JP4403823B2 - Cooling system - Google Patents

Cooling system Download PDF

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JP4403823B2
JP4403823B2 JP2004043200A JP2004043200A JP4403823B2 JP 4403823 B2 JP4403823 B2 JP 4403823B2 JP 2004043200 A JP2004043200 A JP 2004043200A JP 2004043200 A JP2004043200 A JP 2004043200A JP 4403823 B2 JP4403823 B2 JP 4403823B2
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air
air passage
fan
outside air
outside
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JP2005150667A (en
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弘幸 奥村
純弘 野口
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Denso Corp
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Denso Corp
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本発明は、発熱体を冷却する冷却装置に関するもので、電子計算機用の集積回路、携帯電話と最寄りの交換局等との間で送受信される信号を処理する送受信モデム、及び携帯電話へ発信する電波を増幅させる送信アンプ等の電気機器を冷却する冷却装置に適用して有効である。   The present invention relates to a cooling device for cooling a heating element, and relates to an integrated circuit for an electronic computer, a transmission / reception modem for processing a signal transmitted / received between a mobile phone and the nearest exchange station, etc., and a mobile phone. It is effective when applied to a cooling device that cools electrical equipment such as a transmission amplifier that amplifies radio waves.

図１３は、従来の携帯電話基地局用冷却装置の概略を示す図である。   FIG. 13 is a diagram schematically showing a conventional mobile phone base station cooling apparatus.

そして、従来は、携帯電話基地局内の空気と携帯電話基地局外の空気とを熱交換するヒートパイプ式の熱交換器１０、この熱交換器１０に携帯電話基地局内の空気を送風する室内空気用送風機１１、および熱交換器に携帯電話基地局外の空気を送風する室外空気用送風機１２等を備える冷却ユニットを筐体を構成する携帯電話基地局内に、携帯電話基地局が完成したとき、または完成間際のときに後付けしていた。   Conventionally, a heat pipe type heat exchanger 10 that exchanges heat between the air inside the mobile phone base station and the air outside the mobile phone base station, and the indoor air that blows the air inside the mobile phone base station to the heat exchanger 10. When the mobile phone base station is completed in the mobile phone base station constituting the housing, the cooling unit including the blower 11 for outdoor use and the outdoor air blower 12 for blowing the air outside the mobile phone base station to the heat exchanger, Or it was retrofitted just before completion.

ところで、近年、携帯電話基地局内の電気機器の小型化に伴い携帯電話基地局自体も小型になってきており、従来型の冷却ユニット、つまり携帯電話基地局内の空気と携帯電話基地局外の空気とを熱交換するヒートパイプ式の熱交換器、この熱交換器に携帯電話基地局内の空気を送風する室内空気用送風機、および熱交換器に携帯電話基地局外の空気を送風する室外空気用送風機等が１つのケーシングに収納された冷却装置では、小型化に進んだ携帯電話基地局に設置することが困難である場合が増加してきている。   By the way, in recent years, with the miniaturization of the electric equipment in the mobile phone base station, the mobile phone base station itself has also become smaller, and the conventional cooling unit, that is, the air inside the mobile phone base station and the air outside the mobile phone base station. A heat pipe type heat exchanger that exchanges heat with the indoor air blower that blows air inside the mobile phone base station to the heat exchanger, and outdoor air that blows air outside the mobile phone base station to the heat exchanger In a cooling device in which a blower or the like is housed in one casing, there are increasing cases where it is difficult to install the cooling device in a mobile phone base station that has been reduced in size.

本発明は、上記点に鑑み、第１には、従来と異なる新規な発熱体の冷却装置を提供し、第２には、小型化が進んだ携帯電話基地局等においても設置可能な冷却装置を提供することを目的とする。   In view of the above points, the present invention firstly provides a novel cooling device for a heating element different from the conventional one, and secondly, a cooling device that can be installed even in a mobile phone base station or the like that has been miniaturized. The purpose is to provide.

本発明は、上記目的を達成するために、請求項１に記載の発明では、発熱体（１）が収納された筐体（２）内の空気が流れる内気通路（３１）と筐体（２）外の空気が流れる外気通路（３２）とを仕切部材（３３）で仕切り、仕切部材（３３）に接合されて熱交換を促進するフィン（３６ａ、３６ｂ）を内気通路（３１）内および外気通路（３２）内に設け、内気通路（３１）を流れる空気と外気通路（３２）を流れる空気とを仕切部材（３３）およびフィン（３６ａ、３６ｂ）を介して熱交換させる熱交換部（３６）と、内気通路（３１）内に配置され、空気を循環させる内気ファン（３５ａ）と、外気通路（３２）内に配置され、空気を循環させる外気ファン（３５ｂ）と、内気ファン（３５ａ）および外気ファン（３５ｂ）は、遠心力で空気を外径方向に吹き出す遠心式ファンであり、軸方向一端側に内気ファン（３５ａ）が配置され、軸方向他端側に外気ファン（３５ｂ）が配置され、内気ファン（３５ａ）および外気ファン（３５ｂ）からなる１組の送風ファンを回転させる１台のモータ（３５ｃ）とを備え、内気通路（３１）および外気通路（３２）は、互いに平行に並んで延びており、熱交換部（３６）は、内気通路（３１）および外気通路（３２）の長手方向の両端部側に配置され、内気ファン（３５ａ）および外気ファン（３５ｂ）は、内気通路（３１）および外気通路（３２）の長手方向の中央部に配置されるとともに、仕切部材（３３）を挟んで同軸上に配置され、内気通路（３１）の空気導入口（３１ａ）は、内気通路（３１）の長手方向の中央部に設けられ、内気通路（３１）の空気排出口（３１ｂ）は、内気通路（３１）の長手方向の両端部に設けられ、外気通路（３２）の空気導入口（３２ａ）は、外気通路（３２）の長手方向の両端部に設けられ、外気通路（３２）の空気排出口（３２ｂ）は、外気通路（３２）の長手方向の中央部に設けられ、外気ファン（３５ｂ）の一部が、熱交換部（３６）に対して筐体（２）の外部側に張り出した位置に配置されており、熱交換部（３６）から外気ファン（３５ｂ）の吸込口までの通路が形成されており、内気ファン（３５ａ）にて循環される空気は、内気ファン（３５ａ）を通過した後、内気通路（３１）を通って熱交換部（３６）に流入し、外気ファン（３５ｂ）にて循環される空気は、熱交換部（３６）を通過した後、外気通路（３２）を通って外気ファン（３５ｂ）に流入することを特徴とする。 In order to achieve the above object, according to the present invention, an air passage (31) and a housing (2) through which air in a housing (2) containing a heating element (1) flows are provided. ) The outside air passage (32) through which the outside air flows is partitioned by the partition member (33), and the fins (36a, 36b) joined to the partition member (33) to promote heat exchange are provided in the inside air passage (31) and outside air. A heat exchanging section (36) provided in the passage (32) for exchanging heat between the air flowing through the inside air passage (31) and the air flowing through the outside air passage (32) via the partition member (33) and the fins (36a, 36b). ), An inside air fan (35a) arranged in the inside air passage (31) and circulating air, an outside air fan (35b) arranged in the outside air passage (32) and circulating air, and an inside air fan (35a) And the outside air fan (35b) A centrifugal fan for blowing air in the outer diameter direction, is disposed inside air fan (35a) in the axial direction one end side, the outside air fan (35b) are arranged in the other axial end side, inside air fan (35a) and the outdoor air fan (35b) and a single motor (35c) for rotating a pair of blower fans, and the inside air passage (31) and the outside air passage (32) extend in parallel with each other, and the heat exchange section ( 36) is disposed on both ends in the longitudinal direction of the inside air passage (31) and the outside air passage (32), and the inside air fan (35a) and the outside air fan (35b) are the inside air passage (31) and the outside air passage (32). It is disposed at the center portion in the longitudinal direction of the Rutotomoni, across the partition member (33) disposed coaxially, the air inlet inside air passage (31) (31a), the longitudinal center of the inside air passage (31) Provided in the department The air discharge port (31b) of the inside air passage (31) is provided at both ends in the longitudinal direction of the inside air passage (31), and the air introduction port (32a) of the outside air passage (32) is the outside air passage (32). The air discharge port (32b) of the outside air passage (32) is provided at the center of the outside air passage (32) in the longitudinal direction, and a part of the outside air fan (35b) is heated. It is arranged at a position protruding to the outside of the housing (2) with respect to the exchange part (36), and a passage is formed from the heat exchange part (36) to the suction port of the outside air fan (35b), The air circulated by the inside air fan (35a) passes through the inside air fan (35a), then flows into the heat exchange section (36) through the inside air passage (31), and is circulated by the outside air fan (35b). After passing through the heat exchange section (36), the air passing through the outside air passage (32) It flows through the outside air fan (35b) .

これにより、この二重壁構造部分で筐体（２）内の空気と筐体（２）外の空気とが熱交換して筐体（２）内の熱、つまり発熱体（１）で発生した熱が筐体（２）外に放熱されるので、従来型の冷却ユニット、つまり携帯電話基地局内の空気と携帯電話基地局外の空気とを熱交換するヒートパイプ式の熱交換器、この熱交換器に携帯電話基地局内の空気を送風する室内空気用送風機、および熱交換器に携帯電話基地局外の空気を送風する室外空気用送風機等が１つのケーシングに収納された冷却装置に比べて、冷却装置を小型にすることができる。   As a result, the air in the housing (2) and the air outside the housing (2) exchange heat in this double wall structure, and heat is generated in the housing (2), that is, the heating element (1). Heat is dissipated outside the housing (2), so a conventional cooling unit, that is, a heat pipe heat exchanger that exchanges heat between the air inside the mobile phone base station and the air outside the mobile phone base station, Compared to a cooling device in which a blower for indoor air that blows air inside the mobile phone base station to the heat exchanger, an outdoor air blower that blows air outside the mobile phone base station to the heat exchanger, etc. are contained in one casing Thus, the cooling device can be reduced in size.

また、内気ファン（３５ａ）を内気通路（３１）内に収納し、かつ、外気ファン（３５ｂ）を外気通路（３２）内に収納するとともに、内気ファン（３５ａ）および外気ファン（３５ｂ）からなる１組の送風ファンを回転させる１台のモータ（３５ｃ）にて駆動するので、冷却装置を簡素な構造として小型化することができる。   The inside air fan (35a) is housed in the inside air passage (31), and the outside air fan (35b) is housed in the outside air passage (32), and includes the inside air fan (35a) and the outside air fan (35b). Since it drives by one motor (35c) which rotates one set of ventilation fans, a cooling device can be reduced in size as a simple structure.

したがって、小型化が進んだ携帯電話基地局等においても容易に対応することができる冷却装置を得ることができる。   Therefore, it is possible to obtain a cooling device that can easily cope with mobile phone base stations and the like that have been miniaturized.

また、内気通路（３１）を流れる空気と外気通路（３２）を流れる空気とが対向流れとなるため、空気流れ略全域で筐体（２）内の空気と筐体（２）外の空気との温度差を大きく維持でき、筐体（２）内の空気と筐体（２）外の空気とを効率良く熱交換することができる。また、内気ファン（３５ａ）および外気ファン（３５ｂ）を、遠心力で空気を外径方向に吹き出す遠心式ファンとすることにより、内気ファン（３５ａ）および外気ファン（３５ｂ）を収納する冷却装置を小型にしながら、高い送風能力（送風圧力）を得ることができる。 Also, since the air becomes opposed flow through the air and the outside air passage passing through the inside air passage (31) (32), the air and the housing (2) in the housing with air flowing substantially the entire area (2) outside the air And the air inside the housing (2) and the air outside the housing (2) can be efficiently heat-exchanged. Moreover, the inside air fan (35a) and the outside air fan (35b) are centrifugal fans that blow out air in the outside diameter direction by centrifugal force, thereby providing a cooling device that houses the inside air fan (35a) and the outside air fan (35b). A high air blowing capacity (air blowing pressure) can be obtained while reducing the size.

請求項２に記載の発明では、発熱体（１）が収納された筐体（２）内の空気が流れる内気通路（３１）と筐体（２）外の空気が流れる外気通路（３２）とを仕切部材（３３）で仕切り、仕切部材（３３）に接合されて熱交換を促進するフィン（３６ａ、３６ｂ）を内気通路（３１）内および外気通路（３２）内に設け、内気通路（３１）を流れる空気と外気通路（３２）を流れる空気とを仕切部材（３３）およびフィン（３６ａ、３６ｂ）を介して熱交換させる熱交換部（３６）と、内気通路（３１）内に配置され、空気を循環させる内気ファン（３５ａ）と、外気通路（３２）内に配置され、空気を循環させる外気ファン（３５ｂ）と、内気ファン（３５ａ）および外気ファン（３５ｂ）は、遠心力で空気を外径方向に吹き出す遠心式ファンであり、軸方向一端側に内気ファン（３５ａ）が配置され、軸方向他端側に外気ファン（３５ｂ）が配置され、内気ファン（３５ａ）および外気ファン（３５ｂ）からなる１組の送風ファンを回転させる１台のモータ（３５ｃ）とを備え、内気通路（３１）および外気通路（３２）は、互いに平行に並んで延びており、熱交換部（３６）は、内気通路（３１）および外気通路（３２）の長手方向の両端部側に配置され、内気ファン（３５ａ）および外気ファン（３５ｂ）は、内気通路（３１）および外気通路（３２）の長手方向の中央部に配置されるとともに、仕切部材（３３）を挟んで同軸上に配置され、内気通路（３１）の空気導入口（３１ａ）は、内気通路（３１）の長手方向の両端部に設けられ、 内気通路（３１）の空気排出口（３１ｂ）は、内気通路（３１）の長手方向の中央部に設けられ、外気通路（３２）の空気導入口（３２ａ）は、外気通路（３２）の長手方向の中央部に設けられ、内気ファン（３５ａ）の一部が、熱交換部（３６）に対して筐体（２）の内部側に張り出した位置に配置されており、熱交換部（３６）から内気ファン（３５ａ）の吸込口までの通路が形成されており、外気通路（３２）の空気排出口（３２ｂ）は、外気通路（３２）の長手方向の両端部に設けられ、内気ファン（３５ａ）にて循環される空気は、熱交換部（３６）を通過した後、内気通路（３１）を通って内気ファン（３５ａ）に流入し、外気ファン（３５ｂ）にて循環される空気は、外気ファン（３５ｂ）を通過した後、外気通路（３２）を通って熱交換部（３６）に流入することを特徴とする。 In the invention according to claim 2 , the inside air passage (31) through which the air in the housing (2) in which the heating element (1) is housed flows and the outside air passage (32) through which the air outside the housing (2) flows. Are separated by a partition member (33), and fins (36a, 36b) joined to the partition member (33) to promote heat exchange are provided in the inside air passage (31) and the outside air passage (32), and the inside air passage (31 ) And the air flowing through the outside air passage (32) through the partition member (33) and the fins (36a, 36b) and the heat exchange section (36) and the inside air passage (31). The inside air fan (35a) that circulates air, the outside air passage (35b) that circulates air, the inside air fan (35a), and the outside air fan (35b) are arranged by centrifugal force. Centrifugal fan that blows out the outer diameter , And the is disposed inside air fan (35a) in the axial direction one end side, the outside air fan (35b) are arranged in the other axial end side, a pair of blower fan made of inside air fan (35a) and the outside air fan (35b) The internal air passage (31) and the external air passage (32) extend in parallel with each other, and the heat exchange unit (36) includes the internal air passage (31) and the external air passage (31). The inside air fan (35a) and the outside air fan (35b) are arranged at both ends in the longitudinal direction of the outside air passage (32), and are arranged in the longitudinal center of the inside air passage (31) and the outside air passage (32). together, sandwiching the partition member (33) is arranged on the same axis, an air inlet inside air passage (31) (31a) is provided at both ends in the longitudinal direction of the inside air passage (31), the inside air passage (31 ) Air outlet ( 1b) is provided in a central portion in the longitudinal direction of the inside air passage (31), the air inlet of the outside air passage (32) (32a) is provided in a central portion in the longitudinal direction of the outside air passage (32), the inside air fan A part of (35a) is arranged at a position protruding to the inside of the housing (2) with respect to the heat exchange part (36), and the intake port of the inside air fan (35a) from the heat exchange part (36) until passage is formed, an air outlet of the outdoor air passage (32) (32 b) is provided at both ends in the longitudinal direction of the outside air passage (32), air circulated by inside air fan (35a) is After passing through the heat exchange section (36), the air flowing into the inside air fan (35a) through the inside air passage (31) and circulated in the outside air fan (35b) passed through the outside air fan (35b). After that, it flows into the heat exchange section (36) through the outside air passage (32). It is characterized in.

これによると、請求項１の発明と同様の効果を得ることができる。 According to this, the same effect as that of the invention of claim 1 can be obtained.

請求項３に記載の発明では、モータ（３５ｃ）は、仕切部材（３３）より内気通路（３１）側に配置されていることを特徴とする。 The invention according to claim 3 is characterized in that the motor (35c) is arranged closer to the inside air passage (31) than the partition member (33).

これにより、モータ（３５ｃ）が空気と共に外気通路（３２）内に進入した雨水等の水滴に被水してしまうことを未然に防止できるので、モータ（３５ｃ）の防水構造を簡素なものとすることができ得る。延いては、モータ（３５ｃ）の製造原価、つまり冷却装置のを低減することができる。   As a result, it is possible to prevent the motor (35c) from getting wet with water, such as rainwater, which has entered the outside air passage (32) together with the air, so that the waterproof structure of the motor (35c) is simplified. Can be. As a result, the manufacturing cost of the motor (35c), that is, the cooling device can be reduced.

請求項４に記載の発明では、仕切部材（３３）には、外気ファン（３５ｂ）を回転させる回転シャフト（３５ｆ）が貫通する貫通穴（３５ｇ）が設けられており、さらに、貫通穴（３５ｇ）と回転シャフト（３５ｆ）との隙間を密閉するシール手段（３５ｈ）を有していることを特徴とする。 In the invention according to claim 4 , the partition member (33) is provided with a through hole (35g) through which the rotating shaft (35f) for rotating the outside air fan (35b) passes, and further, the through hole (35g) ) And the rotating shaft (35f), the sealing means (35h) for sealing the gap.

これにより、モータ（３５ｃ）が空気と共に外気通路（３２）内に進入した雨水等の水滴に被水してしまうことを確実に防止できる。   Accordingly, it is possible to reliably prevent the motor (35c) from getting wet with water droplets such as rainwater that has entered the outside air passage (32) together with the air.

請求項５に記載の発明では、シール手段（３５ｈ）は、貫通穴（３５ｇ）と回転シャフト（３５ｆ）との隙間を迷路構造化したメカニカルシールにより構成されていることを特徴とするものである。 The invention according to claim 5 is characterized in that the sealing means (35h) is constituted by a mechanical seal in which the gap between the through hole (35g) and the rotating shaft (35f) is a maze structure. .

請求項６に記載の発明では、仕切部材（３３）は、アルミニウムを主成分とする金属製であることを特徴とするものである。 The invention according to claim 6 is characterized in that the partition member (33) is made of a metal mainly composed of aluminum.

請求項７に記載の発明では、フィン（３６ａ、３６ｂ）は、多数個の湾曲部とこの湾曲部間を繋ぐ繋ぎ部を有すように波状に形成されおり、内気通路（３１）に配置されたフィン（３６ａ）の湾曲部と外気通路（３２）に配置されたフィン（３６ｂ）の湾曲部とは、仕切部材（３３）を挟んで同位置にて仕切部材（３３）に接合されていることを特徴とする。 In the invention described in claim 7 , the fins (36a, 36b) are formed in a wave shape so as to have a large number of curved portions and connecting portions connecting the curved portions, and are arranged in the inside air passage (31). The curved portion of the fin (36a) and the curved portion of the fin (36b) disposed in the outside air passage (32) are joined to the partition member (33) at the same position across the partition member (33). It is characterized by that.

これにより、内気通路（３１）に配置されたフィン（３６ａ）から外気通路（３２）に配置されたフィン（３６ｂ）に至る伝熱経路は、内気通路（３１）に配置されたフィン（３６ａ）の湾曲部と外気通路（３２）に配置されたフィン（３６ｂ）の湾曲部とが仕切部材（３３）を挟んでずれている場合に比べて短くなる。   Thereby, the heat transfer path from the fin (36a) arranged in the inside air passage (31) to the fin (36b) arranged in the outside air passage (32) is the fin (36a) arranged in the inside air passage (31). And the curved portion of the fin (36b) disposed in the outside air passage (32) are shorter than the case where the curved portion is displaced with the partition member (33) interposed therebetween.

したがって、内気通路（３１）に配置されたフィン（３６ａ）から外気通路（３２）に配置されたフィン（３６ｂ）に至る熱抵抗が小さくなるので、冷却装置、つまり二重壁構造部分での熱交換量を増大させることができる。   Therefore, the heat resistance from the fin (36a) arranged in the inside air passage (31) to the fin (36b) arranged in the outside air passage (32) is reduced, so that the heat in the cooling device, that is, the double wall structure portion is reduced. The exchange amount can be increased.

請求項８に記載の発明では、内気通路（３１）に配置されたフィン（３６ａ）と外気通路（３２）に配置されたフィン（３６ｂ）とは、同一のピッチ寸法を有するコルゲートフィンであることを特徴とするものである。 In the invention according to claim 8 , the fin (36a) arranged in the inside air passage (31) and the fin (36b) arranged in the outside air passage (32) are corrugated fins having the same pitch dimension. It is characterized by.

請求項９に記載の発明では、仕切部材（３３）は、矩形波状に形成されていることを特徴とする。 The invention according to claim 9 is characterized in that the partition member (33) is formed in a rectangular wave shape.

これにより、内気通路（２ｂ）と外気通路（２ｃ）とが交互に存在することとなるので、仕切部材（３３）の表面積、つまり筐体（２）内の空気と筐体（２）外の空気との熱交換面積が増大する。   Thereby, since the inside air passage (2b) and the outside air passage (2c) exist alternately, the surface area of the partition member (33), that is, the air inside the housing (2) and the outside of the housing (2) Heat exchange area with air increases.

したがって、冷却装置が大型化することを抑制しつつ、筐体（２）内の空気と筐体（２）外の空気との熱交換量を増大させることができる。   Therefore, it is possible to increase the amount of heat exchange between the air in the housing (2) and the air outside the housing (2) while suppressing an increase in the size of the cooling device.

請求項１０に記載の発明では、内気通路（３１）流入する空気の温度上昇に応じて内気ファン（３５ａ）および外気ファン（３５ｂ）の送風量を増大させる制御手段を備えることを特徴とする。 The invention according to claim 10 is characterized by comprising control means for increasing the blowing amount of the inside air fan (35a) and the outside air fan (35b) in accordance with the temperature rise of the air flowing into the inside air passage (31).

これにより、内気ファン（３５ａ）および外気ファン（３５ｂ）の消費動力が不必要に増大すること、および送風騒音が増大することを抑制できる。   Thereby, it can suppress that the power consumption of an internal air fan (35a) and an external air fan (35b) increases unnecessarily, and increase in ventilation noise.

請求項１１に記載の発明では、内気ファン（３５ａ）を通過して内気通路（３１）を流れる空気の流れ方向と、熱交換部（３６）内の空気の流れ方向が、平行であることを特徴とする。 In the invention described in claim 11 , the flow direction of the air flowing through the internal air passage (31) through the internal air fan (35a) and the flow direction of the air in the heat exchange section (36) are parallel. Features.

これによると、熱交換部３６内の空気流れの低圧損化を図ることができる。   According to this, the low pressure loss of the air flow in the heat exchange part 36 can be achieved.

請求項１２に記載の発明では、熱交換部（３６）を通過して外気通路（３２）を流れる空気の流れ方向と、熱交換部（３６）内の空気の流れ方向が、平行であることを特徴とする。 In the invention according to claim 12 , the flow direction of the air flowing through the outside air passage (32) through the heat exchange section (36) and the flow direction of the air in the heat exchange section (36) are parallel. It is characterized by.

これによると、熱交換部３６内の空気流れの低圧損化を図ることができる。   According to this, the low pressure loss of the air flow in the heat exchange part 36 can be achieved.

因みに、上記各手段の括弧内の符号は、後述する実施形態に記載の具体的手段との対応関係を示す一例である。   Incidentally, the reference numerals in parentheses of each means described above are an example showing the correspondence with the specific means described in the embodiments described later.

（第１実施形態）
本実施形態は、携帯電話と最寄りの交換局等との間で送受信される信号を処理する送受信モデム、及び携帯電話へ発信する電波を増幅させる送信アンプ等の通信機器等の発熱体を冷却する携帯電話基地局用冷却装置に本発明に係る冷却装置を適用したものである。 (First embodiment)
The present embodiment cools a heating element such as a transmission / reception modem that processes a signal transmitted / received between a mobile phone and the nearest exchange, and a communication device such as a transmission amplifier that amplifies a radio wave transmitted to the mobile phone. The cooling device according to the present invention is applied to a cooling device for a mobile phone base station.

なお、図１は発熱体をなす通信機器１が収納された略六面体状の筐体２に本実施形態に係る冷却装置３を装着した状態を示す外観図であり、図２は本実施形態に係る冷却装置３を筐体２と反対側から見た外観斜視図であり、図３は本実施形態に係る冷却装置３を筐体２側から見た外観斜視図であり、図４は本実施形態に係る冷却装置の構造を示す断面模式図である。   FIG. 1 is an external view showing a state in which the cooling device 3 according to the present embodiment is mounted on a substantially hexahedron-shaped casing 2 in which a communication device 1 that forms a heating element is housed. FIG. FIG. 3 is an external perspective view of the cooling device 3 as viewed from the opposite side to the housing 2, FIG. 3 is an external perspective view of the cooling device 3 according to the present embodiment as viewed from the housing 2, and FIG. It is a cross-sectional schematic diagram which shows the structure of the cooling device which concerns on a form.

そして、冷却装置３は、図４に示すように、筐体２内の空気が流れる内気通路３１と筐体２外の空気が流れる外気通路３２が設けられており、内気通路３１と外気通路３２とを仕切る仕切部材をなす仕切板３３は、内気通路３１を流れる筐体２内の空気と外気通路３２を流れる筐体２外の空気との間で熱交換可能な材質により構成されている。   As shown in FIG. 4, the cooling device 3 includes an inside air passage 31 through which air inside the housing 2 flows and an outside air passage 32 through which air outside the housing 2 flows. The inside air passage 31 and the outside air passage 32 are provided. The partition plate 33 that forms a partition member for partitioning is formed of a material that can exchange heat between the air in the housing 2 flowing through the inside air passage 31 and the air outside the housing 2 flowing through the outside air passage 32.

なお、本実施形態では、仕切板３３をアルミニウムを主成分とする合金または銅を主成分とする合金等の非鉄金属とするとともに、外気通路３２および内気通路３１の外殻（内気カバー、外気カバーに相当）を構成する外板３４を仕切板３３と同質の材質にて構成しているが、少なくとも外板３４は、断熱性が高く、かつ、太陽からの日射を吸収し難い材質および塗装を施したものを採用することが望ましい。   In the present embodiment, the partition plate 33 is made of a non-ferrous metal such as an alloy containing aluminum as a main component or an alloy containing copper as a main component, and the outer shell of the outside air passage 32 and the inside air passage 31 (inside air cover, outside air cover). The outer plate 34 is made of the same material as the partition plate 33. However, at least the outer plate 34 is made of a material and a coating that have high heat insulation properties and are difficult to absorb solar radiation. It is desirable to use what has been applied.

また、内気通路３１および外気通路３２は、互いに平行に並んで紙面上下方向に延びているとともに、その延びの方向（紙面上下方向）の略中央部には、送風機３５が配置されている。   Further, the inside air passage 31 and the outside air passage 32 are arranged in parallel with each other and extend in the vertical direction on the paper surface, and a blower 35 is disposed at a substantially central portion in the extending direction (the vertical direction on the paper surface).

そして、この送風機３５は、内気通路３１内に配置されて筐体２内から空気を吸引してその吸引した空気を内気通路３１内に循環させる内気ファン３５ａ、筐体２外から空気を吸引してその吸引した空気を外気通路３２内に循環させる外気ファン３５ｂ、および内気ファン３５ａおよび外気ファン３５ｂからなる１組の送風ファンを回転させるアウタロータ型電動式のモータ３５ｃ等から構成されている。   The blower 35 is disposed in the inside air passage 31 and sucks air from inside the housing 2 and circulates the sucked air into the inside air passage 31, and sucks air from outside the housing 2. The outside air fan 35b that circulates the sucked air into the outside air passage 32, and the outer rotor type electric motor 35c that rotates a pair of blower fans including the inside air fan 35a and the outside air fan 35b, and the like.

因みに、アウタロータ型電動モータとは、ステータ（固定子）の外周側にロータ（回転子）を配置したもので、インナーロータ型の通常のモータより扁平にすることができる。   Incidentally, the outer rotor type electric motor has a rotor (rotor) disposed on the outer peripheral side of a stator (stator), and can be made flatter than an inner rotor type normal motor.

そして、内気ファン３５ａの送風量および外気ファン３５ｂの送風量は、筐体２内の空気の温度を検出する内気温度センサ（図示せず。）の検出温度に基づいて電子制御装置（図示せず。）にて制御されており、この制御手段をなす電子制御装置は、筐体２内の空気の温度が上昇すると、その上昇量に応じて線形的に内気ファン３５ａの送風量および外気ファン３５ｂの送風量を増大させ、逆に、筐体２内の空気の温度が低下すると、その低下量に応じて線形的に内気ファン３５ａの送風量および外気ファン３５ｂの送風量を低下させる。   The amount of air blown by the inside air fan 35a and the amount of air blown by the outside air fan 35b are based on the detected temperature of an inside air temperature sensor (not shown) that detects the temperature of the air in the housing 2 and is electronically controlled (not shown). The electronic control device constituting the control means is linearly controlled according to the amount of increase in the air temperature in the housing 2 and the outside air fan 35b. When the temperature of the air in the housing 2 decreases, the air volume of the inside air fan 35a and the air volume of the outside air fan 35b are linearly reduced according to the amount of decrease.

なお、本実施形態では、内気ファン３５ａおよび外気ファン３５ｂとして、遠心力により空気を外径方向に吹き出す遠心ファン（ＪＩＳ Ｂ ０１３２番号１００４等参照）を採用しており、羽根車の回転軸方向から吸引された空気は、遠心力により羽根車の外径側に吹き出される。   In this embodiment, as the inside air fan 35a and the outside air fan 35b, a centrifugal fan (see JIS B 0132 No. 1004 or the like) that blows air in the outer diameter direction by a centrifugal force is adopted. The sucked air is blown out to the outer diameter side of the impeller by centrifugal force.

そして、内気ファン３５ａおよび外気ファン３５ｂの外周側には、内気ファン３５ａまたは外気ファン３５ｂから吹き出す空気の通路を構成する渦巻き状の内気ファン用スクロール３５ｄ（図３参照）および外気ファン用スクロール３５ｅ（図１参照）が設けられている。   Further, on the outer peripheral side of the inside air fan 35a and the outside air fan 35b, a spiral inside air fan scroll 35d (see FIG. 3) and an outside air fan scroll 35e (see FIG. 3) constituting a passage of air blown from the inside air fan 35a or the outside air fan 35b (see FIG. 3). 1) is provided.

また、内気ファン３５ａと外気ファン３５ｂとは、モータ３５ｃを内気通路３１内に配置した状態で仕切板３３を挟んで同軸状に配置されており、モータ３５ｃの軸方向一端側に内気ファン３５ａが配置されてロータに固定され、軸方向他端側に外気ファン３５ｂが配置されてロータと一体的に回転する回転シャフト３５ｆに固定されている。   Further, the inside air fan 35a and the outside air fan 35b are arranged coaxially with the partition plate 33 sandwiched in a state where the motor 35c is arranged in the inside air passage 31, and the inside air fan 35a is disposed at one axial end of the motor 35c. It is arranged and fixed to the rotor, and an outside air fan 35b is arranged on the other end side in the axial direction and fixed to a rotating shaft 35f that rotates integrally with the rotor.

また、回転シャフト３５ｆは、図５に示すように、仕切板３３に設けられた貫通穴３５ｇを貫通して内気通路３１側から外気通路３２側に到達しているので、本実施形態では、貫通穴３５ｇと回転シャフト３５ｆとの隙間を迷路構造化してメカニカルシール部３５ｈを設けることにより、貫通穴３５ｇと回転シャフト３５ｆとの隙間を密閉するシール手段を構成している。   Further, as shown in FIG. 5, the rotating shaft 35f passes through the through hole 35g provided in the partition plate 33 and reaches the outside air passage 32 side from the inside air passage 31 side. By forming a labyrinth structure in the gap between the hole 35g and the rotating shaft 35f and providing a mechanical seal portion 35h, a sealing means for sealing the gap between the through hole 35g and the rotating shaft 35f is configured.

また、本実施形態では、図４に示すように、内気通路３１の空気導入口３１ａは、内気通路３１の長手方向（紙面上下方向）の略中央部、つまり内気ファン３５ａが配置された部位に設けられており、内気通路３１の空気排出口３１ｂは、内気通路３１の長手方向（紙面上下方向）端部に設けられている。   Further, in the present embodiment, as shown in FIG. 4, the air introduction port 31 a of the inside air passage 31 is at a substantially central portion in the longitudinal direction (up and down direction in the drawing) of the inside air passage 31, that is, at a portion where the inside air fan 35 a is disposed. The air outlet 31b of the inside air passage 31 is provided at the end of the inside air passage 31 in the longitudinal direction (vertical direction in the drawing).

そして、筐体２内の空気は、空気導入口３１ａから内気通路３１、つまり内気ファン３５ａに吸引されて内気通路３１内を空気排出口３１ｂに向かって流れた後、空気排出口３１ｂから筐体２内に戻ってくる。換言すると、空気導入口３１ａから吸い込まれた空気は、内気ファン３５ａの径方向外側（本例では紙面上下方向）に向かって且つ仕切板３３と平行に吹き出され、後述する熱交換部３６を通過した後、筐体２内に排出される。   And the air in the housing | casing 2 is attracted | sucked by the internal air channel | path 31 from the air inlet 31a, ie, the internal air fan 35a, and flows through the inside air channel | path 31 toward the air exhaust port 31b, Then, from the air exhaust port 31b to a housing | casing Come back in 2. In other words, the air sucked from the air introduction port 31a is blown toward the radially outer side of the inside air fan 35a (in this example, the vertical direction on the paper surface) and in parallel with the partition plate 33, and passes through a heat exchanging unit 36 described later. After that, it is discharged into the housing 2.

一方、外気通路３２の空気導入口３２ａは、外気通路３２の長手方向（紙面上下方向）端部に設けられており、外気通路３２の空気排出口３２ｂ（図１参照）は、外気通路３２の長手方向（紙面上下方向）の略中央部、つまり外気ファン３５ｂが配置された部位に設けられている。   On the other hand, the air introduction port 32 a of the outside air passage 32 is provided at an end portion in the longitudinal direction (up and down direction in the drawing) of the outside air passage 32, and the air discharge port 32 b (see FIG. 1) of the outside air passage 32 is It is provided at a substantially central portion in the longitudinal direction (up and down direction in the drawing), that is, at a portion where the outside air fan 35b is disposed.

そして、筐体２外の空気は、空気導入口３２ａから外気通路３２内に吸引されて外気通路３２内を空気排出口３２ｂに向かって流れた後、空気排出口３２ｂから筐体２外に排出される。換言すると、空気導入口３２ａから吸い込まれた空気は後述する熱交換部３６を通過した後、外気ファン３５ｂの径方向内側（本例では紙面上下方向）に向かって且つ仕切板３３と平行に流れて、外気ファン３５ｂの吸い込み口に吸い込まれる。   The air outside the housing 2 is sucked into the outside air passage 32 from the air introduction port 32a and flows through the outside air passage 32 toward the air discharge port 32b, and then is discharged out of the housing 2 from the air discharge port 32b. Is done. In other words, the air sucked from the air introduction port 32a passes through a heat exchanging portion 36, which will be described later, and then flows inward in the radial direction of the outside air fan 35b (in this example, the vertical direction in the drawing) and parallel to the partition plate 33. Then, it is sucked into the suction port of the outside air fan 35b.

このため、本実施形態では、内気通路３１を流れる筐体２内の空気は、内気ファン３５ａから離れるように空気排出口３１ｂに向かって流れ、一方、外気通路３２を流れる筐体２外の空気は、外気ファン３５ｂに近づくように空気排出口３２ｂに向かって流れるので、内気通路３１を流れる筐体２内の空気と外気通路３２を流れる筐体２外の空気とは対向流れとなる。   For this reason, in the present embodiment, the air in the housing 2 flowing through the inside air passage 31 flows toward the air outlet 31b so as to be away from the inside air fan 35a, while the air outside the housing 2 flowing through the outside air passage 32. Since the air flows toward the air discharge port 32b so as to approach the outside air fan 35b, the air in the housing 2 flowing through the inside air passage 31 and the air outside the housing 2 flowing through the outside air passage 32 are opposed to each other.

また、内気通路３１内のうち内気ファン３５ａより空気流れ下流側、および外気通路３２内のうち外気ファン３５ｂより空気流れ上流側、つまり内気通路３１および外気通路３２の長手方向（紙面上下方向）端部側には、筐体２内の空気と筐体２外の空気との熱交換を促進する熱交換部３６が設けられている。換言すると、熱交換部３６は、内気ファン３５ａおよび外気ファン３５ｂの径方向の端部（本例では紙面上部側と紙面下部側）に配置されている。   Further, the inside air passage 31 has an air flow downstream side from the inside air fan 35a and the outside air passage 32 has an air flow upstream side from the outside air fan 35b, that is, the longitudinal direction (vertical direction in the drawing) direction of the inside air passage 31 and the outside air passage 32. On the part side, a heat exchanging portion 36 that promotes heat exchange between the air inside the housing 2 and the air outside the housing 2 is provided. In other words, the heat exchanging unit 36 is disposed at the radial ends of the inside air fan 35a and the outside air fan 35b (in this example, the upper side and the lower side).

この熱交換部３６内の空気通路は、内気ファン３５ａおよび外気ファン３５ｂの径方向に延びている。したがって、内気ファン３５ａから吹き出された空気の流れ方向と熱交換部３６内の空気の流れ方向は平行となる。また、熱交換部３６内の空気の流れ方向と、熱交換部３６を通過して外気通路３２を流れる空気の流れ方向も、平行となる。   The air passage in the heat exchanging portion 36 extends in the radial direction of the inside air fan 35a and the outside air fan 35b. Therefore, the flow direction of the air blown out from the inside air fan 35a is parallel to the flow direction of the air in the heat exchange unit 36. In addition, the flow direction of air in the heat exchange unit 36 and the flow direction of air passing through the heat exchange unit 36 and flowing in the outside air passage 32 are also parallel.

この熱交換部３６は、図６に示すように、空気との接触面積（伝熱面積）を増大させて筐体２内の空気と筐体２外の空気との熱交換を促進するフィン３６ａ、３６ｂを有して構成されている。   As shown in FIG. 6, the heat exchanging portion 36 increases the contact area (heat transfer area) with air to promote heat exchange between the air inside the housing 2 and the air outside the housing 2. 36b.

そして、両フィン３６ａ、３６ｂは、空気の流通方向から見て、多数個の湾曲部とこの湾曲部間を繋ぐ繋ぎ部を有すように波状に形成されているとともに、繋ぎ部には、繋ぎ部の一部を鎧窓状に切り起こしたルーバ（図示せず。）が形成されている。   The fins 36a and 36b are formed in a wave shape so as to have a large number of curved portions and connecting portions that connect the curved portions as viewed from the direction of air flow. A louver (not shown) is formed by cutting and raising a part of the part into an armor window shape.

なお、ルーバとは、空気流れを蛇行させるように乱して温度境界層が成長することを抑制して熱伝達率を向上させるもので、車両用空調装置のコンデンサや車両用ラジエータに採用されているものと同様なものである。   The louver suppresses the growth of the temperature boundary layer by disturbing the air flow in a meandering manner and improves the heat transfer coefficient. It is used for a condenser of a vehicle air conditioner and a radiator for a vehicle. It is similar to what is there.

また、フィン３６ａ、３６ｂは、内気通路３１に配置されたフィン３６ｂの湾曲部と外気通路３２に配置されたフィン３６ａの湾曲部とが仕切板３３を挟んで同位置となるように仕切板３３に接合されている。   In addition, the fins 36 a and 36 b have the partition plate 33 such that the curved portion of the fin 36 b disposed in the inside air passage 31 and the curved portion of the fin 36 a disposed in the outside air passage 32 are in the same position with the partition plate 33 interposed therebetween. It is joined to.

このとき、本実施形態では、内気通路３１に配置されたフィン３６ｂのフィンピッチと外気通路３２に配置されたフィン３６ａのフィンピッチとを等しくしているので、内気通路３１に配置されたフィン３６ｂと外気通路３２に配置されたフィン３６ａとは、仕切板３３を挟んで線対称となっている。   At this time, in this embodiment, since the fin pitch of the fins 36b arranged in the inside air passage 31 is equal to the fin pitch of the fins 36a arranged in the outside air passage 32, the fins 36b arranged in the inside air passage 31 are the same. The fins 36 a disposed in the outside air passage 32 are line-symmetric with respect to the partition plate 33.

因みに、本実施形態では、フィン３６ａ、３６ｂと仕切板３３とは、ろう接にて接合されている。ここで、「ろう接」とは、例えば「接続・接合技術」（東京電機大学出版局）に記載されているように、ろう材やはんだを用いて母材を溶融させないように接合する技術を言い、融点が４５０℃以上の溶加材を用いて接合するときをろう付けと言い、その際の溶加材をろう材と呼び、融点が４５０℃以下の溶加材を用いて接合するときをはんだ付けと言い、その際の溶加材をはんだと呼ぶ。   Incidentally, in this embodiment, the fins 36a and 36b and the partition plate 33 are joined by brazing. Here, “brazing” is a technique for joining so as not to melt the base material using brazing material or solder, as described in “connection / joining technology” (Tokyo Denki University Press). When joining using a filler material having a melting point of 450 ° C. or higher is called brazing, the filler material at that time is called brazing material, and when joining using a filler material having a melting point of 450 ° C. or less Is called soldering, and the filler material at that time is called solder.

ここで、図４に示すように、外気ファン３５ｂは、その一部あるいは全部が、熱交換部３６における筐体２外部側の端面よりもさらに筐体２外部側に張り出した位置に配置されている。これによって、熱交換部３６から外気ファン３５ｂの吸い込み口までの通路を形成して、外気ファン３５ｂの上流側に熱交換部３６を配置し空気を吸込むことができるようにしている。   Here, as shown in FIG. 4, a part or all of the outside air fan 35 b is arranged at a position where the outside air fan 35 b protrudes further to the outside of the housing 2 than the end surface of the heat exchange unit 36 on the outside of the housing 2. Yes. Thus, a passage from the heat exchange unit 36 to the suction port of the outside air fan 35b is formed, and the heat exchange unit 36 is arranged on the upstream side of the outside air fan 35b so that air can be sucked.

次に、本実施形態に係る冷却装置の概略作動を述べる。   Next, the general operation of the cooling device according to this embodiment will be described.

筐体２内の空気の温度上昇に応じて内気ファン３５ａの送風量および外気ファン３５ｂの送風量を増大させ、逆に、筐体２内の空気の温度低下に応じて内気ファン３５ａの送風量および外気ファン３５ｂの送風量を低下させる。   The amount of air blown by the inside air fan 35a and the amount of air blown by the outside air fan 35b are increased in accordance with the temperature rise of the air in the housing 2, and conversely, the air flow rate of the inside air fan 35a in accordance with the temperature drop of the air in the housing 2 And the ventilation volume of the external air fan 35b is reduced.

これにより、内気通路３１を流れる筐体２内の空気と外気通路３２を流れる筐体２外の空気とが、仕切板３３を挟んで熱交換される。   As a result, the air in the housing 2 flowing through the inside air passage 31 and the air outside the housing 2 flowing through the outside air passage 32 are heat-exchanged with the partition plate 33 interposed therebetween.

なお、筐体２内の空気と筐体２外の空気との熱交換の大部分は、内気通路３１および外気通路３２のうちフィン３６ａ、３６ｂが配設された部位、つまり熱交換部３６に行われる。   It should be noted that most of the heat exchange between the air inside the housing 2 and the air outside the housing 2 is in the portion of the inside air passage 31 and the outside air passage 32 where the fins 36a and 36b are disposed, that is, the heat exchanging portion 36. Done.

次に、本実施形態の特徴を述べる。   Next, features of the present embodiment will be described.

本実施形態では、冷却装置３を筐体２内の空気が流れる内気通路３１および筐体２外の空気が流れる外気通路３２とからなる二重壁構造として、この二重壁構造部分で筐体２内の空気と筐体２外の空気とを熱交換して筐体２内の熱、つまり通信機器１で発生した熱を筐体２外に放熱するので、従来型の冷却ユニット、つまり携帯電話基地局内の空気と携帯電話基地局外の空気とを熱交換するヒートパイプ式の熱交換器、この熱交換器に携帯電話基地局内の空気を送風する室内空気用送風機、および熱交換器に携帯電話基地局外の空気を送風する室外空気用送風機等が１つのケーシングに収納された冷却装置に比べて、冷却装置を小型にすることができる。   In the present embodiment, the cooling device 3 has a double wall structure consisting of an inside air passage 31 through which air inside the housing 2 flows and an outside air passage 32 through which air outside the housing 2 flows. The air inside the housing 2 and the air outside the housing 2 are heat-exchanged to dissipate the heat inside the housing 2, that is, the heat generated in the communication device 1 to the outside of the housing 2. A heat pipe type heat exchanger that exchanges heat between the air inside the telephone base station and the air outside the mobile phone base station, an indoor air blower that blows air inside the mobile phone base station, and a heat exchanger The cooling device can be made smaller than a cooling device in which an outdoor air blower or the like that blows air outside the mobile phone base station is housed in one casing.

また、内気ファン３５ａを内気通路３１内に収納し、かつ、外気ファン３５ｂを外気通路３２内に収納するとともに、内気ファン３５ａおよび外気ファン３５ｂからなる１組の送風ファンを回転させる１台のモータ３５ｃにて駆動するので、送風機３５を簡素な構造として小型化することができる。   In addition, one motor that accommodates the inside air fan 35a in the inside air passage 31 and that accommodates the outside air fan 35b in the outside air passage 32 and rotates a pair of blowing fans including the inside air fan 35a and the outside air fan 35b. Since it drives by 35c, the air blower 35 can be reduced in size as a simple structure.

したがって、小型化が進んだ携帯電話基地局等においても容易に対応することができる冷却装置を得ることができる。   Therefore, it is possible to obtain a cooling device that can easily cope with mobile phone base stations and the like that have been miniaturized.

また、モータ３５ｃを仕切板３３より内気通路３１側に配置しているので、モータ３５ｃが空気と共に外気通路３２内に進入した雨水等の水滴に被水してしまうことを未然に防止できる。したがって、モータ３５ｃの防水構造を簡素なものとすることができ得るので、モータ３５ｃの製造原価、つまり冷却装置３の製造原価を低減することができる。   In addition, since the motor 35c is disposed on the side of the internal air passage 31 from the partition plate 33, it is possible to prevent the motor 35c from getting wet with water droplets such as rainwater entering the external air passage 32 together with air. Therefore, since the waterproof structure of the motor 35c can be simplified, the manufacturing cost of the motor 35c, that is, the manufacturing cost of the cooling device 3 can be reduced.

また、貫通穴３５ｇと回転シャフト３５ｆとの隙間を迷路構造化してメカニカルシール部３５ｈを設けているので、モータ３５ｃが空気と共に外気通路３２内に進入した雨水等の水滴に被水してしまうことを確実に防止できる。   Further, since the gap between the through hole 35g and the rotating shaft 35f is made into a maze structure and the mechanical seal portion 35h is provided, the motor 35c gets wet with water droplets such as rain water entering the outside air passage 32 together with the air. Can be reliably prevented.

また、内気ファン３５ａおよび外気ファン３５ｂとして、遠心ファン（遠心式送風機）を採用しているので、内気ファン３５ａおよび外気ファン３５ｂを収納する冷却装置３を小型にしながら、高い送風能力（送風圧力）を得ることができる。   Moreover, since the centrifugal fan (centrifugal blower) is adopted as the inside air fan 35a and the outside air fan 35b, the cooling device 3 that houses the inside air fan 35a and the outside air fan 35b is made small, and a high blowing capacity (air blowing pressure). Can be obtained.

また、本実施形態では、筐体２内の空気と筐体２外の空気とを対向流れとしているので、空気流れ略全域で筐体２内の空気と筐体２外の空気との温度差を大きく維持でき、筐体２内の空気と筐体２外の空気とを効率良く熱交換することができる。   Further, in the present embodiment, the air inside the housing 2 and the air outside the housing 2 are opposed to each other, so that the temperature difference between the air inside the housing 2 and the air outside the housing 2 is almost the entire air flow. Can be kept large, and the air inside the housing 2 and the air outside the housing 2 can be efficiently heat-exchanged.

また、フィン３６ａ、３６ｂとして、高い熱伝達率を得ることができるコルゲートフィン、つまり波状のフィンを採用しているので、冷却装置、つまり二重壁構造部分での熱交換量を増大させることができる。   Further, as the fins 36a and 36b, corrugated fins that can obtain a high heat transfer coefficient, that is, corrugated fins are adopted, so that the amount of heat exchange in the cooling device, that is, the double wall structure portion can be increased. it can.

ところで、内気通路３１および外気通路３２において、フィン３６ａ、３６ｂが設けられた部位においては、筐体２内の空気の熱は、フィン３６ｂを介して仕切板３３に伝達され、仕切板３３に伝達された筐体２内の空気の熱は、フィン３６ａを介して筐体２外の空気に伝達される。   By the way, in the inside air passage 31 and the outside air passage 32, the heat of the air in the housing 2 is transmitted to the partition plate 33 through the fins 36b and transmitted to the partition plate 33 in the portion where the fins 36a and 36b are provided. The heat of the air inside the housing 2 is transmitted to the air outside the housing 2 through the fins 36a.

このとき、本実施形態では、内気通路３１に配置されたフィン３６ｂの湾曲部と外気通路３２に配置されたフィン３６ａの湾曲部とは、仕切板３３を挟んで同位置にて仕切板３３に接合されているので、内気通路３１に配置されたフィン３６ｂから外気通路３２に配置されたフィン３６ａに至る伝熱経路は、内気通路３１に配置されたフィン３６ｂの湾曲部と外気通路３２に配置されたフィン３６ａの湾曲部とが仕切板３３を挟んでずれている場合に比べて短くなる。   At this time, in the present embodiment, the curved portion of the fin 36b disposed in the inside air passage 31 and the curved portion of the fin 36a disposed in the outside air passage 32 are located on the partition plate 33 at the same position with the partition plate 33 interposed therebetween. Since they are joined, the heat transfer path from the fin 36b arranged in the inside air passage 31 to the fin 36a arranged in the outside air passage 32 is arranged in the curved portion of the fin 36b arranged in the inside air passage 31 and the outside air passage 32. Compared to the case where the curved portion of the fin 36a is displaced with the partition plate 33 in between.

したがって、内気通路３１に配置されたフィン３６ｂから外気通路３２に配置されたフィン３６ａに至る熱抵抗が小さくなるので、冷却装置、つまり二重壁構造部分での熱交換量を増大させることができる。   Accordingly, the heat resistance from the fins 36b arranged in the inside air passage 31 to the fins 36a arranged in the outside air passage 32 is reduced, so that the heat exchange amount in the cooling device, that is, the double wall structure portion can be increased. .

また、筐体２内の温度上昇に応じて内気ファン３５ａおよび外気ファン３５ｂの送風量を増大させるので、内気ファン３５ａおよび外気ファン３５ｂの消費動力（消費電力）が不必要に増大すること、および送風騒音が増大することを抑制できる。   Further, since the air volume of the inside air fan 35a and the outside air fan 35b is increased in accordance with the temperature rise in the housing 2, the power consumption (power consumption) of the inside air fan 35a and the outside air fan 35b is unnecessarily increased, and An increase in blowing noise can be suppressed.

また、内気ファン３５ａから吹き出された空気の流れ方向と熱交換部３６内の空気流れ方向は平行であり、また、熱交換部３６内の空気流れ方向と熱交換部３６から外気ファン３５ｂの吸い込み口までの空気流れ方向も平行であるため、熱交換部３６内の空気流れの低圧損化が可能である。   In addition, the flow direction of the air blown out from the inside air fan 35a is parallel to the direction of the air flow in the heat exchange unit 36, and the air flow direction in the heat exchange unit 36 and the suction of the outside air fan 35b from the heat exchange unit 36 are parallel to each other. Since the air flow direction to the mouth is also parallel, the low pressure loss of the air flow in the heat exchanging section 36 is possible.

（第２実施形態）
第１実施形態では、仕切板３３は単純な平板状であったが、本実施形態は、図７に示すように、仕切板３３を略矩形波状に形成したものである。 (Second Embodiment)
In the first embodiment, the partition plate 33 has a simple flat plate shape, but in this embodiment, the partition plate 33 is formed in a substantially rectangular wave shape as shown in FIG.

これにより、内気通路３１と外気通路３２とが交互に存在することとなるので、仕切板３３の表面積、つまり筐体２内の空気と筐体２外の空気との熱交換面積が増大する。   Thereby, since the inside air passage 31 and the outside air passage 32 are alternately present, the surface area of the partition plate 33, that is, the heat exchange area between the air inside the housing 2 and the air outside the housing 2 is increased.

したがって、冷却装置３が大型化することを抑制しつつ、筐体２内の空気と筐体２外の空気との熱交換量を増大させることができる。   Therefore, it is possible to increase the amount of heat exchange between the air inside the housing 2 and the air outside the housing 2 while suppressing an increase in the size of the cooling device 3.

（第３実施形態）
上述の実施形態では、空気の流通方向からフィン３６ａ、３６ｂを見たとき、フィン３６ｂは内気通路３１を塞ぐように内気通路３１の断面全域に配置され、フィン３６ａは外気通路３２を塞ぐように外気通路３２の断面全域に配置されていたが、本実施形態は、図８に示すように、フィン３６ａ、３６ｂを空気の流通方向において千鳥状に点在させたものである。 (Third embodiment)
In the above-described embodiment, when the fins 36 a and 36 b are viewed from the air flow direction, the fins 36 b are arranged over the entire cross section of the inside air passage 31 so as to close the inside air passage 31, and the fins 36 a so as to close the outside air passage 32. Although arranged in the entire cross-section of the outside air passage 32, in the present embodiment, as shown in FIG. 8, the fins 36a and 36b are interspersed in a staggered manner in the air flow direction.

これにより、空気の通路、つまり内気通路３１および外気通路３２の通路断面積を増大させることなく、空気の流通方向において、フィン３６ａ、３６ｂの総表面積を増大させながら、フィン３６ａ、３６ｂの増大に伴う圧力損失の増大を抑制できる。   This increases the fins 36a and 36b while increasing the total surface area of the fins 36a and 36b in the air flow direction without increasing the cross-sectional area of the air passage, that is, the inside air passage 31 and the outside air passage 32. The accompanying increase in pressure loss can be suppressed.

つまり、内気通路３１および外気通路３２の通路断面積を増大させることなく、フィン３６ａ、３６ｂの総表面積を増大させるには、フィン３６ａ、３６ｂが設けられている領域を空気の流通方向に拡大すればよいが、フィン３６ａ、３６ｂが設けられている領域を空気の流通方向に単純に拡大すると、内気通路３１および外気通路３２における通風抵抗が増大してしまう。   That is, in order to increase the total surface area of the fins 36a and 36b without increasing the cross-sectional areas of the inside air passage 31 and the outside air passage 32, the area where the fins 36a and 36b are provided is expanded in the air flow direction. However, if the area where the fins 36a and 36b are provided is simply enlarged in the air flow direction, the ventilation resistance in the inside air passage 31 and the outside air passage 32 increases.

しかし、本実施形態では、フィン３６ａ、３６ｂを空気の流通方向において千鳥状に点在させているので、内気通路３１および外気通路３２の通路断面積略全体がフィン３６ａ、３６ｂにより塞がれることなく、フィン３６ａ、３６ｂが存在しない領域が空気の流通方向において千鳥状に点在することとなる。   However, in the present embodiment, the fins 36a and 36b are interspersed in a staggered manner in the air flow direction, so that the entire passage cross-sectional areas of the inside air passage 31 and the outside air passage 32 are blocked by the fins 36a and 36b. In other words, the areas where the fins 36a and 36b do not exist are scattered in a staggered manner in the air flow direction.

したがって、空気の流通方向において、フィン３６ａ、３６ｂの総表面積を増大させながら、フィン３６ａ、３６ｂの増大に伴う圧力損失の増大を抑制できる。   Therefore, it is possible to suppress an increase in pressure loss accompanying an increase in the fins 36a and 36b while increasing the total surface area of the fins 36a and 36b in the air flow direction.

なお、本実施形態では、フィン３６ａ、３６ｂが存在しない領域の断面積が、フィン３６ａ、３６ｂが存在する領域における総空気通路断面積に略等しくなるように選定されている。   In the present embodiment, the cross-sectional area of the region where the fins 36a and 36b are not present is selected so as to be approximately equal to the total air passage cross-sectional area in the region where the fins 36a and 36b are present.

（第４実施形態）
第１〜３実施形態では、冷却装置３が筐体２の側面または前面の扉に装着されて内気通路３１および外気通路３２の長手方向が上下方向と一致していたが、本実施形態は、図９に示すように、冷却装置３を筐体２の上面に装着して内気通路３１および外気通路３２の長手方向が水平方向と一致するようにものである。 (Fourth embodiment)
In the first to third embodiments, the cooling device 3 is attached to the side or front door of the housing 2 and the longitudinal direction of the inside air passage 31 and the outside air passage 32 coincides with the vertical direction. As shown in FIG. 9, the cooling device 3 is mounted on the upper surface of the housing 2 so that the longitudinal directions of the inside air passage 31 and the outside air passage 32 coincide with the horizontal direction.

なお、内気ファン３５ａおよび外気ファン３５ｂの回転軸は、内気通路３１および外気通路３２の長手方向と直交するので、本実施形態では、内気ファン３５ａおよび外気ファン３５ｂの回転軸は、鉛直方向（上下方向）と一致する。   Since the rotation axes of the inside air fan 35a and the outside air fan 35b are orthogonal to the longitudinal directions of the inside air passage 31 and the outside air passage 32, in this embodiment, the rotation axes of the inside air fan 35a and the outside air fan 35b are in the vertical direction (up and down Direction).

（第５実施形態）
第１〜４実施形態では、内気ファン３５ａおよび外気ファン３５ｂとして遠心ファンを採用したが、本実施形態は、図１０に示すように、内気ファン３５ａおよび外気ファン３５ｂとして、空気が回転軸方向を通り抜ける軸流ファン（ＪＩＳ Ｂ ０１３２番号１０１２等参照）を採用したものである。 (Fifth embodiment)
In the first to fourth embodiments, centrifugal fans are employed as the inside air fan 35a and the outside air fan 35b. However, in the present embodiment, as shown in FIG. 10, the air has a rotational axis direction as the inside air fan 35a and the outside air fan 35b. An axial fan that passes through (see JIS B 0132 number 1012 etc.) is used.

（第６実施形態）
第１〜５実施形態では、内気通路３１を流れる筐体２内の空気と外気通路３２を流れる筐体２外の空気とは対向流れとなっていたが、本実施形態は、図１１に示すように、内気通路３１を流れる筐体２内の空気と外気通路３２を流れる筐体２外の空気とが同一の向きに流れる並行流れとしたものである。 (Sixth embodiment)
In the first to fifth embodiments, the air in the housing 2 flowing through the inside air passage 31 and the air outside the housing 2 flowing through the outside air passage 32 are opposed to each other, but this embodiment is shown in FIG. As described above, the air in the housing 2 flowing through the inside air passage 31 and the air outside the housing 2 flowing through the outside air passage 32 are parallel flows that flow in the same direction.

なお、図１１では内気ファン３５ａおよび外気ファン３５ｂとして軸流ファンが描かれているが、本実施形態は、これに限定されるものではなく、例えば遠心ファンを採用してもよい。   In FIG. 11, axial fans are depicted as the inside air fan 35a and the outside air fan 35b. However, the present embodiment is not limited to this, and for example, a centrifugal fan may be adopted.

（第７実施形態）
第１〜５実施形態では、筐体２内の空気は内気ファン３５ａに吸引された後に熱交換部３６に流入し、一方、筐体２外の空気は熱交換部３６を通過した後に外気ファン３５ｂに吸引されていたが、本実施形態は、図１２に示すように、筐体２内の空気は熱交換部３６を通過した後に内気ファン３５ａに吸引され、一方、筐体２外の空気は外気ファン３５ｂに吸引された後に熱交換部３６に流入するようになっている。 (Seventh embodiment)
In the first to fifth embodiments, the air in the housing 2 flows into the heat exchanging unit 36 after being sucked by the internal air fan 35 a, while the air outside the housing 2 passes through the heat exchanging unit 36 and then the outdoor air fan In this embodiment, as shown in FIG. 12, the air in the housing 2 is sucked into the inside air fan 35a after passing through the heat exchanging portion 36, while the air outside the housing 2 is Is sucked into the outside air fan 35b and then flows into the heat exchanging section 36.

これに伴い、内気ファン３５ａの一部あるいは全部が、熱交換部３６における筐体２内部側の端面よりもさらに筐体２内部側に張り出した位置に配置される。一方、外気ファン３５ｂは、筐体２外部側への張り出しがなくなっている。   Accordingly, a part or all of the inside air fan 35a is arranged at a position that protrudes further to the inside of the housing 2 than the end surface of the heat exchange unit 36 on the inside of the housing 2. On the other hand, the outside air fan 35b does not protrude to the outside of the housing 2.

（その他の実施形態）
上述の実施形態では、内気通路３１に配置されたフィン３６ｂのフィンピッチと外気通路３２に配置されたフィン３６ａのフィンピッチとを等しくして、内気通路３１に配置されたフィン３６ｂと外気通路３２に配置されたフィン３６ａとを仕切板３３を挟んで線対称としたが、本発明はこれに限定されるもものではなく、例えば、内気通路３１に配置されたフィン３６ｂのフィンピッチを外気通路３２に配置されたフィン３６ａのフィンピッチの整数倍として、両フィン３６ａ、３６ｂの湾曲部が仕切板３３を挟んで同位置に配置されるようにする、または両フィン３６ａ、３６ｂの湾曲部が仕切板３３を挟んでずれるようにする等してもよい。 (Other embodiments)
In the above-described embodiment, the fin pitch of the fins 36 b arranged in the inside air passage 31 is equal to the fin pitch of the fins 36 a arranged in the outside air passage 32, and the fin 36 b arranged in the inside air passage 31 and the outside air passage 32. However, the present invention is not limited to this. For example, the fin pitch of the fins 36b arranged in the inside air passage 31 is set to the outside air passage. The curved portions of the fins 36a and 36b are arranged at the same position across the partition plate 33, or the curved portions of the fins 36a and 36b are For example, the partition plate 33 may be displaced.

また、上述の実施形態では、フィン３６ａ、３６ｂとして、コルゲートフィンを採用したが、本発明はこれに限定されるものではない。   Moreover, in the above-mentioned embodiment, although the corrugated fin was employ | adopted as the fins 36a and 36b, this invention is not limited to this.

また、上述の実施形態では、冷却装置３が筐体２と別体であったが、本発明はこれに限定されるものではなく、例えば筐体２を構成する壁部材を筐体２内の空気が流れる内気通路３１および筐体２外の空気が流れる外気通路３２とからなる二重壁構造として、この二重壁構造部分で筐体２内の空気と筐体２外の空気とを熱交換して筐体２内の熱、つまり通信機器１で発生した熱を筐体２外に放熱するようにしてもよい。   Further, in the above-described embodiment, the cooling device 3 is separate from the housing 2, but the present invention is not limited to this, and for example, a wall member constituting the housing 2 is provided in the housing 2. As a double wall structure comprising an inside air passage 31 through which air flows and an outside air passage 32 through which air outside the housing 2 flows, the air inside the housing 2 and the air outside the housing 2 are heated by this double wall structure portion. The heat in the housing 2, that is, the heat generated in the communication device 1 may be radiated to the outside of the housing 2 by replacement.

また、上述の実施形態では、シール手段としてメカニカルシール部３５ｈを採用したが、本発明はこれに限定されるものではなく、例えばリップシール等の回転シャフト３５ｆの外周面に接触して隙間を密閉するものを採用してもよい。   In the above-described embodiment, the mechanical seal portion 35h is employed as the sealing means. However, the present invention is not limited to this, and the gap is sealed by contacting the outer peripheral surface of the rotary shaft 35f such as a lip seal. You may adopt what to do.

また、上述の実施形態では、回転シャフト３５ｆが仕切板３３を貫通していたが、本発明はこれに限定されるものではなく、例えば貫通穴３５ｇを廃止して磁力にて動力を伝達するマグネットカップリングを採用してもよい。   In the above-described embodiment, the rotary shaft 35f penetrates the partition plate 33. However, the present invention is not limited to this. For example, the magnet that transmits power by magnetic force by eliminating the through hole 35g. Coupling may be employed.

また、上述の実施形態では、モータ３５ｃが内気通路３１に配置されていたが、本発明はこれに限定されるものではなく、例えばモータ３５ｃを外気通路３２に配置する、またはモータ３５ｃを仕切板３３の位置に配置してモータ３５ｃそのものにて内気通路３１と外気通路３２とを仕切ってもよい。   In the above-described embodiment, the motor 35c is disposed in the inside air passage 31, but the present invention is not limited to this. For example, the motor 35c is disposed in the outside air passage 32, or the motor 35c is disposed in the partition plate. The internal air passage 31 and the external air passage 32 may be partitioned by the motor 35c itself at the position 33.

また、上述の実施形態では、内気ファン３５ａと外気ファン３５ｂとは、モータ３５ｃを内気通路３１内に配置した状態で仕切板３３を挟んで同軸状に配置されていたが、本発明はこれに限定されるものではない。   Further, in the above-described embodiment, the inside air fan 35a and the outside air fan 35b are arranged coaxially with the partition plate 33 sandwiched in a state where the motor 35c is arranged in the inside air passage 31, but the present invention is not limited thereto. It is not limited.

また、上述の実施形態では、モータ３５ｃの軸方向一端側に内気ファン３５ａが配置され、軸方向他端側に外気ファン３５ｂが配置されていたが、本発明はこれに限定されるものではなく、例えばモータ３５ｃの軸方向一端側または他端側のいずれか一方のみに内気ファン３５ａと外気ファン３５ｂと配置してもよい。   Further, in the above-described embodiment, the internal air fan 35a is disposed on one axial end side of the motor 35c and the external air fan 35b is disposed on the other axial end side. However, the present invention is not limited to this. For example, the inside air fan 35a and the outside air fan 35b may be disposed only on one end side or the other end side of the motor 35c in the axial direction.

また、本発明は、特許請求の範囲に記載された発明の趣旨に合致するものではればよく、上述の実施形態に限定されるものではない。   Further, the present invention is not limited to the above-described embodiment as long as it conforms to the gist of the invention described in the claims.

本発明の第１実施形態に係る冷却装置を装着した状態を示す外観図である。It is an external view which shows the state which mounted | wore the cooling device which concerns on 1st Embodiment of this invention. 本発明の第１実施形態に係る冷却装置を筐体と反対側から見た外観斜視図である。It is the external appearance perspective view which looked at the cooling device concerning a 1st embodiment of the present invention from the opposite side to a case. 本発明の第１実施形態に係る冷却装置を筐体側から見た外観斜視図である。It is the external appearance perspective view which looked at the cooling device concerning a 1st embodiment of the present invention from the case side. 本発明の第１実施形態に係る冷却装置の構造を示す断面模式図である。It is a cross-sectional schematic diagram which shows the structure of the cooling device which concerns on 1st Embodiment of this invention. 本発明の第１実施形態に係る送風機の構造を示す断面模式図である。It is a cross-sectional schematic diagram which shows the structure of the air blower concerning 1st Embodiment of this invention. 本発明の第１実施形態に係る熱交換部の構造を示す断面模式図である。It is a cross-sectional schematic diagram which shows the structure of the heat exchange part which concerns on 1st Embodiment of this invention. 本発明の第２実施形態に係る熱交換部の構造を示す斜視図である。It is a perspective view which shows the structure of the heat exchange part which concerns on 2nd Embodiment of this invention. 本発明の第３実施形態に係る熱交換部の構造を示す断面図である。It is sectional drawing which shows the structure of the heat exchange part which concerns on 3rd Embodiment of this invention. 本発明の第４実施形態における冷却装置を装着した状態を示す外観図である。It is an external view which shows the state which mounted | wore the cooling device in 4th Embodiment of this invention. 本発明の第５実施形態に係る冷却装置の構造を示す断面模式図である。It is a cross-sectional schematic diagram which shows the structure of the cooling device which concerns on 5th Embodiment of this invention. 本発明の第６実施形態に係る冷却装置の構造を示す断面模式図である。It is a cross-sectional schematic diagram which shows the structure of the cooling device which concerns on 6th Embodiment of this invention. 本発明の第７実施形態に係る冷却装置の構造を示す断面模式図である。It is a cross-sectional schematic diagram which shows the structure of the cooling device which concerns on 7th Embodiment of this invention. 従来の技術に係る冷却装置の構造を示す断面模式図である。It is a cross-sectional schematic diagram which shows the structure of the cooling device which concerns on a prior art.

符号の説明Explanation of symbols

３…冷却装置、３１…内気通路、３２…外気通路、３３…仕切板、
３５ａ…内気ファン、３５ｂ…外気ファン、３５ｃ…モータ。 3 ... Cooling device, 31 ... Inside air passage, 32 ... Outside air passage, 33 ... Partition plate,
35a ... Inside air fan, 35b ... Outside air fan, 35c ... Motor.

Claims (12)

発熱体（１）が収納された筐体（２）内の空気が流れる内気通路（３１）と前記筐体（２）外の空気が流れる外気通路（３２）とを仕切部材（３３）で仕切り、前記仕切部材（３３）に接合されて熱交換を促進するフィン（３６ａ、３６ｂ）を前記内気通路（３１）内および前記外気通路（３２）内に設け、前記内気通路（３１）を流れる空気と前記外気通路（３２）を流れる空気とを前記仕切部材（３３）および前記フィン（３６ａ、３６ｂ）を介して熱交換させる熱交換部（３６）と、
前記内気通路（３１）内に配置され、空気を循環させる内気ファン（３５ａ）と、
前記外気通路（３２）内に配置され、空気を循環させる外気ファン（３５ｂ）と、
前記内気ファン（３５ａ）および前記外気ファン（３５ｂ）は、遠心力で空気を外径方向に吹き出す遠心式ファンであり、
軸方向一端側に前記内気ファン（３５ａ）が配置され、軸方向他端側に前記外気ファン（３５ｂ）が配置され、前記内気ファン（３５ａ）および前記外気ファン（３５ｂ）からなる１組の送風ファンを回転させる１台のモータ（３５ｃ）とを備え、
前記内気通路（３１）および前記外気通路（３２）は、互いに平行に並んで延びており、
前記熱交換部（３６）は、前記内気通路（３１）および前記外気通路（３２）の長手方向の両端部側に配置され、
前記内気ファン（３５ａ）および前記外気ファン（３５ｂ）は、前記内気通路（３１）および前記外気通路（３２）の長手方向の中央部に配置されるとともに、前記仕切部材（３３）を挟んで同軸上に配置され、
前記内気通路（３１）の空気導入口（３１ａ）は、前記内気通路（３１）の長手方向の中央部に設けられ、
前記内気通路（３１）の空気排出口（３１ｂ）は、前記内気通路（３１）の長手方向の両端部に設けられ、
前記外気通路（３２）の空気導入口（３２ａ）は、前記外気通路（３２）の長手方向の両端部に設けられ、
前記外気通路（３２）の空気排出口（３２ｂ）は、前記外気通路（３２）の長手方向の中央部に設けられ、
前記外気ファン（３５ｂ）の一部が、前記熱交換部（３６）に対して前記筐体（２）の外部側に張り出した位置に配置されており、
前記熱交換部（３６）から前記外気ファン（３５ｂ）の吸込口までの通路が形成されており、
前記内気ファン（３５ａ）にて循環される空気は、前記内気ファン（３５ａ）を通過した後、前記内気通路（３１）を通って前記熱交換部（３６）に流入し、
前記外気ファン（３５ｂ）にて循環される空気は、前記熱交換部（３６）を通過した後、前記外気通路（３２）を通って前記外気ファン（３５ｂ）に流入することを特徴とする冷却装置。 A partition member (33) divides the inside air passage (31) through which the air inside the housing (2) in which the heating element (1) is housed flows and the outside air passage (32) through which the air outside the housing (2) flows. The fins (36a, 36b) joined to the partition member (33) to promote heat exchange are provided in the inside air passage (31) and the outside air passage (32), and the air flowing through the inside air passage (31) And a heat exchange part (36) for exchanging heat between the air flowing through the outside air passage (32) via the partition member (33) and the fins (36a, 36b),
An inside air fan (35a) which is arranged in the inside air passage (31) and circulates air;
An outside air fan (35b) disposed in the outside air passage (32) and circulating air;
The inside air fan (35a) and the outside air fan (35b) are centrifugal fans that blow out air in the outer diameter direction by centrifugal force,
The inside air fan (35a) is disposed on one end side in the axial direction, the outside air fan (35b) is disposed on the other end side in the axial direction, and a set of air blows including the inside air fan (35a) and the outside air fan (35b). One motor (35c) for rotating the fan,
The inside air passage (31) and the outside air passage (32) extend in parallel with each other,
The heat exchange part (36) is disposed on both end sides in the longitudinal direction of the inside air passage (31) and the outside air passage (32),
The inside air fan (35a) and the outside air fan (35b) are arranged in the center in the longitudinal direction of the inside air passage (31) and the outside air passage (32), and are sandwiched between the partition members (33). Placed on the axis ,
The air introduction port (31a) of the inside air passage (31) is provided at the center in the longitudinal direction of the inside air passage (31),
Air discharge ports (31b) of the inside air passage (31) are provided at both ends in the longitudinal direction of the inside air passage (31),
Air inlets (32a) of the outside air passage (32) are provided at both ends in the longitudinal direction of the outside air passage (32),
The air discharge port (32b) of the outside air passage (32) is provided at the center in the longitudinal direction of the outside air passage (32),
A part of the outside air fan (35b) is arranged at a position protruding to the outside of the housing (2) with respect to the heat exchange part (36),
A passage from the heat exchange part (36) to the suction port of the outside air fan (35b) is formed,
The air circulated by the inside air fan (35a) passes through the inside air fan (35a) and then flows through the inside air passage (31) into the heat exchange part (36).
The air circulated in the outside air fan (35b) passes through the heat exchange part (36) and then flows into the outside air fan (35b) through the outside air passage (32). apparatus. 発熱体（１）が収納された筐体（２）内の空気が流れる内気通路（３１）と前記筐体（２）外の空気が流れる外気通路（３２）とを仕切部材（３３）で仕切り、前記仕切部材（３３）に接合されて熱交換を促進するフィン（３６ａ、３６ｂ）を前記内気通路（３１）内および前記外気通路（３２）内に設け、前記内気通路（３１）を流れる空気と前記外気通路（３２）を流れる空気とを前記仕切部材（３３）および前記フィン（３６ａ、３６ｂ）を介して熱交換させる熱交換部（３６）と、
前記内気通路（３１）内に配置され、空気を循環させる内気ファン（３５ａ）と、
前記外気通路（３２）内に配置され、空気を循環させる外気ファン（３５ｂ）と、
前記内気ファン（３５ａ）および前記外気ファン（３５ｂ）は、遠心力で空気を外径方向に吹き出す遠心式ファンであり、
軸方向一端側に前記内気ファン（３５ａ）が配置され、軸方向他端側に前記外気ファン（３５ｂ）が配置され、前記内気ファン（３５ａ）および前記外気ファン（３５ｂ）からなる１組の送風ファンを回転させる１台のモータ（３５ｃ）とを備え、
前記内気通路（３１）および前記外気通路（３２）は、互いに平行に並んで延びており、
前記熱交換部（３６）は、前記内気通路（３１）および前記外気通路（３２）の長手方向の両端部側に配置され、
前記内気ファン（３５ａ）および前記外気ファン（３５ｂ）は、前記内気通路（３１）および前記外気通路（３２）の長手方向の中央部に配置されるとともに、前記仕切部材（３３）を挟んで同軸上に配置され、
前記内気通路（３１）の空気導入口（３１ａ）は、前記内気通路（３１）の長手方向の両端部に設けられ、
前記内気通路（３１）の空気排出口（３１ｂ）は、前記内気通路（３１）の長手方向の中央部に設けられ、
前記外気通路（３２）の空気導入口（３２ａ）は、前記外気通路（３２）の長手方向の中央部に設けられ、
前記内気ファン（３５ａ）の一部が、前記熱交換部（３６）に対して前記筐体（２）の内部側に張り出した位置に配置されており、
前記熱交換部（３６）から前記内気ファン（３５ａ）の吸込口までの通路が形成されており、
前記外気通路（３２）の空気排出口（３２ｂ）は、前記外気通路（３２）の長手方向の両端部に設けられ、
前記内気ファン（３５ａ）にて循環される空気は、前記熱交換部（３６）を通過した後、前記内気通路（３１）を通って前記内気ファン（３５ａ）に流入し、
前記外気ファン（３５ｂ）にて循環される空気は、前記外気ファン（３５ｂ）を通過した後、前記外気通路（３２）を通って前記熱交換部（３６）に流入することを特徴とする冷却装置。 A partition member (33) divides the inside air passage (31) through which the air inside the housing (2) in which the heating element (1) is housed flows and the outside air passage (32) through which the air outside the housing (2) flows. The fins (36a, 36b) joined to the partition member (33) to promote heat exchange are provided in the inside air passage (31) and the outside air passage (32), and the air flowing through the inside air passage (31) And a heat exchange part (36) for exchanging heat between the air flowing through the outside air passage (32) via the partition member (33) and the fins (36a, 36b),
An inside air fan (35a) which is arranged in the inside air passage (31) and circulates air;
An outside air fan (35b) disposed in the outside air passage (32) and circulating air;
The inside air fan (35a) and the outside air fan (35b) are centrifugal fans that blow out air in the outer diameter direction by centrifugal force,
The inside air fan (35a) is disposed on one end side in the axial direction, the outside air fan (35b) is disposed on the other end side in the axial direction, and a set of air blows including the inside air fan (35a) and the outside air fan (35b). One motor (35c) for rotating the fan,
The inside air passage (31) and the outside air passage (32) extend in parallel with each other,
The heat exchange part (36) is disposed on both end sides in the longitudinal direction of the inside air passage (31) and the outside air passage (32),
The inside air fan (35a) and the outside air fan (35b) are arranged in the center in the longitudinal direction of the inside air passage (31) and the outside air passage (32), and are sandwiched between the partition members (33). Placed on the axis ,
Air inlets (31a) of the inside air passage (31) are provided at both ends in the longitudinal direction of the inside air passage (31),
The air discharge port (31b) of the inside air passage (31) is provided at the longitudinal center of the inside air passage (31),
The air introduction port (32a) of the outside air passage (32) is provided at a longitudinal center of the outside air passage (32),
A part of the inside air fan (35a) is disposed at a position protruding to the inside of the housing (2) with respect to the heat exchange part (36),
A passage from the heat exchanging part (36) to the suction port of the inside air fan (35a) is formed,
Air discharge ports (32b) of the outside air passage (32) are provided at both ends in the longitudinal direction of the outside air passage (32),
The air circulated by the inside air fan (35a) flows through the inside air passage (31) into the inside air fan (35a) after passing through the heat exchanging portion (36),
The air circulated in the outside air fan (35b) passes through the outside air fan (35b), and then flows into the heat exchange section (36) through the outside air passage (32). apparatus. 前記モータ（３５ｃ）は、前記仕切部材（３３）より前記内気通路（３１）側に配置されていることを特徴とする請求項１または２に記載の冷却装置。 The cooling device according to claim 1 or 2 , wherein the motor (35c) is disposed closer to the inside air passage (31) than the partition member (33). 前記仕切部材（３３）には、前記外気ファン（３５ｂ）を回転させる回転シャフト（３５ｆ）が貫通する貫通穴（３５ｇ）が設けられており、
さらに、前記貫通穴（３５ｇ）と前記回転シャフト（３５ｆ）との隙間を密閉するシール手段（３５ｈ）を有していることを特徴とする請求項１ないし３のいずれか１つに記載の冷却装置。 The partition member (33) is provided with a through hole (35g) through which a rotating shaft (35f) for rotating the outside air fan (35b) passes,
The cooling according to any one of claims 1 to 3 , further comprising sealing means (35h) for sealing a gap between the through hole (35g) and the rotary shaft (35f). apparatus. 前記シール手段（３５ｈ）は、前記貫通穴（３５ｇ）と前記回転シャフト（３５ｆ）との隙間を迷路構造化したメカニカルシールにより構成されていることを特徴とする請求項
４に記載の冷却装置。 The said sealing means (35h) is comprised by the mechanical seal which made the labyrinth structure the clearance gap between the said through-hole (35g) and the said rotating shaft (35f).
4. The cooling device according to 4 . 前記仕切部材（３３）は、アルミニウムを主成分とする金属製であることを特徴とする請求項１ないし５のいずれか１つに記載の冷却装置。 The cooling device according to any one of claims 1 to 5 , wherein the partition member (33) is made of a metal mainly composed of aluminum. 前記フィン（３６ａ、３６ｂ）は、多数個の湾曲部とこの湾曲部間を繋ぐ繋ぎ部を有するように波状に形成されおり、
さらに、前記内気通路（３１）に配置された前記フィン（３６ａ）の前記湾曲部と前記外気通路（３２）に配置された前記フィン（３６ｂ）の前記湾曲部とは、前記仕切部材（３３）を挟んで同位置にて前記仕切部材（３３）に接合されていることを特徴とする請求項１ないし７のいずれか１つに記載の冷却装置。 The fins (36a, 36b) are formed in a wave shape so as to have a large number of curved portions and connecting portions connecting the curved portions,
Furthermore, the curved portion of the fin (36a) disposed in the inside air passage (31) and the curved portion of the fin (36b) disposed in the outside air passage (32) are the partition member (33). The cooling device according to any one of claims 1 to 7 , wherein the cooling device is joined to the partition member (33) at the same position across the wall. 前記内気通路（３１）に配置された前記フィン（３６ａ）と前記外気通路（３２）に配置された前記フィン（３６ｂ）とは、同一のピッチ寸法を有するコルゲートフィンであることを特徴とする請求項７に記載の冷却装置。 The fin (36a) disposed in the inside air passage (31) and the fin (36b) disposed in the outside air passage (32) are corrugated fins having the same pitch dimension. Item 8. The cooling device according to Item 7 . 前記仕切部材（３３）は、矩形波状に形成されていることを特徴とする請求項１ないし８のいずれか１つに記載の冷却装置。 The cooling device according to any one of claims 1 to 8 , wherein the partition member (33) is formed in a rectangular wave shape. 前記内気通路（３１）流入する空気の温度上昇に応じて前記内気ファン（３５ａ）および前記外気ファン（３５ｂ）の送風量を増大させる制御手段を備えることを特徴とする請求項１ないし９のいずれか１つに記載の冷却装置。 The control device according to any one of claims 1 to 9 , further comprising control means for increasing an air flow rate of the inside air fan (35a) and the outside air fan (35b) in accordance with a temperature rise of the air flowing into the inside air passage (31). The cooling device according to any one of the above. 前記内気ファン（３５ａ）を通過して前記内気通路（３１）を流れる空気の流れ方向と、前記熱交換部（３６）内の空気の流れ方向が、平行であることを特徴とする請求項１に記載の冷却装置。 The flow direction of air flowing through the internal air passage (31) through the internal air fan (35a) and the flow direction of air in the heat exchange section (36) are parallel to each other. The cooling device according to 1. 前記熱交換部（３６）を通過して前記外気通路（３２）を流れる空気の流れ方向と、前記熱交換部（３６）内の空気の流れ方向が、平行であることを特徴とする請求項１または１１に記載の冷却装置。 The flow direction of air passing through the heat exchange section (36) and flowing through the outside air passage (32) is parallel to the flow direction of air in the heat exchange section (36). The cooling device according to 1 or 11 .
JP2004043200A 2003-10-24 2004-02-19 Cooling system Expired - Fee Related JP4403823B2 (en)

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