JP2005198466A - Motor stator structure - Google Patents

Motor stator structure Download PDF

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Publication number
JP2005198466A
JP2005198466A JP2004004521A JP2004004521A JP2005198466A JP 2005198466 A JP2005198466 A JP 2005198466A JP 2004004521 A JP2004004521 A JP 2004004521A JP 2004004521 A JP2004004521 A JP 2004004521A JP 2005198466 A JP2005198466 A JP 2005198466A
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nitride
stator
mold resin
kinds
motor
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JP2004004521A
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Japanese (ja)
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Tsuneo Sugiura
恒雄 杉浦
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Tamagawa Seiki Co Ltd
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Tamagawa Seiki Co Ltd
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  • Iron Core Of Rotating Electric Machines (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To enhance insulation resistance and heat dissipation performance by mixing one kind, a plurality of kinds or all kinds of aluminium nitride, boron nitride, silicon nitride, aluminium oxide, silicon oxide, ferrite and aluminium nitride ultrafine particles (nano powder) into mold resin. <P>SOLUTION: Insulation resistance and heat dissipation performance of a motor stator structure are enhanced by forming a stator winding (2) provided in a ring stator core (1) of mold resin (5) mixed with one kind, a plurality of kinds or all kinds of aluminium nitride, boron nitride, silicon nitride, aluminium oxide, silicon oxide, ferrite and aluminium nitride ultrafine particles (nano powder). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、モータステータ構造に関し、特に、ステータ巻線をモールドするためのモールド樹脂内に窒化アルミニウム、窒化ホウ素、窒化ケイ素、酸化アルミニウム、酸化ケイ素、フェライト及び窒化アルミニウム超微粒子(ナノパウダー)の1種又は複数種又は全種を混合することにより、耐絶縁性及び放熱性を向上されるための新規な改良に関する。   The present invention relates to a motor stator structure, and in particular, one of aluminum nitride, boron nitride, silicon nitride, aluminum oxide, silicon oxide, ferrite, and aluminum nitride ultrafine particles (nano powder) in a mold resin for molding a stator winding. It is related with the novel improvement for improving insulation resistance and heat dissipation by mixing seed | species or multiple types, or all seed | species.

従来、用いられていたこの種のモータ鉄心構造としては、図2及び図3で示される構成(非特許文献1参照)がある。
すなわち、図2及び図3において符号1で示されるものは、固定子巻線2を有する輪状固定子鉄心であり、この輪状固定子鉄心1の各磁極1aの内側には、永久磁石3を有する回転子鉄心4が回転自在に配設されている。
Conventionally, this type of motor core structure that has been used includes the configuration shown in FIGS. 2 and 3 (see Non-Patent Document 1).
That is, what is indicated by reference numeral 1 in FIGS. 2 and 3 is a ring-shaped stator core having a stator winding 2, and a permanent magnet 3 is provided inside each magnetic pole 1 a of the ring-shaped stator core 1. A rotor core 4 is rotatably disposed.

前記固定子巻線2を覆うために設けられたモールド樹脂5は、前記固定子巻線2全体を覆うと共に、その外周5aは輪状固定子鉄心1の外周1bとほぼ一致している。
前記固定子巻線2は、U相、V相、W相の三相構成よりなり、各相に駆動信号を印加することにより、三相駆動によって回転子鉄心4を回転駆動することができる。
Mold resin 5 provided to cover the stator winding 2 covers the entire stator winding 2, and its outer periphery 5 a substantially coincides with the outer periphery 1 b of the annular stator core 1.
The stator winding 2 has a three-phase configuration of a U phase, a V phase, and a W phase. By applying a drive signal to each phase, the rotor core 4 can be rotationally driven by three-phase driving.

安川電機技報、1992年2月 114〜119頁、「高性能ACサーボモータΣシリーズ」Yaskawa Electric Technical Report, February 1992, pages 114-119, "High Performance AC Servo Motor Σ Series"

従来のモータ鉄心構造は、以上のように構成されていたため、次のような課題が存在していた。
すなわち、輪状固定子鉄心及び固定子巻線をモールド樹脂によって形成しているが、このモールド樹脂の熱伝導性すなわち放熱性が悪く(銅の1/100以下)、モータとしてのパワーアップには限度があった。
また、このモールド樹脂の中に金属粉やカーボン類の熱伝導性物質を混合することも考えられるが、この熱伝導性物質は同時に良電導性でもあるため、逆に、固定子巻線の電気絶縁性を十分に保つことは困難であった。
Since the conventional motor core structure is configured as described above, the following problems exist.
In other words, the ring-shaped stator core and the stator winding are made of mold resin, but the heat conductivity, that is, heat dissipation of this mold resin is poor (below 1/100 of copper), and the power up as a motor is limited was there.
It is also conceivable to mix a metal powder or carbon heat conductive material into the mold resin. However, since this heat conductive material is also highly conductive, conversely, the electric power of the stator winding It was difficult to maintain sufficient insulation.

本発明によるモータステータ構造は、スロットを有するか又は有しない輪状固定子鉄心に固定子巻線を有し、前記輪状固定子鉄心に設けられた前記固定子巻線をモールド樹脂で覆うようにしたモータステータ構造において、前記モールド樹脂中には、少なくとも窒化アルミニウム、窒化ホウ素、窒化ケイ素、酸化アルミニウム、酸化ケイ素、フェライトの1種又は複数種又は全種が混合されている構成であり、また、前記モールド樹脂中には、窒化アルミニウム超微粒子が混合されている構成である。   In the motor stator structure according to the present invention, a stator winding is provided on an annular stator core with or without a slot, and the stator winding provided on the annular stator core is covered with a mold resin. In the motor stator structure, the mold resin has a configuration in which at least one kind or plural kinds or all kinds of aluminum nitride, boron nitride, silicon nitride, aluminum oxide, silicon oxide, and ferrite are mixed, and In the mold resin, aluminum nitride ultrafine particles are mixed.

本発明によるモータステータ構造は、以上のように構成されているため、次のような効果を得ることができる。
すなわち、モールド樹脂の中に、優れた熱伝導性をもち、かつ、良好な電気絶縁性を有する窒化アルミニウム、窒化ホウ素、窒化ケイ素、酸化アルミニウム、酸化ケイ素、フェライト及び窒化アルミニウム超微粒子(ナノパウダー)の1種又は複数種又は全種を混合させているため、モータの損失による熱を外部に十分に放熱することができ、発熱を抑えて高出力を発生させることができる。
Since the motor stator structure according to the present invention is configured as described above, the following effects can be obtained.
That is, aluminum nitride, boron nitride, silicon nitride, aluminum oxide, silicon oxide, ferrite, and aluminum nitride ultrafine particles (nano powder) having excellent thermal conductivity and good electrical insulation in the mold resin Therefore, the heat generated by the motor loss can be sufficiently dissipated to the outside, and heat generation can be suppressed and high output can be generated.

本発明は、モールド樹脂の中に、窒化アルミニウム、窒化ホウ素、窒化ケイ素、酸化アルミニウム、酸化ケイ素、フェライト及び窒化アルミニウム超微粒子(ナノパウダー)の1種又は複数種又は全種を混入しているため、放熱性にすぐれた、かつ、電気絶縁性の高いモータステータ構造を得ることを目的とする。   In the present invention, one or more or all of aluminum nitride, boron nitride, silicon nitride, aluminum oxide, silicon oxide, ferrite, and aluminum nitride ultrafine particles (nano powder) are mixed in the mold resin. An object of the present invention is to obtain a motor stator structure with excellent heat dissipation and high electrical insulation.

以下、図面と共に本発明によるモータステータ構造の好適な実施の形態について説明する。
尚、従来例と同一又は同等部分には同一符号を付して説明する。
図1において符号1で示されるものは、固定子巻線2をスロット1aに有する輪状固定子鉄心であり、この輪状固定子鉄心1と固定子巻線2によって固定子10が構成されている。
A preferred embodiment of a motor stator structure according to the present invention will be described below with reference to the drawings.
In addition, the same code | symbol is attached | subjected and demonstrated to a part the same as that of a prior art example, or an equivalent part.
What is indicated by reference numeral 1 in FIG. 1 is a ring-shaped stator core having a stator winding 2 in a slot 1 a, and a stator 10 is constituted by the ring-shaped stator core 1 and the stator winding 2.

前記固定子10は、前蓋11を一体に有するモータケース12の内面に固定され、この固定子10の固定子巻線2と輪状固定子鉄心1とはモールド樹脂5で一体に固定されている。   The stator 10 is fixed to the inner surface of a motor case 12 integrally having a front lid 11, and the stator winding 2 and the annular stator core 1 of the stator 10 are fixed integrally with a mold resin 5. .

前記モールド樹脂5内には、優れた熱伝導性を有し、かつ、良好な電気絶縁性を有する工業用の窒化アルミニウム、窒化ホウ素、窒化ケイ素、酸化アルミニウム、酸化ケイ素、フェライト及び窒化アルミニウム超微粒子(ナノパウダー)の1種又は複数種又は全種が混合されているため、固定子巻線2の発熱を極めて効率的に放熱し、モータ自体の温度上昇を抑えることができる。   In the mold resin 5, industrial aluminum nitride, boron nitride, silicon nitride, aluminum oxide, silicon oxide, ferrite and aluminum nitride ultrafine particles having excellent thermal conductivity and good electrical insulation properties Since one type, a plurality of types, or all types of (nano powder) are mixed, the heat generated by the stator winding 2 can be radiated extremely efficiently, and the temperature rise of the motor itself can be suppressed.

前記モータケース12には、後蓋13が取付けられ、この前蓋11と後蓋13に設けられた各軸受14、15には、回転子鉄心4を有する回転軸16が回転自在に設けられている。
尚、前述の形態においては、スロット1aを有する輪状固定子鉄心1について述べたが、スロット1aを有しないスロットレスの輪状固定子鉄心1についても同様の作用効果を得ることができる。
A rear cover 13 is attached to the motor case 12, and a rotary shaft 16 having a rotor core 4 is rotatably provided on each of the bearings 14 and 15 provided on the front cover 11 and the rear cover 13. Yes.
In the above-described embodiment, the annular stator core 1 having the slot 1a has been described. However, the same effect can be obtained for the slotless annular stator core 1 having no slot 1a.

本発明は、モータ用としてだけではなく、発熱性回路等のヒートシンクとしても適用可である。   The present invention can be applied not only to a motor but also to a heat sink such as a heat generating circuit.

本発明のモータステータ構造を示す断面図である。It is sectional drawing which shows the motor stator structure of this invention. 従来のモータステータ構造を示す半断面図である。It is a half sectional view showing a conventional motor stator structure. 図2の縦断面図である。It is a longitudinal cross-sectional view of FIG.

符号の説明Explanation of symbols

1 輪状固定子鉄心
2 固定子巻線
5 モールド樹脂
10 固定子
12 モータケース
16 回転軸
DESCRIPTION OF SYMBOLS 1 Ring-shaped stator iron core 2 Stator winding 5 Mold resin 10 Stator 12 Motor case 16 Rotating shaft

Claims (2)

スロットを有するか又は有しない輪状固定子鉄心(1)に固定子巻線を有し、前記輪状固定子鉄心(1)に設けられた前記固定子巻線(2)をモールド樹脂(5)で覆うようにしたモータステータ構造において、
前記モールド樹脂(5)中には、少なくとも窒化アルミニウム、窒化ホウ素、窒化ケイ素、酸化アルミニウム、酸化ケイ素、フェライトの1種又は複数種又は全種が混合されていることを特徴とするモータステータ構造。
An annular stator core (1) with or without slots has a stator winding, and the stator winding (2) provided on the annular stator core (1) is molded resin (5). In the motor stator structure covered,
A motor stator structure in which at least one kind, plural kinds, or all kinds of aluminum nitride, boron nitride, silicon nitride, aluminum oxide, silicon oxide, and ferrite are mixed in the mold resin (5).
前記モールド樹脂(5)中には、窒化アルミニウム超微粒子が混合されていることを特徴とする請求項1記載のモータステータ構造。   The motor stator structure according to claim 1, wherein the mold resin (5) is mixed with ultrafine aluminum nitride particles.
JP2004004521A 2004-01-09 2004-01-09 Motor stator structure Withdrawn JP2005198466A (en)

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Application Number Priority Date Filing Date Title
JP2004004521A JP2005198466A (en) 2004-01-09 2004-01-09 Motor stator structure

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007060834A (en) * 2005-08-25 2007-03-08 Fuji Heavy Ind Ltd Electric motor
JP2007185020A (en) * 2006-01-05 2007-07-19 Hitachi Ltd Dynamo-electric machine, invertor drive dynamo-electric machine system, and inspection method
WO2007121367A2 (en) * 2006-04-13 2007-10-25 Ciiis. Llc Generator for a portable device having a reciprocating coil system
JPWO2008020511A1 (en) * 2006-08-18 2010-01-07 株式会社Ihi Electric turbocharger
JP2014023290A (en) * 2012-07-19 2014-02-03 Tamagawa Seiki Co Ltd Rotary machine structure

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007060834A (en) * 2005-08-25 2007-03-08 Fuji Heavy Ind Ltd Electric motor
JP4700439B2 (en) * 2005-08-25 2011-06-15 富士重工業株式会社 Electric motor
JP2007185020A (en) * 2006-01-05 2007-07-19 Hitachi Ltd Dynamo-electric machine, invertor drive dynamo-electric machine system, and inspection method
WO2007121367A2 (en) * 2006-04-13 2007-10-25 Ciiis. Llc Generator for a portable device having a reciprocating coil system
WO2007121367A3 (en) * 2006-04-13 2008-02-21 Ciiis Llc Generator for a portable device having a reciprocating coil system
JPWO2008020511A1 (en) * 2006-08-18 2010-01-07 株式会社Ihi Electric turbocharger
JP2014023290A (en) * 2012-07-19 2014-02-03 Tamagawa Seiki Co Ltd Rotary machine structure

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