JPH04109845A - Outer fan motor - Google Patents
Outer fan motorInfo
- Publication number
- JPH04109845A JPH04109845A JP22527490A JP22527490A JPH04109845A JP H04109845 A JPH04109845 A JP H04109845A JP 22527490 A JP22527490 A JP 22527490A JP 22527490 A JP22527490 A JP 22527490A JP H04109845 A JPH04109845 A JP H04109845A
- Authority
- JP
- Japan
- Prior art keywords
- fan
- fan cover
- electric motor
- guide tube
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 238000007664 blowing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
Landscapes
- Motor Or Generator Frames (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は外扇形電動機の騒音低下対策に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to measures for reducing noise in an external sector electric motor.
［従来の技術］
第２図は従来の外扇形電動機の上半部を断面で示した正
面図であり、図において、（１）は固定子、（２）は回
転子、（３）は反負荷側のブラケット、（４）は負荷側
のブラケット、（５）は回転子の軸受、（６）は回転軸
、（７）は反負荷側のブラケットの外側に設けたエンコ
ーダ等の検出器、（８）は同じく反負荷側のブラケット
（３）の外側に設けた冷却ファン、（９）はこの冷却フ
ァンを収納させたファンカバー（１０）は上記両ブラケ
ット間のフレームである。[Prior Art] Figure 2 is a front view showing a cross section of the upper half of a conventional external sector electric motor. In the figure, (1) is a stator, (2) is a rotor, and (3) is a Bracket on the load side, (4) is the bracket on the load side, (5) is the rotor bearing, (6) is the rotating shaft, (7) is a detector such as an encoder installed outside the bracket on the anti-load side, (8) is a cooling fan provided on the outside of the bracket (3) on the anti-load side, and (9) is a fan cover (10) in which this cooling fan is housed, which is a frame between the two brackets.
また、第３図は実開昭５７−６３４７６号公報に示され
た従来の外扇形電動機におけるファンカバ一部を示す部
分断面図であり、第４図はそのファンカバーをその排気
口側から見た端面図、第５図はその部分拡大図である。Further, Fig. 3 is a partial sectional view showing a part of the fan cover in the conventional external fan type electric motor disclosed in Japanese Utility Model Application Publication No. 57-63476, and Fig. 4 is a partial sectional view of the fan cover as seen from the exhaust port side. The end view and FIG. 5 are partially enlarged views thereof.
これらの図において、（２１）は反負荷側のブラケット
、 （２２）はこのブラケットに設けた取付は座、（２
３）はこの取付は座に固定されたファンカバー（２４）
はその開口部の内周面全周に突設された軸方向に長い突
起、（２５）は上記ファンカバー内に収納された冷却フ
ァンである。In these figures, (21) is the bracket on the anti-load side, (22) is the seat installed on this bracket, and (2) is the bracket on the anti-load side.
3) For this installation, the fan cover (24) is fixed to the seat.
(25) is a cooling fan housed in the fan cover.
［発明が解決しようとする課題］
第２図に示した従来の外扇形電動機は以上のように構成
され、反負荷側のブラケットの外側に検出器と冷却ファ
ンを覆うファンカバーを有しているので、このファンカ
バーの軸方向の寸法が長くなり、その分剤性が低くなり
送風時の振動による騒音が大きくなるという問題点があ
った。[Problems to be Solved by the Invention] The conventional external fan type electric motor shown in FIG. 2 is constructed as described above, and has a fan cover that covers the detector and the cooling fan on the outside of the bracket on the anti-load side. Therefore, the axial dimension of this fan cover becomes long, and there is a problem in that the dispensing property of the fan cover becomes long, and the noise caused by vibration during air blowing becomes large.
また第３図ないし第５図に示す外扇形電動機のファンカ
バーには、軸方向に長い多数の突起がその内周面に突設
されているが、各突起は円周方向に対しては分断された
形になっているので、腋部におけるファンカバーとして
の円周方向の剛性は小さく同様に騒音の原因になってい
る。In addition, the fan cover of the external sector electric motor shown in Figures 3 to 5 has a large number of axially long protrusions protruding from its inner peripheral surface, but each protrusion is separated in the circumferential direction. Because of this shape, the circumferential rigidity of the fan cover in the armpit is small, which also causes noise.
この発明は上記のような問題点を解消するためになされ
たもので、軸方向の寸法の長いファンカバーの振動によ
る騒音を低減させることを目的とする。This invention was made to solve the above-mentioned problems, and an object of the invention is to reduce noise caused by vibration of a fan cover having a long dimension in the axial direction.
［課題を解決するための手段］
この発明の外扇形電動機では、ファンカバーの外周壁に
電動機の軸方向とほぼ直角に交差する凹凸部を環状に形
成させると共に、各凹凸部の内周に冷却風のガイド筒を
一体に重合固着させている。[Means for Solving the Problems] In the external fan-shaped electric motor of the present invention, an annular concavo-convex portion that intersects the axial direction of the motor at a substantially right angle is formed on the outer peripheral wall of the fan cover, and cooling is provided on the inner periphery of each concavo-convex portion. The wind guide tube is polymerized and fixed together.
［作 用］
この発明の外扇形電動機では、ファンカバーの外周壁に
軸方向と交差するように設けた因凸部と、その内周に一
体に重合固着した冷却風のガイド筒との相乗作用により
、ファンカバーの剛性が増大される。[Function] In the external fan type electric motor of the present invention, a synergistic effect is achieved between the convex portion provided on the outer circumferential wall of the fan cover so as to intersect with the axial direction, and the cooling air guide tube integrally fixed to the inner circumference thereof. This increases the rigidity of the fan cover.
［実施例コ
以下この発明の一実施例について説明する。すなわち第
１図において第２図のものと同一個所には同一符号を付
してその重複説明は省略することにするが、この発明の
ものにおけるファンカバー（９）には、その外周壁に電
動機の軸方向とほぼ直角に交差する一連の凹凸部（９ａ
）が環状に付設されており、かつ各凹凸部（９ａ）の内
周にはファンカバー（９）内における冷却ファン（８）
による冷却風のガイド筒（１０）が一体に重合固着され
ている点に特徴を有するものである。[Example 1] An example of the present invention will be described below. That is, in FIG. 1, the same parts as those in FIG. A series of uneven portions (9a
) is attached in an annular shape, and a cooling fan (8) in the fan cover (9) is attached to the inner periphery of each uneven portion (9a).
The cooling air guide tube (10) is polymerized and fixed together.
したがってこの発明のものにおけるファンカバーはその
外局壁の凹凸部（９ａ）と、これの内周に一体に重合固
着されたガイド筒（１０）との相乗作用により、ファン
カバーの剛性が増大し、送風時の振動が低減されて騒音
が低下することになる。Therefore, in the fan cover according to the present invention, the rigidity of the fan cover is increased due to the synergistic effect of the uneven portion (9a) on the outer wall and the guide tube (10) that is integrally fixed to the inner circumference of the fan cover. , vibrations during air blowing are reduced and noise is reduced.
なお、上記実施例では全閉式の外扇形電動機について説
明したが、この形式に特定されず、フレームレスの場合
あるいは開放形の形式のものにも本ファンカバーを使用
してもよく、またエンコーダ等の検出器の代りにセンサ
ーや他のスイッチ等を取付けた形式のものであってもよ
い。In addition, although the above embodiment describes a fully enclosed type external fan type motor, this fan cover is not limited to this type and may also be used for a frameless type or an open type type. A sensor or other switch may be installed instead of the detector.
［発明の効果］
この発明の外扇形電動機は以上のように構成して、ファ
ンカバーの外周壁に環状の凹凸部を形成させることと、
これに冷却風のガイド筒を一体に重合固着するのみで、
従来例とほとんど変わらない部分構成で低騒音の外扇形
電動機が得られるという効果がある。[Effects of the Invention] The external fan type motor of the present invention is configured as described above, and has the following features:
Just by polymerizing and fixing the cooling air guide tube to this,
The effect is that a low-noise external fan-shaped motor can be obtained with a partial configuration that is almost the same as that of the conventional example.
第１図はこの発明の外扇形電動機の一実施例を示す上半
部を断面で示した正面図、第２図は従来の外扇形電動機
を示す同様の正面図、第３図は他の従来例におけるファ
ンカバ一部の部分断面図、第４図は第３図のファンカバ
ーをその排気口側から見た端面図、第５図はその部分拡
大図である。
なお、図中（３）は反負荷側のブラケット、（８）は冷
却ファン、（９）はファンカバー、（９ａ）は凹凸部、
（１０）はガイド筒である。
その他図中同−符号は同一部分を示すものとする。
第
図
反貢荷羨１１のブラケット
メン絆ファン
ファン方バー
凹凸部
ガイド筒FIG. 1 is a front view showing a section of the upper half of an embodiment of the external sector electric motor of the present invention, FIG. 2 is a similar front view showing a conventional external sector electric motor, and FIG. 3 is another conventional external sector electric motor. FIG. 4 is a partial sectional view of a part of the fan cover in the example, FIG. 4 is an end view of the fan cover of FIG. 3 viewed from the exhaust port side, and FIG. 5 is a partially enlarged view thereof. In the figure, (3) is the bracket on the anti-load side, (8) is the cooling fan, (9) is the fan cover, (9a) is the uneven part,
(10) is a guide tube. In other figures, the same reference numerals indicate the same parts. Figure 11 Bracket Men Bond Fan Fan Bar Uneven Guide Tube
Claims (1)
ァンカバーを設けた外扇形電動機において、上記ファン
カバーの外周壁に電動機の軸方向と交差する該部の補強
用凹凸部を環状に形成させると共に、これら凹凸部の内
周に上記冷却ファンからの冷却風のガイド筒を一体に重
合固着させたことを特徴とする外扇形電動機。In an external fan-shaped electric motor provided with a fan cover for housing a cooling fan on the outside of a bracket on the opposite load side, a reinforcing uneven portion is formed in an annular shape on the outer peripheral wall of the fan cover at the portion intersecting with the axial direction of the electric motor. An external fan-shaped electric motor characterized in that a guide tube for guiding cooling air from the cooling fan is integrally fixed to the inner periphery of these uneven portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22527490A JPH04109845A (en) | 1990-08-29 | 1990-08-29 | Outer fan motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22527490A JPH04109845A (en) | 1990-08-29 | 1990-08-29 | Outer fan motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04109845A true JPH04109845A (en) | 1992-04-10 |
Family
ID=16826759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22527490A Pending JPH04109845A (en) | 1990-08-29 | 1990-08-29 | Outer fan motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04109845A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006108507A1 (en) * | 2005-04-12 | 2006-10-19 | Sew-Eurodrive Gmbh & Co. Kg | Electric motor |
| EP3301790A3 (en) * | 2005-04-12 | 2018-04-11 | Sew-Eurodrive GmbH & Co. KG | Electric motor |
| CN112032065A (en) * | 2020-07-13 | 2020-12-04 | 宁波方太厨具有限公司 | Booster pump heat radiation structure |
-
1990
- 1990-08-29 JP JP22527490A patent/JPH04109845A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006108507A1 (en) * | 2005-04-12 | 2006-10-19 | Sew-Eurodrive Gmbh & Co. Kg | Electric motor |
| EA011733B1 (en) * | 2005-04-12 | 2009-04-28 | Сью-Юродрайв Гмбх Унд Ко. Кг | Electric motor |
| EP3301790A3 (en) * | 2005-04-12 | 2018-04-11 | Sew-Eurodrive GmbH & Co. KG | Electric motor |
| CN112032065A (en) * | 2020-07-13 | 2020-12-04 | 宁波方太厨具有限公司 | Booster pump heat radiation structure |
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