JPH0257254U - - Google Patents
Info
- Publication number
- JPH0257254U JPH0257254U JP13673088U JP13673088U JPH0257254U JP H0257254 U JPH0257254 U JP H0257254U JP 13673088 U JP13673088 U JP 13673088U JP 13673088 U JP13673088 U JP 13673088U JP H0257254 U JPH0257254 U JP H0257254U
- Authority
- JP
- Japan
- Prior art keywords
- frame
- mass
- showing
- induction motor
- electromagnetic force
- 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)
Description
第１図は本考案の実施例に係るフレームを有す
る誘導電動機を示す横断面図、第２図は従来技術
に係る誘導電動機を示す横断面図、第３図はその
電磁騒音発生のメカニズムを示す説明図、第４図
はその固定子、回転子間に発生する電磁力を示す
波形図、第５図はその電磁力の周波数分布を示す
グラフ、第６図ａ〜第６図ｄは第５図の２，４，
８，１８次に対応する電磁力の空間分布波形を示
す説明図、第７図ａ〜第７図ｆはフレームの振動
モードを示す説明図、第８図ａ及び第８図ｃは水
平方向の共振の原因を説明するための説明図、第
８図ｂ及び第８図ｄは第８図ａ及び第８図ｃに夫
々対応する電磁力の空間分布を示す説明図である
。
図面中、６は端子箱、１４はフレーム、１４ａ
はバランサである。
Fig. 1 is a cross-sectional view showing an induction motor having a frame according to an embodiment of the present invention, Fig. 2 is a cross-sectional view showing an induction motor according to the prior art, and Fig. 3 shows the mechanism of electromagnetic noise generation. 4 is a waveform diagram showing the electromagnetic force generated between the stator and rotor, FIG. 5 is a graph showing the frequency distribution of the electromagnetic force, and FIGS. Figure 2, 4,
An explanatory diagram showing the spatial distribution waveform of the electromagnetic force corresponding to the 8th and 18th order. Figures 7a to 7f are explanatory diagrams showing the vibration mode of the frame. Figures 8a and 8c are diagrams showing the horizontal direction. FIGS. 8b and 8d, which are explanatory diagrams for explaining the causes of resonance, are explanatory diagrams showing the spatial distribution of electromagnetic force corresponding to FIGS. 8a and 8c, respectively. In the drawing, 6 is a terminal box, 14 is a frame, 14a
is a balancer.
Claims (1)
する誘導電動機のフレームにおいて、前記フレー
ムの質量を回転軸の軸線に対して左右対称となる
ように質量を付加して構成したことを特徴とする
誘導電動機のフレーム。 A frame for an induction motor driven by an equivalent sine wave PWM inverter, characterized in that the frame is configured by adding mass so that the mass of the frame is symmetrical with respect to the axis of a rotating shaft. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13673088U JPH0257254U (en) | 1988-10-21 | 1988-10-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13673088U JPH0257254U (en) | 1988-10-21 | 1988-10-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0257254U true JPH0257254U (en) | 1990-04-25 |
Family
ID=31397511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13673088U Pending JPH0257254U (en) | 1988-10-21 | 1988-10-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0257254U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017060378A (en) * | 2015-09-18 | 2017-03-23 | 東芝三菱電機産業システム株式会社 | Rotating 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 | Rotating electric machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54142509A (en) * | 1978-04-28 | 1979-11-06 | Toshiba Corp | Method of producing electrical rotary machine |
-
1988
- 1988-10-21 JP JP13673088U patent/JPH0257254U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54142509A (en) * | 1978-04-28 | 1979-11-06 | Toshiba Corp | Method of producing electrical rotary machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017060378A (en) * | 2015-09-18 | 2017-03-23 | 東芝三菱電機産業システム株式会社 | Rotating 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 | Rotating electric machine |
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