JPH07154940A - Rotating electric machine - Google Patents
Rotating electric machineInfo
- Publication number
- JPH07154940A JPH07154940A JP29625593A JP29625593A JPH07154940A JP H07154940 A JPH07154940 A JP H07154940A JP 29625593 A JP29625593 A JP 29625593A JP 29625593 A JP29625593 A JP 29625593A JP H07154940 A JPH07154940 A JP H07154940A
- Authority
- JP
- Japan
- Prior art keywords
- stator frame
- mass
- electric machine
- rotating electric
- mass body
- 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
- Motor Or Generator Frames (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電磁振動を低減する機
構を有する回転電機に係り、特に、発電機，モータ等に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary electric machine having a mechanism for reducing electromagnetic vibration, and more particularly to a generator, a motor and the like.
【０００２】[0002]
【従来の技術】回転電機の振動，騒音の原因の大きな一
つとして、電源周波数の二倍成分，スロットリップル，
ロータリップル等に起因する高調波成分の電磁加振力に
よって発生する固定子並び固定子枠の共振時の円環振動
が挙げられる。これらの解決方法として、特開昭55−13
619 号公報に記載されているように補助的な中空円板に
よって固定子枠に剛性を付加するものや、特開昭58−11
9743号公報に記載されているように固定子と固定枠間を
接続する支持棒に付加質量を与えるものがある。2. Description of the Related Art As one of the main causes of vibration and noise of a rotating electric machine, a double component of power supply frequency, slot ripple,
An example of the vibration is an annular vibration at the time of resonance of the stator and the stator frame, which is generated by the electromagnetic excitation force of the harmonic component caused by the rotor ripple and the like. As a solution to these problems, JP-A-55-13
As described in Japanese Patent No. 619, which adds rigidity to a stator frame by an auxiliary hollow disk, and Japanese Patent Laid-Open No. 58-11.
As disclosed in Japanese Patent No. 9743, there is one that gives an additional mass to a support rod that connects a stator and a fixed frame.
【０００３】従来技術では、剛性を付加する機構を設け
ることによって固定子の固有振動数を上げたり、付加質
量を与えることによって固有振動数を下げ、電磁加振力
の周波数成分と構造物の固有振動数が一致し、共振する
ことを避けている。In the prior art, a mechanism for adding rigidity is provided to increase the natural frequency of the stator, and an additional mass is applied to reduce the natural frequency to reduce the frequency component of the electromagnetic excitation force and the natural frequency of the structure. The frequencies match to avoid resonance.
【０００４】[0004]
【発明が解決しようとする課題】従来技術では、固定子
に剛性を付加することによって機構の固有振動数を上げ
たり、付加質量を与えることによって固有振動数を下
げ、電磁加振力と構造物との共振を避けるように設計さ
れている。ところが、一般に、回転電機はそれ自体単独
で用いられることは少なく、必ず何らかの装置内に組み
込まれて使用さている。このため、回転電機の取り付け
状況によってその固有振動数は変化する。また、回転電
機の回転数も接続された負荷状態によって変化するた
め、電磁加振力の周波数成分も変化する。これらの原因
から、出荷段階の無負荷試験によって発生しなかった周
波数成分の振動，騒音が、装置組込後の運転状況下で発
生することがある。ところが、従来技術では、前述した
回転電機の装置組込後に発生する振動，騒音について何
等配慮されていないのが現状である。In the prior art, the rigidity is added to the stator to increase the natural frequency of the mechanism, and the added mass is applied to decrease the natural frequency to reduce the electromagnetic excitation force and the structure. Designed to avoid resonance with. However, generally, the rotary electric machine is rarely used by itself, and is always used by being incorporated in some kind of device. For this reason, the natural frequency of the rotating electric machine changes depending on how it is mounted. Further, since the rotation speed of the rotating electric machine also changes depending on the connected load state, the frequency component of the electromagnetic excitation force also changes. Due to these causes, vibration and noise of frequency components, which were not generated by the no-load test at the shipping stage, may be generated under the operating condition after the device is installed. However, in the conventional technology, the current situation is that no consideration is given to the vibration and noise generated after the above-described rotary electric machine is incorporated into the device.
【０００５】本発明の目的は、装置組込後に発生する振
動，騒音を低減することができ、さらに冷却性能を向上
させることが出来る回転電機を提供することにある。An object of the present invention is to provide a rotating electric machine capable of reducing vibrations and noises generated after installing the apparatus and further improving cooling performance.
【０００６】[0006]
【課題を解決するための手段】上記目的は、脱着可能
で、任意の質量をもち、放熱性を考慮した流線形状の質
量体ならびに、それを任意の位置に設置することが出来
る固定子枠によって可能となる。Means for Solving the Problems The above object is a detachable, mass-shaped mass body having an arbitrary mass and considering heat dissipation, and a stator frame which can be installed at any position. Made possible by
【０００７】[0007]
【作用】固定子枠の円環モードの腹の位置に基準のフィ
ンよりも軽い付加質量体を取り付ければ、その円環モー
ドの固有振動数を上げることが、また基準のフィンより
も重い付加質量体つければ、その円環モードの固有振動
数を下げることが可能となる。[Function] If an additional mass, which is lighter than the reference fin, is attached to the antinode of the annular mode of the stator frame, the natural frequency of the annular mode can be increased. If you wear it, you can lower the natural frequency of the circular mode.
【０００８】また、負荷質量自体冷却フィンの性能を有
しているため、付加質量の設置によって、冷却風の流れ
を阻害し、大きく回転電機の冷却性能の低下を及ぼすこ
とがない。Further, since the load mass itself has the performance of the cooling fins, the installation of the additional mass does not impede the flow of the cooling air and does not significantly deteriorate the cooling performance of the rotating electric machine.
【０００９】さらに、固定子枠の外側に質量体を取り外
しするだけなので、エンドブラケット等を取り外し付加
質量や付加剛性を取り付けする必要がなく、回転電機を
装置に組み込んだ状態でも容易に固有振動数の変更が可
能となる。Further, since the mass body is simply removed on the outside of the stator frame, it is not necessary to remove the end bracket or the like to attach additional mass or additional rigidity, and the natural frequency can be easily set even when the rotating electric machine is incorporated in the device. Can be changed.
【００１０】[0010]
【実施例】図１は本発明による振動低減用の機構を有す
る誘導電動機の一実施例を示す斜視図である。誘導電動
機１は、固定子枠２，エンドブラット３，ロータシャフ
ト４，支持脚５，固定された冷却用フィン６，脱着可能
な質量体７とその取り付け用ねじ穴８で構成される。1 is a perspective view showing an embodiment of an induction motor having a mechanism for reducing vibration according to the present invention. The induction motor 1 includes a stator frame 2, end brats 3, rotor shafts 4, supporting legs 5, fixed cooling fins 6, a removable mass body 7 and screw holes 8 for mounting the mass body 7.
【００１１】脱着可能で、様々な質量の選択が可能な質
量体を、固定子枠上に設けられているねじ穴８を利用し
ねじ締結することによって、付加質量の効果によって回
転電機の固有振動数を変更し、電磁加振力との共振現象
に伴う振動，騒音を回避することが出来る。A mass body that is detachable and can be selected from various masses is screw-fastened by using the screw hole 8 provided on the stator frame, and the natural vibration of the rotating electric machine is produced by the effect of the added mass. By changing the number, it is possible to avoid vibration and noise due to the resonance phenomenon with the electromagnetic excitation force.
【００１２】図２に、脱着可能な質量体の取り付け位置
を示す。固定子枠が、図２に示すように(２)(４)(６)
(８)に節を持つ四節楕円モードで共振している場合、こ
のモードの固有振動数を変更するためには、(１)(３)
(５)(７)のすべて、もしくは、いずれかの位置に質量の
異なる質量体を取り付けるのが有効である。また逆に、
(１)(３)(５)(７)を節に持つ四節楕円モードで振動する
場合には、(２)(４)(６)(８)のすべて、もしくは、いず
れかの位置に質量の異なる質量体を取り付ける。FIG. 2 shows the mounting position of the removable mass body. As shown in Fig. 2, the stator frame is (2) (4) (6)
When resonating in the four-node elliptic mode having a node in (8), to change the natural frequency of this mode, (1) (3)
(5) It is effective to attach mass bodies having different masses to all or any of the positions in (7). On the contrary,
When vibrating in the four-bar ellipse mode having (1), (3), (5), and (7) as nodes, the mass at (2), (4), (6), (8), or at any position Attach different mass bodies.
【００１３】この位置に付加質量を配置することによっ
て、最小の付加質量の増減で、楕円モードの固有振動数
を変更することが出来る。By arranging the additional mass at this position, the natural frequency of the elliptic mode can be changed with the minimum increase or decrease of the additional mass.
【００１４】質量の異なる質量体の製作は、図３，図４
に示すように質量体の断面積を変更するか、形状は同一
で材質を変更するか、もしくは、質量体の形状を変更
し、かつ材質を変更する手段がある。The mass bodies having different masses are manufactured by referring to FIGS.
There is a means for changing the cross-sectional area of the mass body, changing the material with the same shape, or changing the shape of the mass body and changing the material as shown in FIG.
【００１５】次に、質量体の形状、並び質量体の固定子
枠への接続方法に関して説明する。Next, the shape of the mass bodies and the method of connecting the mass bodies to the stator frame will be described.
【００１６】図５は、脱着可能な付加質量体の実施例の
一つを示す斜視図である。質量体７は、流線形状をして
いる。質量体の両端は、ねじ止め出来るように加工され
ており、一つ以上のざぐり穴１１があけてある。固定子
枠には、ねじ目がきってあり、質量体と固定子枠はねじ
９によって締結される。質量体と固定子枠の間には熱的
な接続を良好にする充填剤１０が用いられている。FIG. 5 is a perspective view showing one embodiment of a removable additional mass body. The mass body 7 has a streamlined shape. Both ends of the mass body are machined so that they can be screwed, and one or more counterbored holes 11 are formed therein. The stator frame has screw threads, and the mass body and the stator frame are fastened with screws 9. A filler 10 is used between the mass body and the stator frame to improve the thermal connection.
【００１７】実施例では、質量体が流線形状に製作され
ているため、冷却風が、固定子枠全面に行きわたり固定
子および固定子枠の温度上昇を防ぐ。また、質量体をね
じ締結しているために、容易に取り付け取り外しが可能
である。また、熱的接続を良好にする充填剤の使用によ
って固定子枠から質量体への熱伝導性を向上させ、固定
子ならびに固定子枠の温度上昇を抑制することが出来
る。In the embodiment, since the mass body is manufactured in a streamlined shape, the cooling air is prevented from reaching the entire surface of the stator frame and increasing the temperature of the stator and the stator frame. Further, since the mass body is screw-fastened, it can be easily attached and detached. Further, the use of the filler that improves the thermal connection can improve the thermal conductivity from the stator frame to the mass body and suppress the temperature rise of the stator and the stator frame.
【００１８】図６は、図５の通風性をさらに改良した実
施例の図である。流線形状の質量体７の尾根部１２に、
一個以上のねじ止め用ざぐり穴１１を設ける。質量体の
両端は、ねじ締結のための段差はない形状になってい
る。FIG. 6 is a diagram of an embodiment in which the ventilation of FIG. 5 is further improved. In the ridge portion 12 of the streamlined mass body 7,
One or more counterbore holes 11 for screwing are provided. Both ends of the mass body are shaped so that there is no step for screw fastening.
【００１９】フィン尾根部にざぐり穴をもうけることに
よって質量体の先端部で、流れの乱れが発生することな
く、冷却風が回転電機の端まで行きわたるようになる。
このため固定子枠の冷却性能がより向上する。By providing a counterbore in the fin ridge, the cooling air can reach the end of the rotating electric machine at the tip of the mass body without causing flow turbulence.
Therefore, the cooling performance of the stator frame is further improved.
【００２０】次にねじどめ以外の質量体と固定子枠との
締結方法の例を示す。Next, an example of a method of fastening the mass body other than the screwing and the stator frame will be described.
【００２１】図５，図６で示したものと同様な質量体７
に、図７に示すように突起部１３を設ける。突起部に
は、長手方向にテーパ角が付けてある。図７，図８に示
すように、固定子枠には、突起１３が噛み合うような溝
１４があり、突起１３が溝に挿入するための開口部１５
が設けてある。開口部と質量体突起の間隔は同じであ
る。質量体の突起部を固定子枠の開口部に合わせ挿入、
質量体を固定子枠の長手方向にスライドすることによっ
て、丁度キーとキー溝の関係のように質量体と固定子枠
は締結される。逆に、図９に示すように、固定子枠２に
突起１７を、質量体に溝１６を設け、それを噛み合わせ
ることによって締結させることも可能である。Mass body 7 similar to that shown in FIGS.
At this point, the protrusion 13 is provided as shown in FIG. The projection has a taper angle in the longitudinal direction. As shown in FIGS. 7 and 8, the stator frame has a groove 14 with which the projection 13 meshes, and an opening 15 for the projection 13 to be inserted into the groove.
Is provided. The distance between the opening and the mass projection is the same. Insert the protrusion of the mass body into the opening of the stator frame,
By sliding the mass body in the longitudinal direction of the stator frame, the mass body and the stator frame are fastened just like the relationship between the key and the key groove. On the contrary, as shown in FIG. 9, it is also possible to fasten the stator frame 2 by providing the projection 17 and the mass body with the groove 16 and engaging them with each other.
【００２２】実施例では、質量体をねじで固定子枠に締
結する必要がないので、固定子枠にねじ目を切る必要が
ない。固定子枠の溝，突起，質量体の突起、溝は、鋳造
時の鋳型をあらかじめ溝や突起が出来るように加工して
おけば良い。In the embodiment, since it is not necessary to fasten the mass body to the stator frame with screws, it is not necessary to cut a thread on the stator frame. The grooves and protrusions of the stator frame, the protrusions of the mass body, and the grooves may be processed in advance in the casting mold so that the grooves and protrusions can be formed.
【００２３】図５から図９の実施例では、付加質量の増
減を行うために異なる形状，材質の質量体を新たに製作
する必要があるが、図１０，図１１に、そのような製作
を避けることが出来る一つの実施例を示す。質量体７
は、高さ方向に数等分されており、その分割要素１８に
ざぐり穴があけられている。それらの要素は、付加質量
の増減に伴い積み上げ数がかえられ、ねじを利用して固
定子枠に締結される。In the embodiment shown in FIGS. 5 to 9, it is necessary to newly produce a mass body having a different shape and material in order to increase or decrease the added mass. One example that can be avoided is shown. Mass body 7
Are divided into several equal parts in the height direction, and the dividing element 18 is provided with a countersink. The number of these elements is piled up as the additional mass increases or decreases, and the elements are fastened to the stator frame using screws.
【００２４】この実施例では、数多くの質量体の製作が
不要となる。また、付加質量の微調整も可能となる。In this embodiment, it is not necessary to manufacture many mass bodies. In addition, fine adjustment of the added mass is possible.
【００２５】図１２に、上記以外の質量体の取付方法を
示す。質量体７は、固定子枠上の冷却用フィン６上に設
置されている。フィンの先端は質量体固定用にＴ型の受
けになっており、ねじ固定用の貫通孔１９が、質量体，
フィンに設けてある。FIG. 12 shows a mounting method of the mass body other than the above. The mass body 7 is installed on the cooling fins 6 on the stator frame. The tip of the fin is a T-shaped receiver for fixing the mass body, and the through hole 19 for fixing the screw is
It is provided on the fin.
【００２６】この実施例では、上述の実施例同様、固定
子，固定子枠の固有振動数の変更が質量体の配置によっ
て可能である。また、冷却用フィン上に付加質量体を設
置するため冷却性能を低下させることもない。In this embodiment, as in the above-mentioned embodiments, the natural frequencies of the stator and the stator frame can be changed by the arrangement of the mass bodies. Further, since the additional mass body is installed on the cooling fin, the cooling performance is not deteriorated.
【００２７】[0027]
【発明の効果】本発明によれば、装置組み込み時の回転
電機の固有振動数と、電磁加振力の周波数成分が一致
し、円環モードで共振した場合、冷却性能を考慮した質
量体の付替えによって回転電機の固有振動数を変更し、
回転電機の振動，騒音を低減出来る。According to the present invention, when the natural frequency of the rotating electric machine when the device is installed and the frequency component of the electromagnetic excitation force match and the resonance occurs in the annular mode, the mass of the mass body considering the cooling performance is taken into consideration. Change the natural frequency of the rotating electric machine by changing the
Vibration and noise of rotating electrical machines can be reduced.
【００２８】また、振動のエネルギは、固定子枠と取り
付け可能なフィンの間に生じる滑りによる摩擦によって
消費，振動そのものが抑制され、したがって騒音の低減
にもつながる。Further, the vibration energy is consumed and the vibration itself is suppressed by the friction due to the slippage generated between the stator frame and the attachable fins, and therefore the noise is reduced.
【図１】本発明の質量体を誘導電動機に取り付けた時の
斜視図。FIG. 1 is a perspective view of a mass body according to the present invention attached to an induction motor.
【図２】質量体の回転電機への取り付け位置を示す説明
図。FIG. 2 is an explanatory view showing a mounting position of a mass body on a rotating electric machine.
【図３】質量体（小）の断面図。FIG. 3 is a cross-sectional view of a mass body (small).
【図４】質量体（大）の断面図。FIG. 4 is a cross-sectional view of a mass body (large).
【図５】質量体の形状の一つを示す斜視図。FIG. 5 is a perspective view showing one of the shapes of the mass body.
【図６】固定用のざぐり穴を尾根部に設けた質量体の例
を示した斜視図。FIG. 6 is a perspective view showing an example of a mass body in which a counterbore for fixing is provided in a ridge portion.
【図７】埋込式の質量体，固定子枠の断面図。FIG. 7 is a sectional view of an embedded mass body and a stator frame.
【図８】埋込式の質量体，固定子枠の斜視図。FIG. 8 is a perspective view of an embedded mass body and a stator frame.
【図９】固定子枠に質量体固定用の突起部を設けた断面
図。FIG. 9 is a cross-sectional view in which a protrusion for fixing a mass body is provided on a stator frame.
【図１０】分割された質量体によって付加質量を与える
方法を示した上面図。FIG. 10 is a top view showing a method of giving an additional mass by using divided mass bodies.
【図１１】分割された質量体によって付加質量を与える
方法を示した側面図。FIG. 11 is a side view showing a method of giving an additional mass by using divided mass bodies.
【図１２】放熱用のフィン上に付加質量を取り付けるよ
うにした説明図。FIG. 12 is an explanatory diagram in which an additional mass is attached on a fin for heat dissipation.
１…誘導電動機、２…固定子枠、３…エンドブラケッ
ト、４…ロータシャフト、５…支持脚、６…固定フィ
ン、７…質量体、８…ねじ穴。DESCRIPTION OF SYMBOLS 1 ... Induction motor, 2 ... Stator frame, 3 ... End bracket, 4 ... Rotor shaft, 5 ... Support leg, 6 ... Fixed fin, 7 ... Mass body, 8 ... Screw hole.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 田中 基八郎 茨城県土浦市神立町502番地 株式会社日 立製作所機械研究所内 (72)発明者 與那嶺 操 千葉県習志野市東習志野七丁目１番１号 株式会社日立製作所習志野工場内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Motohachiro Tanaka, 502 Jinritsu-cho, Tsuchiura-shi, Ibaraki Machinery Research Institute, Hiritsu Seisakusho Co., Ltd. Narashino Factory, Hitachi, Ltd.
Claims (1)
変更するための質量体を回転軸方向に着脱可能に設けた
ことを特徴とする回転電機。1. A rotating electric machine comprising a stator frame of the rotating electric machine, wherein a mass body for changing its natural frequency is detachably provided in the rotating shaft direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29625593A JPH07154940A (en) | 1993-11-26 | 1993-11-26 | Rotating electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29625593A JPH07154940A (en) | 1993-11-26 | 1993-11-26 | Rotating electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07154940A true JPH07154940A (en) | 1995-06-16 |
Family
ID=17831208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29625593A Pending JPH07154940A (en) | 1993-11-26 | 1993-11-26 | Rotating electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07154940A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005034311A1 (en) | 2003-09-29 | 2005-04-14 | Siemens Aktiengesellschaft | Method and device for altering the vibration characteristics of a motor system |
| JP2011015478A (en) * | 2009-06-30 | 2011-01-20 | Hitachi Industrial Equipment Systems Co Ltd | Rotating electric machine |
| WO2014094082A1 (en) * | 2012-12-21 | 2014-06-26 | Weg Equipamentos Elétricos S.A. - Motores | Heat exchange system for casings of rotary electric machines |
| JP2015078733A (en) * | 2013-10-16 | 2015-04-23 | Ntn株式会社 | Electrically-driven linear motion actuator and electrically-driven brake system |
| CN105375672A (en) * | 2014-08-29 | 2016-03-02 | 东芝三菱电机产业系统株式会社 | Vertical rotation motor and vibration preventing method |
| JP2016160949A (en) * | 2015-02-26 | 2016-09-05 | 東芝三菱電機産業システム株式会社 | Rotary machine and vibration control method thereof |
| JP2017060379A (en) * | 2015-09-18 | 2017-03-23 | 東芝三菱電機産業システム株式会社 | Rotary electric machine |
| JP2017153335A (en) * | 2016-02-26 | 2017-08-31 | 東芝三菱電機産業システム株式会社 | Rotary electric machine |
| JP2017153334A (en) * | 2016-02-26 | 2017-08-31 | 東芝三菱電機産業システム株式会社 | Rotary electric machine |
| WO2019095559A1 (en) * | 2017-11-18 | 2019-05-23 | 中山大洋电机股份有限公司 | Fan |
| CN110429753A (en) * | 2019-08-14 | 2019-11-08 | 扬州洁晨机电科技有限公司 | A kind of fugitive thermoelectric perpetual motion machine of novel noise reduction |
| CN110635607A (en) * | 2018-06-22 | 2019-12-31 | 群光电能科技股份有限公司 | Integrated motor and integrated heat dissipation system |
| WO2020235404A1 (en) * | 2019-05-21 | 2020-11-26 | 日本電産株式会社 | Motor, neutralizer, electric power steering device, and method for manufacturing neutralizer |
| JP2020204379A (en) * | 2019-06-18 | 2020-12-24 | 株式会社東芝 | Vibration suppression device of structure, and superconducting magnet device |
| JP2021036769A (en) * | 2020-12-07 | 2021-03-04 | ミネベアミツミ株式会社 | Rotary device |
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1993
- 1993-11-26 JP JP29625593A patent/JPH07154940A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005034311A1 (en) | 2003-09-29 | 2005-04-14 | Siemens Aktiengesellschaft | Method and device for altering the vibration characteristics of a motor system |
| EP1678808B1 (en) * | 2003-09-29 | 2013-04-24 | Siemens Aktiengesellschaft | Method for altering the vibration characteristics of a motor system |
| JP2011015478A (en) * | 2009-06-30 | 2011-01-20 | Hitachi Industrial Equipment Systems Co Ltd | Rotating electric machine |
| EP2937974A1 (en) * | 2012-12-21 | 2015-10-28 | Weg Equipamentos Elétricos S.A. - Motores | Heat exchange system for casings of rotary electric machines |
| CN104885339A (en) * | 2012-12-21 | 2015-09-02 | 万高电机设备公司 | Heat exchange system for casings of rotary electric machines |
| US9843236B2 (en) | 2012-12-21 | 2017-12-12 | WEG Equipamentos Eletricos S.A.-Motores | Heat exchange system for casings of rotary electric machines |
| EP2937974A4 (en) * | 2012-12-21 | 2016-08-10 | Weg Equipamentos Elétricos S A Motores | Heat exchange system for casings of rotary electric machines |
| WO2014094082A1 (en) * | 2012-12-21 | 2014-06-26 | Weg Equipamentos Elétricos S.A. - Motores | Heat exchange system for casings of rotary electric machines |
| JP2015078733A (en) * | 2013-10-16 | 2015-04-23 | Ntn株式会社 | Electrically-driven linear motion actuator and electrically-driven brake system |
| CN105375672A (en) * | 2014-08-29 | 2016-03-02 | 东芝三菱电机产业系统株式会社 | Vertical rotation motor and vibration preventing method |
| CN105375672B (en) * | 2014-08-29 | 2018-03-30 | 东芝三菱电机产业系统株式会社 | Vertical rotating motor and vibration prevention method |
| JP2016160949A (en) * | 2015-02-26 | 2016-09-05 | 東芝三菱電機産業システム株式会社 | Rotary machine and vibration control method thereof |
| JP2017060379A (en) * | 2015-09-18 | 2017-03-23 | 東芝三菱電機産業システム株式会社 | Rotary electric machine |
| JP2017153334A (en) * | 2016-02-26 | 2017-08-31 | 東芝三菱電機産業システム株式会社 | Rotary electric machine |
| JP2017153335A (en) * | 2016-02-26 | 2017-08-31 | 東芝三菱電機産業システム株式会社 | Rotary electric machine |
| US11472267B2 (en) | 2016-06-17 | 2022-10-18 | Minebea Mitsumi Inc. | Rotary apparatus |
| US11820204B2 (en) | 2016-06-17 | 2023-11-21 | Minebea Mitsumi Inc. | Rotary apparatus |
| WO2019095559A1 (en) * | 2017-11-18 | 2019-05-23 | 中山大洋电机股份有限公司 | Fan |
| CN110635607A (en) * | 2018-06-22 | 2019-12-31 | 群光电能科技股份有限公司 | Integrated motor and integrated heat dissipation system |
| US11081937B2 (en) | 2018-06-22 | 2021-08-03 | Chicony Power Technology Co., Ltd. | Integrated motor drive and integrated heat dissipation system |
| WO2020235404A1 (en) * | 2019-05-21 | 2020-11-26 | 日本電産株式会社 | Motor, neutralizer, electric power steering device, and method for manufacturing neutralizer |
| JP2020204379A (en) * | 2019-06-18 | 2020-12-24 | 株式会社東芝 | Vibration suppression device of structure, and superconducting magnet device |
| CN110429753A (en) * | 2019-08-14 | 2019-11-08 | 扬州洁晨机电科技有限公司 | A kind of fugitive thermoelectric perpetual motion machine of novel noise reduction |
| CN110429753B (en) * | 2019-08-14 | 2020-08-07 | 扬州洁晨机电科技有限公司 | Noise-reduction motor easy to dissipate heat |
| JP2021036769A (en) * | 2020-12-07 | 2021-03-04 | ミネベアミツミ株式会社 | Rotary device |
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