JPH0747926Y2 - Control box cooling structure - Google Patents

Control box cooling structure

Info

Publication number
JPH0747926Y2
JPH0747926Y2 JP1988115750U JP11575088U JPH0747926Y2 JP H0747926 Y2 JPH0747926 Y2 JP H0747926Y2 JP 1988115750 U JP1988115750 U JP 1988115750U JP 11575088 U JP11575088 U JP 11575088U JP H0747926 Y2 JPH0747926 Y2 JP H0747926Y2
Authority
JP
Japan
Prior art keywords
control box
radiator
fan
heat
cooling structure
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.)
Expired - Lifetime
Application number
JP1988115750U
Other languages
Japanese (ja)
Other versions
JPH0237504U (en
Inventor
真 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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP1988115750U priority Critical patent/JPH0747926Y2/en
Publication of JPH0237504U publication Critical patent/JPH0237504U/ja
Application granted granted Critical
Publication of JPH0747926Y2 publication Critical patent/JPH0747926Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【考案の詳細な説明】 〔産業上の利用分野〕 この考案は、機械などを制御するための電子機器を収納
する制御箱の冷却構造に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a cooling structure for a control box that houses electronic devices for controlling machines and the like.

〔従来の技術〕[Conventional technology]

第3図〜第5図は従来の制御箱の冷却構造を示すもので
あり、第3図は外観斜視図、第4図は側面断面図、第5
図は平面断面図である。それぞれの図において、(1)
は制御箱(100)の前面パネル、(2)は上面(2a)お
よび一対の側面(2b)を有した中間カバーであり、この
中間カバー(2)には両側面(2b)の上下に風窓(2c)
が穿設されている。(3)は制御箱(100)の背面側に
設けられたバックパネルで、角穴(3a)が穿設されてい
る。(4)は制御箱(100)の底板、(5)はバックパ
ネル(3)の角穴(3a)に装着され、多数のフィン(5
b)を有する放熱器、(6)は熱の発生するパワートラ
ンジスタなどの発熱部品であり、放熱器(5)の内面
(5a)に固定されている。(7)は冷却用のファン、
(8)は制御箱(100)の底板(4)に設けられた電源
架台、(9)は電源トランス、(10)はコンデンサであ
り、電源架台(8)上に配設されている。(11)はカー
ド取付架台、(12)(13)はカード取付架台(11)に装
着されたプリント基板である。
3 to 5 show a conventional cooling structure for a control box, FIG. 3 is an external perspective view, FIG. 4 is a side sectional view, and FIG.
The figure is a plan sectional view. In each figure, (1)
Is a front panel of the control box (100), and (2) is an intermediate cover having an upper surface (2a) and a pair of side surfaces (2b). The intermediate cover (2) has wind windows above and below both side surfaces (2b). (2c)
Has been drilled. (3) is a back panel provided on the back side of the control box (100), and has square holes (3a). (4) is a bottom plate of the control box (100), (5) is attached to the square hole (3a) of the back panel (3), and a large number of fins (5
A radiator having b), and (6) is a heat-generating component such as a power transistor that generates heat, and is fixed to the inner surface (5a) of the radiator (5). (7) is a cooling fan,
(8) is a power supply stand provided on the bottom plate (4) of the control box (100), (9) is a power transformer, and (10) is a capacitor, which is arranged on the power supply stand (8). (11) is a card mount, and (12) and (13) are printed circuit boards mounted on the card mount (11).

次に、制御箱(100)の冷却作用について説明する。制
御箱(100)内で発生した熱は、ファン(7)により撹
拌され、主として制御箱(100)表面から熱放散されて
いる。なお,風窓(2c)の開口は塵埃の侵入を少なくす
るために小さく構成してあり,さらに,ファン(7)の
風向きは上記風窓(2c)と直角方向として風窓(2c)に
よる換気は少くなくなるようにされている。
Next, the cooling action of the control box (100) will be described. The heat generated in the control box (100) is agitated by the fan (7) and is mainly dissipated from the surface of the control box (100). The opening of the wind window (2c) is made small in order to reduce the invasion of dust, and the direction of the wind of the fan (7) is set at a right angle to the wind window (2c), and the ventilation by the wind window (2c) becomes small. Is being done.

また、パワートランジスタなどの発熱部品(6)は放熱
器(5)の自然冷却によって冷却されている。
Further, the heat-generating component (6) such as a power transistor is cooled by natural cooling of the radiator (5).

〔考案が解決しようとする課題〕[Problems to be solved by the device]

従来の制御箱の冷却構造は以上のように構成され、放熱
器(5)は自然冷却にたよっているため比較的冷却能力
が低く、電流容量の大きい発熱部品(6)を使用するに
は放熱器(5)を大形にする必要があり、従って制御箱
(100)も大形化するという問題点があった。
The cooling structure of the conventional control box is configured as described above, and the radiator (5) has a relatively low cooling capacity because it relies on natural cooling. It is necessary to make the container (5) large, and thus the control box (100) is also large.

この考案は上記のような問題点を解消するためになされ
たもので、放熱器の大きさを変えることなく電流容量の
大きい発熱部品を良好に冷却することができる制御箱の
冷却構造を得ることを目的とする。
The present invention has been made to solve the above problems, and to obtain a cooling structure of a control box capable of favorably cooling a heat-generating component having a large current capacity without changing the size of a radiator. With the goal.

〔課題を解決するための手段〕[Means for Solving the Problems]

この考案に係る制御箱の冷却構造は、表面にフィンを有
する放熱器の裏面に固定した発熱部品と、上記発熱部品
に送風して冷却するファンとを収納した制御箱の冷却構
造であって、上記制御箱に風窓を穿設すると共に、上記
放熱器裏面の近傍に上記ファンを配置し、上記放熱器は
上記フィンが外部に露出するように上記制御箱の一側面
に装着され、上記制御箱の一側面の上記フィンの上方部
に上記フィンのほぼ横幅の長さにわたって上記ファンに
より生じた送風を排気させるスリット状の窓を形成した
ことを特徴とするものである。
The cooling structure for a control box according to the present invention is a cooling structure for a control box that accommodates a heat-generating component fixed to the back surface of a radiator having fins on the front surface and a fan for blowing air to the heat-generating component to cool the heat-generating component. A wind window is formed in the control box, and the fan is arranged in the vicinity of the rear surface of the radiator, and the radiator is attached to one side surface of the control box so that the fins are exposed to the outside. A slit-shaped window for exhausting the air blown by the fan is formed in an upper portion of the fin on one side of the fin over a substantially horizontal width of the fin.

〔作用〕[Action]

この考案においては、冷却用のファンにより、放熱器に
設けられた発熱部品が強制的に冷却されるとともに、放
熱器上方に形成された窓から放出される風によって、放
熱器フィン間の自然対流が促進する。
In this invention, the cooling fan forcibly cools the heat-generating components provided in the radiator, and the air emitted from the window formed above the radiator causes natural convection between the radiator fins. Promote.

〔考案の実施例〕[Example of device]

以下、この考案の一実施例を第1図および第2図につい
て説明する。(3b)はバックパネル(3)の上部に穿設
された風窓である。風窓(3b)は放熱器(5)の上端に
沿って、細長いスリット状に設けられている。
An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. (3b) is a wind window formed in the upper part of the back panel (3). The wind window (3b) is provided in the shape of an elongated slit along the upper end of the radiator (5).

ファン(7)は制御箱(100)の上部に放熱器(5)に
接近して配設されている。
The fan (7) is arranged in the upper part of the control box (100) close to the radiator (5).

なお、その他については第3図〜第5図に示す従来のも
のと同様であり説明を省略する。
The other parts are the same as the conventional ones shown in FIGS. 3 to 5, and the description thereof is omitted.

第1図の矢印で示すように、ファン(7)からの風は放
熱器(5)の内面(5a)に衝突し、これ内面(5a)に沿
って拡散して制御箱(100)内部を撹拌するとともに、
放熱器(5)に固定されている発熱部品(6)を強制冷
却する。また、ファン(7)の風の一部はバックパネル
(3)の上部の風窓(3b)から制御箱(100)外部へ放
出される。放熱器(5)の多数のフィン(5b)の間の空
気は自然対流によりあたためられて上昇するが、放熱器
(5)のの上部の高い風速の排気空気の流れより、放熱
器(5)の上部の位置では大気に対して負圧となってい
るため、ベンチュリー効果によって放熱器(5)のフィ
ン(5b)の間の空気が吸い上げられる。このため,自然
対流による上昇気流が促進される。そのため放熱器
(5)の冷却能力が向上することになる。
As shown by the arrow in FIG. 1, the wind from the fan (7) collides with the inner surface (5a) of the radiator (5), diffuses along the inner surface (5a), and flows inside the control box (100). With stirring
The heat-generating component (6) fixed to the radiator (5) is forcibly cooled. A part of the wind of the fan (7) is discharged to the outside of the control box (100) from the wind window (3b) above the back panel (3). The air between the many fins (5b) of the radiator (5) is warmed up by natural convection and rises, but due to the high wind speed exhaust air flow above the radiator (5), the radiator (5) Since the negative pressure is higher than the atmospheric pressure at the position above, the air between the fins (5b) of the radiator (5) is sucked up by the Venturi effect. Therefore, the upward airflow due to natural convection is promoted. Therefore, the cooling capacity of the radiator (5) is improved.

またスリット状の風窓(3b)から出る風は比較的高速で
はあるが,風窓(3b)の断面積は小さいため,風量とし
ては少ない。
Moreover, although the wind emitted from the slit-shaped wind window (3b) is relatively high speed, the air volume is small because the cross-sectional area of the wind window (3b) is small.

従って,制御箱両側面(2b)に設けられた風窓(2c)か
ら流入する外気も少なくてすみ,従来と同様塵埃の侵入
を少なくできる。
Therefore, the amount of outside air flowing in from the wind windows (2c) provided on both sides (2b) of the control box can be reduced, and the intrusion of dust can be reduced as in the conventional case.

〔考案の効果〕[Effect of device]

以上のようにこの考案によれば、表面にフィンを有する
放熱器の裏面に固定した発熱部品と、上記発熱部品に送
風して冷却するファンとを収納した制御箱の冷却構造で
あって、上記制御箱に風窓を穿設すると共に、上記放熱
器裏面の近傍に上記ファンを配置し、上記放熱器は上記
フィンが外部に露出するように上記制御箱の一側面に装
着され、上記制御箱の一側面の上記フィンの上方部に上
記フィンのほぼ横幅の長さにわたって上記ファンにより
生じた送風を排気させるスリット状の窓を形成したの
で、放熱器の冷却能力が向上するという効果がある。
As described above, according to the present invention, there is provided a cooling structure of a control box which accommodates a heat-generating component fixed to the back surface of a radiator having fins on the front surface and a fan for blowing air to the heat-generating component to cool the heat generating component. A wind window is formed in the control box, and the fan is arranged in the vicinity of the back surface of the radiator, and the radiator is attached to one side surface of the control box so that the fins are exposed to the outside. Since the slit-shaped window for exhausting the air blown by the fan is formed in the upper portion of the fin on one side over the width of the fin, there is an effect that the cooling capacity of the radiator is improved.

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

第1図はこの考案の一実施例による制御箱の冷却構造を
示す側面断面図、第2図は同平面断面図、第3図は従来
の制御箱の冷却構造を示す斜視図、第4図は同側面断面
図、第5図は同平面断面図である。 図において、(1)は前面パネル、(3)はバックパネ
ル、(3b)は風窓、(5)は放熱器、(5b)はフィン、
(6)は発熱部品、(7)はファン、(100)は制御箱
である。 なお、図中、同一符号は同一または相当部分を示す。
FIG. 1 is a side sectional view showing a cooling structure of a control box according to an embodiment of the present invention, FIG. 2 is a sectional view of the same plane, and FIG. 3 is a perspective view showing a conventional cooling structure of a control box. Is a side sectional view of the same, and FIG. 5 is a sectional view of the same plane. In the figure, (1) is a front panel, (3) is a back panel, (3b) is a wind window, (5) is a radiator, (5b) is a fin,
(6) is a heat-generating component, (7) is a fan, and (100) is a control box. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】表面にフィンを有する放熱器の裏面に固定
した発熱部品と、上記発熱部品に送風して冷却するファ
ンとを収納した制御箱の冷却構造であって、 上記制御箱に風窓を穿設すると共に、上記放熱器裏面の
近傍に上記ファンを配置し、上記放熱器は上記フィンが
外部に露出するように上記制御箱の一側面に装着され、
上記制御箱の一側面の上記フィンの上方部に上記フィン
のほぼ横幅の長さにわたって上記ファンにより生じた送
風を排気させるスリット状の窓を形成したことを特徴と
する制御箱の冷却構造。
1. A cooling structure for a control box containing a heat-generating component fixed to the back surface of a radiator having fins on the front surface and a fan for blowing air to the heat-generating component to cool the heat-generating component. Along with drilling, the fan is arranged near the rear surface of the radiator, and the radiator is mounted on one side surface of the control box so that the fins are exposed to the outside.
A cooling structure for a control box, wherein a slit-shaped window for exhausting air blown by the fan is formed in an upper portion of the fin on one side of the control box over a width of the fin.
JP1988115750U 1988-09-02 1988-09-02 Control box cooling structure Expired - Lifetime JPH0747926Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988115750U JPH0747926Y2 (en) 1988-09-02 1988-09-02 Control box cooling structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988115750U JPH0747926Y2 (en) 1988-09-02 1988-09-02 Control box cooling structure

Publications (2)

Publication Number Publication Date
JPH0237504U JPH0237504U (en) 1990-03-13
JPH0747926Y2 true JPH0747926Y2 (en) 1995-11-01

Family

ID=31357683

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988115750U Expired - Lifetime JPH0747926Y2 (en) 1988-09-02 1988-09-02 Control box cooling structure

Country Status (1)

Country Link
JP (1) JPH0747926Y2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019057656A (en) * 2017-09-22 2019-04-11 ダイヤモンド電機株式会社 Electronic device with air cooling mechanism
JP7039779B2 (en) * 2017-09-22 2022-03-23 ダイヤゼブラ電機株式会社 Electronic equipment with air cooling mechanism

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57135804U (en) * 1981-02-20 1982-08-24
JPS62188906U (en) * 1986-05-21 1987-12-01

Also Published As

Publication number Publication date
JPH0237504U (en) 1990-03-13

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