JPS6321176Y2 - - Google Patents
Info
- Publication number
- JPS6321176Y2 JPS6321176Y2 JP12472481U JP12472481U JPS6321176Y2 JP S6321176 Y2 JPS6321176 Y2 JP S6321176Y2 JP 12472481 U JP12472481 U JP 12472481U JP 12472481 U JP12472481 U JP 12472481U JP S6321176 Y2 JPS6321176 Y2 JP S6321176Y2
- Authority
- JP
- Japan
- Prior art keywords
- small
- shaft
- large gear
- rotor
- gear
- 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
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 238000004804 winding Methods 0.000 description 6
- 230000005284 excitation Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Motor And Converter Starters (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Description
【考案の詳細な説明】
本考案は小形電動機の回転方向規制装置、特に
交流で付勢される１個の固定子と、該固定子と対
向し上記固定子の交番磁界の作用を受けて回転す
る永久磁石を備えた回転子とより成る小形電動機
の回転方向規制装置に関するものである。[Detailed Description of the Invention] The present invention relates to a rotational direction regulating device for a small electric motor, in particular, one stator that is energized by alternating current, and a device that faces the stator and rotates under the action of an alternating magnetic field of the stator. This invention relates to a rotational direction regulating device for a small electric motor, which comprises a rotor equipped with a permanent magnet.
一般にこの種の電動機では固定子が１個でこの
固定子から回転子に対して発せられる磁束は交番
磁界であるから回転子の回転方向は最初に付勢さ
れた交流の正又は負によつて正逆いずれの方向に
も回転し回転方向が定まらないので、従来から各
種の回転方向規制装置を装着して一定方向に回転
方向を規制して実用に供している。 Generally, this type of motor has one stator, and the magnetic flux emitted from the stator to the rotor is an alternating magnetic field, so the direction of rotation of the rotor depends on the positive or negative of the initially energized alternating current. Since it rotates in either the forward or reverse direction and the direction of rotation is not fixed, various rotational direction regulating devices have been conventionally installed to regulate the rotational direction in a fixed direction for practical use.
回転方向の規制装置には大別して電気的手段と
機械的手段の２種の手段があり、電気的手段の代
表的なものとして固定子磁極の一部に短絡巻線を
設ける隈取巻線法があり機械的な摩耗部が無い点
は優れているが動作中に常に隈取巻線中に銅損が
あり温度上昇が高く効率が悪い。機械的手段によ
るものは回転子が一度起動された後は回転方向が
強制的に逆転されない限り不変である事から起動
時にこれを動作するのみで良く、定常回転時は殆
んど損失を生じないから効率が高い特長がある。 There are two types of rotational direction regulating devices: electrical means and mechanical means.A typical example of electrical means is the shaded winding method, in which a short-circuit winding is provided on a part of the stator magnetic poles. Although it is superior in that there are no mechanically worn parts, there is always copper loss in the shaded winding during operation, which causes a high temperature rise and poor efficiency. With mechanical means, once the rotor is started, the direction of rotation remains unchanged unless it is forcibly reversed, so it only needs to be operated at startup, and there is almost no loss during steady rotation. It has the feature of high efficiency.
本考案はこの機械的手段を改良したものであ
る。 The present invention is an improvement on this mechanical means.
本考案の小形電動機の回転方向規制装置は、回
転子と一体に回転する小歯車と噛合する大歯車
と、この大歯車の軸部に嵌装され、上記小歯車に
形成された係合突起と係合する小突起をその一端
に有する回転方向制御体とより成り、この回転方
向制御体は上記大歯車の軸部に嵌合する半円弧状
に左右に延びる内側腕と円弧状に左右に延びる外
側腕を有し、上記内側腕の内径は上記大歯車の軸
部の外径とほぼ等しく、上記外側腕の遊端内面と
上記内側腕の内面間で形成される円弧の直径が上
記軸部の外径より僅かに小径であることを特徴と
する。 The rotational direction regulating device for a small electric motor of the present invention includes a large gear that meshes with a small gear that rotates integrally with a rotor, and an engaging protrusion that is fitted onto the shaft of the large gear and formed on the small gear. It consists of a rotational direction control body having a small engagement projection at one end thereof, and this rotational direction control body extends left and right in a semicircular arc shape with an inner arm that fits into the shaft of the large gear and extends left and right in a semicircular arc shape. The inner diameter of the inner arm is approximately equal to the outer diameter of the shaft of the large gear, and the diameter of the arc formed between the inner surface of the free end of the outer arm and the inner surface of the inner arm is equal to the diameter of the shaft. It is characterized by having a slightly smaller diameter than the outer diameter of.
以下図面に従い従来及び本考案の実施例につい
て詳述する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Conventional embodiments and embodiments of the present invention will be described in detail below with reference to the drawings.
第１図は従来の機械的な回転方向規制装置を示
し、１は電動機の固定子、２は固定子１の磁極、
３は固定子１に設けた励磁巻線、４は上記固定子
の磁極２に若干の空隙を介して対向配置した永久
磁石の回転子、４−１は回転子軸、５は回転子４
に一体的に固着した小歯車、６と６′は回転子４
と一体的に固着した係合突起、７は小歯車５と噛
合する大歯車、８はこの大歯車７の軸部、９はこ
の軸部８に嵌装した回転方向制御体、１０はこの
回転方向制御体９の一端に設けた小突起、１１は
上記大歯車７と一体に固着した小歯車、１２は回
転方向制御体９の小突起１０の回転軌跡に固定し
たストツパー、１３は歯車列の地板である。 FIG. 1 shows a conventional mechanical rotation direction regulating device, in which 1 is the stator of the electric motor, 2 is the magnetic pole of the stator 1,
3 is an excitation winding provided on the stator 1, 4 is a permanent magnet rotor placed opposite the magnetic pole 2 of the stator with a slight gap in between, 4-1 is a rotor shaft, and 5 is a rotor 4.
Small gears 6 and 6' are integrally fixed to rotor 4.
7 is a large gear that meshes with the small gear 5; 8 is the shaft of this large gear 7; 9 is a rotational direction control body fitted to this shaft 8; 10 is this rotation A small protrusion provided at one end of the direction control body 9, 11 a small gear fixed integrally with the large gear 7, 12 a stopper fixed to the rotation locus of the small protrusion 10 of the rotation direction control body 9, 13 a gear train It is the main plate.
第１図の構成の小形電動機では励磁巻線３に適
宜の交流を流すと複数個の磁極２に交番磁界が生
成し小空隙を介して対向する永久磁石回転子４の
磁極と反撥又は吸引作用を起こし回転子４はその
時の交流の正又は負に依り時計方向又は反時計方
向に回転を始める。第１図ａにおいて回転子４が
時計方向に回転したとすると小歯車５も時計方向
に回転し、これと噛合する大歯車７は反時計方向
に回転し大歯車７の軸部に嵌装した回転方向制御
体９も反時計方向に回転しその先端に設けた小突
起１０は係合突起６より離れた後ストツパー１２
に衝突して回転方向制御体９のみは回転を止め、
大歯車７は回転を続ける。回転子４も時計方向に
回転を続け電動機として作用する。この際大歯車
７の軸部８の外径と回転方向制御体９の孔部の内
径d1との間には僅かな隙間を設けてあるからこの
間の摩擦係合力は僅かであり、回転方向制御体９
がストツパー１２に衝突するまでは軸部８と一体
的に回転し、ストツパー１２に衝突した後はスト
ツパー１２に押し付けられて停止するがこの際の
トルク損失は極めて僅かで効率を低下させるもの
ではない。 In the small electric motor having the configuration shown in FIG. 1, when an appropriate alternating current is applied to the excitation winding 3, an alternating magnetic field is generated in the plurality of magnetic poles 2, which repel or attract the magnetic poles of the permanent magnet rotor 4 that face each other through a small gap. The rotor 4 starts rotating clockwise or counterclockwise depending on whether the alternating current is positive or negative at that time. If the rotor 4 rotates clockwise in FIG. 1a, the small gear 5 also rotates clockwise, and the large gear 7 that meshes with it rotates counterclockwise and is fitted onto the shaft of the large gear 7. The rotational direction control body 9 also rotates counterclockwise, and after the small protrusion 10 provided at its tip is separated from the engagement protrusion 6, a stopper 12 is formed.
collides with the rotation direction control body 9, and only the rotation direction control body 9 stops rotating.
The large gear 7 continues to rotate. The rotor 4 also continues to rotate clockwise and acts as an electric motor. At this time, since a slight gap is provided between the outer diameter of the shaft portion 8 of the large gear 7 and the inner diameter d1 of the hole portion of the rotation direction control body 9, the frictional engagement force between them is small, and the rotation direction Control body 9
The shaft rotates integrally with the shaft 8 until it collides with the stopper 12, and after colliding with the stopper 12, it is pressed against the stopper 12 and stops, but the torque loss at this time is extremely small and does not reduce efficiency. .
一方最初の回転子４の起動方向が反時計方向で
あつたとすると小歯車５が反時計方向に回転し、
これと噛合する大歯車７は時計方向に回転し軸部
８に嵌装した回転方向制御体９も時計方向に回転
し先端の小突起１０が回転子４に設けた係合突起
６又は６′に接近し最後にこれに衝突し回転子４
の回転は一時的に停止させられる。然しながら交
流の周期の半サイクルがすぎて次のサイクルで回
転子４が時計方向に回転を開始すれば上述の如く
連続的に回転を続け電動機として動作する。 On the other hand, if the starting direction of the first rotor 4 is counterclockwise, the pinion 5 rotates counterclockwise.
The large gear 7 that meshes with this rotates clockwise, and the rotation direction control body 9 fitted on the shaft portion 8 also rotates clockwise, so that the small protrusion 10 at the tip engages with the engagement protrusion 6 or 6' provided on the rotor 4. approaches and finally collides with it, rotor 4
rotation is temporarily stopped. However, if the rotor 4 starts rotating clockwise in the next cycle after half a cycle of the alternating current cycle has passed, it continues to rotate continuously as described above and operates as an electric motor.
上述のように第１図に示す従来の小形電動機は
簡単な構造でその回転方向の規制を効率良くなし
得るので好ましいものであるが、その実施に当た
つては回転方向制御体９に設けた孔部の内径d1と
大歯車７の軸部８の外径との間の摩擦係数を常に
希望の値に管理することが大変むずかしい欠点が
あつた。 As mentioned above, the conventional small electric motor shown in FIG. There was a drawback that it was very difficult to always control the coefficient of friction between the inner diameter d 1 of the hole and the outer diameter of the shaft 8 of the large gear 7 to a desired value.
本考案はこのような従来技術の欠点を除き動作
の安定な回転方向規制装置を提供するものであ
る。 The present invention eliminates the drawbacks of the prior art and provides a rotational direction regulating device with stable operation.
本考案においては第３図に示す様に回転方向制
御体２０を板状の基部２２と、この基部２２の一
端下部に設けた前記係合突起６，６′に係合され
る小突起２１と、上記基部２２の他端に設けた上
記大歯車７の軸部８の外径に略等しい値の内径d2
の半円弧状に左右に延びる内側腕２３−１と２３
−２と、上記基部２２の中央部から上記内側腕２
３−１と２３−２を囲むよう円弧状に左右に延び
る外側腕２４−１と２４−２とにより構成し、上
記外側腕２４−１と２４−２の遊端内面と上記内
側腕２３−１と２３−２の内面間で形成される円
弧の直径d3を内径d2より僅かに短かくし上記内側
腕２３−１と２３−２の内周面に大歯車７の軸部
８に嵌装したときに外側腕２４−１と２４−２の
遊端が僅かに撓み、軸部８に圧接して所要の摩擦
係数を保持できるようにする。 In this invention, as shown in FIG. 3, the rotation direction control body 20 is made up of a plate-shaped base 22, a small protrusion 21 that is engaged with the engaging protrusions 6, 6' provided at the bottom of one end of the base 22, and a small protrusion 22 with an inner diameter d2 approximately equal to the outer diameter of the shaft portion 8 of the large gear 7 provided at the other end of the base 22.
The inner arms 23-1 and 23-2 extend left and right in a semicircular arc shape.
-2, and the inner arm 2
The diameter d3 of the arc formed between the inner surfaces of the free ends of the outer arms 24-1 and 24-2 and the inner surfaces of the inner arms 23-1 and 23-2 is made slightly shorter than the inner diameter d2 so that when the shaft portion 8 of the large gear 7 is fitted onto the inner peripheral surfaces of the inner arms 23-1 and 23-2, the free ends of the outer arms 24-1 and 24-2 bend slightly and come into pressure contact with the shaft portion 8, thereby maintaining a required coefficient of friction.
本考案の小形電動機の回転方向規制装置は上記
のような構成であるから従来の欠点を一掃するこ
とができ、特に外側腕２４−１と２４−２は基部
２２の中央部から長く延びているので圧力の変化
が少なく長期間の動作にも安定である大きな利点
がある。 Since the rotational direction regulating device for a small electric motor of the present invention has the above-mentioned configuration, the drawbacks of the conventional device can be eliminated.In particular, the outer arms 24-1 and 24-2 extend long from the center of the base 22. Therefore, it has the great advantage of having little pressure change and stable operation over long periods of time.
第１図ａは従来装置の平面図、第１図ｂはその
正面図、第２図ａは回転方向制御体の平面図、第
２図ｂはその正面図、第３図ａは本考案装置にお
ける回転方向制御体の平面図、第３図ｂはその縦
断正面図である。
１……固定子、２……磁極、３……励磁巻線、
４……回転子、４−１……回転子軸、５……小歯
車、６，６′……係合突起、７……大歯車、８…
…大歯車の軸部、９……回転方向制御体、１０…
…小突起、１１……小歯車、１２……ストツパ
ー、１３……地板、２０……回転方向制御体、２
１……小突起、２２……基部、２３−１，２３−
２……内側腕、２４−１，２４−２……外側腕。
Fig. 1a is a plan view of the conventional device, Fig. 1b is a front view thereof, Fig. 2a is a plan view of the rotational direction control body, Fig. 2b is a front view thereof, and Fig. 3a is the device of the present invention. FIG. 3b is a plan view of the rotational direction control body in FIG. 1... Stator, 2... Magnetic pole, 3... Excitation winding,
4... Rotor, 4-1... Rotor shaft, 5... Small gear, 6, 6'... Engaging protrusion, 7... Large gear, 8...
...Shaft of large gear, 9...Rotation direction control body, 10...
... Small projection, 11 ... Small gear, 12 ... Stopper, 13 ... Main plate, 20 ... Rotation direction control body, 2
1... Small projection, 22... Base, 23-1, 23-
2...inner arm, 24-1, 24-2...outer arm.
Claims (1)
車と、この大歯車の軸部に嵌装され、上記小歯車
に形成された係合突起と係合する小突起をその一
端に有する回転方向制御体とより成り、この回転
方向制御体は上記大歯車の軸部に嵌合する半円弧
状に左右に延びる内側腕と円弧状に左右に延びる
外側腕を有し、上記内側腕の内径は上記大歯車の
軸部の外径とほぼ等しく、上記外側腕の遊端内面
と上記内側腕の内面間で形成される円弧の直径が
上記軸部の外径より僅かに小径であることを特徴
とする小形電動機の回転方向規制装置。 A rotation direction in which a large gear meshes with a small gear that rotates integrally with a rotor, and a small protrusion that is fitted onto the shaft of the large gear and that engages with an engagement protrusion formed on the small gear at one end. The rotational direction control body has an inner arm that extends left and right in a semicircular arc shape and extends left and right in a semicircular shape that fits into the shaft of the large gear, and an outer arm that extends left and right in a circular arc shape, and the inner diameter of the inner arm is The diameter of the arc formed between the inner surface of the free end of the outer arm and the inner surface of the inner arm is approximately equal to the outer diameter of the shaft of the large gear, and is slightly smaller than the outer diameter of the shaft. A rotation direction regulating device for a small electric motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12472481U JPS5831761U (en) | 1981-08-25 | 1981-08-25 | Rotation direction regulating device for small electric motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12472481U JPS5831761U (en) | 1981-08-25 | 1981-08-25 | Rotation direction regulating device for small electric motors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5831761U JPS5831761U (en) | 1983-03-02 |
| JPS6321176Y2 true JPS6321176Y2 (en) | 1988-06-10 |
Family
ID=29918584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12472481U Granted JPS5831761U (en) | 1981-08-25 | 1981-08-25 | Rotation direction regulating device for small electric motors |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5831761U (en) |
-
1981
- 1981-08-25 JP JP12472481U patent/JPS5831761U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5831761U (en) | 1983-03-02 |
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