JPS61177151A - Stator of small-sized dc motor - Google Patents
Stator of small-sized dc motorInfo
- Publication number
- JPS61177151A JPS61177151A JP1786585A JP1786585A JPS61177151A JP S61177151 A JPS61177151 A JP S61177151A JP 1786585 A JP1786585 A JP 1786585A JP 1786585 A JP1786585 A JP 1786585A JP S61177151 A JPS61177151 A JP S61177151A
- Authority
- JP
- Japan
- Prior art keywords
- stator
- motor
- magnet
- small
- flux
- 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
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/17—Stator cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/40—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the arrangement of the magnet circuits
- H02K23/42—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the arrangement of the magnet circuits having split poles, i.e. zones for varying reluctance by gaps in poles or by poles with different spacing of the air gap
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/56—Motors or generators having iron cores separated from armature winding
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
- H02K5/1675—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotary shaft at only one end of the rotor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc Machiner (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はビデオ、カセットテープレコーダ等の駆動源に
用いることが出来る小型直流モータの固定子に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a stator for a small DC motor that can be used as a drive source for video, cassette tape recorders, etc.
従来の技術
近年、小型直流モータはビデオ、カセットテープレコー
ダの普及に伴ない、低コストにてトルクムラの少ないモ
ータが要望されている。2. Description of the Related Art In recent years, with the spread of video and cassette tape recorders, there has been a demand for small DC motors that are low cost and have little torque unevenness.
以下図面を参照しながら、上述した従来の小型直流モー
タ固定子の一例について説明する。An example of the conventional small DC motor stator mentioned above will be described below with reference to the drawings.
第３図は従来の小型直流モータ固定子の構造を示すもの
である。第３図において、１はフレーム２はフェライト
マグネット、３はメタル／Ｓウジフグ、４は防じんカバ
ー、６はメタルで、メタルノ）ウジング３にフェライト
マグネット２を接着剤にて固定し、防じんカバー４をは
さんでフレーム１とメタルハウジング３をカシメにて固
定し、メタルハウジング３にメタル６ｔ−圧入して固定
している。FIG. 3 shows the structure of a conventional small DC motor stator. In Fig. 3, 1 is a frame 2, which is a ferrite magnet, 3 is a metal/S dust cover, 4 is a dust cover, and 6 is a metal. The frame 1 and the metal housing 3 are fixed by caulking, and the metal 6t is press-fitted into the metal housing 3 and fixed.
発明が解決しようとする問題点
しかしながら上記のような構成では、構造が複雑で製造
工程も多くなり、又固定子の磁気回路はフェライトマグ
ネットの形状で決まり、フェライトマグネットの形状が
任意に変化させれない為に一定となるので、同一形状の
固定子においてフラックス量及びフラックス分布等の改
良が困難であり、モータに対する各種の要望特性、高ト
ルクとか低トルクムラ等の要望に対し個々に設計を変更
しなくてはならなく、又コスト的にも高いという問題点
を有していた。Problems to be Solved by the Invention However, with the above configuration, the structure is complicated and the manufacturing process is increased, and the magnetic circuit of the stator is determined by the shape of the ferrite magnet, and the shape of the ferrite magnet cannot be changed arbitrarily. Therefore, it is difficult to improve the flux amount and flux distribution in a stator of the same shape, and the design must be changed individually to meet various desired characteristics of the motor, such as high torque or low torque unevenness. In addition, there was a problem that the cost was high.
本発明は上記問題点に鑑み、低コストにて、同一形状で
各種の特性を満足するように、固定子のフラックス量及
びフラックス分布を任意に変えることの出来る小型直流
モータ固定子を提供することである。In view of the above-mentioned problems, the present invention provides a small DC motor stator in which the flux amount and flux distribution of the stator can be arbitrarily changed so as to satisfy various characteristics with the same shape at low cost. It is.
問題点を解決するだめの手段
上記問題点を解決するために本発明の小型直流モータの
固定子は、マグネット材質として樹脂マグネットを使用
し、固定子マグネットを成形する時にマグネット中に任
意の形状の空間部を有することにより、空間部の大きさ
、位置を変えるという構成を備えたものである。Means for Solving the Problems In order to solve the above problems, the stator of the small DC motor of the present invention uses a resin magnet as the magnet material, and when molding the stator magnet, an arbitrary shape is formed in the magnet. By having a space, the size and position of the space can be changed.
作用
本発明は上記した構成によって、マグネット中の空間部
の大きさ及び位置を変えることにより、フラックス量及
びフラックス分布を変え、高トルクモータ用固定子、低
トルクリップルセータ用固定子というように同一形状に
て使いわけることが出来、又低コストにて製造出来る。Effect The present invention uses the above-described configuration to change the flux amount and flux distribution by changing the size and position of the space in the magnet, so that the same stator can be used for a stator for a high torque motor or a stator for a low torque ripple sweater. It can be used depending on the shape and can be manufactured at low cost.
実施例
以下本発明の一実施例の小型直流モータの固定子につい
て、図面を参照しながら説明する。EXAMPLE Hereinafter, a stator for a small DC motor according to an example of the present invention will be described with reference to the drawings.
第１図、第２図は本発明の第１の実施例における小型直
流モータの固定子の構造を示すものである。第１図にお
いて、１はフレーム、６はメタル軸受、６は樹脂マグネ
ットで、フレーム１と一体に成形し、内周部にはメタル
軸受６を保持するための保持部６ａが設けられている。1 and 2 show the structure of a stator of a small DC motor in a first embodiment of the present invention. In FIG. 1, 1 is a frame, 6 is a metal bearing, and 6 is a resin magnet, which is molded integrally with the frame 1, and a holding portion 6a for holding the metal bearing 6 is provided on the inner peripheral portion.
７は空間部であり、樹脂マグネット６の成形時に形成し
ている。7 is a space, which is formed when the resin magnet 6 is molded.
以上のように構成された小型直流モータ固定子について
、以下第１図及び第２図を用いてその動作を説明する。The operation of the small DC motor stator constructed as described above will be described below with reference to FIGS. 1 and 2.
まず第１図は小型直流モータ固定子の断面図を示すもの
であって、樹脂マグネット６にてフレーム１に一体成形
することにより従来必要であった。First, FIG. 1 shows a sectional view of a small DC motor stator, which was conventionally required to be integrally molded with the frame 1 using resin magnets 6.
メタルハウジング、防じんカバーなどの部品及びマグネ
ットとメタルハウジングの接着、メタルハウジングとフ
レームのカシメなどの工程が不要とカリコスト的に安価
に出来る。又第２図の空間部７の形状及び位置を変える
ことにより固定子のフラックス量及びフラックス分布を
変えることが出来る。It is possible to reduce costs by eliminating the need for parts such as the metal housing and dust cover, as well as processes such as adhesion of the magnet and metal housing, and caulking of the metal housing and frame. Further, by changing the shape and position of the space 7 shown in FIG. 2, the amount of flux and flux distribution of the stator can be changed.
以上のように上記実施例によれば、樹脂マグネット６に
て、マグネット中に空間部７を継るように作成したこと
により、低コストにて同一形状のモータにて各種の特徴
を持たせることが可能な小型直流モータの固定子を作成
することが出来る。As described above, according to the above embodiment, by creating the resin magnet 6 so as to connect the space 7 in the magnet, it is possible to provide various features with a motor of the same shape at low cost. It is possible to create a stator for a small DC motor that is capable of
なお、実施例においては空間部７は完全にマグネット内
にあるが、内径及び外径に出ていてもよい。又空間部７
の所に非磁性体を使用してもよい。In the embodiment, the space 7 is completely inside the magnet, but it may extend to the inner and outer diameters. Also, space part 7
Non-magnetic material may be used in place.
発明の効果
以上のように本発明は、樹脂マグネットにより固定子を
構成し、この樹脂マグネットに任意の形状の空間部とを
設けることにより、低コストにて各種の特性を満足させ
ることができる。Effects of the Invention As described above, the present invention can satisfy various characteristics at low cost by configuring the stator with a resin magnet and providing a space portion of an arbitrary shape in the resin magnet.
第１図は本発明の第１実施例における小型直流モータの
固定子の断面図、第２図は第１図の側面図、第３図は従
来の小型直流モータの固定子の断面図である。
１・・・・・・フレーム、６・・・・・・樹脂マグネッ
ト、７・・・・・・空間部。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名萬１
図
第３図
ｆ−−フレーム
７− 安澗詳FIG. 1 is a sectional view of a stator of a small DC motor according to a first embodiment of the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a sectional view of a stator of a conventional small DC motor. . 1...Frame, 6...Resin magnet, 7...Space part. Name of agent: Patent attorney Toshio Nakao and 1 other person
Figure 3 f--Frame 7- Details of Anma
Claims (2)
この樹脂マグネットにフラックス量及び分布調整用の空
間部を形成してなる小型直流モータの固定子。(1) Consists of a resin magnet fixed to the frame,
A stator for a small DC motor is made by forming a space for adjusting flux amount and distribution in this resin magnet.
共に、その内周部にメタル軸受を保持する。 保持部を形成してなる特許請求の範囲第１項記載の小型
直流モータの固定子。(2) The resin magnet is molded integrally with the frame and holds a metal bearing on its inner periphery. A stator for a small DC motor according to claim 1, which comprises a holding portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1786585A JPS61177151A (en) | 1985-01-31 | 1985-01-31 | Stator of small-sized dc motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1786585A JPS61177151A (en) | 1985-01-31 | 1985-01-31 | Stator of small-sized dc motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61177151A true JPS61177151A (en) | 1986-08-08 |
Family
ID=11955552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1786585A Pending JPS61177151A (en) | 1985-01-31 | 1985-01-31 | Stator of small-sized dc motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61177151A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0340869U (en) * | 1989-08-29 | 1991-04-19 |
-
1985
- 1985-01-31 JP JP1786585A patent/JPS61177151A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0340869U (en) * | 1989-08-29 | 1991-04-19 |
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