JP3613756B2 - Outer rotor motor - Google Patents

Outer rotor motor Download PDF

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Publication number
JP3613756B2
JP3613756B2 JP30369799A JP30369799A JP3613756B2 JP 3613756 B2 JP3613756 B2 JP 3613756B2 JP 30369799 A JP30369799 A JP 30369799A JP 30369799 A JP30369799 A JP 30369799A JP 3613756 B2 JP3613756 B2 JP 3613756B2
Authority
JP
Japan
Prior art keywords
outer rotor
rotor motor
core
mounting plate
fixed
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 - Lifetime
Application number
JP30369799A
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Japanese (ja)
Other versions
JP2001128421A (en
Inventor
正 深美
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oken Seiko Co Ltd
Original Assignee
Oken Seiko Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Oken Seiko Co Ltd filed Critical Oken Seiko Co Ltd
Priority to JP30369799A priority Critical patent/JP3613756B2/en
Publication of JP2001128421A publication Critical patent/JP2001128421A/en
Application granted granted Critical
Publication of JP3613756B2 publication Critical patent/JP3613756B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【0001】
【発明の属する技術分野】
本発明はアウターローターモーターに関するものである。
【0002】
【従来の技術】
従来のアウターローターモーターは、図3に示す通りである。この図において、1は珪素鋼等を打ち抜いたものを複数枚積層し、黄銅等を切削して製作したブッシュ2に固定したコアーで、ブッシュ2の一方の端を取付板3にカシメ等によって固定し、又ブッシュ2内に軸受け4、5を圧入し、これによりブッシュ2の中央両端に軸受け4、5が取りつけられている。
【0003】
上記のコアー1は、両端よりインシュレーター6、7をかぶせ、その間に銅線8が巻かれた構成になっている。又9は端子で銅線8の巻き始め巻き終りが電気的に接続されており、基板10を通し図示しない制御回路に固定され、これらで固定子が構成される。
【0004】
また回転子は、内側にマグネット11を固定し、中央部に出力軸14を圧入したカラー13をカシメ等にて固定したカップ形のケース12からなり出力軸14を、前記の軸受け4、5により回転可能に支持されている。
【0005】
これらによりアウターローターモーターが形成される。
【0006】
このようなアウターローターモーターは、マグネット11に対向する位置に配置されているホール素子(図示していない)を有していて、このホール素子によりマグネットの位置を検出するかあるいは、コイルに現れる波形を利用する等により各コイルに流れる電流を制御して一方向に回転するようにしている。
【0007】
【発明が解決しようとする課題】
このような構成の従来のアウターローターモーターは、使用されているコアー1と取付板3との間にあるブッシュ2は切削により製作されるために高価であり、モーターはコスト高になる。
【0008】
本発明は、製作が容易で組立てが簡単で、低コストのアウターローターモーターを提供することにある。
【0009】
【課題を解決するための手段】
本発明のモーターは、巻線したコアーを取付板に固定し、コアーの外側にマグネットを有する回転子を配置したアウターローターモーターで、取付板にパイプ取付孔を形成し、この取付孔にプレス加工により形成したパイプを圧入して固定し、このパイプにコアーを固定したことを特徴とする。
【0010】
又本発明のアウターローターモーターは、取付板の中央部を円筒形に絞ってコアー固定部を形成し、このコアー固定部にコアーを取り付けたことを特徴とする。
【0011】
【発明の実施の形態】
次に本発明の実施の形態について述べる。
【0012】
図1は本発明の第1の実施の形態を示すもので、1はコアー、3は取付板、4、5は軸受、6、7はインシュレーター、8は銅線、9は端子、10は基板、11はマグネット、12はケース、13はカラー、14は出力軸であり、これらは、図3に示す従来のモーターと実質上同じ構成である。
【0013】
この第1の実施の形態のアウターローターモーターは、ブッシュ2の代わりに図1(B)に示すようにプレス加工により板を円筒状に絞ったパイプ15を形成し、このパイプ15を取付板3に形成した絞り孔(取付孔)に圧入するようにしたことを特徴とする。
【0014】
このように第1の実施の形態は、図1(B)に示すようなパイプを用いることにより製作が簡単になりコストを低減させることができる。
【0015】
また取付板3へのパイプ15の取り付けも単なる圧入によるため極めて簡単であり、調整も簡単である。
【0016】
図2は本発明の第2の実施の形態のアウターローターモーターを示す図である。
【0017】
この第2の実施の形態は、第1の実施の形態と同様に取付板3とブッシュ部2以外のものは、図3に示す従来のアウターローターモーターと実質上同じ構成である。
【0018】
この第2の実施の形態は、取付板16を図2に示すように絞り加工によってコアー固定部16aを一体に形成したことを特徴とする。
【0019】
これによりこのコアー固定部の形成が一層容易になり、又部品点数も少なくなる。
【0020】
【発明の効果】
本発明のアウターローターモーターは、高価なブッシュを用いることなく、また部品の製造や組立て作業等が簡単になり安価に製造し得る等の利点を有している。
【図面の簡単な説明】
【図1】本発明の第1の実施の形態を示す図
【図2】本発明の第2の実施の形態を示す図
【図3】従来のアウターローターモーターの構成を示す図
【符号の説明】
15 パイプ
16 コアー固定部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an outer rotor motor.
[0002]
[Prior art]
A conventional outer rotor motor is as shown in FIG. In this figure, 1 is a core fixed to a bush 2 manufactured by laminating a plurality of punched silicon steels and cutting brass or the like, and one end of the bush 2 is fixed to a mounting plate 3 by caulking or the like. The bearings 4 and 5 are press-fitted into the bush 2, and the bearings 4 and 5 are attached to both ends of the center of the bush 2.
[0003]
The core 1 has a configuration in which insulators 6 and 7 are covered from both ends, and a copper wire 8 is wound therebetween. A terminal 9 is electrically connected at the beginning and end of winding of the copper wire 8 and is fixed to a control circuit (not shown) through the substrate 10 to constitute a stator.
[0004]
The rotor is composed of a cup-shaped case 12 in which a magnet 11 is fixed inside and a collar 13 having an output shaft 14 press-fitted in the center is fixed by caulking or the like. It is rotatably supported.
[0005]
As a result, an outer rotor motor is formed.
[0006]
Such an outer rotor motor has a hall element (not shown) arranged at a position facing the magnet 11, and detects the position of the magnet by the hall element or a waveform appearing in the coil. For example, the current flowing in each coil is controlled so as to rotate in one direction.
[0007]
[Problems to be solved by the invention]
The conventional outer rotor motor having such a configuration is expensive because the bush 2 between the core 1 and the mounting plate 3 used is manufactured by cutting, and the motor becomes expensive.
[0008]
An object of the present invention is to provide an outer rotor motor that is easy to manufacture, easy to assemble, and low in cost.
[0009]
[Means for Solving the Problems]
The motor of the present invention is an outer rotor motor in which a wound core is fixed to a mounting plate, and a rotor having a magnet is arranged outside the core. A pipe mounting hole is formed in the mounting plate, and the mounting hole is pressed. The pipe formed by the above method is press-fitted and fixed, and the core is fixed to the pipe.
[0010]
The outer rotor motor of the present invention is characterized in that a core fixing portion is formed by narrowing a central portion of the mounting plate into a cylindrical shape, and the core is attached to the core fixing portion.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described.
[0012]
FIG. 1 shows a first embodiment of the present invention, wherein 1 is a core, 3 is a mounting plate, 4 and 5 are bearings, 6 and 7 are insulators, 8 is a copper wire, 9 is a terminal, and 10 is a substrate. , 11 is a magnet, 12 is a case, 13 is a collar, and 14 is an output shaft, which have substantially the same configuration as the conventional motor shown in FIG.
[0013]
In the outer rotor motor of the first embodiment, instead of the bush 2, as shown in FIG. 1B, a pipe 15 is formed by pressing the plate into a cylindrical shape by pressing, and this pipe 15 is attached to the mounting plate 3 It is characterized in that it is press-fitted into the throttle hole (mounting hole) formed in the above.
[0014]
As described above, in the first embodiment, the use of a pipe as shown in FIG. 1B simplifies the production and reduces the cost.
[0015]
Moreover, the attachment of the pipe 15 to the attachment plate 3 is very simple because it is simply press-fitted, and the adjustment is also simple.
[0016]
FIG. 2 is a view showing an outer rotor motor according to a second embodiment of the present invention.
[0017]
As in the first embodiment, the second embodiment has substantially the same configuration as the conventional outer rotor motor shown in FIG. 3 except for the mounting plate 3 and the bush portion 2.
[0018]
The second embodiment is characterized in that the core fixing portion 16a is integrally formed by drawing the mounting plate 16 as shown in FIG.
[0019]
This makes it easier to form the core fixing portion and reduces the number of parts.
[0020]
【The invention's effect】
The outer rotor motor of the present invention has an advantage that it can be manufactured at low cost without using an expensive bush, and by simplifying manufacturing and assembling of parts.
[Brief description of the drawings]
FIG. 1 is a diagram showing a first embodiment of the present invention. FIG. 2 is a diagram showing a second embodiment of the present invention. FIG. 3 is a diagram showing a configuration of a conventional outer rotor motor. ]
15 Pipe 16 Core fixing part

Claims (1)

巻線したコアーを取付板に固定し前記コアーの外側にマグネットを有する回転子が配置されているモーターで、取付板にパイプ取付孔を形成し、この取付孔にプレス加工により形成したパイプを圧入し、このパイプにコアーを固定するようにしたことを特徴とするアウターローターモーター。A motor in which a wound core is fixed to a mounting plate and a rotor having a magnet is arranged outside the core. The outer rotor motor is characterized in that the core is fixed to the pipe.
JP30369799A 1999-10-26 1999-10-26 Outer rotor motor Expired - Lifetime JP3613756B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30369799A JP3613756B2 (en) 1999-10-26 1999-10-26 Outer rotor motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30369799A JP3613756B2 (en) 1999-10-26 1999-10-26 Outer rotor motor

Publications (2)

Publication Number Publication Date
JP2001128421A JP2001128421A (en) 2001-05-11
JP3613756B2 true JP3613756B2 (en) 2005-01-26

Family

ID=17924165

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30369799A Expired - Lifetime JP3613756B2 (en) 1999-10-26 1999-10-26 Outer rotor motor

Country Status (1)

Country Link
JP (1) JP3613756B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4946625B2 (en) 2007-05-21 2012-06-06 日本電産株式会社 motor
JP5493339B2 (en) * 2008-11-21 2014-05-14 日本電産株式会社 Motor, fan, motor manufacturing method, and fan manufacturing method

Also Published As

Publication number Publication date
JP2001128421A (en) 2001-05-11

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