JPS637149A - Axial fan motor - Google Patents
Axial fan motorInfo
- Publication number
- JPS637149A JPS637149A JP14912686A JP14912686A JPS637149A JP S637149 A JPS637149 A JP S637149A JP 14912686 A JP14912686 A JP 14912686A JP 14912686 A JP14912686 A JP 14912686A JP S637149 A JPS637149 A JP S637149A
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- shaft
- rotor
- center
- permanent magnet
- 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
- 230000005484 gravity Effects 0.000 claims description 12
- 238000004804 winding Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract description 8
- 229910052751 metal Inorganic materials 0.000 abstract description 8
- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- 239000000758 substrate Substances 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は軸流ファン電動機に係り、特に軸受の構造に
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an axial fan motor, and particularly to the structure of a bearing.
従来の軸流フチ／モータは軸承に複数の軸受全使用して
いるので、組立てに手間がかかり、上下軸受の同軸度等
の格別の注意全型し、また部品点数も増加して高価なも
のとなっていた。Conventional axial flow edge/motors use multiple bearings for the shaft bearings, so assembly is time-consuming, special care must be taken to ensure coaxiality of the upper and lower bearings, and the number of parts increases, making them expensive. It became.
この発明は新規な軸承構造により上記欠点全克服し、安
価で自動組立に適する他流ファンモータの提供全目的と
する。The object of the present invention is to overcome all of the above-mentioned drawbacks by means of a novel bearing structure, and to provide a non-current fan motor that is inexpensive and suitable for automatic assembly.
以下、図面に従ってこの発明の詳細な説明する。第１図
はこの発明の実施例の断面図で、制御回路基板１全合成
樹脂制製の保止部材２ａを介して装着した金属筒体２と
、この金属筒体２に駆動巻線３に巻装した固定子鉄芯４
全嵌着し、これら？樹脂製の枠体５と一体に形成した！
軸承部５１に挿入する。この軸承部５１ヒ上部が浅数個
の突条に分かれ外方に拡開できるようになっている。こ
のとき前記固定子鉄芯４は前記金属筒体２に設けた段部
２１で位置決めされるようにする。つき゛に、くさび形
の押上体６全前記枠体５の軸承部５１の内側に挿入する
。この押止体６により軸承部５１は外方に拡がるのでｍ
Ｉ記金金属筒体２全固定きる。つづいて前記軸承部５１
の底部に設けた弾性支承ｇｌｓ５２に鋼球７？回動自在
に設置する。このときグリ°−スを前記軸承部５１の底
部に少量つけておくとよい。それから軸受８に前記金属
筒体２の上部から嵌入し前記軸承部５１の突条先端に位
置決めされるようにする。この軸受８の位置は後述する
回転子９の軸１２の略重心位置にくるように設定する。The present invention will be described in detail below with reference to the drawings. FIG. 1 is a sectional view of an embodiment of the present invention, in which a control circuit board 1 is attached to a metal cylinder 2 via a retaining member 2a made entirely of synthetic resin, and a drive winding 3 is connected to the metal cylinder 2. Wrapped stator core 4
Fully fitted, these? Integrated with resin frame 5!
Insert into the shaft bearing part 51. The upper part of this shaft bearing part 51 is divided into several shallow protrusions so that it can expand outward. At this time, the stator iron core 4 is positioned by a stepped portion 21 provided on the metal cylinder body 2. At this time, the entire wedge-shaped push-up body 6 is inserted inside the shaft bearing portion 51 of the frame body 5. This holding body 6 causes the shaft bearing part 51 to expand outward, so m
I The metal cylindrical body 2 can be completely fixed. Next, the shaft bearing part 51
Steel ball 7 is attached to the elastic bearing GLS52 provided at the bottom of the Install it so that it can rotate freely. At this time, it is advisable to apply a small amount of grease to the bottom of the shaft bearing portion 51. Then, it is fitted into the bearing 8 from the upper part of the metal cylindrical body 2 so that it is positioned at the tip of the protrusion of the shaft bearing part 51. The position of this bearing 8 is set so that it is approximately at the center of gravity of the shaft 12 of the rotor 9, which will be described later.
次に前記金属筒体２の先端部全かしめて前記固定子鉄芯
４及び前記軸受８全固定する。Next, the tip of the metal cylindrical body 2 is fully caulked to completely fix the stator iron core 4 and the bearing 8.
９は回転子で羽根＋０’ｌ外周に装着し、内側には永久
磁石１１全設け、中央に軸１２全嵌着させである。この
回転子９の軸１２全前記軸承部５１の軸受８に挿入し、
さらに前記軸１２の先端（軸端１２ａ）が前記鋼球７に
当接するまで押し入れる。このとき軸の先端は鋼球にぶ
れなく嵌合するように凹所が設けられている。なお、前
記軸１２に抜は止め？つけておくとよい。Reference numeral 9 denotes a rotor, which is attached to the outer periphery of the blade +0'l, with permanent magnets 11 fully installed inside, and a shaft 12 fully fitted in the center. The entire shaft 12 of this rotor 9 is inserted into the bearing 8 of the bearing portion 51,
The shaft 12 is further pushed in until the tip (shaft end 12a) comes into contact with the steel ball 7. At this time, the tip of the shaft is provided with a recess so as to fit into the steel ball without any wobbling. In addition, is there a stopper on the shaft 12? It's good to keep it on.
なお、上記実施例では軸端１２ａ全支承するのに鋼球音
用いたが、軸端１２ａ′に球状にして第２図に示すよう
にフッ素系樹脂のように潤滑性のある樹脂で直接支承し
てもよい。In the above embodiment, a steel ball was used to fully support the shaft end 12a, but the shaft end 12a' was made into a spherical shape and was directly supported with a lubricating resin such as fluororesin as shown in FIG. You may.
ここで前記回転子９の重心位置の算出について説明する
。Here, calculation of the center of gravity position of the rotor 9 will be explained.
第３図は回転子の重心を求める概念図で、Ｍｌは羽根の
重量、Ｍ２は回転子本体の重量、Ｍ３は磁石の重量、Ｍ
４は軸の重量、Ｍは回転子全体の重量、ＬｌはＸＹ軸と
羽根の重心Ｇ１迄の距離、Ｌ２はＸＹ軸と回転子本体の
重心Ｇ２迄の距離、Ｌ３はＸＹ軸と磁石の重心Ｇ３迄の
距離、Ｌ４はＸＹ軸と軸の重心Ｇ４迄の距離、ＬはＸＹ
軸と回転子全体の重心Ｇ迄の距離２表わしている。いま
それぞれのモーメント全Ｍ＋Ｌ１、Ｍ２Ｌ２、Ｍ３Ｌ３
、Ｍ４ Ｌ４としたとき、ＸＹ軸を全中心して釣り合い
全とると、これらと回転子全体のモーメン）ＭＬとの間
に次式が成り立つ。Figure 3 is a conceptual diagram for determining the center of gravity of the rotor, where Ml is the weight of the blade, M2 is the weight of the rotor body, M3 is the weight of the magnet, and M
4 is the weight of the shaft, M is the weight of the entire rotor, Ll is the distance between the XY axis and the center of gravity G1 of the blade, L2 is the distance between the XY axis and the center of gravity G2 of the rotor body, L3 is the XY axis and the center of gravity of the magnet The distance to G3, L4 is the distance between the XY axis and the center of gravity of the axis G4, L is the XY
It represents the distance 2 between the shaft and the center of gravity G of the entire rotor. Now each moment total M+L1, M2L2, M3L3
, M4 L4, and if all balances are taken with the XY axes as the center, the following equation holds between these and the moment ()ML of the entire rotor.
ＭＬ−＝Ｍ＋ Ｌ ＋ ＋Ｍ２ Ｌ２＋Ｍ３ Ｌ３＋Ｍ
４ Ｌ４−−−−−（＋）これから
Ｌ＝（ＭＩ Ｌ＋＋Ｍ２Ｌ２＋Ｍ３Ｌ３＋Ｍ４Ｌ４ ）
７Ｍ−−−（２）また、Ｍ＝Ｍ Ｉ ＋Ｍ２＋Ｍ３＋Ｍ
４だからＬ＝ （ＭＩＬｌ十Ｍ２Ｌ２＋Ｍ３Ｌ３十Ｍ４
Ｌ４）／（Ｍ１＋Ｍ２＋Ｍ３＋Ｍ４）したがって回転子
全体の重心Ｇの位置ＡはＬ−Ｂとなる。ML-=M+ L + +M2 L2+M3 L3+M
4 L4−−−−−(+) From now on L=(MI L++M2L2+M3L3+M4L4)
7M---(2) Also, M=M I +M2+M3+M
4, so L= (MIL10M2L2+M3L30M4
L4)/(M1+M2+M3+M4) Therefore, the position A of the center of gravity G of the entire rotor is LB.
上記のように回転子の略重心Ｇ位置に軸受８に配するこ
とにより単一の前記軸受８のみでも前記回転子９は安定
回転することになり、かつ振動及び騒音の発生も特に生
じないのである。By arranging the bearing 8 at approximately the center of gravity G of the rotor as described above, the rotor 9 can rotate stably even with only a single bearing 8, and vibration and noise are not particularly generated. be.
この発明は上記のように構成したので、−方向から組立
できることになり、自動組立に適し、しかも軸受が一つ
でよいので安価な軸流ファンモータ全提供することがで
きる。Since the present invention is configured as described above, it can be assembled from the - direction, making it suitable for automatic assembly.Moreover, since only one bearing is required, an inexpensive axial flow fan motor can be provided.
第１図はこの発明の実施例を示す断面図、第２図は他の
実施例の要部断面図、第３図は重心の位置全算出する概
念図である。１は制御回路基板、２は金属筒体、２１は
段部、３は駆動巻線、４は固定子鉄心、５は枠体、５１
は軸承部、５２け弾性支承部、６は押止体、７は鋼球、
８は軸受、９は永久磁石回転子、１ｏは羽根、１１は永
久磁石、１２は軸である。
（特許出願人 株式会社ニス、エム、シー第１図
第 ２ 図
第３ 図FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a sectional view of a main part of another embodiment, and FIG. 3 is a conceptual diagram for calculating the entire position of the center of gravity. 1 is a control circuit board, 2 is a metal cylindrical body, 21 is a stepped portion, 3 is a drive winding, 4 is a stator core, 5 is a frame body, 51
52 is a bearing part, 52 is an elastic bearing part, 6 is a holding body, 7 is a steel ball,
8 is a bearing, 9 is a permanent magnet rotor, 1o is a blade, 11 is a permanent magnet, and 12 is a shaft. (Patent applicant Niss, M, C Co., Ltd. Figure 1 Figure 2 Figure 3
Claims (1)
転子と、前記回転子の位置検出手段を有する制御回路基
板と、駆動巻線を巻装した固定子鉄心と、前記永久磁石
回転子を支承する軸受とを具備してなる軸流ファンモー
タにおいて、軸受を前記永久磁石回転子の略重心位置に
配すると共に、軸端を軸承部底部で支承したことを特徴
とする軸流ファンモータ。A permanent magnet rotor having a shaft in the center and blades on the outer periphery, a control circuit board having a position detection means for the rotor, a stator core around which a drive winding is wound, and the permanent magnet rotor. An axial fan motor comprising: a bearing that supports the permanent magnet rotor; the bearing is disposed approximately at the center of gravity of the permanent magnet rotor; and the shaft end is supported at the bottom of the shaft bearing part. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14912686A JPS637149A (en) | 1986-06-25 | 1986-06-25 | Axial fan motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14912686A JPS637149A (en) | 1986-06-25 | 1986-06-25 | Axial fan motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS637149A true JPS637149A (en) | 1988-01-13 |
Family
ID=15468295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14912686A Pending JPS637149A (en) | 1986-06-25 | 1986-06-25 | Axial fan motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS637149A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05199729A (en) * | 1991-09-20 | 1993-08-06 | Seiko Epson Corp | Bearing structure of stepping motor |
| US6692152B2 (en) | 2000-11-17 | 2004-02-17 | Nidec Copal Corporation | Supporting structure for motor rotor |
| US20190207464A1 (en) * | 2017-12-28 | 2019-07-04 | Koito Manufacturing Co., Ltd. | Motor and lamp using the same |
-
1986
- 1986-06-25 JP JP14912686A patent/JPS637149A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05199729A (en) * | 1991-09-20 | 1993-08-06 | Seiko Epson Corp | Bearing structure of stepping motor |
| US6692152B2 (en) | 2000-11-17 | 2004-02-17 | Nidec Copal Corporation | Supporting structure for motor rotor |
| US20190207464A1 (en) * | 2017-12-28 | 2019-07-04 | Koito Manufacturing Co., Ltd. | Motor and lamp using the same |
| US11011953B2 (en) * | 2017-12-28 | 2021-05-18 | Koito Manufacturing Co., Ltd. | Motor and lamp using the same |
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