JP3052573B2 - Outer rotor type rotary electric machine of direct drive type - Google Patents

Outer rotor type rotary electric machine of direct drive type

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Publication number
JP3052573B2
JP3052573B2 JP4135677A JP13567792A JP3052573B2 JP 3052573 B2 JP3052573 B2 JP 3052573B2 JP 4135677 A JP4135677 A JP 4135677A JP 13567792 A JP13567792 A JP 13567792A JP 3052573 B2 JP3052573 B2 JP 3052573B2
Authority
JP
Japan
Prior art keywords
mounting portion
bearing
outer rotor
shaft
stator
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 - Fee Related
Application number
JP4135677A
Other languages
Japanese (ja)
Other versions
JPH05308766A (en
Inventor
洋 中川
Original Assignee
神鋼電機株式会社
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 神鋼電機株式会社 filed Critical 神鋼電機株式会社
Priority to JP4135677A priority Critical patent/JP3052573B2/en
Publication of JPH05308766A publication Critical patent/JPH05308766A/en
Application granted granted Critical
Publication of JP3052573B2 publication Critical patent/JP3052573B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明はたとえば,ダイレクト・
ドライブ式のパルスモ−タ等のようなダイレクト・ドラ
イブ式のアウタロ−タ形回転電機の構造の改良に関す
る。
The present invention relates to, for example, direct
The present invention relates to an improvement in the structure of a direct drive type outer rotor type rotating electric machine such as a drive type pulse motor.

【0002】[0002]

【従来の技術】従来のものは,たとえば,実開平2−2
2083号に示すように構成されていた。これを図3を
用いて説明する。同図において,1はアウタロ−タ形の
ダイレクト・ドライブモ−タ(以下DDモ−タと略
す),2は,このDDモ−タ1の回転を検出するセンサ
部である磁気レゾルバである。また,11はDDモ−タ
1のステ−タ,12はそのロ−タ,13はロ−タ12を
ステ−タ11に回転可能に支持する軸受である。ステ−
タ11の内,111は円筒状のハウジングリング,11
2は非磁性体材料で構成されていてハウジングリング1
11の外周面に固定されたシ−ルドリング,113はシ
−ルドリング112の外周面に固定されたステ−タコア
である。114はステ−タコア113に巻かれたコイ
ル,115はステ−タコイル113のスタック間に挟み
込まれた永久磁石である。ステ−タコア113はコイル
114と永久磁石115が発生する磁界の磁気回路を構
成する。116はハウジングリング111が固定された
ハウジングケ−ス,117は軸受13を一端側から挟み
込むクランプである。ロ−タ12の内,121は円筒状
のハブリング,122はハブリング121の内周面に固
定されていてロ−タの磁気回路を構成するロ−タコア,
123と124はハブリング121が固定されたクラン
プハブ,125は軸受13を一端側から挟み込むクラン
プである。ステ−タコア113とロ−タコア122のギ
ャップ3は図示しないが軸受13の支持端付近では極力
小さくとり,支持端から自由端に向かうに従って大きく
する。このようなギャップ3はロ−タコア122をテ−
パ状に研削することによって形成されていた。磁気レゾ
ルバ2で,21と22は夫々ステ−タ11とロ−タ12
に一体に固定されたステ−タとロ−タである。ステ−タ
21はステ−タコア211とこれに巻かれたコイル21
2を有する。ロ−タ22はロ−タコア221を有する。
軸受13はクロスロ−ラ軸受であり,ロ−タ12と22
を片持支持している。なお,4はモ−タ取付部,5は回
転側であるクランプハブ123が連結される負荷取付部
である。
2. Description of the Related Art Conventionally, for example, Japanese Utility Model Laid-Open No. 2-2
No. 2083. This will be described with reference to FIG. In FIG. 1, reference numeral 1 denotes an outer rotor type direct drive motor (hereinafter abbreviated as DD motor), and reference numeral 2 denotes a magnetic resolver which is a sensor for detecting the rotation of the DD motor 1. Reference numeral 11 denotes a stator of the DD motor 1, reference numeral 12 denotes a rotor thereof, and reference numeral 13 denotes a bearing which rotatably supports the rotor 12 on the stator 11. Stay
111 is a cylindrical housing ring.
Reference numeral 2 denotes a housing ring made of a non-magnetic material.
Reference numeral 11 denotes a shield ring fixed to the outer peripheral surface of the shield ring, and 113 denotes a stator core fixed to the outer peripheral surface of the shield ring 112. 114 is a coil wound around the stator core 113, and 115 is a permanent magnet sandwiched between the stacks of the stator coils 113. The stator core 113 forms a magnetic circuit of a magnetic field generated by the coil 114 and the permanent magnet 115. 116 is a housing case to which the housing ring 111 is fixed, and 117 is a clamp for holding the bearing 13 from one end. Of the rotors 12, 121 is a cylindrical hub ring, 122 is a rotor core fixed to the inner peripheral surface of the hub ring 121 and constituting a magnetic circuit of the rotor,
Reference numerals 123 and 124 denote clamp hubs to which the hub ring 121 is fixed, and 125 denotes a clamp for sandwiching the bearing 13 from one end. Although not shown, the gap 3 between the stator core 113 and the rotor core 122 is made as small as possible near the support end of the bearing 13 and is increased from the support end to the free end. Such a gap 3 tapes the rotor core 122.
It was formed by grinding into a par. In the magnetic resolver 21, reference numerals 21 and 22 denote a stator 11 and a rotor 12, respectively.
And a rotor integrally fixed to the motor. The stator 21 includes a stator core 211 and a coil 21 wound therearound.
2 The rotor 22 has a rotor core 221.
The bearing 13 is a cross roller bearing, and the rotors 12 and 22
Is cantilevered. Reference numeral 4 denotes a motor mounting portion, and reference numeral 5 denotes a load mounting portion to which the clamp hub 123 on the rotating side is connected.

【0003】[0003]

【発明が解決しようとする課題】従来のものは上記のよ
うに,モ−タ取付部4から見てセンサ部である磁気レゾ
ルバ2,軸受13,モ−タ1,負荷取付部5の順で各部
が配置されており,モ−タ取付面4aと負荷取付面5a
間との距離は同図にLBで示すように可成りの長距離と
なっていた。即ち,モ−タ取付面4aは固定面であり,
この部分から負荷取付面5aを見るとモ−タ部は大きく
オ−バハングされているので少しの芯振れがあってもこ
れが大きく増幅され回転精度が低下するという問題点が
あった。また,従来のものでは,ギャップ3を軸受13
の自由端から支持端へ向かうに従って減少するように形
成していたが,この程度の対策では負荷取付部における
上記の芯振れ改善としては十分とはいえなかった。本発
明は従来のものの上記課題(問題点)を解決するように
したダイレクト・ドライブ式のアウタロ−タ形回転電機
を提供することを目的とする。
As described above, in the prior art, the magnetic resolver 2, which is a sensor, the bearing 13, the motor 1, and the load mounting portion 5 are arranged in this order as viewed from the motor mounting portion 4. Each part is arranged, and the motor mounting surface 4a and the load mounting surface 5a
Distance between had become long distance become soluble as shown by L B in FIG. That is, the motor mounting surface 4a is a fixed surface,
When the load mounting surface 5a is viewed from this portion, the motor portion is largely overhanged, so that even if there is a slight center runout, there is a problem that this is greatly amplified and the rotational accuracy is reduced. Further, in the conventional device, the gap 3 is fixed to the bearing 13.
However, this measure was not sufficient to improve the above-mentioned run-out in the load mounting part. SUMMARY OF THE INVENTION It is an object of the present invention to provide a direct drive type outer rotor type rotating electric machine which solves the above-mentioned problems (problems) of the prior art.

【0004】[0004]

【課題を解決する手段】本発明のダイレクト・ドライブ
式のアウタロータ形回転電機は,上記課題を解決するた
めに,固定されるシャフトと,このシャフトの外周に設
けられた巻線を備えたステータと,このステータと所定
間隙を隔てて回転可能に対向配置されるアウタロータ
と,このアウタロータを前記シャフトにおいて支承する
軸受と,回転検出用のセンサ部とを備えたダイレクト・
ドライブ式のアウタロータ形回転電機において,前記シ
ャフトの一方端をモータ取付部に固定すると共に,他方
端は負荷取付部側とし,この他方端部の外方で前記モー
タ取付部から前記負荷取付部側へ延びて前記軸受で支承
せられた前記アウタロータと,前記アウタロータの外周
部分に設けられた負荷取付部と,この負荷取付部内方に
設けられた前記回転検出用のセンサ部とを備え,この負
荷取付部の内方には,前記シャフト上にモータ取付部か
ら負荷取付部側に向かってステータ,軸受の固定側,セ
ンサの固定子が順次設けられ,前記アウタロータ及び前
記センサの回転子は,この順序で前記シャフトの負荷取
付部側に配置される前記軸受の回転側で支承されるよう
に構成した。
In order to solve the above-mentioned problems, a direct drive type outer rotor type rotating electric machine according to the present invention comprises a fixed shaft and a stator provided with a winding provided on the outer periphery of the shaft. A direct rotor including an outer rotor rotatably opposed to the stator with a predetermined gap therebetween, a bearing for supporting the outer rotor on the shaft, and a sensor unit for detecting rotation.
In a drive-type outer rotor type rotating electric machine, one end of the shaft is fixed to a motor mounting portion, the other end is on a load mounting portion side, and the other end portion is outside the motor mounting portion and on the load mounting portion side. The outer rotor supported by the bearings, a load mounting portion provided on an outer peripheral portion of the outer rotor, and the rotation detecting sensor portion provided inside the load mounting portion. Inside the mounting portion, a stator, a fixed side of the bearing, and a stator of the sensor are sequentially provided on the shaft from the motor mounting portion toward the load mounting portion, and the outer rotor and the rotor of the sensor are provided in this order. The shaft is arranged so as to be supported on the rotating side of the bearing arranged on the load mounting portion side of the shaft in order.

【0005】[0005]

【作用】本発明のものでは,軸受支持部とモ−タのステ
−タ側の支持部である回転軸が一体に連結され,かつ回
転側であるロ−タが連結される負荷取付面の近傍に軸受
部が配置され,軸受取付面と負荷取付面との距離は図1
にLAで示すようにセンサ部を介在させるだけの短い距
離となるため,オ−バハングは小さくなり,従って,芯
振れは小さくなる。なお,上記シャフトの自由端部に支
持される軸受を,回転電機の主ケ−シングに対して連結
される補助ケ−シングと上記シャフトに取り付けられる
軸受押さえとの間に介在して支持するように構成した場
合には,軸受支持部から右方の延長部分の構成は,溶接
等による連結手段で任意に一体構造の組み立てが行うこ
とができ,また,回転電機の容量の増大に伴い軸方向が
長くなっても,軸受支持部から負荷取付面迄の距離は一
定であり,回転電機の容量の増大に伴い芯振れの度合い
は変化しない
According to the present invention, the bearing mounting portion and the rotating shaft, which is the supporting portion on the stator side of the motor, are integrally connected, and the load mounting surface to which the rotor on the rotating side is connected. The bearing is located in the vicinity, and the distance between the bearing mounting surface and the load mounting surface is
Since the only short distance to interpose a sensor unit as shown by L A, the O - Bahangu decreases, therefore, runout decreases. The bearing supported at the free end of the shaft is supported between an auxiliary casing connected to the main casing of the rotating electric machine and a bearing retainer attached to the shaft. In this case, the right extension from the bearing support can be assembled as desired into an integral structure by connecting means such as welding. The distance from the bearing support to the load mounting surface is constant, and the degree of runout does not change as the capacity of the rotating electrical machine increases

【0006】[0006]

【実施例】以下図1及び図2に示す一実施例より本発明
を具体的に説明する。図1及び図2において,30はア
ウタロータであり,主ケーシング39に保持される内周
面に等間隔に歯部31a1,31a2,・・凹溝31b
1,31b2・・が交互に形成されたロータコアとなる磁
性部材と,各凹溝31b1,31b2・・に,隣り合うも
の同士の極性が互いに逆方向となるように各々挿入配置
された永久磁石32a1,32a2・・とから構成されて
いる。また,ステータ34は,A相磁極35A,B相磁
極35B,C相磁極35Cと,逆A相磁極35A′,逆
B相磁極35B′,逆C相磁極35C′が形成された鉄
心35と,これらの磁極35A〜35C′に各々巻回さ
れたコイル36A〜36C′とステータコア37から構
成され,アウタロータ30と所定間隔を隔てて対向配置
された上,シャフト38に固定される。以下の説明は,
主に図1を用いて説明するが,シャフト38の一方端
(図1で左方端)はモータ取付部41に対して固定用の
ネジ42により固定される。40は固定側に設けられる
左方エンドカバーで,その内周端はモータ取付部41側
の左方端に固定されると共に,外周端は主ケーシング3
9の左方端と小隙を隔てて対峙される。43は主ケーシ
ング39の右端に溶接等の連結手段で固着される補助ケ
ーシング,44は,クロスローラベアリング等の負荷側
に配置される軸受,44a〜44cは夫々軸受押さえ
で,図示のように夫々の軸受押さえ44a〜44cで軸
受44の周囲を押さえるように配置され,主ケーシング
39に保持されるアウタロータ30が補助ケーシング4
3を介して軸受44によりシャフト38の負荷取付部側
で支承され得るようにしている。45は,磁気レゾルバ
等のセンサ部で,このセンサ部45の回転子は主ケーシ
ング39に連結された補助ケーシング43側に設けら
れ,一方,センサ部45の固定子はシャフト38に連結
される軸受押さえ44b側に設けられる。46はシール
ド板でセンサ部45の右方端を覆うように配置され,軸
受押さえ44bの右方端に固定される。47は回転可能
に配置される右方エンドカバーで,その外周部は補助ケ
ーシング43の右方端に嵌着固定される。以上で本発明
の一実施例のダイレクト・ドライブ式のアウタロータ形
回転電機は構成され,符号43aで示す負荷取付面の箇
所で,負荷(図示せず)に対して取り付けられる。な
お,図1の実施例では,補助ケーシング43を主ケーシ
ング39に対して溶接等の手段で連結して負荷取付部側
(右方)へ延長すると共に,軸受押さえ44bはシャフ
ト38に溶接等の手段で固着し,軸方向の負荷側に延長
する構成例が,また,軸受押さえ44bと補助ケーシン
グ43,また,軸受押さえ44b,44cは夫々ネジ4
8,49で連結される構成例が示されているが,この固
着手段に限定されるものではない。本発明のダイレクト
・ドライブ式のアウタロータ形回転電機は,固定される
シャフトと,このシャフトの外周に設けられた巻線を備
えたステータと,このステータと所定間隙を隔てて回転
可能に対向配置されるアウタロータと,このアウタロー
タを前記シャフトにおいて支承する軸受と,回転検出用
のセンサ部とを備えたダイレクト・ドライブ式のアウタ
ロータ形回転電機において,前記シャフトの一方端をモ
ータ取付部に固定すると共に,他方端は負荷取付部側と
し,この他方端部の外方で前記モータ取付部から前記負
荷取付部側へ延びて前記軸受で支承せられた前記アウタ
ロータと,前記アウタロータの外周部分に設けられた負
荷取付部と,この負荷取付部内方に設けられた前記回転
検出用のセンサ部とを備え,この負荷取付部の内方に
は,前記シャフト上にモータ取付部から負荷取付部側に
向かってステータ,軸受の固定側,センサの固定子が順
次設けられ,前記アウタロータ及び前記センサの回転子
は,この順序で前記シャフトの負荷取付部側に配置され
る前記軸受の回転側で支承されるように構成し,従来例
のものの課題であった片持支持方式のこの種の回転電機
にとって宿命的な課題であった芯振れ作用の改善を,行
い得るようにした点に,その構成上の特徴がある。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to one embodiment shown in FIGS. 1 and 2, reference numeral 30 denotes an outer rotor, which has teeth 31a1, 31a2,...
The permanent magnets 32a1 are inserted and arranged in the concave grooves 31b1, 31b2... So that the polarities of the adjacent ones are opposite to each other. , 32a2... The stator 34 includes an iron core 35 having an A-phase magnetic pole 35A, a B-phase magnetic pole 35B, a C-phase magnetic pole 35C, an inverted A-phase magnetic pole 35A ', an inverted B-phase magnetic pole 35B', and an inverted C-phase magnetic pole 35C '. It is composed of coils 36A-36C 'wound around these magnetic poles 35A-35C', respectively, and a stator core 37, and is opposed to the outer rotor 30 at a predetermined interval and fixed to the shaft 38. The following explanation is
Although mainly described with reference to FIG. 1, one end (the left end in FIG. 1) of the shaft 38 is fixed to the motor mounting portion 41 by a fixing screw 42. Reference numeral 40 denotes a left end cover provided on the fixed side, the inner peripheral end of which is fixed to the left end on the motor mounting portion 41 side, and the outer peripheral end of which is the main casing 3.
9 is confronted with a small gap from the left end. 43 is an auxiliary casing fixed to the right end of the main casing 39 by welding or the like, 44 is a bearing disposed on the load side such as a cross roller bearing, and 44a to 44c are bearing retainers, respectively, as shown in the figure. The outer rotor 30 held by the main casing 39 is disposed so as to press around the bearing 44 with the bearing pressers 44a to 44c.
The shaft 44 can be supported on the load mounting portion side of the shaft 38 via the bearing 3. Reference numeral 45 denotes a sensor section such as a magnetic resolver. The rotor of the sensor section 45 is provided on the auxiliary casing 43 side connected to the main casing 39, while the stator of the sensor section 45 is a bearing connected to the shaft 38. It is provided on the presser 44b side. Reference numeral 46 denotes a shield plate that is disposed so as to cover the right end of the sensor unit 45, and is fixed to the right end of the bearing retainer 44b. A right end cover 47 is rotatably arranged, and its outer peripheral portion is fitted and fixed to the right end of the auxiliary casing 43. As described above, the direct drive type outer rotor type rotating electric machine according to one embodiment of the present invention is configured, and is attached to a load (not shown) at a load attachment surface indicated by reference numeral 43a. In the embodiment of FIG. 1, the auxiliary casing 43 is connected to the main casing 39 by means of welding or the like to extend to the load mounting portion side (rightward), and the bearing retainer 44b is connected to the shaft 38 by welding or the like. The bearing is fixed by means and extended to the load side in the axial direction. The bearing retainer 44b and the auxiliary casing 43, and the bearing retainers 44b and 44c are respectively provided with screws 4
Although a configuration example of connection by 8, 49 is shown, it is not limited to this fixing means. An outer rotor type rotary electric machine of a direct drive type according to the present invention is provided such that a fixed shaft, a stator provided with a winding provided on the outer periphery of the shaft, and a rotatable opposing rotor are disposed at a predetermined gap from the stator. In a direct drive type outer rotor type rotary electric machine including an outer rotor, a bearing for supporting the outer rotor on the shaft, and a sensor unit for detecting rotation, one end of the shaft is fixed to a motor mounting portion. The other end is provided on the load mounting portion side, and is provided on the outer rotor extending from the motor mounting portion to the load mounting portion side outside the other end portion and supported by the bearing, and on an outer peripheral portion of the outer rotor. A load mounting portion, and a rotation detecting sensor provided inside the load mounting portion; The stator, the fixed side of the bearing, and the stator of the sensor are sequentially provided on the shaft from the motor mounting portion toward the load mounting portion, and the outer rotor and the sensor rotor are mounted on the shaft in this order. The bearing is configured to be supported on the rotating side of the bearing disposed on the side of the shaft, and has a problem of the core run-out action which is a problem of the cantilever type rotating electric machine which has been a problem of the conventional example and which has been a fatal problem for this type of rotating electric machine. The point that it can be improved has a feature in its configuration.

【0007】[0007]

【発明の効果】本発明のダイレクト・ドライブ式のアウ
タロータ形回転電機は,上記のように固定されるシャフ
トと,このシャフトの外周に設けられた巻線を備えたス
テータと,このステータと所定間隙を隔てて回転可能に
対向配置されるアウタロータと,このアウタロータを前
記シャフトにおいて支承する軸受と,回転検出用のセン
サ部とを備えたダイレクト・ドライブ式のアウタロータ
形回転電機において,前記シャフトの一方端をモータ取
付部に固定すると共に,他方端は負荷取付部側とし,こ
の他方端部の外方で前記モータ取付部から前記負荷取付
部側へ延びて前記軸受で支承せられた前記アウタロータ
と,前記アウタロータの外周部分に設けられた負荷取付
部と,この負荷取付部内方に設けられた前記回転検出用
のセンサ部とを備え,この負荷取付部の内方には,前記
シャフト上にモータ取付部から負荷取付部側に向かって
ステータ,軸受の固定側,センサの固定子が順次設けら
れ,前記アウタロータ及び前記センサの回転子は,この
順序で前記シャフトの負荷取付部側に配置される前記軸
受の回転側で支承されるように構成したから,次のよう
な優れた効果を有する。軸受支持部とモータ取付部が
同部分相当となり,この軸受支持部44sから負荷取付
面43a迄の距離LAは,従来のもののモータ取付面か
ら負荷取付面までの距離LBよりも著しく短縮される。
従って,負荷取付部におけるオーバーハングが大幅に
減少され,芯振れが小さくなり,高い回転精度とするこ
とができる。また,本発明の実施例に示すように,軸
受支持部から右方の部分を回転機本体に対して補助ケー
シング及び軸受押さえを介在させて溶接等で一体構造と
するように延長させる構成とすれば,回転電機の容量に
応じて任意に一体構造の組み立てが行えて便利であり,
また,回転電機の軸方向が長くなっても,軸受支持部か
ら負荷取付面までの距離は一定であり,回転電機の容量
の増大により芯振れの程度が変化しない点でも優れてい
る。
According to the present invention, there is provided a direct drive type outer rotor type rotating electric machine comprising: a shaft fixed as described above; a stator provided with a winding provided on the outer periphery of the shaft; One end of the shaft, in a direct drive type outer rotor type rotary electric machine including an outer rotor rotatably opposed to the rotor, a bearing for supporting the outer rotor on the shaft, and a sensor unit for detecting rotation. And the outer rotor extending from the motor mounting portion to the load mounting portion side and supported by the bearing outside the other end, and A load mounting portion provided on an outer peripheral portion of the outer rotor; and a rotation detecting sensor portion provided inside the load mounting portion. Inside the load mounting portion, a stator, a bearing fixed side, and a sensor stator are sequentially provided on the shaft from the motor mounting portion to the load mounting portion side, and the outer rotor and the sensor rotor are provided. Are configured to be supported in this order on the rotating side of the bearing disposed on the load mounting portion side of the shaft, and therefore have the following excellent effects. The bearing support portion and the motor mounting portion correspond to the same portion, and the distance LA from the bearing support portion 44s to the load mounting surface 43a is significantly shorter than the conventional distance LB from the motor mounting surface to the load mounting surface.
Therefore, the overhang at the load mounting portion is greatly reduced, the center runout is reduced, and high rotational accuracy can be achieved. Also, as shown in the embodiment of the present invention, the right part from the bearing support is extended to the rotating machine body by welding or the like with an auxiliary casing and a bearing retainer interposed therebetween so as to form an integral structure. If it is possible to assemble the integrated structure arbitrarily according to the capacity of the rotating electrical machine, it is convenient.
Further, even when the rotating electric machine is elongated in the axial direction, the distance from the bearing support portion to the load mounting surface is constant, and the degree of center runout does not change due to an increase in the capacity of the rotating electric machine.

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

【図1】本発明の一実施例を示す半部縦断正面図であ
る。
FIG. 1 is a half vertical sectional front view showing an embodiment of the present invention.

【図2】図1のY−Y’線における断面図である。FIG. 2 is a sectional view taken along line Y-Y 'of FIG.

【図3】従来例の構成を示す縦断正面図である。FIG. 3 is a vertical sectional front view showing a configuration of a conventional example.

【符号の説明】[Explanation of symbols]

30:アウタロ−タ 34:ステ−タ 38:シャフト 38a:ハウジングリング 39:主ケ−シング 40:左方エンドカバ− 41:モ−タ取付部 43a:負荷取付面 44:軸受 45:センサ部 30: Outer rotor 34: Stator 38: Shaft 38a: Housing ring 39: Main casing 40: Left end cover 41: Motor mounting part 43a: Load mounting surface 44: Bearing 45: Sensor part

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭47−720(JP,A) 実開 平2−22037(JP,U) 実開 平2−22040(JP,U) 実開 平2−22083(JP,U) 実開 平2−125569(JP,U) 実開 昭62−68455(JP,U) 実開 昭62−121089(JP,U) 実開 昭61−171465(JP,U) (58)調査した分野(Int.Cl.7,DB名) H02K 37/00 - 37/24 H02K 5/16 B25J 17/00 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-47-720 (JP, A) JP-A-2-22037 (JP, U) JP-A-2-22040 (JP, U) JP-A 2-22037 22083 (JP, U) JP-A 2-125569 (JP, U) JP-A 62-68455 (JP, U) JP-A 62-121089 (JP, U) JP-A 61-171465 (JP, U) (58) Field surveyed (Int. Cl. 7 , DB name) H02K 37/00-37/24 H02K 5/16 B25J 17/00

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 固定されるシャフトと, このシャフトの外周に設けられた巻線を備えたステータ
と, このステータと所定間隙を隔てて回転可能に対向配置さ
れるアウタロータと,このアウタロータを前記シャフト
において支承する軸受と, 回転検出用のセンサ部とを備えたダイレクト・ドライブ
式のアウタロータ形回転電機において, 前記シャフトの一方端をモータ取付部に固定すると共
に,他方端は負荷取付部側とし,この他方端部の外方で前記モータ取付部から前記負荷取
付部側へ延びて前記軸受で支承せられた前記アウタロー
タと, 前記アウタロータの外周部分に設けられた負荷取付部
と, この負荷取付部内方に設けられた前記回転検出用のセン
サ部とを備え, この負荷取付部の内方には, 前記シャフト上にモータ取
付部から負荷取付部側に向かってステータ,軸受の固定
側,センサの固定子が順次設けられ, 前記アウタロータ及び前記センサの回転子は,この順序
で前記シャフトの負荷取付部側に配置される前記軸受の
回転側で支承されるようにしたことを特徴とするダイレ
クト・ドライブ式のアウタロータ形回転電機。
1. A fixed shaft, a stator having windings provided on the outer periphery of the shaft, an outer rotor rotatably opposed to the stator with a predetermined gap therebetween, and the outer rotor In a direct drive type outer rotor type rotary electric machine having a bearing supported in the above and a rotation detecting sensor part, one end of the shaft is fixed to a motor mounting part, and the other end is a load mounting part side, Outside the other end, the load is removed from the motor mounting portion.
The outer low extending toward the attachment portion and supported by the bearing
And a load mounting portion provided on an outer peripheral portion of the outer rotor.
And a rotation detecting sensor provided inside the load mounting portion.
A stator, a fixed side of a bearing, and a stator of a sensor are sequentially provided on the shaft from the motor mounting portion to the load mounting portion side inside the load mounting portion. A direct drive type outer rotor type rotating electric machine, wherein the rotor of the sensor is supported in this order on the rotating side of the bearing arranged on the load mounting portion side of the shaft.
JP4135677A 1992-04-30 1992-04-30 Outer rotor type rotary electric machine of direct drive type Expired - Fee Related JP3052573B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4135677A JP3052573B2 (en) 1992-04-30 1992-04-30 Outer rotor type rotary electric machine of direct drive type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4135677A JP3052573B2 (en) 1992-04-30 1992-04-30 Outer rotor type rotary electric machine of direct drive type

Publications (2)

Publication Number Publication Date
JPH05308766A JPH05308766A (en) 1993-11-19
JP3052573B2 true JP3052573B2 (en) 2000-06-12

Family

ID=15157350

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4135677A Expired - Fee Related JP3052573B2 (en) 1992-04-30 1992-04-30 Outer rotor type rotary electric machine of direct drive type

Country Status (1)

Country Link
JP (1) JP3052573B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012100425A (en) * 2010-11-01 2012-05-24 Honda Motor Co Ltd Outer rotor electric motor

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1182765A1 (en) * 2000-02-25 2002-02-27 Mitsubishi Denki Kabushiki Kaisha Cylinder servomotor
WO2001063730A1 (en) * 2000-02-25 2001-08-30 Mitsubishi Denki Kabushiki Kaisha Cylinder servomotor
JP4572591B2 (en) * 2004-06-11 2010-11-04 日本精工株式会社 Rotation drive
JP2007097291A (en) * 2005-09-28 2007-04-12 Ckd Corp Direct drive motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012100425A (en) * 2010-11-01 2012-05-24 Honda Motor Co Ltd Outer rotor electric motor
US8575799B2 (en) 2010-11-01 2013-11-05 Honda Motor Co., Ltd. Outer rotor electric motor

Also Published As

Publication number Publication date
JPH05308766A (en) 1993-11-19

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