JPS5847819Y2 - coreless motor - Google Patents
coreless motorInfo
- Publication number
- JPS5847819Y2 JPS5847819Y2 JP10937378U JP10937378U JPS5847819Y2 JP S5847819 Y2 JPS5847819 Y2 JP S5847819Y2 JP 10937378 U JP10937378 U JP 10937378U JP 10937378 U JP10937378 U JP 10937378U JP S5847819 Y2 JPS5847819 Y2 JP S5847819Y2
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- stator
- bearing
- yoke
- commutator
- 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
Landscapes
- Motor Or Generator Frames (AREA)
- Dc Machiner (AREA)
Description
【考案の詳細な説明】
本考案は回転子に鉄心を用いず、印刷配線シートを円筒
形に整形した回転子コイルを一端面の支持円板で片持ち
で軸支する方式のコアレスモータの改良に関するもので
ある。[Detailed description of the invention] This invention is an improvement of a coreless motor that does not use an iron core in the rotor, but instead uses a rotor coil made of a printed wiring sheet shaped into a cylindrical shape and is supported cantilevered by a support disk on one end. It is related to.
コアレスモータは負荷容量が小さいので、機械損を小さ
くするために円筒整流子、円板整流子に拘らず整流子の
摺動径を小さくすると共に軸を貫通させない構造をとっ
ている。Coreless motors have a small load capacity, so in order to reduce mechanical loss, the sliding diameter of the commutator is made small, regardless of whether it is a cylindrical commutator or a disc commutator, and the shaft does not pass through the commutator.
このような構造のモータにおいて、出力軸にピニオン、
偏心カムなどのアタッチメントを圧入して取付ける際に
、この圧入荷重を軸の他端で受けることができないので
、軸受を保持する成形体に圧入荷重が加わり、プラスチ
ックが破損し易いという問題があった。In a motor with this kind of structure, the output shaft has a pinion,
When attaching attachments such as eccentric cams by press-fitting, the other end of the shaft cannot bear the press-fitting load, so the press-fitting load is applied to the molded body that holds the bearing, causing the plastic to easily break. .
本考案は上記の問題を解決することを目的とするもので
ある。The present invention aims to solve the above problems.
第１図は従来のコアレスモータの構造を示すもので、ケ
ースを兼ねた固定子ヨーク１と固定子磁石２と軸受３を
合成樹脂成形体４で一体に固着してあり、回転子軸５の
出力端に偏心カム６あるいはピニオンなどのアタッチメ
ントが嵌込まれている。Figure 1 shows the structure of a conventional coreless motor, in which a stator yoke 1, which also serves as a case, a stator magnet 2, and a bearing 3 are fixed together with a synthetic resin molded body 4. An attachment such as an eccentric cam 6 or a pinion is fitted into the output end.
回転子軸５の他端には回転子コイル７の支持円板８が固
着され、支持円板８の他側の面には整流子９が設けられ
ている。A support disk 8 for a rotor coil 7 is fixed to the other end of the rotor shaft 5, and a commutator 9 is provided on the other surface of the support disk 8.
この種のコアレスモータは回転子コイル７に印刷配線シ
ートを用い回転子鉄心を使用せず、軽負荷にて使用され
るために、機械損を小さくする必要から整流子９の径を
小さくしており、したがって回転子軸５はケースの他端
面まで貫通させない構造となっている。This type of coreless motor uses a printed wiring sheet for the rotor coil 7, does not use a rotor core, and is used under light loads, so the diameter of the commutator 9 is made small to reduce mechanical loss. Therefore, the rotor shaft 5 is structured not to penetrate to the other end surface of the case.
このような従来例において、上述のようにアタッチメン
ト６を第１図の矢印方向に圧入すると、圧入荷重を軸の
他端で受けることができないので、軸受３を支持してい
る合成樹脂成形体４に圧入荷重が加わり軸受の周囲で成
形体４にクラックを生じやすいという問題があった。In such a conventional example, when the attachment 6 is press-fitted in the direction of the arrow in FIG. There was a problem in that the press-fitting load was applied to the molded body 4 and cracks were likely to occur around the bearing.
本考案は上記の問題を解決したもので、第２図の実施例
により詳述する。The present invention solves the above problems and will be explained in detail with reference to the embodiment shown in FIG.
第２図において、１はケースを兼ねた固定子ヨーク、２
は固定子磁石、３は軸受で、前記と同様に合成樹脂で一
体に成形４されている。In Fig. 2, 1 is a stator yoke that also serves as a case, 2
3 is a stator magnet, and 3 is a bearing, which are integrally molded 4 from synthetic resin in the same manner as described above.
回転子軸５の出力端にはアタッチメント６が嵌入され、
回転子軸５の他端は回転子コイル７の支持円板８に固着
されている。An attachment 6 is fitted into the output end of the rotor shaft 5,
The other end of the rotor shaft 5 is fixed to a support disk 8 of the rotor coil 7.
回転子コイル７は印刷配線シートを折曲しかつ円筒形に
整形されて支持円板８にて整流子セグメント１０に結線
されている。The rotor coil 7 is formed by bending a printed wiring sheet, shaped into a cylindrical shape, and connected to the commutator segment 10 through a support disk 8.
固定子ヨーク１の開口端には蓋板を兼ねた刷子板１１が
被着され、刷子板１１に貫通支持された端子１２の内側
の端部に装着された刷子１３が整流子９に摺接している
。A brush plate 11 that also serves as a cover plate is attached to the open end of the stator yoke 1, and a brush 13 attached to the inner end of a terminal 12 that is supported through the brush plate 11 slides into commutator 9. ing.
成形体４は環状の永久磁石２を内側から支持しており、
その内周面にもう１つの軸受１４を保持している。The molded body 4 supports the annular permanent magnet 2 from inside,
Another bearing 14 is held on its inner peripheral surface.
第２図に示した本考案コアレスモータにおいては、軸受
３にフランジ部３′を形成して、このフランジ部３′を
固定子ヨーク１の内縁部に外側から当接せしめ、アタッ
チメン１−６の圧入時に加わる矢印方向の荷重を成形体
４を介しないで直接固定子ヨークに受けさせるようにし
である。In the coreless motor of the present invention shown in FIG. 2, a flange portion 3' is formed on the bearing 3, and this flange portion 3' is brought into contact with the inner edge of the stator yoke 1 from the outside. The stator yoke is designed to receive the load applied in the direction of the arrow during press-fitting directly to the stator yoke without passing through the molded body 4.
１５は成形体とヨークとの結合強度を補強するためにヨ
ーク１の端面に複数個設けられた孔である。A plurality of holes 15 are provided in the end face of the yoke 1 to strengthen the bonding strength between the molded body and the yoke.
本考案は上記のように構成されているので、出力軸への
アタッチメント圧入荷重を大きくとることができ、軸と
アタッチメントを強固に固定できる利点があり、また軸
受と固定子ヨークとの固定も強固にできるので、片持ち
構造の回転子の軸振れのおそれもないなどの利点がある
。Since the present invention is constructed as described above, it has the advantage of being able to take a large load for press-fitting the attachment onto the output shaft, firmly fixing the shaft and attachment, and also firmly fixing the bearing and stator yoke. Therefore, there is an advantage that there is no risk of axial vibration of the rotor having a cantilevered structure.
第１図は従来例の断面図、第２図は本考案の一実施例の
断面図である。
１・・・・・・固定子ヨーク、２・・・・・・固定子磁
石、３・・・・・・軸受、３′・・・・・・フランジ部
、４・・・・・・成形体、５・・・・・・回転子軸、６
・・・・・・アタッチメント、７・・・・・・回転子コ
イル、８・・・・・・支持円板、９・・・・・・整流子
。FIG. 1 is a sectional view of a conventional example, and FIG. 2 is a sectional view of an embodiment of the present invention. 1... Stator yoke, 2... Stator magnet, 3... Bearing, 3'... Flange section, 4... Molding Body, 5...Rotor axis, 6
... Attachment, 7 ... Rotor coil, 8 ... Support disk, 9 ... Commutator.
Claims (1)
しその一端面に固着された支持円板の外面に整流子を設
は内面に回転子を立設し、ケースを兼ねた固定子ヨーク
と固定子磁石との間の空隙の上記回転子コイルを配し、
固定子ヨークの端面に回転子軸を突出させて回転子の軸
受と固定子磁石と固定子ヨークを合成樹脂成形体で一体
に固着し、上記軸受にフランジ部を形成して該フランジ
部を固定子ヨークの外面に当接せしめて戊るコアレスモ
ータ。A rotor coil is formed by shaping a printed wiring sheet into a cylindrical shape, and a commutator is attached to the outer surface of a support disk fixed to one end of the rotor coil. and the rotor coil is placed in the air gap between the stator magnet and the stator magnet.
The rotor shaft is protruded from the end face of the stator yoke, the rotor bearing, stator magnet, and stator yoke are fixed together with a synthetic resin molded body, and a flange is formed on the bearing and the flange is fixed. A coreless motor that comes into contact with the outer surface of the child yoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10937378U JPS5847819Y2 (en) | 1978-08-09 | 1978-08-09 | coreless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10937378U JPS5847819Y2 (en) | 1978-08-09 | 1978-08-09 | coreless motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5525790U JPS5525790U (en) | 1980-02-19 |
| JPS5847819Y2 true JPS5847819Y2 (en) | 1983-10-31 |
Family
ID=29055273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10937378U Expired JPS5847819Y2 (en) | 1978-08-09 | 1978-08-09 | coreless motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5847819Y2 (en) |
-
1978
- 1978-08-09 JP JP10937378U patent/JPS5847819Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5525790U (en) | 1980-02-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0164961U (en) | ||
| JPS5847819Y2 (en) | coreless motor | |
| JPS6298480U (en) | ||
| JPS63156567U (en) | ||
| JPS5936141Y2 (en) | coreless motor | |
| JPH0217977U (en) | ||
| JPS608550Y2 (en) | small motor | |
| JPS6011748Y2 (en) | coreless motor | |
| JPS6316302Y2 (en) | ||
| JPS6015430Y2 (en) | small motor | |
| JP3031797U (en) | Electric motor with gear | |
| JPS6268471U (en) | ||
| JPS6295484U (en) | ||
| JPS5943816Y2 (en) | coreless motor | |
| JPS6037011Y2 (en) | Fixing device for small motor stator yoke and lid body | |
| JPS6447578U (en) | ||
| JPS60181177U (en) | Permanent magnet step motor | |
| JPS62177277U (en) | ||
| JPH0297883U (en) | ||
| JPH01109271U (en) | ||
| JPS6248174U (en) | ||
| JPS5828555U (en) | liquid ring type electric motor | |
| JPH033174U (en) | ||
| JPS60147980U (en) | electric motor rotor | |
| JPS58108775U (en) | linear motor |