JP2003152370A - Heat sink for controlling equipment - Google Patents
Heat sink for controlling equipmentInfo
- Publication number
- JP2003152370A JP2003152370A JP2001344444A JP2001344444A JP2003152370A JP 2003152370 A JP2003152370 A JP 2003152370A JP 2001344444 A JP2001344444 A JP 2001344444A JP 2001344444 A JP2001344444 A JP 2001344444A JP 2003152370 A JP2003152370 A JP 2003152370A
- Authority
- JP
- Japan
- Prior art keywords
- heat sink
- rib
- mounting wall
- control device
- fin
- 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.)
- Granted
Links
Landscapes
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、例えば、サーボド
ライバなどの制御機器に搭載される高熱電子部品を冷却
する制御機器用ヒートシンクに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat sink for a control device for cooling a high-thermal electronic component mounted on a control device such as a servo driver.
【０００２】[0002]
【従来の技術】従来、例えば、サーボドライバなどの制
御機器に搭載される高熱電子部品を冷却するために使用
する制御機器用ヒートシンクは、図４、図５のようにな
っている。図４は従来のヒートシンクであって、（ａ）
は平面図、（ｂ）は（ａ）の矢視Ｂ方向から見た側面
図、図５はヒートシンクを制御機器に取り付けた状態を
示す概観図である。図において、１はヒートシンク本
体、２は取付壁、３はフィン、４はベース部、５は押出
しピン跡、６は係合部、８は制御機器である。ここで、
ヒ−トシンク本体１は金型鋳造法を用いたアルミダイカ
ストより製作されたものであって、図４（ａ）に示すよ
うにフィン３の先端部に押出しピン跡５が形成される。
ヒートシンク本体１は、図５に示すように、高熱電子部
品を搭載してなる制御機器８などを取り付けるための平
板状のベース部４と、ベース部４に複数配設されたフィ
ン３と、ベース部４の一端に設けられ、フィン３と対向
して配置された外部の筐体などに取り付けるための取付
壁２と、を一体に配設したものとなっている。それか
ら、図４（ｂ）に示すように、取付壁２の端部には係合
部６を設けて外部の筐体などを取り付けると共に、取付
壁２とベース部４の接続部には曲率部４Ａを設けて強度
を確保するようになっている。2. Description of the Related Art Conventionally, a heat sink for a control device used for cooling a high temperature electronic component mounted on a control device such as a servo driver is as shown in FIGS. FIG. 4 shows a conventional heat sink, (a)
Is a plan view, (b) is a side view seen from the direction of arrow B in (a), and FIG. 5 is a schematic view showing a state in which a heat sink is attached to a control device. In the figure, 1 is a heat sink body, 2 is a mounting wall, 3 is a fin, 4 is a base portion, 5 is a push pin mark, 6 is an engaging portion, and 8 is a control device. here,
The heat sink body 1 is manufactured by aluminum die casting using a die casting method, and the extrusion pin traces 5 are formed at the tips of the fins 3 as shown in FIG.
As shown in FIG. 5, the heat sink body 1 includes a flat plate-shaped base portion 4 for mounting a control device 8 having high-thermal electronic components mounted thereon, a plurality of fins 3 arranged on the base portion 4, and a base. The mounting wall 2 is provided at one end of the portion 4 and is integrally disposed with the mounting wall 2 for mounting on an external housing or the like that is disposed so as to face the fin 3. Then, as shown in FIG. 4B, an engaging portion 6 is provided at an end portion of the mounting wall 2 to attach an external housing or the like, and a curved portion is provided at a connecting portion between the mounting wall 2 and the base portion 4. 4A is provided to secure the strength.
【０００３】[0003]
【発明が解決しようとする課題】ところで、従来技術に
おいて。ヒートシンク本体１を取りつけた制御機器８
は、例えば図示しない高振動環境における工作機械など
に一体化して設置されることが多い。ところが、上記の
制御機器８は、ヒートシンク本体の取付壁２の係合部６
を介して外部の工作機械（不図示）に取り付けられる構
成では、取付壁２あるいは係合部６近傍の機械強度が弱
く、ヒートシンク本体を含めた制御機器全体の固有振動
数が低いことから、機械が発生する振動に耐えられずに
大きく振動を起こし、動作が不安定になるという問題が
あった。また、ヒートシンク本体１は、ヒートシンクと
なるアルミダイカストを金型から抜く際の抵抗が大きい
ため、ダイカストに変形が生じ、強度上の問題を生じる
と共に、さらにフィン先端側にできる押出しピン跡５
は、ヒートシンク１の外観を損なうという問題があっ
た。これより、ヒートシンク一体型の制御機器を外部の
筐体などに取り付ける際に、高振動環境下で振動に強
く、強固な構造を有し、外観の良好なヒートシンクが望
まれていた。本発明は、上記問題を解消するためになさ
れたものであり、高振動環境下で耐久性に優れ、強固で
外観の良好な制御機器用ヒートシンクを提供することを
目的とする。By the way, in the prior art. Control device 8 with the heat sink body 1 attached
Is often installed integrally with, for example, a machine tool in a high vibration environment (not shown). However, the control device 8 described above has the engaging portion 6 of the mounting wall 2 of the heat sink body.
With a configuration in which it is attached to an external machine tool (not shown) via the machine, the mechanical strength in the vicinity of the attachment wall 2 or the engaging portion 6 is weak, and the natural frequency of the entire control device including the heat sink body is low. However, there is a problem that the operation is unstable because it vibrates greatly without being able to withstand the vibration that occurs. In addition, since the heat sink body 1 has a large resistance when the aluminum die cast serving as the heat sink is pulled out from the mold, the die cast is deformed, which causes a problem in strength, and the extrusion pin marks 5 formed further on the fin tip side.
Had a problem of impairing the appearance of the heat sink 1. Therefore, when a heat sink-integrated control device is attached to an external housing or the like, a heat sink that has a strong structure and is strong against vibration under a high vibration environment and has a good appearance has been desired. The present invention has been made to solve the above problems, and an object of the present invention is to provide a heat sink for a control device, which has excellent durability in a high vibration environment, is strong, and has a good appearance.
【０００４】[0004]
【発明が解決しようとする手段】上記問題を解決するた
め、請求項１の本発明は、制御機器などに搭載される高
熱電子部品を取り付けるための平板状のベース部と、前
記ベース部に複数配設されたフィンと、前記ベース部の
一端に設けられ、前記フィンと対向して配置された外部
の筐体などに取り付けるための取付壁と、を一体に配設
した制御機器用ヒートシンクであって、前記取付壁と前
記フィンの間に、前記取付壁と前記フィンを繋ぐ壁を形
成するリブを少なくとも１箇所設けたものである。請求
項２の本発明は、請求項１記載の制御機器用ヒートシン
クにおいて、前記リブを前記フィン同志の間に、少なく
とも１箇所設けたものである。請求項３の本発明は、請
求項１また２に記載の制御機器用ヒートシンクにおい
て、前記取付壁に外部の筐体などを取り付けるための係
合部を設け、前記リブを前記係合部の近傍に設けたもの
である。請求項４の本発明は、請求項１から３までの何
れか１項に記載の制御機器用ヒートシンクにおいて、前
記リブの断面形状を長辺の２角の角度が６０度以下とす
る三角形状とすると共に、当該リブの長辺を前記ベース
部となるように配置したものである。In order to solve the above problems, the present invention according to claim 1 provides a flat plate-shaped base portion for mounting a high-thermal electronic component mounted on a control device and the like, and a plurality of base portions. A heat sink for a control device in which a fin that is provided and a mounting wall that is provided at one end of the base portion and that is mounted to face the fin and is attached to an external housing are integrally provided. Then, at least one rib that forms a wall connecting the mounting wall and the fin is provided between the mounting wall and the fin. According to a second aspect of the present invention, in the heat sink for a control device according to the first aspect, at least one rib is provided between the fins. According to a third aspect of the present invention, in the heat sink for a control device according to the first or second aspect, an engaging portion for attaching an external housing or the like is provided on the attachment wall, and the rib is provided near the engaging portion. It was installed in. According to a fourth aspect of the present invention, in the heat sink for a control device according to any one of the first to third aspects, a cross-sectional shape of the rib is a triangular shape in which two long sides have an angle of 60 degrees or less. In addition, the long side of the rib is arranged to serve as the base portion.
【０００５】[0005]
【発明の実施の形態】以下、本発明の実施例を図に基づ
いて説明する。図１は本発明の実施例を示す制御機器用
ヒートシンクであって、（ａ）は正面図、（ｂ）は
（ａ）の矢視Ａ−Ａ線に沿う側断面図である。なお、本
発明の構成要素が従来技術と同じものについてはその説
明を省略し、異なる点のみ説明する。図１において、７
はリブである。本発明が従来技術と異なる点は以下のと
おりである。すなわち、取付壁２とフィン３の間に、取
付壁２とフィン３を繋ぐ壁を形成するリブ７を少なくと
も１個所設けると共に、同じくフィン３、３同志の間に
もリブ７を少なくとも１個所設けた点である。このよう
に、第１の実施例は取付壁２とフィン３の間に、取付壁
２とフィン３を繋ぐリブ７を設けたので、ヒートシンク
本体１の取付壁２の係合部６を介して外部の工作機械に
取り付けた際に、制御機器８とヒートシンク本体１の取
付壁３における接続部が強固となり固有振動数が高くな
ることから、高振動下でも機械が発生する振動に耐える
ことができ、動作を安定にすることができる。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1A and 1B are a heat sink for a control device showing an embodiment of the present invention, wherein FIG. 1A is a front view and FIG. 1B is a side sectional view taken along the line AA of FIG. It should be noted that description of the components of the present invention that are the same as those of the prior art will be omitted, and only different points will be described. In FIG. 1, 7
Is a rib. The present invention is different from the prior art in the following points. That is, at least one rib 7 forming a wall connecting the mounting wall 2 and the fin 3 is provided between the mounting wall 2 and the fin 3, and at least one rib 7 is also provided between the fins 3 and 3. It is a point. As described above, in the first embodiment, since the rib 7 connecting the mounting wall 2 and the fin 3 is provided between the mounting wall 2 and the fin 3, the engaging portion 6 of the mounting wall 2 of the heat sink body 1 is interposed. When mounted on an external machine tool, the control device 8 and the heat sink body 1 have a strong connection at the mounting wall 3 and a high natural frequency, so that the machine can withstand the vibration generated even under high vibration. , The operation can be stabilized.
【０００６】図２は本発明の第２の実施例を示す制御機
器用ヒートシンクであって、（ａ）は正面図、（ｂ）は
（ａ）の矢視Ａ−Ａ線に沿う側断面図である。第２の実
施例が第１の実施例と異なる点は、リブ７を、取付壁２
の係合部６の近傍に設けた点である。このように、第２
の実施例はリブ７を取付壁２の係合部６の近傍に設けた
ので、ヒートシンク本体１の取付壁２の係合部６を介し
て外部の工作機械に取り付けた際に、第１の実施例に比
べて制御機器８とヒートシンクの取付壁２における接続
部がより強固となる上、固有振動数もさらに高くするこ
とができる。2A and 2B show a heat sink for a control device according to a second embodiment of the present invention, wherein FIG. 2A is a front view and FIG. 2B is a side sectional view taken along the line A--A of FIG. Is. The second embodiment is different from the first embodiment in that the rib 7 is attached to the mounting wall 2
This is a point provided in the vicinity of the engaging portion 6 of. Thus, the second
In this embodiment, since the rib 7 is provided in the vicinity of the engaging portion 6 of the mounting wall 2, when the rib 7 is attached to an external machine tool via the engaging portion 6 of the mounting wall 2 of the heat sink body 1, the first As compared with the embodiment, the connecting portion between the control device 8 and the heat sink on the mounting wall 2 becomes stronger, and the natural frequency can be further increased.
【０００７】図３は本発明の第３の実施例を示す制御機
器用ヒートシンクであって、（ａ）は正面図、（ｂ）は
矢視Ａ−Ａ線に沿う側断面図である。第３の実施例が第
２の実施例と異なる点は、リブ７の断面形状を長辺の２
角の角度が６０度以下とする三角形状とすると共に、当
該リブ７の長辺をベース部７Ａとなるように配置した点
である。このように。第３の実施例はリブ７の断面形状
をその長辺の角度が６０度以下とする三角形状にしたの
で、ヒートシンク本体１の取付壁２の係合部６を介して
外部の工作機械に取り付けた際に、第１および第２の実
施例に比べて制御機器８とヒートシンクの取付壁２にお
ける接続部がより強固となり固有振動数を高くできるこ
とは言うまでもない。また、リブ７の断面形状を三角形
状とすることで、ヒートシンクとなるアルミダイカスト
を金型から抜く際の抵抗を小さくすることができるの
で、ダイカストの変形を抑えることができ、しかもダイ
カスト時にできる押出しピンをヒートシンクのフィン側
からなくすことができる。その結果、押出しピン跡５が
ヒートシンク１の表面からなくなるので、ヒートシンク
１の外観を良好にすることができる。FIG. 3 is a heat sink for control equipment showing a third embodiment of the present invention, wherein (a) is a front view and (b) is a side sectional view taken along the line AA of the arrow. The third embodiment is different from the second embodiment in that the cross-sectional shape of the rib 7 is 2 on the long side.
This is a point in which a triangular shape having an angle of 60 degrees or less and a long side of the rib 7 is arranged to serve as a base portion 7A. in this way. In the third embodiment, the rib 7 has a triangular cross-section with the long side having an angle of 60 degrees or less. Therefore, the rib 7 is attached to an external machine tool through the engaging portion 6 of the attachment wall 2 of the heat sink body 1. It goes without saying that, in this case, the connecting portion of the control device 8 and the heat sink on the mounting wall 2 becomes stronger and the natural frequency can be increased as compared with the first and second embodiments. Further, since the rib 7 has a triangular cross-sectional shape, it is possible to reduce the resistance when the aluminum die cast serving as the heat sink is removed from the mold, so that the deformation of the die cast can be suppressed and the extrusion that can be performed at the time of die casting. The pin can be removed from the fin side of the heat sink. As a result, since the push-out pin mark 5 disappears from the surface of the heat sink 1, the appearance of the heat sink 1 can be improved.
【０００８】[0008]
【発明の効果】以上述べたように、本発明によれば次の
ような効果がある。
（１）第１の実施例は、取付壁とフィンの間に取付壁と
フィンを繋ぐリブを設けたため、ヒートシンク本体の取
付壁の係合部を介して外部の工作機械に取り付けた際
に、制御機器とヒートシンク本体の取付壁における接続
部が強固となり固有振動数が高くなることから、高振動
下でも機械が発生する振動に耐えることができ、動作を
安定にすることができる。
（２）第２の実施例は、リブを取付壁の係合部の近傍に
設けたため、ヒートシンク本体の取付壁の係合部を介し
て外部の工作機械に取り付けた際に、第１の実施例に比
べて制御機器とヒートシンクの取付壁における接続部が
より強固となる上、固有振動数もさらに高くすることが
できる。
（３）第３の実施例は、リブの断面形状をその長辺の角
度が６０度以下とする三角形状にしたため、ヒートシン
ク本体の取付壁の係合部を介して外部の工作機械に取り
付けた際に、第１および第２の実施例に比べて制御機器
とヒートシンクの取付壁における接続部がより強固とな
り固有振動数を高くできる。また、リブの断面形状を三
角形状とすることで、ヒートシンクとなるアルミダイカ
ストを金型から抜く際の抵抗を小さくすることができる
ので、ダイカストの変形を抑えることができ、しかもダ
イカスト時にできる押出しピンをフィン側からなくすこ
とができる。その結果、押出しピン跡がヒートシンク表
面からなくなるので、ヒートシンクの外観を良好にする
ことができる。As described above, the present invention has the following effects. (1) In the first embodiment, since the rib connecting the mounting wall and the fin is provided between the mounting wall and the fin, when the rib is mounted on the external machine tool through the engaging portion of the mounting wall of the heat sink body, Since the connection part between the control device and the heat sink main body is strong and the natural frequency is high, it is possible to withstand the vibration generated by the machine even under high vibration and stabilize the operation. (2) In the second embodiment, since the rib is provided near the engaging portion of the mounting wall, the first embodiment is performed when the rib is attached to the external machine tool through the engaging portion of the mounting wall of the heat sink body. Compared to the example, the connection between the control device and the heat sink on the mounting wall becomes stronger, and the natural frequency can be further increased. (3) In the third embodiment, since the rib has a triangular cross-section with the long side having an angle of 60 degrees or less, the rib is attached to an external machine tool through the engaging portion of the attachment wall of the heat sink body. At this time, compared to the first and second embodiments, the connecting portion of the mounting wall of the control device and the heat sink becomes stronger and the natural frequency can be increased. Also, by making the rib cross-section into a triangular shape, it is possible to reduce the resistance when removing the aluminum die cast, which is the heat sink, from the mold, so that the deformation of the die cast can be suppressed, and the extrusion pin that can be used at the time of die casting. Can be eliminated from the fin side. As a result, the extruded pin marks are removed from the surface of the heat sink, so that the appearance of the heat sink can be improved.
【図１】 本発明の第１の実施例を示すヒートシンクで
あって、（ａ）は正面図、（ｂ）は（ａ）の矢視Ａ−Ａ
線に沿う側断面図である。FIG. 1 is a heat sink showing a first embodiment of the present invention, in which (a) is a front view and (b) is an arrow AA of (a).
It is a side sectional view which follows a line.
【図２】 本発明の第２の実施例を示すヒートシンクで
あって、（ａ）は正面図、（ｂ）は（ａ）の矢視Ａ−Ａ
線に沿う側断面図である。FIG. 2 is a heat sink showing a second embodiment of the present invention, in which (a) is a front view and (b) is an arrow AA of (a).
It is a side sectional view which follows a line.
【図３】 本発明の第３の実施例を示すヒートシンクで
あって、（ａ）は正面図、（ｂ）は（ａ）の矢視Ａ−Ａ
線に沿う側断面図である。FIG. 3 is a heat sink showing a third embodiment of the present invention, wherein (a) is a front view and (b) is an arrow AA of (a).
It is a side sectional view which follows a line.
【図４】 従来技術のヒートシンクを示す図で、（ａ）
は平面図、（ｂ）は（ａ）の矢視Ｂ方向から見た側面図
である。FIG. 4 is a diagram showing a conventional heat sink,
Is a plan view and (b) is a side view seen from the direction of arrow B in (a).
【図５】 ヒートシンクを制御機器に取り付けた状態を
示す概観図である。FIG. 5 is a schematic view showing a state in which a heat sink is attached to a control device.
１ ヒートシンク本体、 ２ 取付壁、 ３ フィン、 ４ ベース部、 ４Ａ 曲率部、 ５ 押出しピン跡、 ６ 係合部、 ７ リブ、 ８ 制御機器 1 heat sink body, 2 mounting walls, Three fins, 4 base part, 4A curvature part, 5 Extrusion pin marks, 6 engaging part, 7 ribs, 8 control equipment
───────────────────────────────────────────────────── フロントページの続き (72)発明者 前田 高志 福岡県北九州市八幡西区黒崎城石２番１号 株式会社安川電機内 Ｆターム(参考） 5E322 AA01 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Takashi Maeda 2-1, Kurosaki Shiroishi, Hachiman Nishi-ku, Kitakyushu City, Fukuoka Prefecture Yasukawa Electric Co., Ltd. F-term (reference) 5E322 AA01
Claims (4)
を取り付けるための平板状のベース部と、前記ベース部
に複数配設されたフィンと、前記ベース部の一端に設け
られ、前記フィンと対向して配置された外部の筐体など
に取り付けるための取付壁と、を一体に配設した制御機
器用ヒートシンクであって、 前記取付壁と前記フィンの間に、前記取付壁と前記フィ
ンを繋ぐ壁を形成するリブを少なくとも１箇所設けたこ
とを特徴とする制御機器用ヒートシンク。1. A flat plate-shaped base portion for mounting a high-thermal electronic component mounted on a control device, a plurality of fins arranged on the base portion, and a fin provided at one end of the base portion. A heat sink for a control device, in which a mounting wall for mounting to an external housing or the like arranged facing each other is integrally disposed, wherein the mounting wall and the fin are provided between the mounting wall and the fin. A heat sink for a control device, which is provided with at least one rib forming a connecting wall.
とも１箇所設けたことを特徴とする請求項１記載の制御
機器用ヒートシンク。2. The heat sink for a control device according to claim 1, wherein the rib is provided at least at one place between the fins.
ための係合部を設け、前記リブを前記係合部の近傍に設
けたことを特徴とする請求項１また２に記載の制御機器
用ヒートシンク。3. The control according to claim 1, wherein the mounting wall is provided with an engaging portion for attaching an external housing or the like, and the rib is provided in the vicinity of the engaging portion. Heat sink for equipment.
６０度以下とする三角形状とすると共に、当該リブの長
辺を前記ベース部となるように配置したことを特徴とす
る請求項１から３までの何れか１項に記載の制御機器用
ヒートシンク。4. The rib has a cross-sectional shape of a triangle whose two long sides have an angle of 60 degrees or less, and the long sides of the ribs are arranged to serve as the base portion. The heat sink for control equipment according to any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001344444A JP4342132B2 (en) | 2001-11-09 | 2001-11-09 | Heat sink and control equipment for control equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001344444A JP4342132B2 (en) | 2001-11-09 | 2001-11-09 | Heat sink and control equipment for control equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003152370A true JP2003152370A (en) | 2003-05-23 |
| JP4342132B2 JP4342132B2 (en) | 2009-10-14 |
Family
ID=19157973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001344444A Expired - Fee Related JP4342132B2 (en) | 2001-11-09 | 2001-11-09 | Heat sink and control equipment for control equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4342132B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015037135A (en) * | 2013-08-14 | 2015-02-23 | 株式会社日立製作所 | On-vehicle device |
| JP2016139708A (en) * | 2015-01-28 | 2016-08-04 | Tdk株式会社 | Heat sink |
| CN113720529A (en) * | 2021-08-23 | 2021-11-30 | 深圳市华科星电气有限公司 | High-response floor type servo motor driver with load inertia detection function |
-
2001
- 2001-11-09 JP JP2001344444A patent/JP4342132B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015037135A (en) * | 2013-08-14 | 2015-02-23 | 株式会社日立製作所 | On-vehicle device |
| JP2016139708A (en) * | 2015-01-28 | 2016-08-04 | Tdk株式会社 | Heat sink |
| CN113720529A (en) * | 2021-08-23 | 2021-11-30 | 深圳市华科星电气有限公司 | High-response floor type servo motor driver with load inertia detection function |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4342132B2 (en) | 2009-10-14 |
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