JPH0150185B2 - - Google Patents
Info
- Publication number
- JPH0150185B2 JPH0150185B2 JP14002084A JP14002084A JPH0150185B2 JP H0150185 B2 JPH0150185 B2 JP H0150185B2 JP 14002084 A JP14002084 A JP 14002084A JP 14002084 A JP14002084 A JP 14002084A JP H0150185 B2 JPH0150185 B2 JP H0150185B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- rotor
- rigid body
- central shaft
- stators
- 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
- 230000005284 excitation Effects 0.000 claims description 5
- 238000004804 winding Methods 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
- H02K21/18—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having horse-shoe armature cores
- H02K21/185—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having horse-shoe armature cores with the axis of the rotor perpendicular to the plane of the armature
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、表示装置の駆動機構などに用いられ
る電磁モータに関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an electromagnetic motor used in a drive mechanism of a display device, etc.
（従来の技術）
従来技術として、例えば実公昭58−9502号公報
がある。この従来技術は、コイルボビンの側板お
よび軸受部を一体に形成した小型モータに関する
ものである。(Prior art) As a prior art, there is, for example, Japanese Utility Model Publication No. 58-9502. This prior art relates to a small motor in which a side plate of a coil bobbin and a bearing portion are integrally formed.
（解決しようとする課題）
しかし上記の従来技術によれば、コイルボビン
にコイルを巻回すると、コイルの巻締力によつて
コイルボビンの側板（つば部）が変形し、ロータ
の軸受部の位置が変化してしまう欠点があつた。(Problem to be Solved) However, according to the above-mentioned conventional technology, when a coil is wound around a coil bobbin, the winding force of the coil deforms the side plate (flange) of the coil bobbin, causing the position of the rotor bearing to change. It has the disadvantage of changing.
本発明の目的は、ロータの軸受部の位置が変化
しにくく、またステータとロータとの位置関係が
変化しにくいコイルボビンを有する電磁モータを
提供することにある。 SUMMARY OF THE INVENTION An object of the present invention is to provide an electromagnetic motor having a coil bobbin in which the position of a bearing portion of a rotor is not easily changed and the positional relationship between a stator and a rotor is not easily changed.
（課題を解決するための手段）
本発明の電磁モータは、永久磁石ロータと、こ
のロータを駆動するステータと、このステータに
コイルボビンを介して巻回されている励磁用コイ
ルとからなるものであつて、その特徴は、上記コ
イルボビンに上記ステータが嵌挿入される中空筒
形の中心軸部と、上記中心軸部の両端部より径方
向に一体突出するつば状のコイル受部と、上記コ
イル受部の一方と所定の間隔をもつて径方向に一
体突出する厚肉の剛体部と、上記剛体部より軸方
向に一体突出し、かつ上記ロータを回転自在に支
持する軸受部とが形成してあり、さらに、上記剛
体部には、上記ステータを所定の位置に固定する
ための位置決め部が一体に形成してあるところに
ある。(Means for Solving the Problems) An electromagnetic motor of the present invention includes a permanent magnet rotor, a stator for driving the rotor, and an excitation coil wound around the stator via a coil bobbin. Its features include: a hollow cylindrical central shaft portion into which the stator is fitted and inserted into the coil bobbin; a flange-shaped coil receiving portion integrally protruding from both ends of the central shaft portion in the radial direction; and the coil receiving portion. A thick rigid body part integrally projects in the radial direction at a predetermined distance from one of the parts, and a bearing part integrally projects in the axial direction from the rigid body part and rotatably supports the rotor. Furthermore, a positioning portion for fixing the stator at a predetermined position is integrally formed in the rigid body portion.
（実施例）
以下本発明の一実施例を図面に基いて説明す
る。(Example) An example of the present invention will be described below based on the drawings.
第６，７図は本発明のコイルボビンを用いた複
数の電磁モータにより、日の字状に配列された反
転式の表示セグメントを反転させて表示を行なう
表示装置である。電磁モータ１は、永久磁石ロー
タ６と、このロータ６を駆動するステータ４，５
と、このステータ４，５にコイルボビン２を介し
て巻回されている励磁用コイル３とからなり、前
面カバー７にねじ止めされている。 FIGS. 6 and 7 show a display device in which a plurality of electromagnetic motors using the coil bobbin of the present invention performs display by inverting reversible display segments arranged in a Japanese character shape. The electromagnetic motor 1 includes a permanent magnet rotor 6 and stators 4 and 5 that drive the rotor 6.
and an excitation coil 3 wound around the stators 4 and 5 via a coil bobbin 2, and screwed to the front cover 7.
前面カバー７には日の字状に７個の表示窓７ａ
………が穿設され、各表示窓には７個の表示セグ
メント８………が回転自在に支持されている。表
示セグメント８………は表示部８ａ………、非表
示部８ｂ………が設けてあり、連動穴８ｃ………
に電磁石装置１のロータ６から突出する駆動アー
ム６ａの駆動ピン６ｂが挿入され、電磁石装置１
により反転駆動されるものである。表示部８ａ…
……は光を透過し、非表示部８ｂ………は光を透
過しないように構成され、背後の光源９からの光
線により表示部８ａ………は光を透過して表示可
能である。 The front cover 7 has seven display windows 7a in a Japanese character shape.
. . . are bored, and seven display segments 8 . . . are rotatably supported in each display window. The display segment 8 is provided with a display portion 8a, a non-display portion 8b, and an interlocking hole 8c.
The drive pin 6b of the drive arm 6a protruding from the rotor 6 of the electromagnet device 1 is inserted into the electromagnet device 1.
It is driven in reverse by. Display section 8a...
. . . are configured to transmit light, non-display portions 8b . . . are configured not to transmit light, and display portions 8a .
ここで第１〜７図を参照し、コイルボビン２に
ついて詳細に説明する。 The coil bobbin 2 will now be described in detail with reference to FIGS. 1 to 7.
中心軸部２ａは中空筒形をなし、中空内部には
ステータ４，５が嵌挿入される。中心軸部２ａの
両端部には、つば状のコイル受部２ｂ，２ｃが径
方向に一体に突出形成してある。コイル受部２
ｂ，２ｃの一方（本実施例では２ｃ）には、取付
ねじの貫通する取付ねじ孔２ｄ，２ｄが穿設して
ある。コイル受部２ｂの上方には、中心軸部２ａ
より延出しかつコイル受部２ｂと所定の間隔ｄを
もつ剛体部２ｅが、径方向に一体に突出形成して
ある。剛体部２ｅの肉厚は、中心軸部２ａおよび
コイル受部２ｂの肉厚よりも大きく、厚肉であ
る。そして剛体部２ｅから軸受部２ｆ，２ｆが軸
方向に一体に突出形成してある。軸受部２ｆ，２
ｆには、ロータ６の軸受孔２ｇ，２ｇが穿設され
ており、ロータ６を回転自在に支持する。剛体部
２ｅには、ステータ４，５を所定の位置に固定す
るための位置決め部２ｈ，２ｉが一体に形成して
ある。 The central shaft portion 2a has a hollow cylindrical shape, and the stators 4 and 5 are fitted into the hollow interior. At both ends of the central shaft portion 2a, collar-shaped coil receiving portions 2b and 2c are integrally formed to protrude in the radial direction. Coil receiving part 2
One of b and 2c (2c in this embodiment) is provided with mounting screw holes 2d and 2d through which the mounting screw passes. Above the coil receiving part 2b is a central shaft part 2a.
A rigid body part 2e extending further and having a predetermined distance d from the coil receiving part 2b is integrally formed to protrude in the radial direction. The thickness of the rigid body part 2e is larger than that of the central shaft part 2a and the coil receiving part 2b. Bearing portions 2f, 2f are integrally formed to protrude from the rigid body portion 2e in the axial direction. Bearing portion 2f, 2
Bearing holes 2g, 2g for the rotor 6 are bored in f, and rotatably supports the rotor 6. Positioning portions 2h and 2i for fixing the stators 4 and 5 at predetermined positions are integrally formed on the rigid body portion 2e.
第２図想像線にて示すように、位置決め部２ｈ
はステータ４の位置決め孔４ａ内に挿入し、ステ
ータ４を所定の位置に正確に固定するものであ
る。さらに位置決め部２ｉはステータ５の位置決
め端片５ａと当接し、ステータ５を所定の位置に
正確に固定するものである。 As shown by the imaginary line in Figure 2, the positioning part 2h
is inserted into the positioning hole 4a of the stator 4 to accurately fix the stator 4 in a predetermined position. Further, the positioning portion 2i comes into contact with the positioning end piece 5a of the stator 5, and accurately fixes the stator 5 in a predetermined position.
つぎに本発明の作用について説明する。 Next, the operation of the present invention will be explained.
コイルボビン２の中心軸部２ａ外周に励磁用コ
イル３を巻回すると、コイル３を巻くにつれてコ
イル受部２ｂ，２ｃに外方に向けての力が作用す
る。この力によつて、コイル受部２ｂ，２ｃは、
コイル３の巻数や巻締力などにより僅かに外方に
変形することもある。 When the excitation coil 3 is wound around the outer periphery of the central shaft portion 2a of the coil bobbin 2, an outward force acts on the coil receiving portions 2b and 2c as the coil 3 is wound. Due to this force, the coil receiving parts 2b and 2c are
It may deform slightly outward depending on the number of turns of the coil 3, winding force, etc.
しかしコイル受部２ｂの外側に間隔ｄをもつて
離れて形成された厚肉の剛体部２ｅは、たとえコ
イル受部２ｂが変形しても影響を受けず、変形す
ることはない。したがつて軸受部２ｆ，２ｆの軸
受孔２ｇ，２ｇ、位置決め部２ｈ，２ｉは初期の
精度が保たれている。コイルボビン２にコイル３
を巻回したあと、軸受部２ｆ，２ｆを外側に広
げ、ロータ６を軸受穴２ｇ，２ｇにより支持す
る。つぎに中心軸部２ａの中空部に、上方よりス
テータ４を第２図のように左方にずらして挿入
し、位置決め孔４ａに位置決め部２ｈを嵌合させ
る。そのあと中空部に下方よりステータ５を挿入
し、位置決め端辺５ａを位置決め部２ｉに当接さ
せる。これによりロータ６およびステータ４，５
はコイルボビン２に正確な位置関係で取付けるこ
とができ、ロータ６の回転トルクは目標値と変化
することはない。 However, the thick rigid body part 2e, which is formed outside the coil receiving part 2b at a distance d, is not affected even if the coil receiving part 2b is deformed, and will not be deformed. Therefore, the initial accuracy of the bearing holes 2g, 2g of the bearing parts 2f, 2f and the positioning parts 2h, 2i is maintained. Coil 3 on coil bobbin 2
After winding, the bearing portions 2f, 2f are expanded outward, and the rotor 6 is supported by the bearing holes 2g, 2g. Next, the stator 4 is inserted into the hollow part of the central shaft part 2a from above while being shifted to the left as shown in FIG. 2, and the positioning part 2h is fitted into the positioning hole 4a. Thereafter, the stator 5 is inserted into the hollow portion from below, and the positioning edge 5a is brought into contact with the positioning portion 2i. As a result, the rotor 6 and stators 4 and 5
can be attached to the coil bobbin 2 in an accurate positional relationship, and the rotational torque of the rotor 6 will not change from the target value.
なお本実施例では、表示装置用の駆動モータと
した例をもとに説明したが、これに限定されるも
のではない。またステータ４，５を２部品として
構成してあるが、１部品にて構成し、一方から装
着するものであつてもよい。 Although this embodiment has been described based on an example of a drive motor for a display device, the present invention is not limited to this. Further, although the stators 4 and 5 are constructed as two parts, they may be constructed as one part and mounted from one side.
（効 果）
以上のように本発明によれば、ロータの軸受部
をコイル受部から離れた厚肉の剛体部に一体形成
してあるため、コイルの巻締力によつてコイル受
部がたとえ変形しても、初期の位置精度を損なう
ことがない。(Effects) As described above, according to the present invention, since the bearing portion of the rotor is integrally formed with the thick rigid body portion separated from the coil receiving portion, the coil receiving portion is moved by the winding force of the coil. Even if it is deformed, the initial positional accuracy will not be lost.
さらに剛体部には、ステータの位置決め部が一
体形成してあるため、ロータとステータとの位置
精度が良好となる。 Further, since the stator positioning section is integrally formed in the rigid body section, the positional accuracy between the rotor and the stator is improved.
また部品点数が少ないので、組立が容易であ
る。 Furthermore, since the number of parts is small, assembly is easy.
図面は本発明の一実施例を示すものであつて、
第１図は断面図、第２図は第１図−線断面
図、第３図は平面図、第４，５図はそれぞれステ
ータの正面図、第６図は本発明の電磁モータを用
いた表示装置の断面図、第７図はその縮小正面図
である。
１……電磁モータ、２……コイルボビン、２ａ
……中心軸部、２ｂ，２ｃ……コイル受部、２ｅ
……剛体部、２ｆ……軸受部、２ｈ，２ｉ……位
置決め部、３……励磁用コイル、４，５……ステ
ータ、６……永久磁石ロータ。
The drawings show one embodiment of the invention,
Fig. 1 is a sectional view, Fig. 2 is a sectional view taken along the line of Fig. 1, Fig. 3 is a plan view, Figs. A sectional view of the display device, and FIG. 7 is a reduced front view thereof. 1... Electromagnetic motor, 2... Coil bobbin, 2a
...Central shaft part, 2b, 2c...Coil receiving part, 2e
... Rigid body part, 2f ... Bearing part, 2h, 2i ... Positioning part, 3 ... Excitation coil, 4, 5 ... Stator, 6 ... Permanent magnet rotor.
Claims (1)
ステータ４，５と、このステータにコイルボビン
２を介して巻回されている励磁用コイル３とから
なり、 上記コイルボビン２には、上記ステータ４，５
が嵌挿入される中空筒形の中心軸部２ａと、 上記中心軸部２ａの両端部より径方向に一体突
出するつば状のコイル受部２ｂ，２ｃと、 上記コイル受部２ｂ，２ｃの一方と所定の間隔
ｄをもつて径方向に一体突出する厚肉の剛体部２
ｅと、 上記剛体部２ｅより軸方向に一体突出し、かつ
上記ロータ６を回転自在に支持する軸受部２ｆと
が形成してあり、 上記剛体部２ｅには、上記ステータ４，５を所
定の位置に固定するための位置決め部２ｈ，２ｉ
が一体に形成してある ことを特徴とする電磁モータ。[Claims] 1. Consists of a permanent magnet rotor 6, stators 4 and 5 for driving this rotor, and an excitation coil 3 wound around this stator via a coil bobbin 2. , the stators 4 and 5
A hollow cylindrical central shaft portion 2a into which the central shaft portion 2a is fitted, collar-shaped coil receiving portions 2b and 2c integrally projecting in the radial direction from both ends of the central shaft portion 2a, and one of the coil receiving portions 2b and 2c. and a thick rigid body part 2 that integrally projects in the radial direction with a predetermined interval d.
e, and a bearing portion 2f that integrally projects from the rigid body portion 2e in the axial direction and rotatably supports the rotor 6, and the rigid body portion 2e holds the stators 4, 5 at predetermined positions. Positioning parts 2h, 2i for fixing to
An electromagnetic motor characterized by being integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14002084A JPS6122742A (en) | 1984-07-06 | 1984-07-06 | Electromagnet unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14002084A JPS6122742A (en) | 1984-07-06 | 1984-07-06 | Electromagnet unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6122742A JPS6122742A (en) | 1986-01-31 |
| JPH0150185B2 true JPH0150185B2 (en) | 1989-10-27 |
Family
ID=15259070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14002084A Granted JPS6122742A (en) | 1984-07-06 | 1984-07-06 | Electromagnet unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6122742A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH074321B2 (en) * | 1986-07-23 | 1995-01-25 | 松下電器産業株式会社 | Water heater |
-
1984
- 1984-07-06 JP JP14002084A patent/JPS6122742A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6122742A (en) | 1986-01-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |