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JP5331598B2 - Air conditioner - Google Patents

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JP5331598B2
JP5331598B2 JP2009158156A JP2009158156A JP5331598B2 JP 5331598 B2 JP5331598 B2 JP 5331598B2 JP 2009158156 A JP2009158156 A JP 2009158156A JP 2009158156 A JP2009158156 A JP 2009158156A JP 5331598 B2 JP5331598 B2 JP 5331598B2
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shutter
cooling fan
opening
air
closing
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JP2011012613A (en
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健児 登坂
哲 遠藤
章夫 森田
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Fuji Furukawa Engineering and Construction Co Ltd
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Description

本発明は空調装置に関するものであり、特に、複数台の熱交換器及び冷却ファンの運転台数を負荷需要に応じて増減する空調装置に関するものである。   The present invention relates to an air conditioner, and more particularly to an air conditioner that increases or decreases the number of operating heat exchangers and cooling fans according to load demand.

従来、複数台の熱交換器を収納する筐体に、該複数台熱交換器と各々対応する通気窓を設けるとともに、該各通気窓に筐体内の空気を外部に排出する冷却ファンをそれぞれ設置し、かつ、熱交換器及び冷却ファンの運転台数を負荷に応じて制御する空調装置は知られている(例えば、特許文献1参照)。   Conventionally, a housing that houses a plurality of heat exchangers is provided with a ventilation window corresponding to each of the plurality of heat exchangers, and a cooling fan that exhausts the air in the housing to the outside is installed in each ventilation window. And the air conditioner which controls the operation number of a heat exchanger and a cooling fan according to load is known (for example, refer patent document 1).

このような空調装置は、熱交換器及び冷却ファンの運転台数の制御により負荷変動への対応と省エネルギー運転とが可能になる。   Such an air conditioner can cope with load fluctuations and save energy by controlling the number of operating heat exchangers and cooling fans.

特開2000−283051号公報。JP 2000-283051 A.

上述した従来の空調装置は、負荷の需要に応じて熱交換器及び冷却ファンの運転台数の制御を行い、該負荷の変動に対応している。しかしながら、このような台数制御では、運転している冷却ファンが筐体内にマイナスの圧力(負圧)を発生させ、該負圧が停止している冷却ファンの箇所に外気を筐体の内部に吸い込む逆流現象を発生させる。その結果、熱交換風量が減少して空調装置の能力低下及びエネルギーロスが生じるという問題点があった。また、該逆流現象は、停止している冷却ファンに逆回転を起こさせ、該冷却ファンが台数制御によって起動した時に過剰トルクが発生して、該冷却ファン及び電動機が破損するという問題点があった。   The above-described conventional air conditioner controls the number of operating heat exchangers and cooling fans according to the load demand, and copes with the load fluctuation. However, in such a unit control, the cooling fan that is operating generates a negative pressure (negative pressure) in the casing, and outside air is introduced into the casing at the location of the cooling fan where the negative pressure is stopped. Generates a reverse flow phenomenon. As a result, there has been a problem that the heat exchange air volume is reduced and the capacity of the air conditioner is reduced and energy loss occurs. In addition, the reverse flow phenomenon causes reverse rotation of the stopped cooling fan, and when the cooling fan is started by unit control, excessive torque is generated and the cooling fan and the motor are damaged. It was.

そこで、台数制御で停止している冷却ファンの箇所に発生する逆流現象を無くして熱交換風量の損失を防ぎ、かつ、冷却ファンと電動機の故障を防ぎ、高効率で安定した熱交換を実現して省エネルギー化に寄与するために解決すべき技術的課題が生じてくるのであり、本発明はこの課題を解決することを目的とする。   Therefore, the backflow phenomenon that occurs at the cooling fan that is stopped by unit control is eliminated to prevent loss of heat exchange airflow, and failure of the cooling fan and motor is prevented, realizing highly efficient and stable heat exchange. Therefore, a technical problem to be solved in order to contribute to energy saving arises, and the present invention aims to solve this problem.

本発明は上記目的を達成するために提案されたものであり、請求項1記載の発明は、複数台の熱交換器を収納する筐体に、前記複数台の熱交換器と各々対応する複数の通気窓を設けるとともに、該通気窓に前記筐体内の空気を外部に排出する冷却ファンをそれぞれ設置し、かつ、負荷に応じて前記冷却ファンの運転台数を制御する空調装置であって、
前記各通気窓に、前記冷却ファンの運転・停止に連動して該通気窓を開閉するシャッターを設け、
前記シャッターは、前記通気窓を覆って前記冷却ファンの外側に設けた空調装置において、
前記シャッターは、矩形状のシャッター枠体と該シャッター枠体に取り付けられた回転軸と該回転軸に一体的に取り付けられたか回転翼片と該シャッター枠体に取り付けられた駆動部とで構成されて成るとともに、
前記シャッターには回転翼片の回転を、閉方向に規制する閉側ストッパーと開方向に規制する開側ストッパーとが設けられて成り、
前記シャッターの開度を熱交換器のインバータ制御に連動して調整することができるように構成した空調装置を提供する。
The present invention has been proposed in order to achieve the above object, and the invention according to claim 1 is a plurality of heat exchangers corresponding to the plurality of heat exchangers, respectively, in a housing that houses the plurality of heat exchangers. provided with ventilation windows, installed a cooling fan for discharging the housing of the air vent Kimado outside respectively, and meet the air conditioning apparatus for controlling the number of operating the cooling fan in response to the load,
Each of the ventilation windows is provided with a shutter that opens and closes the ventilation window in conjunction with the operation / stop of the cooling fan,
In the air conditioner provided on the outside of the cooling fan, the shutter covers the ventilation window ,
The shutter is composed of a rectangular shutter frame, a rotating shaft attached to the shutter frame, a rotating blade piece integrally attached to the rotating shaft or a driving unit attached to the shutter frame. And
The shutter is provided with a closing stopper that restricts the rotation of the rotating blade piece in the closing direction and an opening stopper that restricts the rotation in the opening direction.
Provided is an air conditioner configured so that the opening degree of the shutter can be adjusted in conjunction with inverter control of a heat exchanger .

この構成によれば、ファン台数制御で停止している冷却ファンが設置されている箇所の通気窓はシャッターで閉じられ、通気が遮断される。したがって、筐体内が負圧になっても該通気窓から外気が筐体内に取り込まれることがなくなる。また、ファン台数制御または全ての運転休止によって冷却ファンの一部または全てが停止しているとき、該停止している冷却ファンはそれぞれ外側からシャッターで覆われて保護される。
そして、シャッターは、矩形状のシャッター枠体と該シャッター枠体に取り付けられた回転軸と該回転軸に一体的に取り付けられたか回転翼片と該シャッター枠体に取り付けられた駆動部とで構成されて成るとともに、前記シャッターには回転翼片の回転を、閉方向に規制する閉側ストッパーと開方向に規制する開側ストッパーを擁するので、シャッターが全開、半開、前閉の態様に操作できるとともに、これ等シャッターの開度を熱交換器のインバータ制御に連動して調整するこができるものである。
According to this configuration, the ventilation window at the location where the cooling fan stopped by the number-of-fans control is installed is closed by the shutter, and ventilation is blocked. Therefore, even if the inside of the housing becomes negative pressure, outside air is not taken into the housing from the ventilation window. Further, when some or all of the cooling fans are stopped by controlling the number of fans or stopping all operations, the stopped cooling fans are each covered with a shutter from the outside and protected.
The shutter is composed of a rectangular shutter frame, a rotating shaft attached to the shutter frame, a rotating blade piece integrally attached to the rotating shaft, and a drive unit attached to the shutter frame. In addition, the shutter has a closing stopper that restricts the rotation of the rotary blade piece in the closing direction and an opening stopper that restricts the rotation in the opening direction, so that the shutter can be operated in a fully open, half-open, and pre-closed manner. At the same time, the opening of these shutters can be adjusted in conjunction with inverter control of the heat exchanger.

請求項2記載の発明は、複数台の熱交換器を収納する筐体に、前記複数台の熱交換器と各々対応する複数の通気窓を設けるとともに、該通気窓に前記筐体内の空気を外部に排出する冷却ファンをそれぞれ設置し、かつ、負荷に応じて前記冷却ファンの運転台数を制御
する空調装置であって、
前記各通気窓に、前記冷却ファンの運転・停止に連動して該通気窓を開閉するシャッターを設け、
前記シャッターは、矩形状のシャッター枠体と該シャッター枠体に取り付けられた回転軸と該回転軸に一体的に取り付けられたか回転翼片と該シャッター枠体に取り付けられた駆動部とで構成されて成るとともに、
前記シャッターには回転翼片の回転を、閉方向に規制する閉側ストッパーと開方向に規制する開側ストッパーとが設けられて成り、
前記シャッターの開度を前記筐体内の負圧に応じて調整制御することができるように構成して成り、
前記シャッターは、前記通気窓を覆って前記冷却ファンの外側に、格子状のカバーを介して設けられて成る空調装置を提供する。
According to a second aspect of the present invention, a plurality of ventilation windows respectively corresponding to the plurality of heat exchangers are provided in a casing housing a plurality of heat exchangers, and air in the casing is supplied to the ventilation windows. a cooling fan that discharges to the outside is installed respectively, and meet the air conditioning apparatus for controlling the number of operating the cooling fan in response to the load,
Each of the ventilation windows is provided with a shutter that opens and closes the ventilation window in conjunction with the operation / stop of the cooling fan,
The shutter is composed of a rectangular shutter frame, a rotating shaft attached to the shutter frame, a rotating blade piece integrally attached to the rotating shaft or a driving unit attached to the shutter frame. And
The shutter is provided with a closing stopper that restricts the rotation of the rotating blade piece in the closing direction and an opening stopper that restricts the rotation in the opening direction.
The shutter opening is configured to be adjustable and controlled according to the negative pressure in the housing ,
The shutter provides an air conditioner that covers the ventilation window and is provided outside the cooling fan via a lattice-like cover .

この構成によれば、シャッターの開度を筐体内の負圧に応じて調整できる。また、シャッターは、矩形状のシャッター枠体と該シャッター枠体に取り付けられた回転軸と該回転軸に一体的に取り付けられたか回転翼片と該シャッター枠体に取り付けられた駆動部とで構成されて成るとともに、前記シャッターには回転翼片の回転を、閉方向に規制する閉側ストッパーと開方向に規制する開側ストッパーを擁するので、シャッターが全開、半開、前閉の態様に操作することができる。 According to this configuration, the opening degree of the shutter can be adjusted according to the negative pressure in the housing. The shutter includes a rectangular shutter frame, a rotating shaft attached to the shutter frame, a rotating blade piece integrally attached to the rotating shaft, and a drive unit attached to the shutter frame. In addition, the shutter includes a closing stopper that restricts the rotation of the rotating blade piece in the closing direction and an opening stopper that restricts the rotation in the opening direction, so that the shutter is operated in a fully open, half-open, and pre-closed manner. be able to.

この構成によれば、ファン台数制御または全ての運転休止によって冷却ファンの一部または全てが停止しているとき、該停止している冷却ファンはそれぞれ外側からシャッターで覆われて保護される。   According to this configuration, when some or all of the cooling fans are stopped by controlling the number of fans or stopping all operations, the stopped cooling fans are each covered with a shutter from the outside and protected.

請求項1記載の発明は、ファン台数制御で停止している冷却ファンが設置されている箇所の通気窓はシャッターにより閉じられ、通気を遮断するようにしておくので、停止している冷却ファンが設置されている箇所での空気の逆流現象は起きることがなく、外気を筐体内に吸い込むことによって発生する熱交換風量の減少を防ぐことができる。また、停止している冷却ファンの逆回転が無く、起動時の過剰トルクによる該冷却ファン及び電動機の破損を防ぐことができる。これにより、高効率で安定した熱交換が可能になり、省エネルギー化に寄与する効果が期待できる。   According to the first aspect of the present invention, since the ventilation window at the place where the cooling fan stopped by the number control of the fans is installed is closed by the shutter so as to block the ventilation, The backflow phenomenon of air does not occur at the place where it is installed, and it is possible to prevent a reduction in the amount of heat exchange air generated by sucking outside air into the housing. Further, there is no reverse rotation of the cooling fan that is stopped, and it is possible to prevent the cooling fan and the motor from being damaged due to excessive torque during startup. Thereby, highly efficient and stable heat exchange becomes possible, and an effect contributing to energy saving can be expected.

また、この発明によればファン台数制御または全運転休止によって冷却ファンに一部または全てが停止しているとき、停止している冷却ファンの外側をシャッターで覆って保護しておくことができるので、特に、寒冷地等では停止時における冷却ファンの凍結や雪の侵入を防止することができ、また、寒冷地以外でも外部からのゴミ等の侵入を防止することができる。
そして、シャッターは、矩形状のシャッター枠体と該シャッター枠体に取り付けられた回転軸と該回転軸に一体的に取り付けられたか回転翼片と該シャッター枠体に取り付けられた駆動部とで構成されて成るとともに、前記シャッターには回転翼片の回転を、閉方向に規制する閉側ストッパーと開方向に規制する開側ストッパーを擁するので、シャッターが全開、半開、全閉の態様に操作できるとともに、これ等シャッターの開度を熱交換器のインバータ制御に連動して調整するこができるので、シャッターの開度を、熱交換器の度合いに相応して細かく調整制御自動制御することができ空調装置の利便性を向上させることができる。
Further, according to the present invention, when a part or all of the cooling fans are stopped by controlling the number of fans or stopping all operations, the outside of the stopped cooling fans can be covered and protected. In particular, it is possible to prevent the cooling fan from freezing and snow from entering when it is stopped in a cold region, and to prevent entry of dust and the like from outside even in a cold region.
The shutter is composed of a rectangular shutter frame, a rotating shaft attached to the shutter frame, a rotating blade piece integrally attached to the rotating shaft, and a drive unit attached to the shutter frame. In addition, the shutter includes a closing stopper that restricts the rotation of the rotating blade piece in the closing direction and an opening stopper that restricts the rotation in the opening direction, so that the shutter can be operated in a fully open, half open, or fully closed state. At the same time, since the shutter opening can be adjusted in conjunction with the inverter control of the heat exchanger, the shutter opening can be finely adjusted and controlled automatically according to the degree of the heat exchanger. The convenience of the air conditioner can be improved.

請求項2記載の発明は、シャッターの開度を筐体内の負圧に応じて調整することができるので、前記請求項1に記載の発明の効果に加えて、負荷または筐体内の負圧に応じてシャッターの開度を細かく制御することができる。併せて、請求項1に記載の発明同様、ファン台数制御または全運転休止によって冷却ファンに一部または全てが停止している場合停止している冷却ファンの外側をシャッターで覆って保護しておくことができるので、特に、寒冷地等では停止時における冷却ファンの凍結や雪の侵入を防止することができ、また、寒冷地以外でも外部からのゴミ等の侵入を防止することができるという効果を期待することができる。
そして、シャッターは、矩形状のシャッター枠体と該シャッター枠体に取り付けられた回転軸と該回転軸に一体的に取り付けられたか回転翼片と該シャッター枠体に取り付けられた駆動部とで構成されて成るとともに、前記シャッターには回転翼片の回転を、閉方向に規制する閉側ストッパーと開方向に規制する開側ストッパーを擁するので、シャッターが全開、半開、全閉の態様に操作できるとともに、前記シャッターの開度を前記筐体内の負圧に応じて調整制御することができるように構成して成るところ、シャッターの開度を筐体内の負圧に応じて細かく調整制御することができるから、空調装置の利便性を向上させることができ、且つ、シャッターは、前記通気窓を覆って前記冷却ファンの外側に、格子状のカバーを介して設けられているので、ゴミや塵を防ぐ除塵機能に資することができる。








According to the second aspect of the present invention, since the opening degree of the shutter can be adjusted according to the negative pressure in the casing, in addition to the effect of the invention of the first aspect, the load or the negative pressure in the casing can be adjusted. Accordingly, the opening of the shutter can be finely controlled. At the same time, as in the first aspect of the invention, when a part or all of the cooling fans are stopped by controlling the number of fans or stopping all operations, the outside of the stopped cooling fans is covered with a shutter to protect them. Therefore, it is possible to prevent freezing of the cooling fan and intrusion of snow at the time of stoppage, particularly in cold districts, and to prevent entry of dust etc. from outside even in cold districts. Can be expected.
The shutter is composed of a rectangular shutter frame, a rotating shaft attached to the shutter frame, a rotating blade piece integrally attached to the rotating shaft, and a drive unit attached to the shutter frame. In addition, the shutter includes a closing stopper that restricts the rotation of the rotating blade piece in the closing direction and an opening stopper that restricts the rotation in the opening direction, so that the shutter can be operated in a fully open, half open, or fully closed state. together, where made to constitute the opening of the shutter to be able to adjust the control in response to negative pressure in the housing, it is finely adjusted controlled in accordance with the shutter opening the negative pressure in the housing Therefore, the convenience of the air conditioner can be improved, and the shutter is provided on the outside of the cooling fan so as to cover the ventilation window through a lattice-shaped cover. Because there, it can contribute to dust removal function to prevent dirt and dust.








本発明の一実施例を示す図であり、シャッターを閉じた状態で示す空調装置の概略外観斜視図。It is a figure which shows one Example of this invention, and is a general | schematic external appearance perspective view of the air conditioner shown in the state which closed the shutter. 本発明の実施例を示す図であり、シャッターを筐体から分離させた状態で示す空調装置の概略外観斜視図。It is a figure which shows the Example of this invention, and is a schematic external appearance perspective view of the air conditioner shown in the state which isolate | separated the shutter from the housing | casing. 図1のA−A線に相当する部分の概略断面図で、シャッターを全閉にした状態で示す図。It is a schematic sectional drawing of the part corresponded to the AA line of FIG. 1, and is a figure shown in the state which fully closed the shutter. 図1のA−A線に相当する部分の概略断面図で、シャッターを半開にした状態で示す図。FIG. 2 is a schematic cross-sectional view of a portion corresponding to the line AA in FIG. 1, showing the shutter halfway open. 図1のA−A線に相当する部分の概略断面図で、シャッターを全開にした状態で示す図。FIG. 2 is a schematic cross-sectional view of a portion corresponding to line AA in FIG. 1, showing the shutter fully open. 本発明の実施例におけるシャッターの動作説明図。Explanatory drawing of the operation | movement of the shutter in the Example of this invention.

本発明は、台数制御で停止している冷却ファンの箇所に発生する逆流現象を無くして熱交換風量の損失を防ぎ、かつ、冷却ファンと電動機の故障を防ぎ、高効率で安定した熱交換を実現して省エネルギー化に寄与するという目的を達成するために、複数台の熱交換器を収納する筐体に、前記複数台の熱交換器と各々対応する複数の通気窓を設けるとともに、該各通気窓に前記筐体内の空気を外部に排出する冷却ファンをそれぞれ設置し、かつ、負荷に応じて前記冷却ファンの運転台数を制御する空調装置において、前記各通気窓に、前記冷却ファンの運転・停止に連動して該通気窓を開閉するシャッターを設けたことによ
り実現した。
The present invention eliminates the backflow phenomenon that occurs at the location of cooling fans that are stopped by unit control, prevents loss of heat exchange airflow, prevents failure of the cooling fan and motor, and achieves highly efficient and stable heat exchange. In order to achieve the purpose of realizing and contributing to energy saving, a housing for housing a plurality of heat exchangers is provided with a plurality of ventilation windows respectively corresponding to the plurality of heat exchangers, In the air conditioner that installs cooling fans for discharging the air in the casing to the outside in the ventilation window and controls the number of the cooling fans to be operated according to the load, the cooling fan is operated in each ventilation window. -Realized by providing a shutter that opens and closes the ventilation window in conjunction with stopping.

以下、本発明の空調装置について、好適な実施例を添付図面を参照しつつ説明する。図1及び図2は本発明に係る空調装置を示す。以下の説明において、図1の上下方向を上下として説明する。   Hereinafter, preferred embodiments of the air conditioner of the present invention will be described with reference to the accompanying drawings. 1 and 2 show an air conditioner according to the present invention. In the following description, the vertical direction in FIG.

図1及び図2において、この空調装置11は、熱交換器(図示せず)を4台備えた大型冷凍機であり、枠体12で直方体形状に形成された筐体13の上面には、前記熱交換器と各々対応する4個の通気窓14,14,14,14がそれぞれ格子状のカバー15,15,15,15で覆われて設けられている。また、該各通気窓14,14,14,14内には、図3乃至図4に示すようにそれぞれ冷却ファン16が設置されている。   1 and 2, this air conditioner 11 is a large refrigerator having four heat exchangers (not shown). On the upper surface of a casing 13 formed in a rectangular parallelepiped shape with a frame body 12, Four ventilation windows 14, 14, 14, 14 respectively corresponding to the heat exchangers are provided so as to be covered with lattice-shaped covers 15, 15, 15, 15, respectively. Further, cooling fans 16 are respectively installed in the ventilation windows 14, 14, 14, and 14 as shown in FIGS.

そして、該筐体13では、冷却ファン16,16,16,16が駆動されると、前後面及び側面側から外気が吸い込まれて熱交換器を通過して該熱交換器を熱交換により冷却し、かつ、暖かくなった空気が通気窓14,14,14,14を通って上方に吹き出される構造になっている。また、ここでの冷却ファン16,16,16,16及び熱交換器は、負荷に応じて台数が選択される。すなわち、負荷が少ない場合は1台の冷却ファン16とこれに対応した1台の熱交換器が運転され、負荷が大きくなるに従って2台の冷却ファン16,16とこれに対応した2台の熱交換器と順に増加し、最大では4台の冷却ファン16,16,16,16とこれに対応した4台の熱交換器が運転される。   When the cooling fans 16, 16, 16, 16 are driven in the housing 13, outside air is sucked from the front and rear surfaces and the side surfaces, passes through the heat exchanger, and cools the heat exchanger by heat exchange. In addition, the heated air is blown upward through the ventilation windows 14, 14, 14, 14. The number of the cooling fans 16, 16, 16, 16 and the heat exchanger here is selected according to the load. That is, when the load is small, one cooling fan 16 and one heat exchanger corresponding to the cooling fan 16 are operated, and as the load increases, the two cooling fans 16 and 16 and the two heats corresponding thereto are operated. It increases in order with the exchanger, and at the maximum, four cooling fans 16, 16, 16, 16 and four heat exchangers corresponding thereto are operated.

一方、筐体13の上面外側には、前記カバー15を含めて前記通気窓14の外側全体を覆うようにして、各通気窓14,14,14,14を個々に開閉することが可能なシャッター17,17,17,17が取り付けられている。   On the other hand, on the outer side of the upper surface of the housing 13, a shutter capable of individually opening and closing each ventilation window 14, 14, 14, 14 so as to cover the entire outside of the ventilation window 14 including the cover 15. 17, 17, 17, 17 are attached.

前記各シャッター17,17,17,17は、図3〜図5に示すように、矩形状のシャッター枠体18と、該シャッター枠体18に回転自在に取り付けられた回転軸19,19,19,19と、該各回転軸19,19,19,19に一体に取り付けられた回転翼片20,20,20,20と、シャッター枠体18の外側に取り付けられた駆動部21等により構成されている。また、シャッター枠体18の内面には、図3〜図5に示すように前記回転翼片20,20,20,20の閉方向への回転を規制する閉側ストッパー22,22,22,22と、開方向への回転を規制する開側ストッパー23,23,23,23がそれぞれ設けられている(図6に詳細に示す)。   As shown in FIGS. 3 to 5, each of the shutters 17, 17, 17, 17 includes a rectangular shutter frame 18 and rotary shafts 19, 19, 19 rotatably attached to the shutter frame 18. , 19, rotating blade pieces 20, 20, 20, 20 integrally attached to the respective rotary shafts 19, 19, 19, 19, a drive unit 21 attached to the outside of the shutter frame 18, and the like. ing. Further, on the inner surface of the shutter frame 18, as shown in FIGS. 3 to 5, closed-side stoppers 22, 22, 22, 22 that restrict the rotation of the rotary blade pieces 20, 20, 20, 20 in the closing direction. Opening stoppers 23, 23, 23, 23 for restricting rotation in the opening direction are provided (shown in detail in FIG. 6).

そして、該各シャッター17は、冷却ファン16が停止している状態においては、回転翼片20の自重により閉方向に回転し、図3に示すように回転翼片20が閉側ストッパー22と当接するまで各回転軸19,19,19,19が時計回り方向に回転されると全閉状態となり、通気窓14を全閉に保持する。   Each shutter 17 rotates in the closing direction by its own weight when the cooling fan 16 is stopped, and the rotating blade piece 20 contacts the closing stopper 22 as shown in FIG. When the rotary shafts 19, 19, 19, 19 are rotated clockwise until they come into contact with each other, the fully closed state is established, and the ventilation window 14 is held fully closed.

一方、図4及び図5に示すように冷却ファン16が駆動している状態においては、回転翼片20が風圧によって押し上げられて各回転軸19,19,19を反時計回り方向に回転させると、各回転翼片20,20,20,20が該回転軸19,19,19,19と一体に回転する。また、各回転翼片20,20,20,20が開側ストッパー23,23,23,23と当接した図5に示す位置まで回転されると全開状態になる。なお、図4は回転翼片20,20,20,20が半開位置で回転された状態を示す。また、各回転翼片20,20,20,20が開いている状態で、駆動部21が時計回り方向に回転されると、シャッター17を全閉方向に操作することができる。   On the other hand, when the cooling fan 16 is driven as shown in FIGS. 4 and 5, when the rotary blade piece 20 is pushed up by the wind pressure to rotate the rotary shafts 19, 19, 19 counterclockwise. The rotary blade pieces 20, 20, 20, 20 rotate integrally with the rotary shafts 19, 19, 19, 19. Further, when each rotary blade piece 20, 20, 20, 20 is rotated to the position shown in FIG. 5 in contact with the open side stoppers 23, 23, 23, 23, the rotor blades are fully opened. FIG. 4 shows a state where the rotary blade pieces 20, 20, 20, 20 are rotated in the half-open position. Further, when the drive unit 21 is rotated in the clockwise direction in a state where the rotary blade pieces 20, 20, 20, 20 are open, the shutter 17 can be operated in the fully closed direction.

なお、該シャッター17,17,17,17を開閉する駆動部21,21,21,21の駆動
は、冷却ファン16,16,16,16の運転・停止に連動しており、冷却ファン16が駆動されると該冷却ファン16に対応している駆動部21,21,21,21が回転翼片20,20,20,20を回転軸19,19,19,19と共に開方向に駆動させてシャッター17を開き、該冷却ファン16の運転が停止されると該冷却ファン16に対応している駆動部21,21,21,21が回転翼片20,20,20,20を回転軸19,19,19,19と共に閉方向に駆動させてシャッター17を閉じる。また、各シャッター17は、熱交換器のインバータ制御等に連動してシャッター開度を任意に調整することができる構造になっている。
The driving units 21, 21, 21, and 21 that open and close the shutters 17, 17, 17, and 17 are linked to the operation / stop of the cooling fans 16, 16, 16, and 16, and the cooling fan 16 When driven, the drive parts 21, 21, 21, 21 corresponding to the cooling fan 16 drive the rotary blade pieces 20, 20, 20, 20 together with the rotary shafts 19, 19, 19, 19 in the opening direction. When the shutter 17 is opened and the operation of the cooling fan 16 is stopped, the drive units 21, 21, 21, 21 corresponding to the cooling fan 16 move the rotary blade pieces 20, 20, 20, 20 to the rotary shaft 19, 19, 19 and 19 are driven in the closing direction to close the shutter 17. Each shutter 17 has a structure in which the shutter opening can be arbitrarily adjusted in conjunction with inverter control of the heat exchanger or the like.

したがって、本実施例の構造による空調装置によれば、冷却ファン16,16,16,16の台数制御で停止している冷却ファンが設置されている箇所の通気窓14はシャッター17で閉じられて通気が遮断されるので、停止している冷却ファン16が設置されている箇所での空気の逆流現象は無くなり、外気との熱交換風量の減少を防ぐことができる。これにより、高効率な熱交換が可能となり、省エネルギー化に寄与する。   Therefore, according to the air conditioner having the structure of the present embodiment, the ventilation window 14 at the location where the cooling fan stopped by the number control of the cooling fans 16, 16, 16, 16 is installed is closed by the shutter 17. Since the ventilation is cut off, the backflow phenomenon of air at the place where the cooling fan 16 is stopped is eliminated, and the reduction of the amount of heat exchange with the outside air can be prevented. This enables highly efficient heat exchange and contributes to energy saving.

また、シャッター17の開度を負荷または筐体内の負圧に応じて調整することができるので、負荷または筐体内の負圧に応じてシャッター17の開度を細かく調整制御することができる。   Moreover, since the opening degree of the shutter 17 can be adjusted according to the load or the negative pressure in the casing, the opening degree of the shutter 17 can be finely adjusted and controlled according to the load or the negative pressure inside the casing.

さらに、冷却ファンの台数制御または全運転休止によって冷却ファン16,16,16,16の一部または全てが停止しているとき、停止している冷却ファンの外側はシャッター17で覆って保護しておくことができるので、特に寒冷地等では停止時における冷却ファンの凍結や雪の侵入を防止することができ、また、寒冷地以外でも外部からのゴミ等の侵入を防止することができることになる。   Further, when some or all of the cooling fans 16, 16, 16, 16 are stopped by controlling the number of cooling fans or stopping all operations, the outside of the stopped cooling fans is covered and protected by the shutter 17. Therefore, it is possible to prevent the cooling fan from freezing and snow from entering when it is stopped, especially in cold regions, and to prevent the entry of dust from outside even in cold regions. .

なお、本発明は、本発明の精神を逸脱しない限り種々の改変を為すことができ、そして、本発明が該改変されたものに及ぶことは当然である。   It should be noted that the present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified ones.

本発明は冷却塔のファン台数制御にも、逆流防止装置として応用することができる。   The present invention can also be applied as a backflow prevention device to control the number of cooling tower fans.

11 空調装置
12 枠体
13 筐体
14 通気窓
15 カバー
16 冷却ファン
17 シャッター
18 シャッター枠体
19 回転軸
20 回転翼片
21 駆動部
22 閉側ストッパー
23 開側ストッパー
DESCRIPTION OF SYMBOLS 11 Air conditioner 12 Frame 13 Case 14 Ventilation window 15 Cover 16 Cooling fan 17 Shutter 18 Shutter frame 19 Rotating shaft 20 Rotor blade piece 21 Drive part 22 Closed side stopper 23 Opened side stopper

Claims (2)

複数台の熱交換器を収納する筐体に、前記複数台の熱交換器と各々対応する複数の通気窓を設けるとともに、該通気窓に前記筐体内の空気を外部に排出する冷却ファンをそれぞれ設置し、かつ、負荷に応じて前記冷却ファンの運転台数を制御する空調装置であって、前記各通気窓に、前記冷却ファンの運転・停止に連動して該通気窓を開閉するシャッターを設け、
前記シャッターは、前記通気窓を覆って前記冷却ファンの外側に設けた空調装置において、
前記シャッターは、矩形状のシャッター枠体と該シャッター枠体に取り付けられた回転軸と該回転軸に一体的に取り付けられた回転翼片と該シャッター枠体に取り付けられた駆動部とで構成されて成るとともに、
前記シャッターには回転翼片の回転を、閉方向に規制する閉側ストッパーと開方向に規制する開側ストッパーとが設けられて成り、
前記シャッターの開度を熱交換器のインバータ制御に連動して調整することができるように構成したことを特徴とする空調装置
A plurality of ventilation windows respectively corresponding to the plurality of heat exchangers are provided in a casing that houses the plurality of heat exchangers, and cooling fans that exhaust the air in the casing to the outside are provided in the ventilation windows, respectively. installed, and meet the air conditioning apparatus for controlling the number of operating the cooling fan in response to a load, said each air introduction window is provided with a shutter for opening and closing the vent Kimado in conjunction with the operation and stop of the cooling fan ,
In the air conditioner provided on the outside of the cooling fan, the shutter covers the ventilation window ,
The shutter includes a rectangular shutter frame, a rotating shaft attached to the shutter frame, a rotating blade piece integrally attached to the rotating shaft, and a drive unit attached to the shutter frame. And
The shutter is provided with a closing stopper that restricts the rotation of the rotating blade piece in the closing direction and an opening stopper that restricts the rotation in the opening direction.
An air conditioner configured to adjust the opening of the shutter in conjunction with inverter control of a heat exchanger .
複数台の熱交換器を収納する筐体に、前記複数台の熱交換器と各々対応する複数の通気窓を設けるとともに、該通気窓に前記筐体内の空気を外部に排出する冷却ファンをそれぞれ設置し、かつ、負荷に応じて前記冷却ファンの運転台数を制御する空調装置であって、前記各通気窓に、前記冷却ファンの運転・停止に連動して該通気窓を開閉するシャッターを設けた空調装置において
前記シャッターは、矩形状のシャッター枠体と該シャッター枠体に取り付けられた回転軸と該回転軸に一体的に取り付けられた回転翼片と該シャッター枠体に取り付けられた駆動部とで構成されて成るとともに、
前記シャッターには回転翼片の回転を、閉方向に規制する閉側ストッパーと開方向に規制する開側ストッパーとが設けられて成り、
前記シャッターの開度を前記筐体内の負圧に応じて調整制御することができるように構成して成り、
前記シャッターは、前記通気窓を覆って前記冷却ファンの外側に、格子状のカバーを介して設けられて成ることを特徴とする空調装置。
A plurality of ventilation windows respectively corresponding to the plurality of heat exchangers are provided in a casing that houses the plurality of heat exchangers, and cooling fans that exhaust the air in the casing to the outside are provided in the ventilation windows, respectively. installed, and meet the air conditioning apparatus for controlling the number of operating the cooling fan in response to a load, said each air introduction window is provided with a shutter for opening and closing the vent Kimado in conjunction with the operation and stop of the cooling fan In the air conditioner
The shutter includes a rectangular shutter frame, a rotating shaft attached to the shutter frame, a rotating blade piece integrally attached to the rotating shaft, and a drive unit attached to the shutter frame. And
The shutter is provided with a closing stopper that restricts the rotation of the rotating blade piece in the closing direction and an opening stopper that restricts the rotation in the opening direction.
The shutter opening is configured to be adjustable and controlled according to the negative pressure in the housing ,
The air-conditioning apparatus according to claim 1, wherein the shutter is provided outside the cooling fan through a lattice-like cover so as to cover the ventilation window.
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