JP4956288B2 - Panel heat exchanger - Google Patents

Panel heat exchanger Download PDF

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JP4956288B2
JP4956288B2 JP2007150698A JP2007150698A JP4956288B2 JP 4956288 B2 JP4956288 B2 JP 4956288B2 JP 2007150698 A JP2007150698 A JP 2007150698A JP 2007150698 A JP2007150698 A JP 2007150698A JP 4956288 B2 JP4956288 B2 JP 4956288B2
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panel
heat exchanger
air
intake
temperature sensor
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JP2008306820A (en
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隆 北川
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河村電器産業株式会社
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Description

本発明は、配電盤やキャビネットラック等の機器収納盤の内部に設置される盤用熱交換器に関する。   The present invention relates to a panel heat exchanger installed inside an equipment storage panel such as a switchboard or cabinet rack.

熱を発生する電気部品や電子機器を収納する機器収納盤では、盤内の温度分布が不均一になりやすい。例えば、配電盤では発熱量の多い電気部品の周辺温度が局部的に高くなり、キャビネットラックではラック内部の上部と下部とで温度差が発生する。そこで、従来、機器収納盤の内部に熱交換器を設置して、盤内空気の温度を一定値以下に管理する技術が提案されている。   In a device storage panel that stores electrical components and electronic devices that generate heat, the temperature distribution in the panel tends to be uneven. For example, in a switchboard, the ambient temperature of an electrical component that generates a large amount of heat is locally high, and in a cabinet rack, a temperature difference occurs between the upper part and the lower part inside the rack. Therefore, conventionally, a technique has been proposed in which a heat exchanger is installed inside the equipment storage board, and the temperature of the air in the board is managed to a certain value or less.

例えば、図５に示すように、特許文献１に記載された盤用熱交換器５１は、盤内空気を吸入する吸気口５２の近傍にサーモスタット５３を設け、吸気口５２近傍の温度が一定値を越えたときに、吸気ファン５４を回転し、吸気ファン５４を通過した空気を放熱ユニット５５で盤外空気と熱交換して、機器収納盤Ｐの内部温度を一定温度以下に管理するように構成されている。
特開２０００−３３７７４４号公報 For example, as shown in FIG. 5, the panel heat exchanger 51 described in Patent Document 1 is provided with a thermostat 53 in the vicinity of the air inlet 52 that sucks air in the panel, and the temperature in the vicinity of the air inlet 52 is a constant value. When the temperature exceeds the upper limit, the intake fan 54 is rotated, and the air passing through the intake fan 54 is heat-exchanged with the outside air by the heat radiating unit 55 so that the internal temperature of the equipment storage panel P is managed to be a predetermined temperature or less. It is configured.
JP 2000-337744 A

従来の盤用熱交換器５１は、盤内の高温空気が吸気口５２付近まで上昇したときに、吸気ファン５４を動作させることができる。しかし、機器の配列状態によっては、高温空気が吸気口５２に到達せずに、特定の領域に滞る場合がある。こうした場合、従来の熱交換器５１では、吸気ファン５４が動作しないため、盤内の温度分布に著しい違いが生じ、機器の動作環境が悪化するという問題点があった。   The conventional panel heat exchanger 51 can operate the intake fan 54 when the high-temperature air in the panel rises to the vicinity of the intake port 52. However, depending on the arrangement state of the devices, the high-temperature air may not reach the intake port 52 and stay in a specific area. In such a case, in the conventional heat exchanger 51, since the intake fan 54 does not operate, there is a problem that a significant difference occurs in the temperature distribution in the panel and the operating environment of the device is deteriorated.

本発明の目的は、盤内の高温空気を集中的に熱交換し、盤内の温度分布を早期に均一化し、機器の動作環境を適正に管理できる盤用熱交換器を提供することにある。   An object of the present invention is to provide a panel heat exchanger capable of intensively exchanging high-temperature air in the panel, uniforming the temperature distribution in the panel at an early stage, and appropriately managing the operating environment of the device. .

上記課題を解決するために、本発明は、機器収納盤内の空気を吸気口から吸気ファンを通して放熱ユニットに取り込む盤用熱交換器において、吸気口に可動ルーバーを設け、盤内各部の温度を赤外線温度センサで計測し、赤外線温度センサの出力に基づいて所定温度以上の高温域を探知し、高温域の空気が吸気口に向かうように、可動ルーバーの向きを制御する手段を備えたことを特徴とする。   In order to solve the above-mentioned problems, the present invention provides a panel heat exchanger that takes air in a device storage panel from a suction port through a suction fan into a heat radiating unit, and a movable louver is provided in the suction port to control the temperature of each part in the panel. Measured with an infrared temperature sensor, based on the output of the infrared temperature sensor, detected a high temperature range above a predetermined temperature, and equipped with means to control the direction of the movable louver so that the air in the high temperature range was directed to the intake port Features.

ここで、赤外線温度センサが盤内のほぼ全域から高温域を的確に探知できるように、赤外線温度センサを放熱ユニットの筺体に揺動可能に取り付けるのが好ましい。また、赤外線温度センサを可動ルーバーに取り付けることで、センサ専用の揺動機構を省略することもできる。   Here, it is preferable that the infrared temperature sensor is swingably attached to the housing of the heat radiating unit so that the infrared temperature sensor can accurately detect the high temperature range from almost the entire area of the panel. Further, by attaching the infrared temperature sensor to the movable louver, a swing mechanism dedicated to the sensor can be omitted.

熱交換効率を高める観点からは、吸気ファンを通過した空気を回動ルーバーにより放熱ユニットに向けて放散または拡散させる構成を好ましく採用できる。より好ましくは、放熱ユニットの排気を盤内に排出する排気ファンと、排気ファンを通過した空気を盤内に向けて放散または拡散させる揺動ルーバーとを備えた構成を採用できる。   From the viewpoint of improving the heat exchange efficiency, it is possible to preferably employ a configuration in which the air that has passed through the intake fan is diffused or diffused toward the heat radiating unit by the rotating louver. More preferably, a configuration including an exhaust fan that exhausts the exhaust of the heat radiating unit into the panel and a swing louver that diffuses or diffuses air that has passed through the exhaust fan into the panel can be employed.

本発明の盤用熱交換器によれば、赤外線温度センサを用いて高温域を探し出し、可動ルーバーにより高温域の空気を集中的かつ強制的に吸気口に向わせるので、機器の配列状態に係りなく、盤内空気の温度分布を早期に均一化して、機器の動作環境を常に適正に管理できるという効果がある。   According to the heat exchanger for a panel of the present invention, the infrared temperature sensor is used to search for a high temperature region, and the air in the high temperature region is intensively and forcibly directed to the intake port by the movable louver. Regardless, there is an effect that the temperature distribution of the air in the panel can be made uniform at an early stage, and the operating environment of the device can always be properly managed.

以下、本発明の一実施形態を図面に基づいて説明する。図１は機器収納盤の内部に設置される盤用熱交換器１の外観を示し、図２はこの熱交換器１の内部構造と赤外線温度センサ１９の取付形態とを示す。図３（ａ）は熱交換器１の吸気ファン９と放熱ユニット１１の配置形態を示し、図３（ｂ）は放熱ユニット１１と排気ファン１０の配置形態を示す。図４は図２とは異なる赤外線温度センサ２３の取付形態を示す。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows an external appearance of a panel heat exchanger 1 installed inside the equipment storage panel, and FIG. 2 shows an internal structure of the heat exchanger 1 and a mounting form of the infrared temperature sensor 19. FIG. 3A shows an arrangement form of the intake fan 9 and the heat radiating unit 11 of the heat exchanger 1, and FIG. 3B shows an arrangement form of the heat radiating unit 11 and the exhaust fan 10. FIG. 4 shows a mounting form of the infrared temperature sensor 23 different from FIG.

図１、図２に示すように、盤用熱交換器１の筺体２は四角箱形に形成され、機器収納盤Ｐの内部に設置される。筺体２の上部外面には盤内空気Ａを吸入する吸気口３が設けられ、筺体２の下部外面に熱交換後の空気（冷気Ｃ）を盤内に排出する排気口４が設けられている。吸気口３には吸気側可動ルーバー５がモータ６により上下に揺動可能に設けられ、排気口４に排気側可動ルーバー７がモータ８により上下に揺動可能に設けられている。   As shown in FIGS. 1 and 2, the housing 2 of the panel heat exchanger 1 is formed in a square box shape and installed inside the equipment storage panel P. An intake port 3 for sucking in-panel air A is provided on the upper outer surface of the housing 2, and an exhaust port 4 for discharging air (cold air C) after heat exchange into the panel is provided on the lower outer surface of the housing 2. . An intake side movable louver 5 is provided at the intake port 3 so as to be swingable up and down by a motor 6, and an exhaust side movable louver 7 is provided at the exhaust port 4 so as to be swingable up and down by a motor 8.

筺体２の内部において、吸気口３の背後には吸気ファン９が設置され、排気口４の背後に排気ファン１０が設置されている。両方のファン９，１０の背後には放熱ユニット１１が設置され、盤内空気Ａが吸気口３から吸気ファン９を通して放熱ユニット１１に取り込まれる。放熱ユニット１１には、吸気ファン９に対向する吸気面１２と、盤内空気Ａを盤外空気Ｂと熱交換する多数の放熱フィン（図示略）と、排気ファン１０に対向する排気面１３とが設けられている。   Inside the housing 2, an intake fan 9 is installed behind the intake port 3, and an exhaust fan 10 is installed behind the exhaust port 4. A heat radiating unit 11 is installed behind both the fans 9 and 10, and the air A in the panel is taken into the heat radiating unit 11 from the air inlet 3 through the air intake fan 9. The heat radiating unit 11 includes an intake surface 12 that faces the intake fan 9, a large number of radiating fins (not shown) that exchange heat between the inside air A and the outside air B, and an exhaust surface 13 that faces the exhaust fan 10. Is provided.

図３（ａ）に示すように、吸気ファン９の吹出面には回動ルーバー１５がモータ１６により左右に回動可能に設けられ、吸気ファン９を通過した盤内空気Ａを放熱ユニット１１の吸気面１２に向けて放散させる。排気ファン１０の吹出面には揺動ルーバー１７がモータ１８により左右に揺動可能に設けられ、排気ファン１０を通過した冷気Ｃを排気口４（図２参照）から盤内に向けて放散させるようになっている。   As shown in FIG. 3 (a), a rotation louver 15 is provided on the air outlet surface of the intake fan 9 so as to be rotatable left and right by a motor 16. Dissipate toward the intake surface 12. A swing louver 17 is provided on the blowout surface of the exhaust fan 10 so as to be swingable left and right by a motor 18, and cool air C that has passed through the exhaust fan 10 is diffused from the exhaust port 4 (see FIG. 2) toward the inside of the panel. It is like that.

図２に示すように、筺体２の上部には、盤内各部の温度を計測する赤外線温度センサ１９がモータ２０により上下に揺動可能に取り付けられている。筺体２の内部には、熱交換器１の全体を制御するコントローラ２１が設置されている。そして、コントローラ２１が赤外線温度センサ１９の出力に基づいて盤内の高温域を探知し、高温域の空気が吸気口３に向かうように、吸気側可動ルーバー５の向きを制御するように構成されている。   As shown in FIG. 2, an infrared temperature sensor 19 for measuring the temperature of each part in the panel is attached to the upper part of the housing 2 so as to be swingable up and down by a motor 20. A controller 21 that controls the entire heat exchanger 1 is installed inside the housing 2. The controller 21 detects the high temperature region in the panel based on the output of the infrared temperature sensor 19 and controls the direction of the intake side movable louver 5 so that the air in the high temperature region is directed to the intake port 3. ing.

次に、上記のように構成された盤用熱交換器１の動作について説明する。この熱交換器１に電源が投入されると、赤外線温度センサ１９が上下に揺動（スイング）して盤内全域を走査し、盤内各部の赤外線量を感知して温度を計測する。盤内温度の平均値が例えば４０℃以上になると、吸気ファン９および排気ファン１０が回転を始め、盤内空気Ａが吸気口３から吸気ファン９を通って放熱ユニット１１に取り込まれる。   Next, the operation of the panel heat exchanger 1 configured as described above will be described. When the heat exchanger 1 is turned on, the infrared temperature sensor 19 swings up and down (scans), scans the entire area of the panel, senses the amount of infrared rays in each part of the panel, and measures the temperature. When the average value of the panel internal temperature becomes 40 ° C. or more, for example, the intake fan 9 and the exhaust fan 10 start rotating, and the panel internal air A is taken into the heat radiating unit 11 from the intake port 3 through the intake fan 9.

赤外線温度センサ１９はファン９，１０の回転中も揺動を続け、盤内の赤外線量をコントローラ２１に出力する。コントローラ２１は赤外線量の分布状況を調べ、所定温度以上の高温域を探知したときに、吸気側可動ルーバー５がその高温域を向くようにモータ６を制御する。これにより、高温域の空気が集中的かつ強制的に吸気口３に吸引されたのち、放熱ユニット１１に取り込まれる。このとき、放熱ユニット１１の排気（冷気Ｃ）が吸気流に混入しない方向へ排出されるように、排気側可動ルーバー７の角度が制御される。   The infrared temperature sensor 19 continues to swing while the fans 9 and 10 are rotating, and outputs the amount of infrared rays in the panel to the controller 21. The controller 21 checks the distribution state of the amount of infrared rays, and controls the motor 6 so that the intake side movable louver 5 faces the high temperature region when a high temperature region of a predetermined temperature or higher is detected. As a result, air in a high temperature region is intensively and forcibly sucked into the air inlet 3 and then taken into the heat radiating unit 11. At this time, the angle of the exhaust side movable louver 7 is controlled so that the exhaust (cold air C) of the heat radiating unit 11 is discharged in a direction not mixed in the intake air flow.

放熱ユニット１１の吸気側では、吸気ファン９を通過した盤内空気Ａが回動ルーバー１５によって放熱ユニット１１の幅方向に拡散され、撹拌流となって吸気面１２の全域から放熱ユニット１１の内部に吸入される。そして、放熱ユニット１１の内部において、盤内空気Ａが回転しながら放熱フィンにランダムに接触し、盤外空気Ｂと効率よく熱交換された後に、排気面１３から排気ファン１０側に排出される。このため、従来と比較し、放熱ユニット１１をより小型に構成することができる。   On the intake side of the heat radiating unit 11, the in-panel air A that has passed through the intake fan 9 is diffused in the width direction of the heat radiating unit 11 by the rotating louver 15 and becomes a stirring flow from the entire area of the air intake surface 12 to the inside of the heat radiating unit 11. Inhaled. Inside the heat radiating unit 11, the air A inside the panel rotates at random, contacts the heat radiating fins, and is efficiently heat-exchanged with the air B outside the board, and then is discharged from the exhaust surface 13 to the exhaust fan 10 side. . For this reason, compared with the past, the thermal radiation unit 11 can be comprised more compactly.

排気ファン１０を通過した冷気Ｃは、揺動ルーバー１７により排気口４の幅方向に拡散され、乱流となって排気口４から盤内に排出され、盤内各部をランダムに流動して機器を冷却する。そして、盤内の温度分布が一様となるまで上記動作を繰り返し、盤内温度を最適化する。従って、この実施形態の盤用熱交換器１によれば、特定域の高温空気を集中的に効率よく熱交換し、盤内空気Ａの温度分布を早期に均一化して、機器の動作環境を常に適正に管理することができる。   The cold air C that has passed through the exhaust fan 10 is diffused in the width direction of the exhaust port 4 by the swing louver 17 and is turbulently discharged from the exhaust port 4 into the panel. Cool down. Then, the above operation is repeated until the temperature distribution in the panel becomes uniform, and the temperature in the panel is optimized. Therefore, according to the panel heat exchanger 1 of this embodiment, high-temperature air in a specific area is intensively and efficiently exchanged, and the temperature distribution of the air A in the panel is made uniform at an early stage, thereby improving the operating environment of the device. It can always be managed properly.

図４に示す盤用熱交換器１では、赤外線温度センサ２３が吸気側可動ルーバー５に取り付けられ、このルーバー５と一体に上下に揺動する。そして、高温の盤内空気Ａがルーバー５によって吸気口３に導入されると、このときの赤外線温度センサ２３の出力に基づき、コントローラ２１が可動ルーバー５を直ちに停止させる。従って、この構成によっても、高温域の空気を集中的に効率よく熱交換することが可能となる。また、温度センサ２３に専用の揺動機構が不要になるので、熱交換器１の構成を簡略化できる利点もある。   In the panel heat exchanger 1 shown in FIG. 4, the infrared temperature sensor 23 is attached to the intake side movable louver 5 and swings up and down integrally with the louver 5. When the hot panel air A is introduced into the air inlet 3 by the louver 5, the controller 21 immediately stops the movable louver 5 based on the output of the infrared temperature sensor 23 at this time. Therefore, even with this configuration, it is possible to intensively and efficiently exchange heat in high-temperature air. Further, since a dedicated swing mechanism is not required for the temperature sensor 23, there is an advantage that the configuration of the heat exchanger 1 can be simplified.

その他、本発明は上記実施形態に限定されるものではなく、例えば、盤用熱交換器の筺体を横長に形成し、それに応じて各部ルーバーおよび赤外線温度センサの揺動方向を変えるなど、本発明の趣旨を逸脱しない範囲で、各部の形状や構成を適宜に変更して実施することも可能である。   In addition, the present invention is not limited to the above embodiment. For example, the casing of the panel heat exchanger is formed in a horizontally long shape, and the swing direction of each part louver and infrared temperature sensor is changed accordingly. The shape and configuration of each part can be changed as appropriate without departing from the spirit of the present invention.

本発明の一実施形態を示す盤用熱交換器の正面図である。It is a front view of the heat exchanger for boards which shows one embodiment of the present invention. 該熱交換器の内部構造を示す側面図である。It is a side view which shows the internal structure of this heat exchanger. 該熱交換器の吸気側および排気側の平面図である。It is a top view of the intake side and the exhaust side of the heat exchanger. 赤外線温度センサの別の取付形態を示す盤用熱交換器の側面図である。It is a side view of the heat exchanger for panels which shows another attachment form of an infrared temperature sensor. 従来の盤用熱交換器を示す側面図である。It is a side view which shows the conventional heat exchanger for panels.

符号の説明Explanation of symbols

１ 盤用熱交換器
２ 筺体
３ 吸気口
４ 排気口
５ 吸気側可動ルーバー
７ 排気側可動ルーバー
９ 吸気ファン
１０ 排気ファン
１１ 放熱ユニット
１５ 回動ルーバー
１７ 揺動ルーバー
１９ 赤外線温度センサ
２１ コントローラ
２３ 赤外線温度センサ DESCRIPTION OF SYMBOLS 1 Panel heat exchanger 2 Housing 3 Intake port 4 Exhaust port 5 Intake side movable louver 7 Exhaust side movable louver 9 Intake fan 10 Exhaust fan 11 Radiation unit 15 Rotating louver 17 Swing louver 19 Infrared temperature sensor 21 Controller 23 Infrared temperature Sensor

Claims (5)

機器収納盤内の空気を吸気口から吸気ファンを通して放熱ユニットに取り込む盤用熱交換器において、吸気口に可動ルーバーを設け、盤内各部の温度を赤外線温度センサで計測し、赤外線温度センサの出力に基づいて所定温度以上の高温域を探知し、該高温域の空気が吸気口に向かうように、可動ルーバーの向きを制御する手段を備えたことを特徴とする盤用熱交換器。   In the panel heat exchanger that takes the air in the equipment storage panel from the intake port into the heat dissipation unit through the intake fan, a movable louver is provided at the intake port, the temperature of each part in the panel is measured by the infrared temperature sensor, and the output of the infrared temperature sensor A heat exchanger for a panel comprising means for detecting a high temperature region above a predetermined temperature based on the above and controlling the direction of the movable louver so that the air in the high temperature region is directed toward the intake port. 前記赤外線温度センサを放熱ユニットの筺体に揺動可能に取り付けたことを特徴とする請求項１記載の盤用熱交換器。   2. The panel heat exchanger according to claim 1, wherein the infrared temperature sensor is swingably attached to the housing of the heat radiating unit. 前記赤外線温度センサを可動ルーバーに取り付けたことを特徴とする請求項１記載の盤用熱交換器。   2. The panel heat exchanger according to claim 1, wherein the infrared temperature sensor is attached to a movable louver. 前記吸気ファンを通過した空気を放熱ユニットに向けて放散させる回動ルーバーを備えたことを特徴とする請求項１〜３の何れか一項に記載の盤用熱交換器。   The panel heat exchanger according to any one of claims 1 to 3, further comprising a rotating louver that diffuses air that has passed through the intake fan toward a heat dissipation unit. 前記放熱ユニットの排気を盤内に排出する排気ファンと、排気ファンを通過した空気を盤内に向けて放散させる揺動ルーバーとを備えたことを特徴とする請求項１〜４の何れか一項に記載の盤用熱交換器。   5. An exhaust fan for exhausting the exhaust of the heat radiating unit into the panel, and a swing louver for diffusing the air that has passed through the exhaust fan into the panel. A heat exchanger for a board according to the item.
JP2007150698A 2007-06-06 2007-06-06 Panel heat exchanger Expired - Fee Related JP4956288B2 (en)

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