JPH052557U - Coreless motor - Google Patents
Coreless motorInfo
- Publication number
- JPH052557U JPH052557U JP5579891U JP5579891U JPH052557U JP H052557 U JPH052557 U JP H052557U JP 5579891 U JP5579891 U JP 5579891U JP 5579891 U JP5579891 U JP 5579891U JP H052557 U JPH052557 U JP H052557U
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical
- support
- magnet
- field magnet
- shaft
- 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.)
- Withdrawn
Links
Landscapes
- Motor Or Generator Frames (AREA)
- Dc Machiner (AREA)
Abstract
(57)【要約】
【目的】 シャフトを界磁磁石内に通さない構造の円筒
型コアレスモータにおいて、回転子の軸受間の距離を確
保し、円筒コイルの回転時の振れの増幅を押さえる。
【構成】 円筒コイル一端側にリング状軸受板を取付け
た回転子を、円筒状ハウジングケースの一端側に取付け
たブラシハウス中心部に固定された軸受と他端側に取付
けた磁石支持体軸部とで支承することにより、界磁磁石
を挟んだ軸受間距離を得る。
(57) [Abstract] [Purpose] In a cylindrical coreless motor having a structure in which the shaft does not pass through the field magnet, a distance between the bearings of the rotor is secured, and amplification of vibration during rotation of the cylindrical coil is suppressed. [Structure] A rotor having a ring-shaped bearing plate attached to one end of a cylindrical coil, a bearing fixed to the center of a brush house attached to one end of a cylindrical housing case, and a magnet support shaft attached to the other end. The bearing distance between which the field magnet is sandwiched is obtained by supporting with the field magnet.
Description
【0001】[0001]
本考案は小型のコアレスモータの回転子における軸受構造に関するものである 。 The present invention relates to a bearing structure for a rotor of a small coreless motor. .
【0002】[0002]
図3に示す従来の円筒型コアレスモータにおいては中空円筒状の界磁磁石が主 に用いられ、円筒コイル1,コイル支持体2,この支持体に形成されたコミュテ ータ3,支持体の中心を貫通して支持体に固定されたシャフト4からなる回転子 は、シャフト4が中空円筒状の界磁磁石内を通り、中空円筒状界磁磁石5の一端 側に配置された軸受6と、その他端側に配置された軸受7とで支承する構造であ った。 In the conventional cylindrical coreless motor shown in FIG. 3, a hollow cylindrical field magnet is mainly used. Used for a cylinder coil 1, a coil support 2, and a community formed on this support. Rotor comprising a shaft 3 fixed to the support 3 through the center of the support 3. Is the end of the hollow cylindrical field magnet 5 with the shaft 4 passing through the hollow cylindrical field magnet. Side bearing 6 and bearing 7 arranged on the other end side are supported. It was.
【0003】 このような構造に対し、モータの小型化を目的とした本考案者が先に出願した 実願平3−17116号では、シャフトを磁石内に貫通させるための磁石成形工程を省 略し、より小さい円柱型磁石を用いた超小型モータの構造を考案した。図2に示 す先の考案では、回転子は円筒状ハウジングケース8の一端側で磁石支持体9に 固定された円柱状界磁磁石10の先端部分に取付けた軸受11と、ハウジングケース 8の他端側に配置されたブラシハウス12内に取り付けられた軸受13とで支承され 、前記シャフト4を磁石と反対のハウジングケース側から硬質軸受板14をスラス ト受けにして出力軸を出し、軸受箇所を円柱状界磁磁石10のシャフト側に位置さ せていた。[0003] The inventor of the present invention filed an application for such a structure in order to reduce the size of the motor. In Japanese Patent Application No. 3-17116, the magnet molding process for penetrating the shaft into the magnet is omitted. For the sake of brevity, we devised the structure of a microminiature motor using a smaller cylindrical magnet. Shown in Figure 2 In the previous invention, the rotor is attached to the magnet support 9 at one end of the cylindrical housing case 8. Bearing 11 mounted on the tip of fixed cylindrical field magnet 10 and housing case 8 is supported by a bearing 13 mounted in a brush house 12 arranged on the other end side of , Thrust the hard bearing plate 14 from the housing case side of the shaft 4 opposite to the magnet. The output shaft, and place the bearing on the shaft side of the cylindrical field magnet 10. I was letting.
【0004】[0004]
このように従来、回転子の円筒コイルは片持ちで支持されているため、構造上 回転軸に対する振れがでやすい欠点があった。このため回転子の構造を変え、振 れに関する発生原因を改善し回転速度が上がったときの振れの増幅を押さえるこ とが必要となってきた。また孔無しの磁石を使った場合、軸受が回転子のシャフ ト側に二箇所必要となり、構造上軸受け間隔を幅広く得るためにはモータ全長の 増加が不可欠であり、モータ小型化への課題とされていた。 In this way, the cylindrical coil of the rotor is conventionally supported by a cantilever structure, It has a drawback that it easily shakes with respect to the rotating shaft. Therefore, change the rotor structure and To improve the cause of occurrence of vibration and suppress the amplification of shake when the rotation speed increases. And became necessary. Also, if a magnet without holes is used, the bearing will be Two parts are required on the motor side, and in order to obtain a wide bearing spacing due to the structure, The increase is indispensable and has been regarded as a challenge for motor miniaturization.
【0005】[0005]
本考案は、従来の円筒型コアレスモータにおける円筒コイル,円筒コイルの支 持体,この支持体に形成されたコミュテータ,支持体に固定されたシャフトから なる回転子において、新たに円筒コイル支持体の他端側にリング状軸受板を配置 し磁石支持体軸部で嵌合させるこにより、今まで片持ちであった円筒コイル支持 構造を両持ちにし、回転軸の高回転作動時の振れの増幅を押さえる構造にした。 The present invention relates to a cylindrical coil and a cylindrical coil support in a conventional cylindrical coreless motor. From the holding body, the commutator formed on this support, and the shaft fixed to the support A new ring-shaped bearing plate is placed on the other end of the cylindrical coil support A cylindrical coil support that was cantilevered up to now can be achieved by fitting the magnet support shaft The structure is double-supported, and the structure that suppresses the vibration amplification during high-speed rotation of the rotating shaft is adopted.
【0006】 先の考案においては、回転子のシャフトが円筒状ハウジングケースの一端側で 固定された円柱状界磁磁石の先端部分に形成された軸受とブラシハウス中心部に 固定された軸受により支承されているため、軸受け間隔が狭く円筒コイル側のバ ランスが取れなかったものを、円筒コイルを回転子の構造剛体の一部としコイル 支持体の他端側にリング状軸受板を取付けることにより、円柱状界磁磁石を挟む 軸間距離を幅広く確保でき、高回転時の回転子円筒コイル側の芯振れ防止を可能 とした。[0006] In the above invention, the rotor shaft is located at one end of the cylindrical housing case. At the center of the bearing and brush house formed at the tip of the fixed cylindrical field magnet Since it is supported by a fixed bearing, the bearing spacing is narrow and the cylindrical coil side bar is If the lance could not be taken, make a cylindrical coil part of the structural rigid body of the rotor Insert a ring-shaped bearing plate on the other end of the support to sandwich the cylindrical field magnet. A wide axial distance can be secured, and core runout on the rotor cylindrical coil side at high speeds can be prevented. And
【0007】[0007]
【実施例1】 図1は本考案のコアレスモータの構造図である。ハウジングケース8の一端側 に軸部15を成形した磁石支持体16が取付けてあり、その先端部に硬質軸受板14を 固定した円柱状界磁磁石10と接着リング17が接着され、接着リング17の内径で軸 部15にかしめられ固定されている。一方ハウジングケース8の他端側には軸受18 とブラシ19を保有したブラシハウス12が取付けてあり、これらで構成された固定 子が回転子を保持する。[Example 1] FIG. 1 is a structural diagram of a coreless motor of the present invention. One end side of housing case 8 A magnet support 16 having a shaft portion 15 formed is attached to the The fixed cylindrical field magnet 10 and the adhesive ring 17 are bonded together, and the inner diameter of the adhesive ring 17 It is crimped and fixed to the part 15. On the other hand, a bearing 18 is provided on the other end of the housing case 8. And the brush house 12 that holds the brush 19 are installed, and the fixed consisting of these The child holds the rotor.
【0008】 回転子は、円柱状界磁磁石10の回りに位置する円筒コイル1と、その一端面側 を固定するコイル支持体2,及びコイル支持体2に成形されたコミュテータ3と 中心に固定されたシャフト4から構成され、他端側で円柱状界磁磁石10を内包す るようにリング状軸受板20が磁石支持体16に成形された軸部15により支持されて いる。[0008] The rotor is a cylindrical coil 1 located around a cylindrical field magnet 10 and one end face side thereof. A coil support 2 for fixing the coil, and a commutator 3 formed on the coil support 2. It is composed of a shaft 4 fixed at the center and contains a cylindrical field magnet 10 on the other end side. So that the ring-shaped bearing plate 20 is supported by the shaft portion 15 formed on the magnet support member 16. There is.
【0009】 シャフト4の磁石側先端を略球形とし、円柱状界磁磁石10の先端に接着固定し た硬質軸受板14と接触させることによりスラストの受けとし、ブラシハウス12の 中心に位置する軸受18と磁石支持体16側の軸部15の軸受間距離を得ている。又、 回転子組立に際し、円筒コイル1とリング状軸受板20の接着固定は磁石支持体16 の端面に明けた一個以上の孔を通し、専用治具を用いて接着充填した。[0009] The end of the shaft 4 on the magnet side is made substantially spherical and is fixed to the end of the cylindrical field magnet 10 by adhesion. Of the brush house 12 by making contact with the hard bearing plate 14 to receive the thrust. The bearing distance between the bearing 18 located at the center and the shaft portion 15 on the magnet support 16 side is obtained. or, When assembling the rotor, the cylindrical coil 1 and the ring-shaped bearing plate 20 are bonded and fixed to each other by the magnet support member 16. One or more open holes were passed through the end face of the, and adhesive filling was performed using a special jig.
【0010】[0010]
【実施例2】 図4は本考案の他の実施例の構造図である。実施例1において円柱状界磁磁石 10を中空円筒状界磁磁石5とし、磁石支持体16に成形された軸部15を延長し中空 円筒内径に挿入することにより界磁磁石を直接保持し、軸部15の先端に接着固定 した硬質軸受板14がシャフト4のスラスト受けとなる。Example 2 FIG. 4 is a structural diagram of another embodiment of the present invention. Cylindrical field magnet in Example 1 10 is a hollow cylindrical field magnet 5, and a shaft portion 15 formed on a magnet support 16 is extended to be hollow. The field magnet is held directly by being inserted into the inner diameter of the cylinder, and it is adhesively fixed to the tip of the shaft part 15. The hard bearing plate 14 serves as a thrust receiver for the shaft 4.
【0011】 回転子の構造は前記実施例1同様円筒コイル1と、その一端面側を固定するコ イル支持体2,及びコイル支持体2に形成されたコミュテータ3と中心に固定さ れたシャフト4から構成され、他端側で中空円筒界磁磁石5を内包するようにリ ング状軸受板20が磁石支持体16に成形された軸部15により支持されている。[0011] The structure of the rotor is the same as that of the first embodiment, including the cylindrical coil 1 and a coil for fixing one end surface side thereof. Fixed to the center of the coil support 2 and the commutator 3 formed on the coil support 2. And a hollow cylindrical field magnet 5 on the other end side. The ring-shaped bearing plate 20 is supported by the shaft portion 15 formed on the magnet support 16.
【0012】[0012]
本考案は、従来の回転子の構造に見られるコイル支持体による円筒コイル片持 ち支持構造を、円筒コイルを回転子の構造剛体の一部として組込み、コイル両端 側に支持点を設置する支持構造に変更することにより、円筒コイルの高回転域で の変形防止やモータの組立調整が容易になり、モータ全体の回転時の振れの増幅 を押さえることが可能となった。 The present invention cantilevers the cylindrical coil by the coil support found in the conventional rotor structure. As a supporting structure, a cylindrical coil is incorporated as a part of the structural rigid body of the rotor. By changing to a support structure where a support point is installed on the side, in the high rotation range of the cylindrical coil Prevents deformation of the motor and facilitates assembly and adjustment of the motor, and amplifies runout during rotation of the entire motor. It became possible to hold down.
【0013】 更に円柱状界磁磁石を用いた前記先願のコアレスモータの様な界磁磁石の片側 に二カ所軸受けを持つタイプのモータに比べ、本考案はモータ全長幅を有効に使 った二カ所の軸受け間隔距離を有する回転子が得られるこにより、モータハウジ ング全長を短く設計することができた。[0013] Further, one side of a field magnet such as the coreless motor of the previous application using a columnar field magnet. Compared to a motor with two bearings in the center, the present invention effectively uses the full width of the motor. It is possible to obtain a rotor having two bearing spacing distances, and The overall length of the ring was able to be designed short.
【図1】本考案のコアレスモータの断面図。FIG. 1 is a sectional view of a coreless motor of the present invention.
【図2】本考案者が先に出願したコアレスモータの断面
図。FIG. 2 is a sectional view of a coreless motor previously filed by the present inventor.
【図3】従来のコアレスモータの断面図。FIG. 3 is a sectional view of a conventional coreless motor.
【図4】本考案のコアレスモータの他の実施例の断面
図。FIG. 4 is a sectional view of another embodiment of the coreless motor of the present invention.
【符号の説明】 1 円筒コイル 2 コイル支持体 3 コミュテータ 4 シャフト 5 中空円筒状界磁磁石 6 軸受 7 軸受 8 ハウジングケース 9 磁石支持体 10 円柱状界磁磁石 11 軸受 12 ブラシハウス 13 軸受 14 硬質軸受板 15 軸部 16 磁石支持体 17 接着リング 18 軸受 19 ブラシ 20 リング状軸受板[Explanation of symbols] 1 cylindrical coil 2 coil support 3 commutator 4 shafts 5 Hollow cylindrical field magnet 6 bearings 7 bearings 8 housing case 9 Magnet support 10 cylindrical field magnet 11 Bearing 12 brush house 13 Bearing 14 Hard bearing plate 15 Shaft 16 magnet support 17 Adhesive ring 18 bearings 19 brushes 20 ring bearing plate
Claims (2)
ル,円筒コイルの支持体,この支持体に形成されたコミ
ュテータ,支持体に固定されたシャフトからなる回転子
において、円柱状界磁磁石を内包するように円筒コイル
の一端に支持体及びシャフト,他端にリング状軸受板で
一体に形成し、その回転子が円筒状ハウジングケースの
一端側に取付けたブラシハウスの中心部に固定された軸
受とブラシハウスの他端側に取付けた磁石支持体軸部と
で支承された構造を特徴とするコアレスモータ。1. A rotor comprising a cylindrical coil, a support for the cylindrical coil, a commutator formed on the support, and a shaft fixed to the support in a cylindrical coreless motor so as to include a cylindrical field magnet. A bearing and a brush, which are integrally formed with a support and a shaft at one end of a cylindrical coil and a ring-shaped bearing plate at the other end, and whose rotor is fixed to the center of a brush house attached to one end of a cylindrical housing case. A coreless motor characterized by being supported by a magnet support shaft attached to the other end of the house.
し、磁石支持体軸部を中空円筒状界磁磁石内部に挿入固
定する請求項1のコアレスモータ。2. The coreless motor according to claim 1, wherein the columnar field magnet is a hollow cylindrical field magnet, and the magnet support shaft portion is inserted and fixed in the hollow cylindrical field magnet.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5579891U JPH052557U (en) | 1991-06-21 | 1991-06-21 | Coreless motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5579891U JPH052557U (en) | 1991-06-21 | 1991-06-21 | Coreless motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH052557U true JPH052557U (en) | 1993-01-14 |
Family
ID=13008936
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5579891U Withdrawn JPH052557U (en) | 1991-06-21 | 1991-06-21 | Coreless motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH052557U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100452623C (en) * | 2004-04-14 | 2009-01-14 | 思考电机(上海)有限公司 | Coreless motor and its producing and assembling method |
-
1991
- 1991-06-21 JP JP5579891U patent/JPH052557U/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100452623C (en) * | 2004-04-14 | 2009-01-14 | 思考电机(上海)有限公司 | Coreless motor and its producing and assembling method |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19950907 |