JPH08205332A - Metallic enclosed-type switchgear - Google Patents

Metallic enclosed-type switchgear

Info

Publication number
JPH08205332A
JPH08205332A JP7027686A JP2768695A JPH08205332A JP H08205332 A JPH08205332 A JP H08205332A JP 7027686 A JP7027686 A JP 7027686A JP 2768695 A JP2768695 A JP 2768695A JP H08205332 A JPH08205332 A JP H08205332A
Authority
JP
Japan
Prior art keywords
ventilation fan
inside air
exhaust port
temperature
box
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7027686A
Other languages
Japanese (ja)
Inventor
Atsushi Kato
篤 加藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Takaoka Toko Co Ltd
Original Assignee
Takaoka Electric Mfg Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Takaoka Electric Mfg Co Ltd filed Critical Takaoka Electric Mfg Co Ltd
Priority to JP7027686A priority Critical patent/JPH08205332A/en
Publication of JPH08205332A publication Critical patent/JPH08205332A/en
Pending legal-status Critical Current

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  • Ventilation (AREA)
  • Patch Boards (AREA)

Abstract

PURPOSE: To provide a metallic enclosed-type switchgear wherein the rise in the inside air temperature of a case can be controlled efficiently and thereby the operation time of a ventilating fan can be lessened. CONSTITUTION: This system is provided with a case 1 wherein an apparatus 2 is stored, inlet ports 11, 12 which are installed in the lower part of the case 1 and which take in outside air, a ceiling exhaust port 15 which is installed in the ceiling of the case 1 and which exhausts inside air and which has a ventilating fan 16, and a temperature sensor 3 which detects the inside air temperature of the case 1. The ventilating fan 16 operates when the temperature sensor 3 detects a temperatures which is the same as the value set for the operation of the ventilating fan 16 or above and it stops operation when the detected temperature is the same as the set value or below. In the upper part of the case 1, upper exhaust ports 13, 14 which exhaust inside air of the case 1 are installed. In this system, opening and closing boards 25, 26 are also installed which close the upper exhaust ports 13, 14 while the ventilating fan 16 is working and open them while the ventilating fan 16 is not working.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、動力設備や照明設備な
どに電力を供給する金属閉鎖形スイッチギヤに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal closed switchgear for supplying electric power to power equipment, lighting equipment and the like.

【0002】[0002]

【従来の技術】図2は従来の金属閉鎖形スイッチギヤの
一例を示すもので、(A)は正面図、(B)は側面図で
ある。図において、内部に電気機器などの機器2が収納
された箱体1の下部には、箱体1内に外気を吸入する吸
気口11,12が、その正面側および背面側にそれぞれ
設けられる。箱体1の天井部には、換気扇16を有し、
箱体1の内気を排出する天井排気口15が設けられる。
また、箱体1内には、箱体1の内気温度を検出する温度
センサ3が設けられる。
2. Description of the Related Art FIGS. 2A and 2B show an example of a conventional metal-closed switchgear, in which FIG. 2A is a front view and FIG. 2B is a side view. In the figure, in a lower portion of a box body 1 in which a device 2 such as an electric device is housed, intake ports 11 and 12 for sucking outside air into the box body 1 are provided on the front side and the back side, respectively. A ventilation fan 16 is provided on the ceiling of the box body 1,
A ceiling exhaust port 15 for discharging the inside air of the box body 1 is provided.
A temperature sensor 3 that detects the temperature of the inside air of the box 1 is provided inside the box 1.

【0003】機器2が通電状態になると、機器2が発熱
して、箱体1の内気温度が上昇する。箱体1の内気温度
は温度センサ3で検出されるが、その温度が換気扇16
の運転設置値以下であるときには、換気扇16は停止し
ている。したがって、箱体1の内気温度の上昇に伴い、
箱体1の内気が自然循環して、自然換気が行われる。す
なわち、吸気口11,12から外気が吸入され、機器2
を冷却しながら上昇して、天井排気口15から排出さ
れ、箱体1内の温度上昇が抑制される。しかし、それで
も箱体1の内気温度が上昇して、温度センサ3が換気扇
16の運転設定値以上の温度を検出すると、強制換気が
行われる。すなわち、換気扇16が作動して、箱体1の
内気が天井排気口15から強制的に排出される。この結
果、吸気口11,12からの外気の吸入量が増大し、機
器2を冷却しながら上昇して、天井排気口15から排出
されるので、箱体1の内気温度が低下する。そして、温
度センサ3が換気扇16の停止設定値以下の温度を検出
すると、換気扇16が停止し、上記自然換気に戻る。
When the device 2 is energized, the device 2 generates heat and the inside air temperature of the box 1 rises. The temperature of the inside air of the box 1 is detected by the temperature sensor 3.
When the operating installation value is less than or equal to, the ventilation fan 16 is stopped. Therefore, as the inside air temperature of the box 1 rises,
The inside air of the box body 1 is naturally circulated to provide natural ventilation. That is, the outside air is taken in through the intake ports 11 and 12, and the device 2
While being cooled, the temperature rises and is discharged from the ceiling exhaust port 15, and the temperature rise in the box body 1 is suppressed. However, even if the inside air temperature of the box body 1 still rises and the temperature sensor 3 detects a temperature equal to or higher than the operation set value of the ventilation fan 16, forced ventilation is performed. That is, the ventilation fan 16 operates to forcibly discharge the inside air of the box body 1 from the ceiling exhaust port 15. As a result, the amount of intake of the outside air from the intake ports 11 and 12 increases, rises while cooling the device 2 and is discharged from the ceiling exhaust port 15, so that the temperature of the inside air of the box 1 decreases. Then, when the temperature sensor 3 detects a temperature equal to or lower than the stop set value of the ventilation fan 16, the ventilation fan 16 stops and the above-described natural ventilation is resumed.

【0004】[0004]

【発明が解決しようとする課題】上記従来の金属閉鎖形
スイッチギヤにおいては、箱体1の内気の排出は天井排
気口15のみで行われているので、自然換気時、すなわ
ち換気扇16が停止しているときには、箱体1の内気を
十分に排出することができない。この結果、吸気口1
1,12からの吸気量も少量となるので、機器2が十分
に冷却されず、箱体1の内気温度は急速に上昇する。こ
の結果、換気扇16が頻繁に作動することになるので、
経済的でないばかりでなく、換気扇16の寿命も短くな
る。
In the above-mentioned conventional metal-closed switchgear, since the inside air of the box 1 is discharged only through the ceiling exhaust port 15, during natural ventilation, that is, the ventilation fan 16 stops. While inside, the inside air of the box body 1 cannot be sufficiently discharged. As a result, the intake port 1
Since the amount of intake air from 1 and 12 is also small, the device 2 is not sufficiently cooled, and the temperature of the inside air of the box 1 rises rapidly. As a result, since the ventilation fan 16 is frequently operated,
Not only is it economical, but the life of the ventilation fan 16 is also shortened.

【0005】これを防止するためには、天井排気口15
とは別に、箱体1の上部に換気扇を有する上部排気口を
設ければよいが、この場合には、経済性を損ねることに
なる。また、換気扇を有しない上部排気口を設けた場合
には、強制換気時、すなわち天井排気口15の換気扇1
6が作動しているときには、この換気扇16によって、
上部排気口から外気が吸入される。この上部排気口から
の外気の吸入は、機器2を冷却することなく、天井排気
口15から排出されるので、箱体1の内気温度の低下に
はほとんど寄与しないばかりでなく、吸気口11,12
からの外気の吸入量を減少させることになり、かえって
箱体1の内気温度の低下を妨げることになる。
In order to prevent this, the ceiling exhaust port 15
Separately from this, an upper exhaust port having a ventilation fan may be provided on the upper part of the box body 1, but in this case, the economical efficiency is impaired. Further, when the upper exhaust port having no ventilation fan is provided, during the forced ventilation, that is, the ventilation fan 1 of the ceiling exhaust port 15 is provided.
When 6 is operating, this ventilation fan 16
Outside air is taken in through the upper exhaust port. The intake of the outside air from the upper exhaust port is discharged from the ceiling exhaust port 15 without cooling the device 2, so that it does not substantially contribute to the decrease of the inside air temperature of the box body 1, and the intake port 11, 12
The amount of intake of the outside air from the inside of the box 1 is reduced, and the decrease of the inside air temperature of the box 1 is prevented.

【0006】そこで本発明は、自然換気時、すなわち天
井排気口の換気扇が停止しているときの外気の吸入量お
よび内気の排気量を増大させ、箱体の内気温度の上昇を
効率よく抑制して、換気扇の作動時間を減少させること
により、経済的で、かつ換気扇の寿命を長くすることが
できる金属閉鎖形スイッチギヤを提供することを目的と
する。
In view of the above, the present invention increases the intake amount of the outside air and the exhaust amount of the inside air during natural ventilation, that is, when the ventilation fan at the ceiling exhaust port is stopped, and efficiently suppresses the rise in the inside air temperature of the box. Therefore, it is an object of the present invention to provide a metal-closed switchgear that is economical and can prolong the life of the ventilation fan by reducing the operating time of the ventilation fan.

【0007】[0007]

【課題を解決するための手段】請求項1記載の発明の金
属閉鎖形スイッチギヤにおいては、機器が内部に収納さ
れた箱体と、この箱体の下部に設けられ、外気を吸入す
る吸気口と、前記箱体の天井部に設けられ、内気を排出
する、換気扇を有する天井排気口と、前記箱体の内気温
度を検出する温度センサとを備え、前記換気扇は前記温
度センサが前記換気扇の運転設定値以上の温度を検出し
たときには作動し、かつ前記換気扇の停止設定値以下の
温度を検出したときには停止するようにした金属閉鎖形
スイッチギヤにおいて、前記箱体の上部に、前記箱体の
内気を排出する上部排気口を設ける。また、前記換気扇
が作動しているときには前記上部排気口を閉鎖し、かつ
前記換気扇が停止しているときには前記上部排気口を開
放する開閉板を設ける。
According to another aspect of the present invention, there is provided a metal closed switchgear, wherein a box body in which a device is housed and an intake port provided at a lower portion of the box body for sucking outside air. And a ceiling exhaust port provided on the ceiling portion of the box body for discharging the inside air and having a ventilation fan, and a temperature sensor for detecting the inside air temperature of the box body, wherein the ventilation sensor is the temperature sensor of the ventilation fan. In a metal-closed switchgear, which is activated when a temperature equal to or higher than an operation set value is detected, and is stopped when a temperature equal to or lower than the stop set value of the ventilation fan is detected, in the upper part of the box body, Provide an upper exhaust port for discharging the inside air. Further, an opening / closing plate is provided which closes the upper exhaust port when the ventilation fan is operating and opens the upper exhaust port when the ventilation fan is stopped.

【0008】請求項2記載の発明の金属閉鎖形スイツチ
ギヤにおいては、前記開閉板はモータによって回動され
る回転軸に固着され、この回転軸の回動により前記上部
排気口を開閉する。
In the metal-closed switch gear according to the second aspect of the present invention, the opening / closing plate is fixed to a rotary shaft rotated by a motor, and the upper exhaust port is opened / closed by the rotation of the rotary shaft.

【0009】[0009]

【作用】請求項1記載の発明の金属閉鎖形スイッチギヤ
においては、自然換気時、すなわち換気扇が停止してい
るときには、箱体の内気は天井排気口だけでなく、上部
排気口からも排出される。したがって、この排気量の増
大により、吸気口からの吸気量も増大するので、内気温
度の上昇は大幅に抑制される。また、それにもかかわら
ず、内気温度が上昇して、温度センサが運転設定値以上
の温度を検出したときには、換気扇が作動し、強制換気
が行われる。このとき同時に、開閉板が上部排気口を閉
鎖し、上部排気口からの外気の吸入を防ぐ。つまり、外
気の吸入は吸気口のみで行われるので、良好に強制換気
が行われる。その後、内気温度が低下し、温度センサが
停止設定値以下の温度を検出すると、換気扇が停止する
と同時に、開閉板が上部排気口を開放し、元の自然換気
に戻る。
In the metal-closed switchgear according to the first aspect of the invention, the inside air of the box is discharged not only from the ceiling exhaust port but also from the upper exhaust port during natural ventilation, that is, when the ventilation fan is stopped. It Therefore, the increase in the exhaust amount also increases the intake amount from the intake port, so that the rise in the inside air temperature is significantly suppressed. Moreover, nevertheless, when the temperature of the inside air rises and the temperature sensor detects a temperature equal to or higher than the operation set value, the ventilation fan operates to perform forced ventilation. At the same time, the opening / closing plate closes the upper exhaust port to prevent intake of outside air from the upper exhaust port. That is, since the intake of the outside air is performed only through the intake port, the forced ventilation is satisfactorily performed. Then, when the temperature of the inside air decreases and the temperature sensor detects a temperature equal to or lower than the stop set value, the ventilation fan stops, and at the same time, the opening / closing plate opens the upper exhaust port and returns to the original natural ventilation.

【0010】請求項2記載の発明の金属閉鎖形スイッチ
ギヤにおいては、構造が簡単で、上部排気口を開閉板に
より容易に開閉することができる。
In the metal-closed switchgear according to the second aspect of the present invention, the structure is simple and the upper exhaust port can be easily opened and closed by the opening / closing plate.

【0011】[0011]

【実施例】図1は本発明の一実施例を示すもので、
(A)は正面図、(B)は自然換気時の側面図、(C)
は強制換気時の側面図である。図において、箱体1の上
部の正面側および背面側には、上部排気口13,14が
設けられる。上部排気口13,14の近傍には、回転軸
23,24が回動可能に支持されており、モータ21,
22によって回動される。開閉板25,26は回転軸2
3,24に固着されており、回転軸23,24の回動に
より、上部排気口13,14を閉鎖あるいは開放する。
すなわち、温度センサ3が換気扇16の運転設定値以上
の温度を検出して、換気扇16が作動したときには、モ
ータ21,22により回転軸23,24が回動して、開
閉板25,26が上部排気口13,14を閉鎖し、かつ
温度センサ3が換気扇16の停止設定値以下の温度を検
出して、換気扇16が停止したときには、モータ21,
22により回転軸23,24が回動して、開閉板25,
26が上部排気口13,14を開放する。
FIG. 1 shows an embodiment of the present invention.
(A) is a front view, (B) is a side view during natural ventilation, (C)
[Fig. 4] is a side view during forced ventilation. In the figure, upper exhaust ports 13 and 14 are provided on the front side and the rear side of the upper portion of the box body 1. Rotating shafts 23 and 24 are rotatably supported near the upper exhaust ports 13 and 14, respectively.
It is rotated by 22. The open / close plates 25 and 26 are the rotary shaft 2
The upper exhaust ports 13 and 14 are closed or opened by the rotation of the rotary shafts 23 and 24.
That is, when the temperature sensor 3 detects a temperature equal to or higher than the operation set value of the ventilation fan 16 and the ventilation fan 16 operates, the rotating shafts 23 and 24 are rotated by the motors 21 and 22, and the opening and closing plates 25 and 26 are placed above. When the exhaust ports 13 and 14 are closed and the temperature sensor 3 detects a temperature equal to or lower than the stop set value of the ventilation fan 16 and the ventilation fan 16 is stopped, the motor 21,
The rotary shafts 23 and 24 are rotated by 22 to open and close the open / close plate 25,
26 opens the upper exhaust ports 13, 14.

【0012】上記本発明の金属閉鎖形スイッチギヤにお
いては、機器2が通電状態になると、機器2が発熱し
て、箱体1の内気温度が上昇する。箱体1の内気温度は
温度センサ3で検出されるが、その温度が換気扇16の
運転設定値以下であるときには、図1(B)に示すよう
に、換気扇16は停止しており、かつ上部排気口13,
14は開閉板25,26が上方に位置して開放されてい
る。したがって、箱体1の内気温度の上昇に伴い、箱体
1の内気が自然循環して、自然換気が行われる。すなわ
ち、吸気口11,12から外気が吸入され、機器2を冷
却しながら上昇して、天井排気口15および上部排気口
13,14から排出され、箱体1内の温度上昇が抑制さ
れる。この場合、上記したように、箱体1の内気の排出
は天井排気口15および上部排気口13,14の両者に
よって行われるので、その排出量も増大し、この結果、
吸気口11,12からの吸入量も増大して、機器2の冷
却が効率良く行われるので、箱体1の温度上昇が大幅に
抑制される。
In the metal-closed switchgear of the present invention, when the device 2 is energized, the device 2 generates heat and the temperature of the inside air of the box 1 rises. The temperature of the inside air of the box 1 is detected by the temperature sensor 3, but when the temperature is equal to or lower than the operation set value of the ventilation fan 16, the ventilation fan 16 is stopped and the upper part of the ventilation fan 16 is in the upper portion, as shown in FIG. Exhaust port 13,
The opening / closing plates 25 and 26 of 14 are open at the upper side. Therefore, as the temperature of the inside air of the box 1 rises, the inside air of the box 1 naturally circulates and natural ventilation is performed. That is, the outside air is taken in through the intake ports 11 and 12, rises while cooling the device 2, and is discharged from the ceiling exhaust port 15 and the upper exhaust ports 13 and 14 to suppress the temperature rise in the box body 1. In this case, as described above, since the inside air of the box body 1 is exhausted by both the ceiling exhaust port 15 and the upper exhaust ports 13, 14, the amount of exhaust also increases, and as a result,
The amount of air sucked from the air inlets 11 and 12 is also increased, and the device 2 is efficiently cooled, so that the temperature rise of the box 1 is significantly suppressed.

【0013】また、それでも箱体1の内気温度が上昇し
て、温度センサ3が換気扇16の運転設定値以上の温度
を検出すると、強制換気が行われる。すなわち、換気扇
16が作動して、箱体1の内気が天井排気口15から強
制的に排出される。このとき、換気扇16の作動と同時
に、モータ21,22が作動し、図1(B)において、
回転軸23が時計方向に、かつ回転軸24が反時計方向
にそれぞれ回動して、上部排気口13,14がともに閉
鎖される。したがって、吸気口11,12から吸入され
た外気は機器2を冷却しながら上昇して、天井排気口1
5から排出されるので、箱体1の内気温度が低下する。
なお、このとき上記したように、上部排気口13,14
は閉鎖されており、上部排気口13,14から外気が吸
入されることはないので、強制排気に悪影響を及ぼすこ
とはない。この状態を図1(C)に示す。
Still further, when the temperature of the inside air of the box 1 rises and the temperature sensor 3 detects a temperature above the operation set value of the ventilation fan 16, forced ventilation is performed. That is, the ventilation fan 16 operates to forcibly discharge the inside air of the box body 1 from the ceiling exhaust port 15. At this time, the motors 21 and 22 are activated at the same time as the ventilation fan 16 is activated, and in FIG.
The rotary shaft 23 rotates clockwise and the rotary shaft 24 rotates counterclockwise, so that the upper exhaust ports 13 and 14 are both closed. Therefore, the outside air drawn in through the intake ports 11 and 12 rises while cooling the device 2, and the ceiling exhaust port 1
Since it is discharged from 5, the inside air temperature of the box 1 is lowered.
At this time, as described above, the upper exhaust ports 13, 14
Is closed and no outside air is taken in through the upper exhaust ports 13 and 14, so that forced exhaust is not adversely affected. This state is shown in FIG.

【0014】そして、温度センサ3が換気扇16の停止
設定値以下の温度を検出すると、換気扇16が停止す
る。換気扇16の停止と同時に、モータ21,21が作
動し、図1(C)において、回転軸23が反時計方向
に、かつ回転軸24が時計方向にそれぞれ回動して、上
部排気口13,14がともに開放されて、図1(B)に
示す状態に戻り、自然換気が行われる。なお、上記実施
例では、上部排気口13,14は箱体1の正面側および
背面側の二か所に設けたが、必ずしもその必要はなく、
箱体1の大きさあるいは機器2の種類などにより、一か
所あるいは三か所以上適宜設けてもよい。また、開閉板
25,26もモータ21,22により回動される回転軸
23,24に固着することなく、例えば上下に移動可能
に形成して、上部排気口13,14を開閉するように構
成してもよい。
When the temperature sensor 3 detects a temperature equal to or lower than the stop set value of the ventilation fan 16, the ventilation fan 16 is stopped. Simultaneously with the stop of the ventilation fan 16, the motors 21 and 21 are operated, and in FIG. 1C, the rotary shaft 23 is rotated counterclockwise and the rotary shaft 24 is rotated clockwise, so that the upper exhaust port 13, Both 14 are opened to return to the state shown in FIG. 1 (B), and natural ventilation is performed. In the above embodiment, the upper exhaust ports 13 and 14 are provided at two positions on the front side and the back side of the box body 1, but they are not always necessary.
Depending on the size of the box 1 or the type of device 2, etc., it may be provided at one place or at three or more places. Further, the opening / closing plates 25 and 26 are not fixed to the rotating shafts 23 and 24 rotated by the motors 21 and 22 but are formed to be movable up and down, for example, to open and close the upper exhaust ports 13 and 14. You may.

【0015】[0015]

【発明の効果】請求項1記載の発明の金属閉鎖形スイッ
チギヤによれば、新たに設けた上部排気口によって、自
然換気時には内気の温度上昇を遅らすことができる。ま
た、強制換気時には上部排気口を開閉板によって閉鎖す
ることにより外気の吸入を防ぎ、外気の吸入は従来どお
り吸気口からのみで行うことができる。従って、総合的
にみると、自然換気時の内気の温度上昇が遅くなる分、
換気扇の運転状態を減らすことができるので、換気扇の
寿命を長くすることができる。
According to the metal closed switchgear of the first aspect of the present invention, the temperature rise of the inside air can be delayed during natural ventilation by the newly provided upper exhaust port. Also, during forced ventilation, the upper exhaust port is closed by an opening / closing plate to prevent intake of outside air, and intake of outside air can be performed only from the intake port as in the conventional case. Therefore, when viewed comprehensively, the temperature rise of the inside air during natural ventilation becomes slower,
Since the operating state of the ventilation fan can be reduced, the life of the ventilation fan can be extended.

【0016】請求項2記載の金属閉鎖形スイッチギヤに
よれば、構造が簡単で、上部排気口を開閉板により容易
に開閉することができる。
According to the metal closed switchgear of the second aspect, the structure is simple and the upper exhaust port can be easily opened and closed by the opening and closing plate.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の金属閉鎖形スイッチギヤの一実施例を
示し、(A)は正面図,(B)は自然換気時の側面図,
(C)は強制換気時の側面図である。
FIG. 1 shows an embodiment of a metal-closed switchgear of the present invention, (A) is a front view, (B) is a side view during natural ventilation,
(C) is a side view at the time of forced ventilation.

【図2】従来の金属閉鎖形スイッチギヤの一例を示し、
(A)は正面図,(B)は側面図である。
FIG. 2 shows an example of a conventional metal-closed switchgear,
(A) is a front view and (B) is a side view.

【符号の説明】[Explanation of symbols]

1 箱体 2 機器 3 温度センサ 11,12 吸気口 13,14 上部排気口 15 天井排気口 16 換気扇 21,22 モータ 23,24 回転軸 25,26 開閉板 1 Box 2 Equipment 3 Temperature Sensor 11,12 Intake Port 13,14 Upper Exhaust Port 15 Ceiling Exhaust Port 16 Ventilation Fan 21,22 Motor 23,24 Rotating Shaft 25,26 Opening Plate

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】機器が内部に収納された箱体と、この箱体
の下部に設けられ、外気を吸入する吸気口と、前記箱体
の天井部に設けられ、内気を排出する、換気扇を有する
天井排気口と、前記箱体の内気温度を検出する温度セン
サとを備え、前記換気扇は前記温度センサが前記換気扇
の運転設定値以上の温度を検出したときには作動し、か
つ前記換気扇の停止設定値以下の温度を検出したときに
は停止するようにした金属閉鎖形スイッチギヤにおい
て、 前記箱体の上部に、前記箱体の内気を排出する上部排気
口を設け、 前記換気扇が作動しているときには前記上部排気口を閉
鎖し、かつ前記換気扇が停止しているときには前記上部
排気口を開放する開閉板を設けた、 ことを特徴とする金属閉鎖形スイッチギヤ。
1. A box in which a device is housed, an intake port provided in the lower part of the box for sucking outside air, and a ventilation fan for exhausting inside air provided in the ceiling of the box. A ceiling exhaust port having, and a temperature sensor for detecting the inside air temperature of the box body, the ventilation fan is activated when the temperature sensor detects a temperature equal to or higher than an operation set value of the ventilation fan, and a stop setting of the ventilation fan. In a metal-closed switchgear configured to stop when a temperature lower than a value is detected, an upper exhaust port for discharging the inside air of the box body is provided at the upper part of the box body, and when the ventilation fan is operating, A metal-closed switchgear, comprising: an opening / closing plate that closes the upper exhaust port and opens the upper exhaust port when the ventilation fan is stopped.
【請求項2】前記開閉板はモータによって回動される回
転軸に固着され、この回転軸の回動により前記上部排気
口を開閉することを特徴とする請求項1記載の金属閉鎖
形スイッチギヤ。
2. The metal-closed switchgear according to claim 1, wherein the opening / closing plate is fixed to a rotary shaft rotated by a motor, and the upper exhaust port is opened / closed by the rotation of the rotary shaft. .
JP7027686A 1995-01-25 1995-01-25 Metallic enclosed-type switchgear Pending JPH08205332A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7027686A JPH08205332A (en) 1995-01-25 1995-01-25 Metallic enclosed-type switchgear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7027686A JPH08205332A (en) 1995-01-25 1995-01-25 Metallic enclosed-type switchgear

Publications (1)

Publication Number Publication Date
JPH08205332A true JPH08205332A (en) 1996-08-09

Family

ID=12227858

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7027686A Pending JPH08205332A (en) 1995-01-25 1995-01-25 Metallic enclosed-type switchgear

Country Status (1)

Country Link
JP (1) JPH08205332A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200454059Y1 (en) * 2008-12-24 2011-06-14 사회복지법인 한국노인생활지원재단 Cooling unit for an outdoor electric equipment case
CN103499989A (en) * 2013-09-26 2014-01-08 国网河南省电力公司南阳供电公司 Indoor electrical equipment air conditioner device and debugging method thereof
JP2016152627A (en) * 2015-02-16 2016-08-22 三菱電機株式会社 Fan unit
CN107104372A (en) * 2017-05-11 2017-08-29 句容市江电电器机械有限公司 Transformer
JP2019134549A (en) * 2018-01-30 2019-08-08 西芝電機株式会社 Method for preventing life deterioration of outdoor distribution board
CN110410915A (en) * 2019-06-24 2019-11-05 盘锦广利达电气有限公司 A kind of intelligent anti-dust ventilation device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200454059Y1 (en) * 2008-12-24 2011-06-14 사회복지법인 한국노인생활지원재단 Cooling unit for an outdoor electric equipment case
CN103499989A (en) * 2013-09-26 2014-01-08 国网河南省电力公司南阳供电公司 Indoor electrical equipment air conditioner device and debugging method thereof
JP2016152627A (en) * 2015-02-16 2016-08-22 三菱電機株式会社 Fan unit
CN107104372A (en) * 2017-05-11 2017-08-29 句容市江电电器机械有限公司 Transformer
JP2019134549A (en) * 2018-01-30 2019-08-08 西芝電機株式会社 Method for preventing life deterioration of outdoor distribution board
CN110410915A (en) * 2019-06-24 2019-11-05 盘锦广利达电气有限公司 A kind of intelligent anti-dust ventilation device
CN110410915B (en) * 2019-06-24 2020-06-26 黑龙江省广利达智能电气设备制造有限公司 Intelligent sand prevention dirt ventilation unit

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