JPS5836151A - Low noise type motor - Google Patents
Low noise type motorInfo
- Publication number
- JPS5836151A JPS5836151A JP13276181A JP13276181A JPS5836151A JP S5836151 A JPS5836151 A JP S5836151A JP 13276181 A JP13276181 A JP 13276181A JP 13276181 A JP13276181 A JP 13276181A JP S5836151 A JPS5836151 A JP S5836151A
- Authority
- JP
- Japan
- Prior art keywords
- fan
- motor
- noise
- armature shaft
- rotation speed
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/14—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/09—Machines characterised by the presence of elements which are subject to variation, e.g. adjustable bearings, reconfigurable windings, variable pitch ventilators
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、正転および逆転を切替えて用いる低騒音型モ
ータに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a low-noise motor that can be switched between forward rotation and reverse rotation.
正転および逆転を切替えて用いるモータとして。As a motor that can be used by switching between forward and reverse rotation.
ここではモルレール車両の駆動用モータを例にし１よ
て説明する。モータ騒音の原因として番、冷却ファン音
、電磁音、軸受金等があるが、この中で最も大きいのが
冷却ファン音である。対策としてファン形状の改良等に
よって該騒音の低減を図っているが、ＷＪ記モル−ル車
両等に用いられるモータすなわち正転および逆転を切替
えて使用するモータ・こついてはあまり効果が上がらな
いのが現状である。そこで、モルレール車両等において
は、モータの電気子軸に直結したファンで冷却する自冷
方式では騒音が多きいため、冷却専用の低騒音のファン
を別に設置する軸冷方式を採用しているが、ダクト等が
必要となるなど構造が複雑になるという欠点があった。Here, a description will be given using a drive motor for a mole rail vehicle as an example. Causes of motor noise include noise, cooling fan noise, electromagnetic noise, bearing metal, etc., but the loudest of these is cooling fan noise. As a countermeasure, attempts have been made to reduce the noise by improving the shape of the fan, etc., but the effect is not very effective due to the motors used in WJ motor vehicles, etc., which are used by switching between forward and reverse rotation. This is the current situation. Therefore, in Morrail vehicles, etc., the natural cooling method that cools the motor with a fan directly connected to the armature shaft generates a lot of noise, so a shaft cooling method is used in which a low-noise fan is installed separately for cooling. , ducts, etc. were required, making the structure complicated.
また、定格回転数を下げることによりファン回転数を下
げて低騒音化を図ることも考えられるが、モータが大型
になり重量の増加等の欠点がある。なお、現在モルレー
ル車両等においては、モータの小型化を図るため、該モ
ータの定格回転数が高（なる傾向にあり、前記のような
欠点が問題となっている。It is also possible to reduce noise by lowering the fan rotation speed by lowering the rated rotation speed, but this has drawbacks such as an increase in the size of the motor and increased weight. In addition, in current mole rail vehicles and the like, in order to reduce the size of the motor, the rated rotational speed of the motor tends to be high, and the above-mentioned drawbacks have become a problem.
ところで、自動車のラジェータ冷却用ファンは通常エン
ジンの主軸に取付けられるか、ｔたは、■ベルトを介し
て駆動される構成であるため、該エンジン軸と同一回転
数で回転している。このため、エンジンの回転数が高く
なると、ファンによる消費動力が増大するとともに、フ
ァンによる騒音が大きくなり、特に高速走行時において
は、エンジンの過冷却が起きるといった問題があった。By the way, the radiator cooling fan of an automobile is usually attached to the main shaft of the engine or driven via a belt, so that it rotates at the same rotation speed as the engine shaft. For this reason, when the engine speed increases, the power consumed by the fan increases, the noise generated by the fan increases, and there is a problem in that the engine becomes overcooled, especially when driving at high speed.
これらの問題を解決するために、流体の粘度を利用して
所定以上の回転トルクを伝えない流体継手（以下本に流
体継手という）が開発されている。In order to solve these problems, fluid couplings (hereinafter referred to as "fluid couplings") have been developed that utilize the viscosity of fluid to prevent rotational torque exceeding a predetermined level from being transmitted.
すなわち、該流体継手を介して前記ファンを駆動し、該
ファンの回転数を常に所定回転数以下に保つようにして
いる。That is, the fan is driven via the fluid coupling, and the number of rotations of the fan is always kept below a predetermined number of rotations.
本発明は、上記流体継手を介してモータの冷却ファンを
駆動し、モータの回転数に関係な鴫ファンの回転数を所
定値以下とし、該ファンによる馳貴および消費動力を低
減することを目的としたものである。An object of the present invention is to drive the cooling fan of the motor through the fluid coupling, to reduce the rotational speed of the fan, which is related to the rotational speed of the motor, to a predetermined value or less, and to reduce the power consumption and power consumption by the fan. That is.
本発明は、モータに内蔵され、該モータを冷却するファ
ンを前記所定以上の回転トルクを伝えない流体継手を介
して駆動する構成とし、モータの小型化ｌ二伴う定格回
転数の増大によって起こる騒音および消費動力の増大を
防止することを特徴とするものである。The present invention has a configuration in which a fan that is built into a motor and that cools the motor is driven through a fluid coupling that does not transmit a rotational torque exceeding the predetermined value, and noise caused by an increase in the rated rotational speed accompanying miniaturization of the motor. The present invention is characterized by preventing an increase in power consumption.
次に本発明を図に示す一実施例によって説明する。第１
図は、本発明による低騒音型モータの一実施例の側面図
、第２図は流体継手部を拡大した拡大断面図である。図
において、１は電気子軸で両端を軸受により支持されて
いる。２は前記電気子軸ｌに取付けられた電気子、３は
該電気子２の外周に対応して設けられた界磁である。４
は電気子軸１の端部に流体継手を介して取付けられたモ
ータ冷却用のファンである。５は前記電気子軸１、磁界
３が取付けられ、ファン４による風の吸入口および吐出
口を形成するケーシングである。６は前記電気子軸１の
軸端すなわちファン４を設置する箇所に設けられた流体
継手である。該流体継手６の詳細は第２図に示すように
、ベアリング７を介して本体８が取付けられ、該ベアリ
ング７０軸端側に中間部材９が設けられている。そして
、該中間部材９は前記本体８とカバー１０とで形成され
る油室１１内に位置している。油室１１内は通常シリコ
ン油で満たされており、該シリコン油の粘度摩擦により
電気子軸ｌからファン４への回転トルクを伝達している
。なお、ファン４は前配本体８およびカバー１０を結合
するボルトによって本流体継手６に取付けられている。Next, the present invention will be explained with reference to an embodiment shown in the drawings. 1st
The figure is a side view of one embodiment of a low-noise motor according to the present invention, and FIG. 2 is an enlarged cross-sectional view of a fluid coupling section. In the figure, 1 is an armature shaft supported at both ends by bearings. 2 is an armature attached to the armature shaft l, and 3 is a field provided corresponding to the outer periphery of the armature 2. 4
is a motor cooling fan attached to the end of the armature shaft 1 via a fluid coupling. Reference numeral 5 denotes a casing to which the armature shaft 1 and the magnetic field 3 are attached, and which forms an inlet and an outlet for air from the fan 4. Reference numeral 6 denotes a fluid coupling provided at the shaft end of the armature shaft 1, that is, at the location where the fan 4 is installed. As shown in FIG. 2, the details of the fluid coupling 6 include a main body 8 attached via a bearing 7, and an intermediate member 9 provided on the shaft end side of the bearing 70. The intermediate member 9 is located within an oil chamber 11 formed by the main body 8 and the cover 10. The inside of the oil chamber 11 is normally filled with silicone oil, and rotational torque from the armature shaft l to the fan 4 is transmitted by the viscosity friction of the silicone oil. Note that the fan 4 is attached to the main fluid coupling 6 by bolts that connect the front main body 8 and the cover 10.
このような構成において、モータが作動し電気子軸１が
回転して、所定回転数以上になると、電気子軸１からフ
ァン４へ伝わるトルクが前記シリコン油の粘性摩擦を上
回るため、それ以上ファン４は回転数が上がらなくなる
。したがって、騒音が大きくならず、また、消費動力も
増大することがない。なお、前記電気子軸１とファン４
の回転数を横軸および縦軸にとったグラフが第３図であ
る。図示実線のように電気子軸１の回転数が低い状態で
はファン４はほぼ同様に回転するが、回転数が高くなる
螢こ伴ってその回転数は横ばいとなっている。なお、点
線にてファン４と電気子軸１の回転数が同一の場合を示
している。また、ファン４の回転数と該ファン４の消費
動力および騒音の値を横軸および縦軸にとったのが第４
図である。In such a configuration, when the motor operates and the armature shaft 1 rotates, and the rotation speed exceeds a predetermined number, the torque transmitted from the armature shaft 1 to the fan 4 exceeds the viscous friction of the silicone oil, so that the fan no longer 4, the rotation speed will not increase. Therefore, noise does not increase and power consumption does not increase. Note that the armature shaft 1 and the fan 4
FIG. 3 is a graph in which the horizontal and vertical axes represent the number of revolutions. When the rotation speed of the armature shaft 1 is low, as shown by the solid line in the figure, the fan 4 rotates almost in the same way, but as the rotation speed increases, the rotation speed remains unchanged. Note that the dotted line indicates the case where the rotation speeds of the fan 4 and the armature shaft 1 are the same. In addition, the number of rotations of the fan 4 and the power consumption and noise values of the fan 4 are plotted on the horizontal and vertical axes.
It is a diagram.
図示のようにファン４の回転数が上がれば当然消費動力
（実線）および騒音（点線）は上がり増大する。したが
って、前述のようにファン４の回転数が上がらないため
、消費動力と騒音は一足以上上昇することはない。As shown in the figure, as the rotational speed of the fan 4 increases, the power consumption (solid line) and noise (dotted line) naturally increase. Therefore, as described above, since the rotation speed of the fan 4 does not increase, the power consumption and noise do not increase by more than one foot.
以上説明したように本発明によれば、モータが高速回転
してもファンは所定の回転数以上にならないため、ファ
ンによる消費動力が増大することｓ
はなく、また、ファンによる騒音の増大も前止できる。As explained above, according to the present invention, even if the motor rotates at high speed, the fan does not exceed a predetermined rotation speed, so the power consumption by the fan does not increase, and the noise caused by the fan does not increase. Can be stopped.
第１図は本発明による低騒音型モータの一実施例を示す
側面図、第２図は本発明による一実施例の低騒音型モー
タの流体継手部を拡大した拡大断面図、１３３図は横軸
に電気子軸回転数、縦軸にファン回転数をとったグラフ
、第４図は横軸にファ１′、。
ン回転数、縦軸！フン消費動力および騒音をとったグラ
フである。
１・・・・・電気子軸、２・・・・・・電気子、３・・
・・・・磁界、４・・・・・ファン、５・・・・・・ケ
ーシング、６・・・・・・流体継手
代理人 弁理士 薄 １）利 幸
才１図
５
′＃′２図FIG. 1 is a side view showing an embodiment of a low-noise motor according to the present invention, FIG. 2 is an enlarged cross-sectional view of a fluid coupling portion of a low-noise motor according to an embodiment of the present invention, and FIG. The graph shows the armature shaft rotation speed on the axis and the fan rotation speed on the vertical axis, and in FIG. 4, the horizontal axis shows F1'. Rotation speed, vertical axis! This is a graph showing the power consumption and noise of the feces. 1... Armature axis, 2... Armature, 3...
...Magnetic field, 4...Fan, 5...Casing, 6...Fluid coupling agent Patent attorney Usui 1) Kosai Ri 1 Figure 5 '#'2 Figure
Claims (1)
タにおいて、電気子軸に取付けられるファンを所定の回
転トルク以上は伝達しない流体継手を介して電気子軸に
取付けたことを特徴とする低騒音型モータ。1. In a motor that rotates at high speed by switching between normal rotation and reverse rotation, the fan attached to the armature shaft is attached to the armature shaft via a fluid coupling that does not transmit more than a predetermined rotational torque. Noise type motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13276181A JPS5836151A (en) | 1981-08-26 | 1981-08-26 | Low noise type motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13276181A JPS5836151A (en) | 1981-08-26 | 1981-08-26 | Low noise type motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5836151A true JPS5836151A (en) | 1983-03-03 |
Family
ID=15088931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13276181A Pending JPS5836151A (en) | 1981-08-26 | 1981-08-26 | Low noise type motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5836151A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6431836U (en) * | 1987-08-22 | 1989-02-28 | ||
| US6079958A (en) * | 1997-10-03 | 2000-06-27 | Roper Holdings, Inc. | Dry-pit submersible pump having a fan and a torque-relieving mechanism |
| US6783322B2 (en) | 2002-04-23 | 2004-08-31 | Roper Holdings, Inc. | Pump system with variable-pressure seal |
| JP2018078726A (en) * | 2016-11-09 | 2018-05-17 | 株式会社荏原製作所 | Electric motor and pump unit |
-
1981
- 1981-08-26 JP JP13276181A patent/JPS5836151A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6431836U (en) * | 1987-08-22 | 1989-02-28 | ||
| US6079958A (en) * | 1997-10-03 | 2000-06-27 | Roper Holdings, Inc. | Dry-pit submersible pump having a fan and a torque-relieving mechanism |
| GB2334553B (en) * | 1997-10-03 | 2002-05-15 | Cornell Pump Mfg Corp | Dry-pit submersible pump |
| US6783322B2 (en) | 2002-04-23 | 2004-08-31 | Roper Holdings, Inc. | Pump system with variable-pressure seal |
| JP2018078726A (en) * | 2016-11-09 | 2018-05-17 | 株式会社荏原製作所 | Electric motor and pump unit |
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