JPS6014498A - Forcible air cooling heat sink unit - Google Patents
Forcible air cooling heat sink unitInfo
- Publication number
- JPS6014498A JPS6014498A JP12267783A JP12267783A JPS6014498A JP S6014498 A JPS6014498 A JP S6014498A JP 12267783 A JP12267783 A JP 12267783A JP 12267783 A JP12267783 A JP 12267783A JP S6014498 A JPS6014498 A JP S6014498A
- Authority
- JP
- Japan
- Prior art keywords
- air cooling
- cooling
- heat sink
- cooling heat
- sink unit
- 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
Links
Landscapes
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、放送用送信機の電力増幅器等の発熱体の筺体
に取付けて用いる強制空冷用放熱器に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a forced air cooling radiator used by being attached to a housing of a heat generating element such as a power amplifier of a broadcasting transmitter.
従来、この種の放熱器は、軽量化と放熱効果を良くする
ために、放熱フィンの一部に冷却空気の流れ方向と直角
の方向に通る切れ目を設けていた。Conventionally, this type of radiator has provided a part of the radiator fin with a cut extending in a direction perpendicular to the flow direction of the cooling air in order to reduce weight and improve the heat radiation effect.
これによって放熱フィンの全外周に乱流音生じ同条件の
層流フィンに比して2〜3倍の放熱量が得られ、しかも
切れ目の分だけ放熱フィンが軽量になっていた。しかし
ながら、乱流音生じさせるから、ある条件(切り欠きの
ピッチ、フィンの大きさ、風速等の値ンでは放熱器から
共鳴音が発生し。As a result, turbulence noise was generated around the entire outer periphery of the heat dissipation fin, and the amount of heat dissipated was two to three times that of a laminar flow fin under the same conditions, and the heat dissipation fin was lighter by the amount of the cut. However, since it causes turbulence noise, under certain conditions (such as the pitch of the notch, the size of the fins, and the wind speed), resonance noise may be generated from the radiator.
騒音が大きいという欠点があったつ
第1図は、従来の軽量強制空冷用放熱器の斜Dt図であ
る。底板1の表面に垂直に立上がる板状の放熱フィン2
を複数個平行に設けている。フィン2を冷却する空気の
流れ4に対して直角方向に通る切れ目(間隙)5を多数
人れる。このような切れ目5金入れると放熱用フィン2
の空気上流端21と下流端22により強制的に空気の流
れが乱されその流れの後方に広い範囲に渦を生じる。FIG. 1 is a diagonal Dt diagram of a conventional lightweight forced air cooling radiator. A plate-shaped radiation fin 2 that stands up perpendicularly to the surface of the bottom plate 1
are installed in parallel. A large number of cuts (gaps) 5 are formed which pass in a direction perpendicular to the air flow 4 that cools the fins 2. Heat dissipation fin 2 is created by inserting a cut like this.
The air flow is forcibly disturbed by the air upstream end 21 and downstream end 22 of the air flow, and a vortex is generated in a wide range behind the flow.
第2図は、第1図の放熱フィンの一部と空気の流れとを
示す平面図である。放熱フィン2は、その上流端21の
みならず、全外周に乱流6を生じ、層流に比して2〜3
倍の放熱量が得られる。しかも、切れ口50分だけ放熱
フィンが軽量になる。FIG. 2 is a plan view showing a portion of the radiation fins and air flow shown in FIG. 1. FIG. The radiation fin 2 generates turbulent flow 6 not only at its upstream end 21 but also around the entire outer circumference, and has a turbulent flow 6 of 2 to 3 turbulent flow compared to laminar flow.
Double the amount of heat dissipated. Moreover, the heat dissipation fin becomes lighter by 50 minutes at the cut end.
しかしながら、乱流金主じることによって、ある条件(
切り火きのピッチ、フィンの犬@さ、風速等の値)では
、放熱器から共鳴片が発生し、騒音が大きいという欠点
があった。However, due to the turbulent flow, certain conditions (
(values such as the pitch of the bonfire, the width of the fin, and the wind speed) had the disadvantage that resonance fragments were generated from the radiator and the noise was large.
本発明の目的は、掻音が小さい強ft1lJ空冷用放熱
器の提供にある。An object of the present invention is to provide a strong ft1lJ air cooling radiator with low scratching noise.
本発明による強制空冷用放熱器は、複数の列に並べた多
数の放熱フィンと、冷却空気流全前記放熱フィンに沿わ
せる冷却空気案内体と、一部の前記列近傍における前記
冷却空気流の流Hk他の部分の前記列近傍における前記
冷却空気流の流線と異ならせる手段とを備えて溝成され
る。The radiator for forced air cooling according to the present invention includes a large number of radiating fins arranged in a plurality of rows, a cooling air guide body that causes the entire cooling airflow to follow the radiating fins, and a cooling airflow guide that directs the entire cooling airflow along the radiating fins in the vicinity of some of the rows. The cooling air flow Hk is provided with means for differentiating the streamlines of the cooling air flow in the vicinity of the rows in other portions.
ダクト内の放熱フィンに気流が当たるとき、騒音が発生
する現象はよく知られている。発生音は純音であり、周
波数は気流速度とともに上昇するが、その変化は階段状
である。−tLで、周波数がカルマン渦の放出周波数に
ほぼ近いことから音の発生現象とカルマン渦の放出とが
結び付いていることがわかる。不発明は冷却空気の流れ
全部分的に異ならしめることによって、カルマンうずの
放出金低減し、石片の発生を防ぐものである5次に図面
を参照して、本発明の詳細な説明する。It is well known that noise is generated when airflow hits the heat dissipation fins in a duct. The generated sound is a pure tone, and the frequency increases with the airflow velocity, but the change is step-like. -tL, the frequency is almost close to the Karman vortex shedding frequency, which indicates that the sound generation phenomenon and the Karman vortex shedding are connected. The present invention is to reduce the discharge of Karman vortices and prevent the generation of stone chips by varying the flow of cooling air in all parts.5 Next, the present invention will be described in detail with reference to the drawings.
第3図は5本発明の第1の実姉例の斜視図であり、フィ
ンの先端に風もれ防止板7ケ設けている。FIG. 3 is a perspective view of the first practical example of the present invention, in which seven wind leak prevention plates are provided at the tips of the fins.
本図に示すようにフィン間に仕切板8を1枚又は複数枚
挿入して形状を変え、仕切板8の近傍と残余の部分との
冷却空気の流れ金具ならしめることにより、共鳴点金な
くシ、共鳴音の発生金防ぐことが出来る。また、仕切板
を挿入するかわりに、一部のフィン金切り欠かない方法
も同様の効果ケ得ることができる。As shown in this figure, by inserting one or more partition plates 8 between the fins, changing the shape, and making them a fitting for cooling air to flow between the vicinity of the partition plate 8 and the remaining parts, there is no resonance point. It is possible to prevent the generation of resonance noise. Also, instead of inserting a partition plate, the same effect can be obtained by not cutting out part of the fin metal.
第4図は、本発明の第2の実姉例の斜視図である5本図
に示すように冷却空気出口の一部を板9によってふさぐ
ことにより局部的に風速金工げ共鳴音の発生金防いでい
る。FIG. 4 is a perspective view of a second practical example of the present invention. As shown in FIG. I'm here.
第5図(咳、冷却空気出口をふさぐために被冷却装置の
シャーシ10の一部金板9とした第2の実姉例の一変形
の斜視図であり、第6図は、風もれ防IE板7の延長部
全曲げることにより、板9として冷却空気出口をふさい
だ第2の実姉例の他の変形の斜視図である。これらの変
形も前記実施例と同様な効果が得られることは明らかで
ある。FIG. 5 is a perspective view of a modification of the second actual example in which a part of the chassis 10 of the device to be cooled is made of metal plate 9 in order to block the cooling air outlet; FIG. It is a perspective view of another modification of the second real sister example in which the cooling air outlet is blocked by the plate 9 by bending the entire extension of the IE plate 7.These modifications can also obtain the same effect as the previous embodiment. is clear.
以上説明したように、本発明によれば、共鳴音が発生し
に<<@音の小ざい強制空冷用放熱器が供給できるっAs explained above, according to the present invention, it is possible to provide a radiator for forced air cooling that does not generate resonance noise and has low noise.
第1図は、従来の軽量強制空冷用放熱器の斜視図、第2
図は第1図の放熱フィンの一部と空気の流れと金示す平
面図、第3図は本発明の@lの実施例の部分破断斜視図
、簗4図は本発明の第2の実姉例の部分破断斜視図、第
5図及び第6図はこの第2の実がn例の変形例をそれぞ
れ示す部分破断斜視図であるっ
]・・・・・・底fi 、2・、、、放熱フィン、4・
・印・冷却空気流、5・・・・・・フィンの間隙、6・
旧・・渦、7・・川・風もれ防市板、8・・・・・・仕
切板、9・・・・・・板、100.。
・・・シャーシ、21・・団・放熱フィン2の空気上流
端、22・・・・・・放熱フィン2の空気下流端。
代理人 升理士 内 原 晋
錦2区Figure 1 is a perspective view of a conventional lightweight forced air cooling radiator;
The figure is a plan view showing part of the heat dissipation fins and the air flow shown in Fig. 1, Fig. 3 is a partially cutaway perspective view of the embodiment @l of the present invention, and Fig. 4 is a second actual sister of the present invention. FIGS. 5 and 6 are partially cutaway perspective views of the example, and FIGS. 5 and 6 are partially cutaway perspective views showing modifications of the second example, respectively. , heat dissipation fin, 4.
・Mark・Cooling air flow, 5...Gap between fins, 6・
Old... whirlpool, 7... river/wind leak prevention city board, 8... partition plate, 9... board, 100. . . . . Chassis, 21 . . . Air upstream end of the radiation fin 2, 22 . . . Air downstream end of the radiation fin 2. Agent Masashi Uchihara Shinkin 2nd Ward
Claims (1)
記放熱フィンに沿わせる冷却空気案内体と、一部の前記
列近傍における前記冷却空気流の流線ヲ他の部分の前記
列近傍における前記冷却空気流の流線と異方らぜる手段
とを備える強制空冷用放熱器っA large number of radiation fins arranged in a plurality of rows, a cooling air guide body that guides the cooling air flow along the radiation fins, and a streamline of the cooling air flow in the vicinity of some of the rows; A radiator for forced air cooling comprising means for anisotropically interfering with the streamlines of the cooling air flow.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12267783A JPS6014498A (en) | 1983-07-06 | 1983-07-06 | Forcible air cooling heat sink unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12267783A JPS6014498A (en) | 1983-07-06 | 1983-07-06 | Forcible air cooling heat sink unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6014498A true JPS6014498A (en) | 1985-01-25 |
Family
ID=14841896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12267783A Pending JPS6014498A (en) | 1983-07-06 | 1983-07-06 | Forcible air cooling heat sink unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6014498A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6457693U (en) * | 1987-10-02 | 1989-04-10 | ||
CN103701295A (en) * | 2013-11-29 | 2014-04-02 | 鞍山钦元节能设备制造有限公司 | Noise reducing and cooling component and magnetic power driver |
WO2014133780A1 (en) * | 2013-02-27 | 2014-09-04 | Magnadrive Corporation | Apparatus, systems and methods for reducing noise generated by rotating couplings |
WO2014182357A1 (en) * | 2013-05-07 | 2014-11-13 | Magnadrive Corporation | Apparatus, systems and methods for reducing noise generated by rotating couplings and drives |
-
1983
- 1983-07-06 JP JP12267783A patent/JPS6014498A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6457693U (en) * | 1987-10-02 | 1989-04-10 | ||
WO2014133780A1 (en) * | 2013-02-27 | 2014-09-04 | Magnadrive Corporation | Apparatus, systems and methods for reducing noise generated by rotating couplings |
CN105027401A (en) * | 2013-02-27 | 2015-11-04 | 麦格纳驱动公司 | Apparatus, systems and methods for reducing noise generated by rotating couplings |
WO2014182357A1 (en) * | 2013-05-07 | 2014-11-13 | Magnadrive Corporation | Apparatus, systems and methods for reducing noise generated by rotating couplings and drives |
CN105379085A (en) * | 2013-05-07 | 2016-03-02 | 麦格纳驱动公司 | Apparatus, systems and methods for reducing noise generated by rotating couplings and drives |
CN103701295A (en) * | 2013-11-29 | 2014-04-02 | 鞍山钦元节能设备制造有限公司 | Noise reducing and cooling component and magnetic power driver |
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