JP2007059540A - Motor controller - Google Patents

Motor controller Download PDF

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Publication number
JP2007059540A
JP2007059540A JP2005241426A JP2005241426A JP2007059540A JP 2007059540 A JP2007059540 A JP 2007059540A JP 2005241426 A JP2005241426 A JP 2005241426A JP 2005241426 A JP2005241426 A JP 2005241426A JP 2007059540 A JP2007059540 A JP 2007059540A
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Prior art keywords
heat sink
cooling
heat
motor control
motor controller
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Pending
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JP2005241426A
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Japanese (ja)
Inventor
Toshio Komata
敏雄 小俣
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Yaskawa Electric Corp
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Yaskawa Electric Corp
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Application filed by Yaskawa Electric Corp filed Critical Yaskawa Electric Corp
Priority to JP2005241426A priority Critical patent/JP2007059540A/en
Publication of JP2007059540A publication Critical patent/JP2007059540A/en
Pending legal-status Critical Current

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  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a motor controller excellently transferring the heat of a heat sink to the front ends of cooling fins and being capable of improving a cooling effect. <P>SOLUTION: The motor controller has a control unit with a built-in control circuit or the like, the heat sink 4 fitted beside the control unit and a cooler composed of a plurality of the tabular cooling fins 5 unified with the heat sink. In the motor controller, the thicknesses of roots on the heat sink sides of the cooling fins are made thicker than those of the front ends, and the thicknesses are equalized from the roots to central sections or approximately the central sections. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、インバータやサーボパックなどのモータ制御装置に関するもので、特にヒートシンクの冷却フィン構造に関するものである。   The present invention relates to a motor control device such as an inverter or a servo pack, and more particularly to a cooling fin structure of a heat sink.

図２に従来のモータ制御装置を示す。
モータ制御装置１は、制御回路等を内蔵した制御部２と、前記制御部で発生した熱を外部に排出するための冷却部３とを有して構成されている。なお、前記冷却部３は、ヒートシンク１４と、このヒートシンク１４に取り付けられた冷却フィン１５と、前記冷却フィン１５間に冷却風を送り込む冷却ファン６とからなっている。前記冷却フィン１５は、図３に示すように、薄く長い板状に構成され、冷却風の通路を形成するため所定の間隔をあけて複数枚並設されている(例えば、特許文献１参照)。
前記冷却フィン１５の傍らには冷却ファン６が配置され、前記冷却フィン間に冷却風を送っている。
前記モータ制御装置１においては、前記制御部２からの熱を前記ヒートシンク１４に伝え、さらにヒートシンク１４から冷却フィン１５へと熱を伝え、冷却フィン１５に冷却ファン６で発生した冷却風を当てることにより冷却フィン１５から外気に放熱して装置の冷却をしている。
特開平６−２１３５８８号公報 FIG. 2 shows a conventional motor control device.
The motor control device 1 includes a control unit 2 having a built-in control circuit and the like, and a cooling unit 3 for discharging heat generated by the control unit to the outside. The cooling unit 3 includes a heat sink 14, cooling fins 15 attached to the heat sink 14, and a cooling fan 6 that sends cooling air between the cooling fins 15. As shown in FIG. 3, the cooling fins 15 are formed in a thin and long plate shape, and a plurality of cooling fins 15 are arranged in parallel at predetermined intervals to form a cooling air passage (see, for example, Patent Document 1). .
A cooling fan 6 is disposed beside the cooling fin 15 and sends cooling air between the cooling fins.
In the motor control device 1, heat from the control unit 2 is transmitted to the heat sink 14, heat is further transmitted from the heat sink 14 to the cooling fin 15, and the cooling air generated by the cooling fan 6 is applied to the cooling fin 15. Thus, heat is radiated from the cooling fins 15 to the outside air to cool the apparatus.
JP-A-6-213588

しかしながら、このような従来技術においては、次のような問題があった。すなわち、ヒートシンクに取り付けられる冷却フィンは、一般的に薄くして枚数を多くするとともに、冷却風の通りをよくしている。しかし、薄いために、長くなるとヒートシンクからの熱が先端側に伝わりにくくなり、熱が均等に冷却フィンに伝わらず効果的な冷却ができない。
本発明は、このような問題を解決するためになされたもので、ヒートシンクの熱が冷却フィンの先端部まで良好に届き、冷却効果を向上させることができるモータ制御装置を提供することを目的とするものである。 However, such conventional techniques have the following problems. That is, the cooling fins attached to the heat sink are generally thin to increase the number of sheets and improve the flow of cooling air. However, since it is thin, it becomes difficult for heat from the heat sink to be transferred to the tip side when it is long, and heat is not transmitted uniformly to the cooling fins, so that effective cooling cannot be performed.
The present invention has been made to solve such a problem, and an object of the present invention is to provide a motor control device in which the heat of the heat sink can reach the tip of the cooling fin well and the cooling effect can be improved. To do.

上記課題を解決するため、本発明は、制御部と、前記制御部の傍らに設けられたヒートシンクと、ヒートシンクと一体化した板状の複数枚の冷却フィンとからなる冷却部とを有するモータ制御装置において、冷却フィンのヒートシンク側の根元部の厚みを先端部の厚みより厚くし、かつ根元部から中央部もしくは略中央部までの厚みを等しくしたものである。   In order to solve the above problems, the present invention provides a motor control including a control unit, a heat sink provided beside the control unit, and a cooling unit including a plurality of plate-like cooling fins integrated with the heat sink. In the apparatus, the thickness of the root portion on the heat sink side of the cooling fin is made thicker than the thickness of the tip portion, and the thickness from the root portion to the center portion or substantially the center portion is made equal.

本発明によれば、冷却フィンのヒートシンク側の根元部の厚みを先端部の厚みより厚くし、かつ根元部から中央部もしくは略中央部までの厚みを等しくすることにより、ヒートシンクの熱を冷却フィンの中央部分まで急速に伝えることができ、かつ厚みが薄くなる中央部分から先端部までの距離を短くして先端側にも熱を良好に伝えることができる。したがって、冷却フィン全体に熱が均等に伝わり冷却フィンが有効活用されてモータ制御装置における冷却効果が向上する。   According to the present invention, the heat sink heat is reduced by making the thickness of the root portion of the cooling fin on the heat sink side larger than the thickness of the tip portion and equalizing the thickness from the root portion to the central portion or substantially the central portion. It is possible to transmit the heat quickly to the central portion, and to transfer the heat to the distal end side well by shortening the distance from the central portion where the thickness is reduced to the distal end portion. Therefore, heat is evenly transmitted to the entire cooling fin, and the cooling fin is effectively used to improve the cooling effect in the motor control device.

以下、本発明の実施例を図に基づいて説明する。   Embodiments of the present invention will be described below with reference to the drawings.

図１は、本発明の実施例におけるモータ制御装置の冷却フィン構造を示す正断面図である。
本発明のモータ制御装置においては、ヒートシンク４に複数枚並設して設ける冷却フィン５を、厚肉部５ａと薄肉部５ｂとで構成している。前記厚肉部５ａは、ヒートシンク４側の根元部から中央部もしくは略中央部までとし、中央部もしくは略中央部から先端部までに構成される薄肉部５ｂよりも厚みより厚くしている。また、前記厚肉部５ａは、根元部から中央部もしくは略中央部までの厚みを等しくしている。
このような構成において、モータ制御装置１の制御部２で発生した熱は、従来と同様に冷却部３のヒートシンク４に伝達されるが、冷却フィン５の根元部が厚肉部５ａを構成しているので、ヒートシンク４からの熱は冷却フィン５の厚肉部５ａに速やかに伝わる。また、厚肉部５ａから先端部にかけての薄肉部５ｂは、長さが短いので先端部まで熱が伝わりやすい。これにより、冷却フィン５全体に熱が均等に伝わり、冷却フィンが有効活用されてモータ制御装置における冷却効果が向上する。 FIG. 1 is a front sectional view showing a cooling fin structure of a motor control device according to an embodiment of the present invention.
In the motor control device of the present invention, a plurality of cooling fins 5 provided side by side on the heat sink 4 are composed of a thick portion 5a and a thin portion 5b. The thick part 5a extends from the base part on the heat sink 4 side to the central part or the substantially central part, and is thicker than the thin part 5b configured from the central part or substantially the central part to the tip part. The thick portion 5a has the same thickness from the base portion to the central portion or the substantially central portion.
In such a configuration, the heat generated by the control unit 2 of the motor control device 1 is transmitted to the heat sink 4 of the cooling unit 3 as in the conventional case, but the root portion of the cooling fin 5 forms the thick portion 5a. Therefore, the heat from the heat sink 4 is quickly transmitted to the thick part 5 a of the cooling fin 5. Moreover, since the thin part 5b from the thick part 5a to the front-end | tip part is short, heat | fever tends to be transmitted to a front-end | tip part. Thereby, heat is uniformly transmitted to the entire cooling fin 5, and the cooling fin is effectively used to improve the cooling effect in the motor control device.

本発明の実施例におけるモータ制御装置の冷却フィン構造を示す正断面図である。It is a front sectional view showing a cooling fin structure of a motor control device in an embodiment of the present invention. 従来技術におけるモータ制御装置を示す側面図である。It is a side view which shows the motor control apparatus in a prior art. 従来技術におけるモータ制御装置の冷却フィン構造を示す正断面図である。It is a front sectional view which shows the cooling fin structure of the motor control apparatus in a prior art.

符号の説明Explanation of symbols

１ モータ制御装置
２ 制御部
３ 冷却部
４，１４ ヒートシンク
５，１５ 冷却フィン
５ａ 厚肉部
５ｂ 薄肉部
６ 冷却ファン DESCRIPTION OF SYMBOLS 1 Motor control apparatus 2 Control part 3 Cooling part 4,14 Heat sink 5,15 Cooling fin 5a Thick part 5b Thin part 6 Cooling fan

Claims (1)

制御回路等を内蔵した制御部と、
前記制御部の傍らに設けられたヒートシンクと、このヒートシンクと一体化した板状の複数枚の冷却フィンとからなる冷却部と、
を有するモータ制御装置において、
前記冷却フィンのヒートシンク側の根元部の厚みを先端部の厚みより厚くし、かつ根元部から中央部もしくは略中央部までの厚みを等しくしたことを特徴とするモータ制御装置。 A control unit with a built-in control circuit and the like;
A cooling unit comprising a heat sink provided beside the control unit, and a plurality of plate-like cooling fins integrated with the heat sink;
In a motor control device having
The motor control device according to claim 1, wherein a thickness of a root portion on the heat sink side of the cooling fin is made larger than a thickness of a tip portion, and a thickness from the root portion to a central portion or a substantially central portion is made equal.
JP2005241426A 2005-08-23 2005-08-23 Motor controller Pending JP2007059540A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005241426A JP2007059540A (en) 2005-08-23 2005-08-23 Motor controller

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Application Number Priority Date Filing Date Title
JP2005241426A JP2007059540A (en) 2005-08-23 2005-08-23 Motor controller

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JP2007059540A true JP2007059540A (en) 2007-03-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104851854A (en) * 2015-05-15 2015-08-19 东莞市闻誉实业有限公司 Chip cooling assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104851854A (en) * 2015-05-15 2015-08-19 东莞市闻誉实业有限公司 Chip cooling assembly

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