heat dissipation performance.

実施の形態２．
図３は、本発明の実施の形態２に係わる電気機器用盤の側面断面模式図である。
図３に示すように、本実施の形態の電気機器用盤２００は、第２の開口１２を筐体部ダクト５の吸気口として、外部の空気を吸い込み、第１の開口１０を筐体部ダクト５の排気口として、外部に空気を排出するようにした以外、実施の形態１の電気機器用盤１００と同様である。
本実施の形態の電気機器用盤２００は、実施の形態１の電気機器用盤１００と同様な作用効果を有するとともに、筐体部ダクト５の吸気口の位置が高いので、吸気口からの砂や煤塵の吸い込みが少なくなり、放熱フィン９の目詰まりが防止でき、放熱フィン９の放熱能力の低下を抑制できる。Embodiment 2. FIG.
FIG. 3 is a schematic side sectional view of an electrical equipment panel according to Embodiment 2 of the present invention.
As shown in FIG. 3, the electrical equipment panel 200 according to the present embodiment sucks in external air using the second opening 12 as an inlet of the casing duct 5, and uses the first opening 10 as the casing section. The electrical outlet panel 100 is the same as the electrical equipment panel 100 except that air is discharged to the outside as an exhaust port of the duct 5.
The electrical device panel 200 according to the present embodiment has the same effects as the electrical device panel 100 according to the first embodiment, and the position of the intake port of the casing duct 5 is high. Inhalation of dust and dust can be reduced, the clogging of the radiation fins 9 can be prevented, and a decrease in the radiation capacity of the radiation fins 9 can be suppressed.

実施の形態３．
図４は、本発明の実施の形態３に係わる電気機器用盤の側面断面模式図である。
図５は、図４に示した本発明の実施の形態３に係わる電気機器用盤の側面断面模式図におけるＹ−Ｙ断面模式図である。
図４と図５とに示すように、本実施の形態の電気機器用盤３００は、実施の形態１の電気機器用盤１００と同様な、筐体１と屋根２と扉３とを備えている。
本実施の形態では、筐体１に設けられた、ベース４と床部側ダクト５ａと第１の開口１０とは、実施の形態１と同じであり、第１の開口１０が筐体部ダクト吸入口となっている。Embodiment 3 FIG.
FIG. 4 is a schematic side sectional view of an electrical equipment panel according to Embodiment 3 of the present invention.
FIG. 5 is a YY cross-sectional schematic diagram in the side cross-sectional schematic diagram of the electric equipment panel according to Embodiment 3 of the present invention shown in FIG. 4.
As shown in FIGS. 4 and 5, the electrical equipment panel 300 according to the present embodiment includes a casing 1, a roof 2, and a door 3, similar to the electrical equipment panel 100 according to the first embodiment. Yes.
In the present embodiment, the base 4, the floor portion side duct 5 a and the first opening 10 provided in the housing 1 are the same as those in the first embodiment, and the first opening 10 is the housing portion duct. It is an inlet.

また、筐体１内に形成された、機器収納部１４および機器収納部用ファン１６も、実施の形態１と同じである。
また、屋根２に設けられた、屋根部ダクト２５と屋根部ダクト吸気口２０と屋根部ダクト排気口２２と屋根部ダクト用ファン２１、並びに、天板１ａに設けられた熱交換器１５も、実施の形態１と同じである。The device storage section 14 and the device storage section fan 16 formed in the housing 1 are the same as those in the first embodiment.
Further, the roof duct 25, the roof duct inlet 20, the roof duct exhaust 22, the roof duct fan 21, and the heat exchanger 15 provided on the top plate 1 a provided on the roof 2 are also provided. The same as in the first embodiment.

しかし、本実施の形態の電気機器用盤３００では、は、第１の発熱機器６と第２の発熱機器７と第３の発熱機器１７とが、設置部４ａの表面に搭載されている。そして、設置部４ａにおける、第１の発熱機器６が搭載された部分の裏面に第１の放熱フィン１９が設けられ、第２の発熱機器７が搭載された部分の裏面に第２の放熱フィン２９が設けられ、第３の発熱機器１７が搭載された部分の裏面に第３の放熱フィン３９が設けられている。そして、第１の放熱フィン１９と第２の放熱フィン２９と第３の放熱フィン３９とが、設置部側ダクト５ｂ内に突出している。   However, in the electrical equipment panel 300 of the present embodiment, the first heat generating device 6, the second heat generating device 7, and the third heat generating device 17 are mounted on the surface of the installation portion 4a. And in the installation part 4a, the 1st heat radiation fin 19 is provided in the back surface of the part in which the 1st heat generating apparatus 6 is mounted, and the 2nd heat radiation fin is provided in the back surface of the part in which the 2nd heat generating apparatus 7 is mounted. 29 and a third radiation fin 39 is provided on the back surface of the portion where the third heat generating device 17 is mounted. And the 1st radiation fin 19, the 2nd radiation fin 29, and the 3rd radiation fin 39 protrude in the installation part side duct 5b.

また、図４と図５とに示すように、第１の放熱フィン１９と第２の放熱フィン２９と第４の放熱フィン３９との各放熱フィンは、側壁３３と上壁３４と設置部４ａと後板１ｂとで形成されたサブダクトで覆われている。そして、各サブダクトは、下側が開口している。
すなわち、第１の放熱フィン１９は第１のサブダクト４１で覆われており、第２の放熱フィン２９は第２のサブダクト５１で覆われており、第３の放熱フィン３９は第３のサブダクト６１で覆われている。Further, as shown in FIGS. 4 and 5, the radiation fins of the first radiation fin 19, the second radiation fin 29, and the fourth radiation fin 39 include a side wall 33, an upper wall 34, and an installation portion 4a. And a sub duct formed by the rear plate 1b. And each subduct has the lower side opened.
That is, the first radiating fin 19 is covered with the first sub duct 41, the second radiating fin 29 is covered with the second sub duct 51, and the third radiating fin 39 is the third sub duct 61. Covered with.

また、第１のサブダクト４１内における第１の放熱フィン１９の上端部近傍に、第１のサブダクト用ファン４２が設けられている。第２のサブダクト５１内における第２の放熱フィン２９の上端部近傍に、第２のサブダクト用ファン５２が設けられている。第３のサブダクト６１内における第３の放熱フィン３９の上端部近傍に、第３のサブダクト用ファン６２が設けられている。
そして、第１のサブダクト用ファン４２と第２のサブダクト用ファン５２と第３のサブダクト用ファン６２とは、実施の形態１の筐体部ダクト用ファン１１と同様な傾斜で設置されている。A first sub duct fan 42 is provided in the first sub duct 41 in the vicinity of the upper end portion of the first radiating fin 19. A second sub duct fan 52 is provided in the second sub duct 51 in the vicinity of the upper end portion of the second radiating fin 29. A third sub duct fan 62 is provided in the third sub duct 61 in the vicinity of the upper end portion of the third radiating fin 39.
The first sub duct fan 42, the second sub duct fan 52, and the third sub duct fan 62 are installed at the same inclination as that of the casing duct fan 11 of the first embodiment.

第１のサブダクト排気口４３が、第１のサブダクト用ファン４２が設けられた位置と略同じ高さ位置の後板１ｂに設けられている。第２のサブダクト排気口５３が、第２のサブダクト用ファン５２が設けられた位置と略同じ高さ位置の後板１ｂに設けられている。第３のサブダクト排気口６３が、第３のサブダクト用ファン６２が設けられた位置と略同じ高さ位置の後板１ｂに設けられている。
また、実施の形態１と同様なフード１３が、第１のサブダクト排気口４３と第２のサブダクト排気口５３と第３のサブダクト排気口６３との各々を、覆うように設置されている。The first sub duct exhaust port 43 is provided in the rear plate 1b at a height position substantially the same as the position where the first sub duct fan 42 is provided. The second sub duct exhaust port 53 is provided in the rear plate 1b at a height position substantially the same as the position where the second sub duct fan 52 is provided. The third sub duct exhaust port 63 is provided in the rear plate 1b at a height position substantially the same as the position where the third sub duct fan 62 is provided.
A hood 13 similar to that of the first embodiment is installed so as to cover each of the first sub-duct exhaust port 43, the second sub-duct exhaust port 53, and the third sub-duct exhaust port 63.

本実施の形態では、第１のサブダクト用ファン４２と第２のサブダクト用ファン５２と第３のサブダクト用ファン６２とは、各サブダクト内で傾斜させて設置されているが、第１のサブダクト排気口４３と第２のサブダクト排気口５３と第３のサブダクト排気口６３との各々に取り付けられても良い。
また、フード１３が、第１のサブダクト排気口４３と第２のサブダクト排気口５３と第３のサブダクト排気口６３との各々を、覆うように設置されているが、各フード１３は設けられなくても良い。In the present embodiment, the first sub-duct fan 42, the second sub-duct fan 52, and the third sub-duct fan 62 are installed to be inclined in each sub-duct. You may attach to each of the opening | mouth 43, the 2nd subduct exhaust port 53, and the 3rd subduct exhaust port 63. FIG.
The hood 13 is installed so as to cover each of the first sub-duct exhaust port 43, the second sub-duct exhaust port 53, and the third sub-duct exhaust port 63, but each hood 13 is not provided. May be.

次に、本実施の形態の電気機器用盤３００の排熱機構を説明する。
本実施の形態の電気機器用盤３００における機器収納部１４内の熱の排熱は、実施の形態１の電気機器用盤１００と同様である。
第１の発熱機器６と第２の発熱機器７と第３の発熱機器１７との熱の排熱は、以下のようにして行われる。
まず、図４と図５とに示すように、第１のサブダクト用ファン４２と第２のサブダクト用ファン５２と第３のサブダクト用ファン６２とにより、筐体部ダクト吸気口である第１の開口１０から吸い込まれた空気は、筐体部ダクト５を流れる。吸い込まれた空気の流動方向は、矢印Ａで示されるように床部側ダクト５ａから設置部側ダクト５ｂの方向である。Next, the exhaust heat mechanism of the electrical equipment panel 300 according to the present embodiment will be described.
The heat exhaustion of the heat in the device storage section 14 in the electrical device panel 300 of the present embodiment is the same as that of the electrical device panel 100 of the first embodiment.
The heat exhaustion of the first heat generating device 6, the second heat generating device 7, and the third heat generating device 17 is performed as follows.
First, as shown in FIG. 4 and FIG. 5, the first sub-duct fan 42, the second sub-duct fan 52, and the third sub-duct fan 62 are used to form a first duct that is a housing portion duct intake port. Air sucked from the opening 10 flows through the casing duct 5. The flow direction of the sucked air is the direction from the floor portion side duct 5a to the installation portion side duct 5b as indicated by an arrow A.

設置部側ダクト５ｂに入った空気の一部は、第３のサブダクト用ファン６２の作用により、第３のサブダクト６１に、その開口から流れ込み、第３の放熱フィン３９を介して第３の発熱機器１７の熱を吸収する。そして、第３の発熱機器１７の熱を吸収して暖まった空気が、第３のサブダクト排気口６３から外部に排出される。つまり、第３の発熱機器１７の熱は、第３のサブダクト６１を流れる空気によって排熱される。   Part of the air that has entered the installation portion side duct 5 b flows into the third sub duct 61 from the opening due to the action of the third sub duct fan 62, and the third heat generation via the third radiating fins 39. Absorbs heat from the device 17. Then, the air heated by absorbing the heat of the third heat generating device 17 is discharged to the outside from the third sub duct exhaust port 63. That is, the heat of the third heat generating device 17 is exhausted by the air flowing through the third sub duct 61.

また、設置部側ダクト５ｂに入った空気における、第３のサブダクト６１の側壁３３と側板１ｄとの間を通過した空気の一部は、第２のサブダクト用ファン５２の作用により、第２のサブダクト５１に、その開口から流れ込む。第２のサブダクト５１に流入した空気が、第２の放熱フィン２９を介して第２の発熱機器７の熱を吸収する。そして、第２の発熱機器７の熱を吸収して暖まった空気が、第２のサブダクト排気口５３から外部に排出される。
つまり、第２の発熱機器７の熱は、第２のサブダクト５１を流れる空気によって排熱される。In addition, a part of the air that has passed between the side wall 33 of the third sub-duct 61 and the side plate 1 d in the air that has entered the installation-side duct 5 b is caused by the action of the second sub-duct fan 52. It flows into the sub duct 51 from the opening. The air flowing into the second sub duct 51 absorbs the heat of the second heat generating device 7 through the second heat radiation fin 29. Then, the air that has been warmed by absorbing heat from the second heat generating device 7 is discharged to the outside from the second sub-duct exhaust port 53.
That is, the heat of the second heat generating device 7 is exhausted by the air flowing through the second sub duct 51.

また、設置部側ダクト５ｂに入った空気における、第２のサブダクト５１の側壁３３と側板１ｄとの間を通過した空気は、第１のサブダクト用ファン４２の作用により、第１のサブダクト４１に、その開口から流れ込む。第１のサブダクト４１に流入した空気が、第１の放熱フィン１９を介して第１の発熱機器６の熱を吸収する。そして、第１の発熱機器６の熱を吸収して暖まった空気が、第１のサブダクト排気口４３から外部に排出される。
つまり、第１の発熱機器６の熱は、第１のサブダクト４１を流れる空気によって排熱される。Further, the air that has entered the installation portion side duct 5b and has passed between the side wall 33 of the second sub duct 51 and the side plate 1d is transferred to the first sub duct 41 by the action of the first sub duct fan 42. , Flows from its opening. The air that has flowed into the first sub duct 41 absorbs the heat of the first heat generating device 6 through the first heat radiating fins 19. Then, the air that has been warmed by absorbing heat from the first heat generating device 6 is discharged to the outside from the first sub-duct exhaust port 43.
That is, the heat of the first heat generating device 6 is exhausted by the air flowing through the first sub duct 41.

本実施の形態の電気機器用盤３００の排熱構造は、設置部側ダクト内に設置された複数のサブダクトと、各サブダクト内に各発熱機器に対応して配設された放熱フィンと、各サブダクト内に空気を取り入れるサブダクト用ファンと、各サブダクト内に取り入れられた空気を排出する排気口とで形成されている。
本実施の形態の電気機器用盤３００では、排熱構造が、設置部側ダクト内を流れる空気を各サブダクトに個別に取り入れ、各サブダクトに取り入れられた個別の空気が各放熱フィンを介して各発熱機器の熱を吸収し、各発熱機器の熱を吸収して暖められた空気が各サブダクトから別個に排出するようになっている。The exhaust heat structure of the electrical equipment panel 300 according to the present embodiment includes a plurality of sub-ducts installed in the installation-side ducts, radiating fins disposed in the sub-ducts corresponding to the heat generating devices, A sub duct fan for taking air into the sub ducts and an exhaust port for discharging the air taken into each sub duct are formed.
In the electrical equipment panel 300 according to the present embodiment, the exhaust heat structure individually takes in air flowing through the installation portion side duct into each sub duct, and the individual air taken into each sub duct passes through each radiating fin. The heat of the heat generating device is absorbed, and the air heated by absorbing the heat of each heat generating device is discharged separately from each sub duct.

すなわち、機器収納部の下部側に設置された発熱機器で暖められた空気が、機器収納部の上部側に設置された発熱機器に対応する放熱フィンを囲むサブダクト内に流入しないようになっており、別の発熱機器で暖められた空気が、各発熱機器の放熱フィンに接触しないようになっている。
また、本実施の形態の電気機器用盤３００では、機器収納部内の熱を、屋根部ダクトを流れる空気で排熱する構造は、実施の形態１の電気機器用盤１００のそれと同様である。That is, the air heated by the heat generating device installed on the lower side of the device storage unit does not flow into the sub duct surrounding the heat radiation fin corresponding to the heat generating device installed on the upper side of the device storage unit. The air heated by another heat generating device does not contact the heat radiating fins of each heat generating device.
Moreover, in the electrical equipment panel 300 of the present embodiment, the structure in which the heat in the equipment storage part is exhausted by the air flowing through the roof duct is the same as that of the electrical equipment panel 100 of the first embodiment.

本実施の形態の電気機器用盤３００は、上記のような排熱構造を備えているので、機器収納部内に複数の発熱が大きい発熱機器が設けられていても、各発熱機器の熱を効率よく盤外に排熱でき、高い放熱性能を有する。
本実施の形態では、発熱機器が３個の場合を例示したが、これに限定されず、電気機器用盤に設置できる範囲であれば、幾つでも良い。Since the electrical equipment panel 300 according to the present embodiment has the heat exhaust structure as described above, even if a plurality of heat generating devices that generate a large amount of heat are provided in the device storage portion, the heat of each heat generating device is efficiently obtained. It can exhaust heat well outside the panel and has high heat dissipation performance.
In the present embodiment, the case where there are three heat generating devices is illustrated, but the present invention is not limited to this, and any number may be used as long as it can be installed on a panel for an electric device.

実施の形態４．
図６は、本発明の実施の形態４に係わる電気機器用盤の屋根部分の側面断面模式図である。
図６に示すように、本発明の実施の形態４に係わる電気機器用盤４００は、屋根２の、前面部２ｂから後面部２ｄまでの長さが、側板１ｄの幅と同じであり、屋根部ダクト２５における前面部２ｂの面の開口が屋根部ダクト吸気口２０であり、屋根部ダクト２５における後面部２ｄの面の開口が屋根部ダクト排気口２２である以外、実施の形態１の電気機器用盤１００と同様であり、実施の形態１の電気機器用盤１００と同様な作用効果を有する。Embodiment 4 FIG.
FIG. 6 is a schematic side sectional view of the roof portion of the electrical equipment panel according to Embodiment 4 of the present invention.
As shown in FIG. 6, the electrical equipment panel 400 according to the fourth embodiment of the present invention has the same length of the roof 2 from the front surface portion 2b to the rear surface portion 2d as the width of the side plate 1d. The opening of the surface of the front surface portion 2b in the part duct 25 is the roof portion duct air inlet 20, and the opening of the surface of the rear surface portion 2d in the roof portion duct 25 is the roof portion duct exhaust port 22. It is the same as the equipment panel 100 and has the same effects as the electrical equipment board 100 of the first embodiment.

それと、本実施の形態の電気機器用盤４００は、屋根２が上記のような構造であるので、屋根部ダクト２５の空気の流動抵抗が小さく、屋根部ダクト２５を流れる空気の流速を速くでき、機器収納部１４の熱の排熱能力をさらに向上できる。
本実施の形態の屋根の構造は、実施の形態２の電気機器用盤２００と実施の形態３の電気機器用盤３００とにも適用でき、実施の形態２の電気機器用盤２００と実施の形態３の電気機器用盤３００とに、同様な作用効果をもたらすことができる。In addition, since the roof 2 has the above-described structure, the electrical equipment panel 400 of the present embodiment has a low air flow resistance in the roof duct 25 and can increase the flow velocity of the air flowing through the roof duct 25. In addition, the heat exhausting ability of the device storage unit 14 can be further improved.
The structure of the roof according to the present embodiment can also be applied to the electric device panel 200 according to the second embodiment and the electric device panel 300 according to the third embodiment. The same effect can be brought about with the electric equipment panel 300 according to the third embodiment.

本発明に係わる電気機器用盤は、電気機器用盤の熱を効率よく盤外に排熱でき、高い放熱性能を有するものであり、小型・大容量化が要求される電気機器用盤に利用できる。   The electrical equipment panel according to the present invention is capable of efficiently exhausting heat from the electrical equipment panel to the outside of the panel, has high heat dissipation performance, and is used for electrical equipment panels that require small size and large capacity. it can.

Claims (5)

一方の面に開口を有し、天板と後板と底板と側板とでなる筐体と、上記筐体の開口部を開閉する扉と、上記天板上に接して設けられ、且つ上面部と前面部と側面部と後面部とで形成された屋根と、上記筐体内部に設置された複数の発熱機器とを備えた電気機器用盤であって、
上記筐体には、上端部が上記天板に接合されるとともに両側端部が上記側板に接合され、且つ上記後板と略平行に設けられた設置部と、上記設置部の下端側に上記底板と略平行に設けられた床部とでなるベースが配設されており、
上記天板と平行な一方の面を上記屋根側に露出し、上記天板と平行な他方の面を上記筐体の内側に露出し、且つ上記天板面と垂直な方向の厚さが薄い扁平な熱交換器が上記天板に配設されており、
上記床部と上記底板と上記側板とで形成された床部側ダクトと、上記設置部と上記後板と上記側板とで形成された設置部側ダクトとが連通してなる筐体部ダクトが形成されており、
上記複数の発熱機器が、上記設置部における上記筐体の開口と対向する表面に設けられており、
上記屋根と上記天板とで屋根部ダクトが形成され、上記屋根部ダクトには、上記前面部側に外部空気を吸い込む屋根部ダクト吸気口が設けられ、上記後面部側に屋根部ダクト排気口が設けられ、上記熱交換器の一方の面における上記屋根部ダクト吸気口側の端部に、上記熱交換器方向へ傾斜して屋根部ダクト用ファンが設けられており、
上記ベースと上記天板と上記側板と上記扉とで機器収納部が形成され、上記機器収納部には、上記熱交換器の他方の面における上記設置部方向の端部に、上記熱交換器方向へ傾斜して機器収納部用ファンが設けられており、
上記床部側ダクトの上記筐体の開口側に、第１の開口が設けられており、
上記複数の発熱機器の内の、最も発熱が大きい発熱機器が搭載された上記設置部の部分の裏面にのみ、上記設置部側ダクト内に突出した放熱フィンが設けられており、
上記設置部側ダクト内における上記放熱フィンの設置位置より上方側の位置に、筐体部ダクト用ファンが設けられており、
上記筐体部ダクト用ファンが設けられた位置と略同じ高さから上記天板までの間の上記後板におけるいずれかの位置に第２の開口が設けられており、
上記第１の開口が外部空気を吸い込む筐体部ダクト吸入口であり、上記第２の開口が筐体部ダクト排気口である電気機器用盤。 A housing having an opening on one surface and made of a top plate, a rear plate, a bottom plate, and a side plate, a door for opening and closing the opening of the housing, and a top surface portion provided on and in contact with the top plate And a roof formed by a front surface portion, a side surface portion, and a rear surface portion, and a plurality of heat generating devices installed inside the casing,
The casing has an upper end joined to the top plate and both side ends joined to the side plate and provided substantially parallel to the rear plate, and the lower end side of the installation portion A base consisting of a floor portion provided substantially parallel to the bottom plate is disposed ,
One surface parallel to the top plate is exposed to the roof side, the other surface parallel to the top plate is exposed to the inside of the housing , and the thickness in the direction perpendicular to the top plate surface is thin. A flat heat exchanger is arranged on the top plate ,
A casing portion duct formed by communicating a floor portion side duct formed by the floor portion, the bottom plate, and the side plate, and an installation portion side duct formed by the installation portion, the rear plate, and the side plate. Formed,
The plurality of heat generating devices are provided on the surface of the installation portion that faces the opening of the housing,
A roof part duct is formed by the roof and the top plate, and the roof part duct is provided with a roof part duct inlet for sucking external air on the front side, and a roof part duct outlet on the rear side. Is provided at the end on the roof duct inlet side on one side of the heat exchanger, and a fan for the roof duct is provided so as to be inclined toward the heat exchanger.
The base, the top plate, the side plate, and the door form an equipment storage section, and the equipment storage section has an end portion in the direction of the installation section on the other surface of the heat exchanger. Inclined in the direction, a fan for equipment storage is provided,
A first opening is provided on the opening side of the casing of the floor side duct,
Of the plurality of heat generating devices, only on the back surface of the portion of the installation portion on which the heat generating device with the largest heat generation is mounted, a radiation fin protruding into the installation portion side duct is provided,
A housing duct fan is provided at a position above the installation position of the radiation fin in the installation section side duct,
A second opening is provided at any position in the rear plate between approximately the same height as the position where the housing duct fan is provided and the top plate;
The board for an electrical device, wherein the first opening is a housing part duct suction port for sucking outside air , and the second opening is a housing part duct exhaust port. 上記第１の開口が筐体部ダクト排気口であり、上記第２の開口が外部空気を吸い込む筐体部ダクト吸入口である請求項１に記載の電気機器用盤。 2. The electrical equipment panel according to claim 1, wherein the first opening is a casing duct exhaust port, and the second opening is a casing duct suction port that sucks in external air . 一方の面に開口を有し、天板と後板と底板と側板とでなる筐体と、上記筐体の開口部を開閉する扉と、上記天板上に接して設けられ、且つ上面部と前面部と側面部と後面部とで形成された屋根と、上記筐体内部に設置された複数の発熱機器とを備えた電気機器用盤であって、
上記筐体には、上端部が上記天板に接合されるとともに両側端部が上記側板に接合され、且つ上記後板と略平行に設けられた設置部と、上記設置部の下端側に上記底板と略平行に設けられた床部とでなるベースが配設されており、
一方の面を上記屋根側に露出し、他方の面を上記筐体の内側に露出した熱交換器が上記天板に配設されており、
上記床部と上記底板と上記側板とで形成された床部側ダクトと、上記設置部と上記後板と上記側板とで形成された設置部側ダクトとが連通してなる筐体部ダクトが形成されており、
上記複数の発熱機器が、上記設置部における上記筐体の開口と対向する表面に設けられており、
上記屋根と上記天板とで屋根部ダクトが形成され、上記屋根部ダクトには、上記前面部側に屋根部ダクト吸気口が設けられ、上記後面部側に屋根部ダクト排気口が設けられ、上記屋根部ダクト内に屋根部ダクト用ファンが設けられており、
上記ベースと上記天板と上記側板と上記扉とで機器収納部が形成され、上記機器収納部には、上記熱交換器の他方の面における上記設置部方向の端部に、機器収納部用ファンが設けられており、
上記床部側ダクトの上記筐体の開口側に、外部空気を吸い込む筐体部ダクト吸入口が設けられており、
上記複数の発熱機器が搭載された上記設置部の各部分の裏面に、上記設置部側ダクト内に突出した放熱フィンが設けられ、上記各放熱フィンが、両側壁と上壁と上記設置部と上記後板とで形成され、且つ下側が開口したサブダクトで、覆われており、
上記各サブダクト内の上記各放熱フィンの上端部近傍に、サブダクト用ファンが設けられ、上記各サブダクト用ファンが設けられた位置と略同じ高さ位置の上記後板に、サブダクト排気口が設けられており、
上記各サブダクトが、上記筐体の側板と間隔を設けて設置されている電気機器用盤。 A housing having an opening on one surface and made of a top plate, a rear plate, a bottom plate, and a side plate, a door for opening and closing the opening of the housing, and a top surface portion provided on and in contact with the top plate And a roof formed by a front surface portion, a side surface portion, and a rear surface portion, and a plurality of heat generating devices installed inside the casing,
The casing has an upper end joined to the top plate and both side ends joined to the side plate and provided substantially parallel to the rear plate, and the lower end side of the installation portion A base consisting of a floor portion provided substantially parallel to the bottom plate is disposed,
A heat exchanger having one surface exposed to the roof side and the other surface exposed to the inside of the housing is disposed on the top plate,
A casing portion duct formed by communicating a floor portion side duct formed by the floor portion, the bottom plate, and the side plate, and an installation portion side duct formed by the installation portion, the rear plate, and the side plate. Formed,
The plurality of heat generating devices are provided on the surface of the installation portion that faces the opening of the housing,
A roof part duct is formed by the roof and the top plate, and the roof part duct is provided with a roof part duct inlet on the front side and a roof part duct outlet on the rear side. A roof duct fan is provided in the roof duct,
The base, the top plate, the side plate, and the door form a device storage portion, and the device storage portion has an end portion in the direction of the installation portion on the other surface of the heat exchanger for the device storage portion. There is a fan,
On the opening side of the casing of the floor side duct, a casing duct suction port for sucking outside air is provided,
Radiation fins projecting into the installation part side duct are provided on the back surface of each part of the installation part on which the plurality of heat generating devices are mounted, and each of the radiation fins includes both side walls, an upper wall, and the installation part. The sub-duct is formed with the rear plate and the lower side is open, and is covered .
A sub duct fan is provided in the vicinity of the upper end portion of each radiating fin in each sub duct, and a sub duct exhaust port is provided in the rear plate at a height substantially the same as the position where each sub duct fan is provided. And
The electrical equipment panel in which each of the sub-ducts is installed at a distance from the side plate of the housing . 上記屋根の前面部から後面部までの長さが、上記側板の幅より長く、上記前面部が上記扉の位置より前方に突出しており、上記後面部が上記後板の位置より後方に突出しており、上記屋根部ダクトにおける上記前面部側の突出部下面の開口が上記屋根部ダクト吸気口であり、上記屋根部ダクトにおける上記後面部側の突出部下面の開口が上記屋根部ダクト排気口である請求項１から請求項３のいずれか１項に記載の電気機器用盤。 The length from the front surface portion to the rear surface portion of the roof is longer than the width of the side plate, the front surface portion protrudes forward from the position of the door, and the rear surface portion protrudes rearward from the position of the rear plate. cage, the opening of the protruding lower surface of the front portion side of the roof duct is the roof duct inlet opening in the protruding lower surface of the rear surface side of the roof duct in the roof duct outlet The electrical equipment panel according to any one of claims 1 to 3. 上記屋根の前面部から後面部までの長さが、上記側板の幅と同じであり、上記屋根部ダクトにおける上記前面部の面の開口が上記屋根部ダクト吸気口であり、上記屋根部ダクトにおける上記後面部の面の開口が上記屋根部ダクト排気口である請求項１から請求項３のいずれか１項に記載の電気機器用盤。 Length to the rear surface from the front part of the roof is the same as the width of the side plate, the opening surface of the front portion of the roof duct is the roof duct inlet, in the roof duct The board for an electric device according to any one of claims 1 to 3, wherein the opening on the surface of the rear surface portion is the roof duct exhaust port.
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