JPS6145704Y2 - - Google Patents
Info
- Publication number
- JPS6145704Y2 JPS6145704Y2 JP3628279U JP3628279U JPS6145704Y2 JP S6145704 Y2 JPS6145704 Y2 JP S6145704Y2 JP 3628279 U JP3628279 U JP 3628279U JP 3628279 U JP3628279 U JP 3628279U JP S6145704 Y2 JPS6145704 Y2 JP S6145704Y2
- Authority
- JP
- Japan
- Prior art keywords
- outer frame
- fins
- stator core
- fixed
- cooling
- 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
Links
- 238000001816 cooling Methods 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Motor Or Generator Frames (AREA)
- Motor Or Generator Cooling System (AREA)
Description
【考案の詳細な説明】
この考案は回転電機、特にその取付足の改良に
関するものである。[Detailed Description of the Invention] This invention relates to a rotating electric machine, particularly to an improvement of its mounting foot.
従来、この種の回転電機、例えば全閉外扇形電
動機として第１図、第２図に示すものがあつた。
図において、１は波形の中空状のフイン２を周方
向に複数個形成して設けた薄鋼板からなる外枠、
３は外枠１の内周に固着された固定子鉄心、４は
固定子コイル、５は回転子、６は回転軸、７は外
枠１の両端に設けられたフランジ、８はフランジ
７に取りつけられたブラケツトで、軸受９を介し
て回転軸６を支承している。１０は回転軸６に固
着された内部フアン、１１は同じく回転軸６に固
着された外部フアン１２は外部フアン１１を覆う
外扇カバー、１３は取付足で、複数のフイン２の
山部に溶接により固定されている。 2. Description of the Related Art Conventionally, there have been rotating electrical machines of this type, such as totally enclosed external sector electric motors, as shown in FIGS. 1 and 2.
In the figure, 1 is an outer frame made of a thin steel plate provided with a plurality of corrugated hollow fins 2 formed in the circumferential direction;
3 is a stator core fixed to the inner periphery of the outer frame 1, 4 is a stator coil, 5 is a rotor, 6 is a rotating shaft, 7 is a flange provided at both ends of the outer frame 1, 8 is a flange 7 The attached bracket supports the rotating shaft 6 via a bearing 9. 10 is an internal fan fixed to the rotating shaft 6, 11 is an external fan 12 which is also fixed to the rotating shaft 6, is an external fan cover that covers the external fan 11, and 13 is a mounting foot, which is welded to the peaks of the plurality of fins 2. Fixed by
このような構成において、電動機が回転される
と、内部フアン１０によつて内部空気はフイン２
の内部通風路Ａ、回転子５の貫通穴を通つて点線
矢印の如く循環される。一方外部フアン１１によ
つて外扇カバー１２の側面から取り入れられた外
気は、フイン２の外部通風路Ｂを通つて実線矢印
の如く通過し、フイン２にて電動機内部の熱と熱
交換して電動機を冷却する。 In such a configuration, when the electric motor is rotated, the internal air is forced into the fan 2 by the internal fan 10.
The air is circulated through the internal ventilation passage A of the rotor 5 and the through hole of the rotor 5 as shown by the dotted arrow. On the other hand, the outside air taken in from the side of the outside fan cover 12 by the outside fan 11 passes through the outside ventilation path B of the fin 2 as shown by the solid line arrow, and exchanges heat with the heat inside the motor at the fin 2. Cool the electric motor.
従来のフイン付回転電機においては、上述のよ
うに取付足１３はその取付の簡便さから冷却フイ
ン２の山部の溶接により固定されている。したが
つて冷却フイン２が中空であり、しかも薄鋼板で
構成されているところから機械的強度に劣り、歪
および振動の原因となつていた。 In the conventional rotating electrical machine with fins, as described above, the mounting leg 13 is fixed by welding the peak of the cooling fin 2 for ease of mounting. Therefore, since the cooling fins 2 are hollow and are made of thin steel plates, they have poor mechanical strength, causing distortion and vibration.
この考案はこのような従来の欠点を除去するた
めに、外枠のフイン谷部に軸方向のリブを設け、
このリブに別体の取付足を取りつけることにより
剛性を向上させた回転電機を得ることを目的とし
ている。 In order to eliminate these conventional drawbacks, this invention provides axial ribs in the fin valleys of the outer frame.
The purpose of this invention is to obtain a rotating electrical machine with improved rigidity by attaching a separate mounting foot to this rib.
以下この考案の一実施例を第３図ないし第５図
について説明する。図において、第１図および第
２図と同一符号は相当部分を示すので、その説明
は省略する。 An embodiment of this invention will be described below with reference to FIGS. 3 to 5. In the figure, the same reference numerals as those in FIGS. 1 and 2 indicate corresponding parts, so the explanation thereof will be omitted.
図において、１４は外枠１のフイン２を１個ス
キツプ（フインを形成しないでとばすこと）させ
て、その広い幅のフイン谷部に突出して軸方向に
延びて溶接されたリブで、中心線を境にしてその
左右につきそれぞれ２個設けられている。１５は
第５図に詳細を示す別個に作られたＬ型の据付足
で、Ｌ型のそれぞれの端部が上記リブ１４に溶接
されて固着されている。なお取付足１５にはリブ
１４間のフイン２が邪魔にならない程度に三角形
の補強枠１５ａが固着されている。 In the figure, 14 is a rib that is welded by skipping one fin 2 of the outer frame 1 (skipping it without forming a fin) and extending in the axial direction and protruding from the wide fin valley. There are two on each side of the border. Reference numeral 15 denotes a separately made L-shaped installation foot, the details of which are shown in FIG. 5, and each end of the L-shape is welded and fixed to the rib 14. A triangular reinforcing frame 15a is fixed to the mounting foot 15 to such an extent that the fins 2 between the ribs 14 do not get in the way.
このように取付足１５が比較的強度の大きいフ
イン谷部にリブ１４を介して取りつけられるか
ら、それに取りつけられた取付足１５も機械的強
度の大きいものとなり、また歪も生じず、剛性に
優れたものとなる。 Since the mounting foot 15 is thus attached to the fin valley, which has relatively high strength, via the rib 14, the mounting foot 15 attached thereto also has high mechanical strength, does not cause distortion, and has excellent rigidity. It becomes something.
以上のようにこの考案によれば、固定子鉄心の
外周に、全周にわたつつて波状の冷却フインを有
する外枠を装着し、この外枠の下半部部の複数個
所にリブを設け、このリブにのみ固着される略Ｌ
形状の取付足を固着したので、冷却効果もほとん
ど低下することなく、機械的強度も大きくまた歪
も少ない回転電機を得ることができる。 As described above, according to this invention, an outer frame having wavy cooling fins around the entire circumference is attached to the outer periphery of the stator core, and ribs are provided at multiple locations on the lower half of the outer frame. , approximately L fixed only to this rib
Since the shaped mounting legs are fixed, it is possible to obtain a rotating electrical machine with high mechanical strength and little distortion without substantially reducing the cooling effect.
第１図および第２図は従来の密閉外扇形電動機
の断面図および部分正面図、第３図および第４図
はこの考案の一実施例を示す部分側面図および部
分正面図、第５図はこの考案に使用される取付足
の斜視図である。
なお図中同一符号は同一又は相当部分を示す。
図において、１は外枠、２はフイン、１４はリ
ブ、１５は取付足である。
1 and 2 are a sectional view and a partial front view of a conventional hermetically sealed external sector electric motor, FIGS. 3 and 4 are a partial side view and a partial front view showing an embodiment of this invention, and FIG. It is a perspective view of the mounting foot used for this invention. Note that the same reference numerals in the figures indicate the same or equivalent parts.
In the figure, 1 is an outer frame, 2 is a fin, 14 is a rib, and 15 is a mounting foot.
Claims (1)
された冷却フインを有する外枠を装着した回転電
機において、上記外枠の下半部複数個所に、上記
冷却フインの間隔を他部より大きくした幅広部を
形成すると共に、この幅広部の上記冷却フイン谷
部に軸方向に延びたリブを上記フインの高さ方向
に突出して設け、このリブのみにそれぞれ一端が
固着され、上記固定子鉄心および冷却フインとは
無接触で取りつけられた補強枠を有する略Ｌ形状
の取付足を設けたことを特徴とする回転電機。 In a rotating electrical machine in which an outer frame having cooling fins formed by bending a thin plate into a wave shape is attached to the outer periphery of a stator core, the interval between the cooling fins is set larger at multiple locations in the lower half of the outer frame than in other parts. At the same time, ribs extending in the axial direction are provided in the cooling fin valley portions of the wide portions and protrude in the height direction of the fins, one end of each of which is fixed only to the ribs, and the stator core and a rotating electric machine, characterized in that a substantially L-shaped mounting foot having a reinforcing frame is mounted without contacting the cooling fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3628279U JPS6145704Y2 (en) | 1979-03-19 | 1979-03-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3628279U JPS6145704Y2 (en) | 1979-03-19 | 1979-03-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55137850U JPS55137850U (en) | 1980-10-01 |
| JPS6145704Y2 true JPS6145704Y2 (en) | 1986-12-23 |
Family
ID=28897148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3628279U Expired JPS6145704Y2 (en) | 1979-03-19 | 1979-03-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6145704Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0314934Y2 (en) * | 1985-09-12 | 1991-04-02 |
-
1979
- 1979-03-19 JP JP3628279U patent/JPS6145704Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55137850U (en) | 1980-10-01 |
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