JPH04168942A - Motor - Google Patents
MotorInfo
- Publication number
- JPH04168942A JPH04168942A JP29655790A JP29655790A JPH04168942A JP H04168942 A JPH04168942 A JP H04168942A JP 29655790 A JP29655790 A JP 29655790A JP 29655790 A JP29655790 A JP 29655790A JP H04168942 A JPH04168942 A JP H04168942A
- Authority
- JP
- Japan
- Prior art keywords
- vibration isolating
- stator
- fixed
- vibration
- fixed 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.)
- Granted
Links
- 125000006850 spacer group Chemical group 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 abstract description 58
- 239000005060 rubber Substances 0.000 abstract description 58
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 229910052779 Neodymium Inorganic materials 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Motor Or Generator Frames (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、例えば空気調和機の室内機に内装されるク
ロスフローファン等を駆動するための電動機に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an electric motor for driving a cross-flow fan or the like installed in, for example, an indoor unit of an air conditioner.
（従来の技術）
近年、空気調和機の室内機においては、内装するクロス
フローファンを駆動するための電動機として、直流ブラ
シレスモータ形式の電動機を採用することにより、装置
の小形化を図る試みがなされている．その具体例が例え
ば特開昭６４−４１６９６号公報に記載されており、そ
の装置においては、略カップ状の回転子のケーシング内
に周状に永久磁石を配設すると共に、上記ケーシングを
ファンロータの一方の側仮に防振ゴムを介して連結して
いる．一方、軸心に直交する垂直面を有するエンドブラ
ケットを設け、このエンドブラケットを室内機のフレー
ムに固定すると共に、このエンドブラケットに一端が固
定された固定軸の中途部に、複数の突極が径方向外方に
放射状に延びる構造の固定子を固着し、さらにこの固定
軸の先端側で上記回転子を回転自在に支持すると共に、
回転子側の永久磁石が上記固定子の外周を囲う位置に位
置する構成となされている。(Prior Art) In recent years, attempts have been made to downsize indoor units of air conditioners by adopting DC brushless motor type motors as motors for driving internal cross-flow fans. ing. A specific example of this is described in, for example, Japanese Patent Laid-Open No. 64-41696, in which permanent magnets are disposed circumferentially within the casing of a substantially cup-shaped rotor, and the casing is attached to a fan rotor. One side is temporarily connected via anti-vibration rubber. On the other hand, an end bracket having a vertical surface perpendicular to the axis is provided, and this end bracket is fixed to the frame of the indoor unit, and a plurality of salient poles are installed in the middle of the fixed shaft, one end of which is fixed to the end bracket. A stator having a structure extending radially outward in the radial direction is fixed, and the rotor is rotatably supported on the distal end side of the fixed shaft,
The permanent magnets on the rotor side are positioned to surround the outer periphery of the stator.
ところで上記構成の電動機での回転駆動時には、永久磁
石における周方向に隣合う異極の境界点と、固定子の突
極との相対位置の変化に応じて、永久磁石と固定子との
間の吸引力が増減する。この変動する力によって、回転
子にコギングによる回転むらが生じると同時に、固定子
に振動を生じ、この振動が固定軸を介して室内機のフレ
ームに伝播することとなって、装置全体の振動や騒音が
発生するという問題がある。By the way, during rotational driving with the electric motor configured as described above, the distance between the permanent magnet and the stator changes depending on the change in the relative position between the boundary points of different poles adjacent to each other in the circumferential direction of the permanent magnet and the salient poles of the stator. The suction power increases or decreases. This fluctuating force causes uneven rotation in the rotor due to cogging, and at the same time causes vibration in the stator, which propagates to the frame of the indoor unit via the fixed shaft, causing vibrations and vibrations in the entire device. There is a problem that noise is generated.
そこで本出願人は、先の出願（特願平１−２１１９３１
号）において、固定軸と固定子との間に防振ゴムを介装
した電動機を提案し、これにより装置振動や騒音の発生
の低減を図っている。Therefore, the present applicant filed an earlier application (Patent Application No. 1-211931).
No. 1) proposed an electric motor with anti-vibration rubber interposed between the fixed shaft and stator, thereby reducing equipment vibration and noise.
（発明が解決しようとする課題）
しかしながら固定軸と固定子との間に防振ゴムを介装す
る従来の構造では、防振ゴムが変形し易いものであるた
めに、固定軸に対する防振ゴムの取付は作業や、防振ゴ
ムに対する固定子の取付は作業が容易には行い難く、そ
のため組立作業に多くの手数を要するという問題がある
。特に、上記組立作業に際しては、ホール素子等に対す
る固定子の相対位置を正確に設定する必要がある訳であ
るが、防振ゴムの変形に起因して、上記固定子の位置設
定作業に多くの手数を要することになっている。(Problem to be Solved by the Invention) However, in the conventional structure in which vibration isolating rubber is interposed between the fixed shaft and the stator, the vibration isolating rubber is easily deformed. It is difficult to attach the stator to the anti-vibration rubber and it is difficult to attach the stator to the anti-vibration rubber, so there is a problem in that the assembly process requires a lot of effort. In particular, during the above-mentioned assembly work, it is necessary to accurately set the relative position of the stator with respect to the Hall element, etc., but due to the deformation of the vibration-proof rubber, it takes a lot of time to set the stator position. It is going to take a lot of effort.
この発明は上記従来の欠点を解決するためになされたも
のであって、その目的は、騒音や振動を抑制しながらも
、その組立性の改善された電動機を提供することにある
。The present invention has been made to solve the above-mentioned conventional drawbacks, and its purpose is to provide an electric motor that is easier to assemble while suppressing noise and vibration.
（課題を解決するための手段）
そこで第１請求項記載の電動機は、固定子５を支持する
固定軸４の外周部に軸方向に延びる係合突条４ｌを形成
する一方、上記固定軸４よりも軟質材料製の固定管５６
の外周部に防振部材５３を介して固定子５を装着し、上
記固定管５６を上記固定軸４の外周部に圧入することに
よってその内周部を上記係合突条４１で変形させ、これ
により固定管５６を固定軸４に装着することを特徴とし
ている。(Means for Solving the Problem) Therefore, in the electric motor according to the first claim, an engaging protrusion 4l extending in the axial direction is formed on the outer circumference of the fixed shaft 4 supporting the stator 5, and the fixed shaft 4 Fixed tube 56 made of softer material than
The stator 5 is attached to the outer circumference of the fixed shaft 4 via the vibration isolating member 53, and the fixed tube 56 is press-fitted to the outer circumference of the fixed shaft 4, thereby deforming the inner circumference thereof by the engaging protrusion 41, This is characterized in that the fixed tube 56 is attached to the fixed shaft 4.
また第２請求項記載の電動機は、上記固定軸４の基部側
に間座４５を配置する一方、上記固定管５６の反圧大端
側にフランジ５８を周設し、上記間座４５とフランジ５
８とで上記防振部材５３をその両側から挟持すべく構成
したことを特徴としている。Further, in the electric motor according to the second aspect, a spacer 45 is arranged on the base side of the fixed shaft 4, and a flange 58 is provided around the opposite pressure large end side of the fixed pipe 56, so that the spacer 45 and the flange 5
8 is characterized in that the vibration isolating member 53 is configured to be held between both sides thereof.
さらに第３請求項記載の電動機は、上記固定管５６、防
振部材５３、固定子５のそれぞれの間が、軸方向に延び
る凹凸部の嵌合構造によって径方向トルクを伝達可能に
連結されており、上記固定管５６と防振部材５３との連
結部５５、５７と、上記防振部材５３と固定子５との連
結部２２、２３とが、相互に位相を持たせて配置されて
いることを特徴としている。Furthermore, in the electric motor according to a third aspect of the present invention, the fixed tube 56, the vibration isolating member 53, and the stator 5 are connected to each other by a fitting structure of concave and convex portions extending in the axial direction so as to be able to transmit radial torque. The connecting portions 55 and 57 between the fixed pipe 56 and the vibration isolating member 53 and the connecting portions 22 and 23 between the vibration isolating member 53 and the stator 5 are arranged in phase with each other. It is characterized by
またさらに第４請求項記載の電動機は、上記固電管５６
と防振部材５３との連結部５５．５７が１個所だけ設け
られ、また上記防振部材５３と固定子５との連結部２２
．２３が、上記連結部５５．５７とは周方向反対側の位
置に１個所だけ設けられていることを特徴としている。Furthermore, the electric motor according to the fourth aspect is characterized in that the solid electric tube 56
Only one connecting portion 55, 57 between the vibration isolating member 53 and the stator 5 is provided, and the connecting portion 22 between the vibration isolating member 53 and the stator 5 is provided.
．． 23 is provided at only one location on the opposite side in the circumferential direction from the connecting portions 55 and 57.
ノー
第５請求項記載の電動機は、上記固定管５６は、上記固
定軸４の基端側に位置部分５６ａと、それよりも先端側
に位置する部分５６ｂとに分割構成され、各分割された
固定管５６ａ 、５６ｂは、防振部材５３の両端面側で
のみ防振部材５３に連結されていることを特徴としてい
る。In the electric motor according to claim 5, the fixed tube 56 is divided into a portion 56a located on the proximal end side of the fixed shaft 4 and a portion 56b located on the distal side thereof, and each divided portion The fixed tubes 56a and 56b are characterized in that they are connected to the vibration isolating member 53 only at both end surfaces of the vibration isolating member 53.
第６請求項記載の電動機は、上記防振部材５３には、吸
振性能向上のために軸方向に延びる透孔５９が開設され
ていることを特徴としている。The electric motor according to the sixth aspect is characterized in that the vibration isolating member 53 is provided with a through hole 59 extending in the axial direction in order to improve vibration absorption performance.
（作用）
上記第１請求項記載の電動機では、防振部材５３を介し
て固定子５を装着した固定管５６を、固定軸４に圧入す
るだけで組立作業が行える。そしてこの圧入の際に、固
定子５の相対回転位置を定めておけばよい訳で、この相
対位置が従来のように防振部材５３０弾性変位によって
変位してしまうことはない。(Function) In the electric motor according to the first aspect, assembly work can be performed simply by press-fitting the fixed tube 56 to which the stator 5 is mounted via the vibration isolating member 53 onto the fixed shaft 4. At the time of this press-fitting, it is sufficient to determine the relative rotational position of the stator 5, and this relative position will not be displaced due to the elastic displacement of the vibration isolating member 530 as in the conventional case.
また第２請求項記載の電動機では、防振部材５３の回転
方向変位は許容しつつも、軸方向支持力を増大して軸方
向変位を規制し得ることから、防振、防音効果を向上し
得る。Further, in the electric motor according to the second claim, while allowing the rotational displacement of the vibration isolating member 53, the axial supporting force can be increased to restrict the axial displacement, thereby improving the vibration and soundproofing effects. obtain.
さらに第３請求項記載の電動機では、防振部材５３の固
定管５６例の連結部５５と、固定子５側の連結部２２と
の間の距離、つまりトルク伝達経路が長くなり、防振、
防音効果を向上し得る。Further, in the electric motor according to the third aspect, the distance between the connecting portion 55 of the fixed pipe 56 of the vibration isolating member 53 and the connecting portion 22 on the stator 5 side, that is, the torque transmission path is increased,
It can improve the soundproofing effect.
またさらに第４請求項記載の電動機では、上記トルク伝
達経路を第３請求項の場合よりもさらに長く取れること
になる。Furthermore, in the electric motor according to the fourth aspect, the torque transmission path can be made longer than in the third aspect.
第５請求項記載の電動機では、固定軸４に圧入される固
定管５６ａ 、５６ｂが、防振部材５３の軸方向厚さよ
りも短寸でよいことになり、この結果、防振部材５３に
おいては、固定管５６ａ 、５６ｂの配置されていない
部分で、その分だけ径方向内方へと厚肉化し得ることに
なり、防振、防音効果が向上する。In the electric motor according to the fifth aspect, the fixed tubes 56a and 56b that are press-fitted into the fixed shaft 4 may be shorter than the axial thickness of the vibration isolating member 53, and as a result, in the vibration isolating member 53, , the portions where the fixed tubes 56a, 56b are not arranged can be made thicker radially inward by that amount, improving vibration-proofing and sound-proofing effects.
またさらに第６請求項記載の電動機では、防振部材５３
の軸方向への変形能をほとんど変化させず、径方向への
変形能を向上し得ることから、特にコギング振動等の抑
制に効果的である。Furthermore, in the electric motor according to the sixth aspect, the vibration isolating member 53
Since the deformability in the radial direction can be improved while hardly changing the deformability in the axial direction, it is particularly effective in suppressing cogging vibrations and the like.
（実施例）
次にこの発明の電動機の具体的な実施例について、図面
を参照しつつ詳細に説明する。(Embodiments) Next, specific embodiments of the electric motor of the present invention will be described in detail with reference to the drawings.
第１図は空気調和機の室内機におけるファン装置、詳し
くはクロスフローファンのファンロータ１の一方の側板
（以下、右側板という）２側の構成を示している。FIG. 1 shows the configuration of a fan device in an indoor unit of an air conditioner, specifically, one side plate (hereinafter referred to as the right side plate) 2 of a fan rotor 1 of a cross flow fan.
３はエンドブラケットで、面板部３１と、その面板部３
１の外周縁から前方に延びた筒状部３２とが板金加工で
作られている。3 is an end bracket, which includes a face plate portion 31 and its face plate portion 3.
A cylindrical portion 32 extending forward from the outer periphery of 1 is made by sheet metal processing.
４は固定軸で、この固定軸４は、第２図に示すように、
軸方向に延びる複数の係合突条４１がローレット加工等
によって形成された係合部４２と、係合部４２からさら
に先端側に延びる支持部４３と、係合部４２の基部に形
成された鍔部４４とを有している。そして鍔部４４から
図中右側への突出部分４６が上記面板部３１の中心孔内
に嵌入されると共に、上記鍔部４４がスポット溶接等に
よって面板部３１に固着されている。4 is a fixed shaft, and this fixed shaft 4, as shown in FIG.
A plurality of engagement protrusions 41 extending in the axial direction are formed on an engagement portion 42 formed by knurling or the like, a support portion 43 extending further toward the distal end side from the engagement portion 42, and a base portion of the engagement portion 42. It has a collar part 44. A projecting portion 46 extending from the flange 44 to the right in the figure is fitted into the center hole of the face plate 31, and the flange 44 is fixed to the face plate 31 by spot welding or the like.
５は固定子であるが、この固定子５は、粉体塗装等で電
気的に絶縁された鉄心５１に、巻線５２を装着したもの
である。そしてこの固定子５は、固定管５６に防振ゴム
（防振部材）５３を介して取着され、この固定管５６が
上記固定軸５の係合部４２に装着されている。5 is a stator, and this stator 5 has a winding 52 attached to an iron core 51 which is electrically insulated by powder coating or the like. The stator 5 is attached to a fixed tube 56 via a vibration isolating rubber (vibration isolating member) 53, and the fixed tube 56 is attached to the engaging portion 42 of the fixed shaft 5.
上記固定管５６を第３図、第３Ａ図及び第３Ｂ図に示す
が、この固定管５６は、上記固定軸４よりも軟質な材料
、例えばアルミニウム合金等によって形成されたもので
あって、その一端部に径方向外方に延びるフランジ部５
８を有する筒状のものである。そして上記筒状部の外周
には、軸方向に延びるキ一部５７が一体的に形成されて
いる。The fixed tube 56 is shown in FIGS. 3, 3A, and 3B, and is made of a softer material than the fixed shaft 4, such as an aluminum alloy. A flange portion 5 extending radially outward at one end
It has a cylindrical shape with a diameter of 8. A portion 57 extending in the axial direction is integrally formed on the outer periphery of the cylindrical portion.
また上記防振ゴム５３は、第４図及び第４Ａ図に示すよ
うに、概略環状のもので、その一端側にはフランジ部２
１が設けられると共に、中心孔５４には軸方向に延びる
キー溝５５が形成され、さらにその外周部には軸方向に
延びるキ一部２２が一体成形されている。Further, as shown in FIGS. 4 and 4A, the vibration isolating rubber 53 has a generally annular shape, and one end thereof has a flange portion 2.
1, a key groove 55 extending in the axial direction is formed in the center hole 54, and a key part 22 extending in the axial direction is integrally formed on the outer peripheral portion of the key groove 55.
上記固定子５の固定軸４への取付手順は次の通りである
。まず固定管５６の外周部に防振ゴム５３を取付ける。The procedure for attaching the stator 5 to the fixed shaft 4 is as follows. First, the vibration isolating rubber 53 is attached to the outer periphery of the fixed tube 56.
この際、防振ゴム５３の中心孔５４内に固定管５６を挿
入すると共に、防振ゴム５３のキー溝５５内に、固定管
５６のキ一部５７を挿入する。次いで防振ゴム５３の外
周部に固定子５を取付ける。この際、固定子５に設けた
キー溝２３内に上記防振ゴム５３のキ一部２２を挿入す
る。そしてさらに上記固定管５６の先端部に、第５図、
第５Ａ図に示すような固定子防振ゴム２４を挿入し、こ
の状態で上記固定管５６を固定軸４に圧入する。そうす
ると固定管５６は、その内周面が上記係合突条４１によ
って塑性変形しながら圧入されることとなり、これによ
り固定管５６、防振ゴム５３を介しての固定子５の取付
けが行えることになる。この正大作業は、第１図に示す
ように、固定管５６の先端部がやや変形する程度まで行
うが、この状態では上記防振ゴム５３及び固定子防振ゴ
ム２４は、上記固定軸４の鍔部４４と、固定管５６のフ
ランジ部５８との間で、軸方向に押圧、挟持されること
となり、また固定子５は、防振ゴム５３のフランジ部２
１と固定子防振ゴム２４との間に軸方向支持される。At this time, the fixed tube 56 is inserted into the center hole 54 of the vibration isolating rubber 53, and the key portion 57 of the fixed tube 56 is inserted into the key groove 55 of the vibration isolating rubber 53. Next, the stator 5 is attached to the outer periphery of the vibration isolating rubber 53. At this time, the key portion 22 of the vibration isolating rubber 53 is inserted into the key groove 23 provided in the stator 5. Further, at the tip of the fixed tube 56, as shown in FIG.
A stator vibration isolating rubber 24 as shown in FIG. 5A is inserted, and in this state the fixed tube 56 is press-fitted into the fixed shaft 4. Then, the fixed tube 56 will be press-fitted while its inner circumferential surface is plastically deformed by the engaging protrusion 41, and thus the stator 5 can be attached via the fixed tube 56 and the vibration isolating rubber 53. become. As shown in FIG. 1, this straightening operation is performed to the extent that the tip of the fixed tube 56 is slightly deformed. In this state, the vibration isolating rubber 53 and the stator vibration isolating rubber 24 are The stator 5 is pressed and held in the axial direction between the flange 44 and the flange 58 of the fixed tube 56, and the stator 5 is pressed against the flange 2 of the vibration isolating rubber 53.
1 and the stator vibration isolating rubber 24.
上記固定管５６を固定軸４に圧入するときには、所定の
治具を用いてホール素子Ｈ等との相対位置関係を正確に
設定しておくのが好ましく、そうすることによって運転
効率を向上し得ることになる。When press-fitting the fixed tube 56 into the fixed shaft 4, it is preferable to use a predetermined jig to accurately set the relative positional relationship with the Hall element H etc. By doing so, operational efficiency can be improved. It turns out.
一方、第１図において、６は回転子である。回転子６は
取付板部６１の外周縁に筒状部６２を延設したもので、
取付板部６１の中央に内側に突き出たボス部６３が形成
され、筒状部６２における周方向の複数箇所には、軸心
方向２列に亘って小孔６４．６５が開設されている。上
記ボス部６３には軸受６６が嵌入されており、その軸受
６６が、固定軸４の支持部４３に、上記固定管５６に当
たる状態で嵌め込まれている。そして上記筒状部６２が
、エンドブラケット３の筒状部３２で囲まれた回転子収
容空間に収容されている。On the other hand, in FIG. 1, 6 is a rotor. The rotor 6 has a cylindrical portion 62 extending from the outer peripheral edge of a mounting plate portion 61.
A boss portion 63 is formed in the center of the mounting plate portion 61 and projects inwardly, and small holes 64 and 65 are formed in two rows in the axial direction at multiple locations in the circumferential direction of the cylindrical portion 62. A bearing 66 is fitted into the boss portion 63, and the bearing 66 is fitted into the support portion 43 of the fixed shaft 4 so as to contact the fixed tube 56. The cylindrical portion 62 is housed in a rotor housing space surrounded by the cylindrical portion 32 of the end bracket 3.
回転子６における筒状部６２の内面に、マグネット６７
が設けられているのに対し、筒状部６２の外面にヨーク
６８が重なり合って嵌合されている。ヨーク６８には、
筒状部６２の小孔６４．６５と重なり合った切欠部６９
ａと小孔６９とが形成されている。上記マグネット６７
は、上記切欠部６９ａ及び小孔６９の内部に延びて、そ
の延出部分６７ａ 、６７ｂがヨーク６８の外側に露出
している。A magnet 67 is attached to the inner surface of the cylindrical portion 62 in the rotor 6.
A yoke 68 is fitted onto the outer surface of the cylindrical portion 62 so as to overlap with each other. Yoke 68 has
Notch portion 69 that overlaps small hole 64.65 of cylindrical portion 62
A and a small hole 69 are formed. The above magnet 67
extends inside the notch 69a and the small hole 69, and its extended portions 67a and 67b are exposed to the outside of the yoke 68.
このマグネット６７は延出部分６７ａ 、６７ｂを含め
て圧縮成形されたものであり、しかも圧縮成形を行うと
きに同時に回転子６に組付けられたものである。すなわ
ち、回転子６の筒状部６２にヨーク６８を嵌合してボン
ドマグネット成形型に入れ、磁性材料にバインダを混入
したマグネット材料を成形型に入れて圧縮成形を行い、
加熱して硬化させたものであり、この圧縮成形時にマグ
ネット材料が小孔６４．６５及び切欠部６９ａ、小孔６
９に充填される。This magnet 67, including the extending portions 67a and 67b, is compression molded, and is assembled to the rotor 6 at the same time as the compression molding. That is, the yoke 68 is fitted into the cylindrical portion 62 of the rotor 6 and placed in a bonded magnet mold, and a magnetic material containing a binder is placed in the mold and compression molded.
It is heated and hardened, and during this compression molding, the magnet material forms the small holes 64, 65, the notches 69a, and the small holes 6.
9 is filled.
このようにすると、マグネット６７やその延出部分６７
ａ 、 ６７ｂを形成することによって、それらと筒状
部６２、ヨーク６８、スペーサ６８ａとが相互に固定さ
れるようになり、マグネット６７の製造と、ヨーク６８
などの部品の固定が単一の工程で確実に行われて、工数
の削減とマグネット６７の取付不良によるコギング抑制
とが同時に行われるという利点がある。磁性材料として
ネオジウムやボロンなどの希土類系の物質を用い、バイ
ンダとして粉末エポキシ樹脂を用いると強力なマグネッ
トが得られるため、そうすることによってマグネット６
７の厚みを薄くすることができるようになるので、それ
だけ小型化を達成しやすくなる。In this way, the magnet 67 and its extending portion 67
By forming the magnets 67a and 67b, the cylindrical portion 62, the yoke 68, and the spacer 68a are fixed to each other.
There is an advantage in that parts such as the above are reliably fixed in a single process, and the number of man-hours is reduced and cogging due to poor attachment of the magnet 67 is suppressed at the same time. A strong magnet can be obtained by using rare earth materials such as neodymium or boron as the magnetic material and powdered epoxy resin as the binder.
7 can be made thinner, making it easier to achieve miniaturization.
またバインダに粉末エポキシ樹脂を用いることにより、
従来汎用されている液体バインダを用いる場合に比べて
、硬化温度が少し高くなるだけであるにもかかわらず、
液体バインダと同じ使用量で性能のよいマグネットを製
造することができるので、材料が無駄にならず、作業時
間が大幅に短縮できるという利点がある。In addition, by using powdered epoxy resin as a binder,
Even though the curing temperature is only slightly higher than when using conventional liquid binders,
Since a magnet with good performance can be manufactured using the same amount of liquid binder, there are advantages in that materials are not wasted and working time can be significantly shortened.
回転子６の取付板部６１に、継手ボス７０のフランジ部
７１が、リベット７２で固着されている。A flange portion 71 of a joint boss 70 is fixed to a mounting plate portion 61 of the rotor 6 with a rivet 72.
リヘット７２の代わりにスポット溶接で固着してもよい
。そして継手ボス７０内に、さらに他の軸受７３が配置
されている。なお７４は波ワツシヤ、７５は間座である
。上記継手ボス７０とファンロータ１とは防振ゴムを用
いたフレキシブルジヨイント７６を介して連結されてい
る。Instead of the rehet 72, it may be fixed by spot welding. Further, another bearing 73 is arranged within the joint boss 70. Note that 74 is a wave washer, and 75 is a spacer. The joint boss 70 and the fan rotor 1 are connected via a flexible joint 76 made of anti-vibration rubber.
エンドブラケット３の面板部３１の後面側には、駆動回
路やホール素子Ｈを搭載した基板（駆動回路基板）８が
配備され、その基板８の適所がクリップ８１を用いて上
記面板部３１に取付けられている。A board (drive circuit board) 8 on which a drive circuit and a Hall element H are mounted is provided on the rear side of the face plate part 31 of the end bracket 3, and a suitable position of the board 8 is attached to the face plate part 31 using a clip 81. It is being
上記した電動機においては、固定子５から固定軸４へと
伝播する振動は、この間に介装されている防振ゴム５３
で減衰されるので、装置全体の振動を低減し得る。また
上記実施例においては、固定管５６に防振ゴム５３を介
して固定子５を固定しておき、これを固定軸４に圧入す
るという組立工程を採用していることから、従来のよう
に、組立途中における防振ゴムの変位に起因する固定子
５の周方向位置すれという不具合を解消でき、簡単な作
業で精度の良い組立作業を行うことが可能になる。In the electric motor described above, the vibration propagating from the stator 5 to the fixed shaft 4 is transmitted through the vibration isolating rubber 53 interposed between the stator 5 and the fixed shaft 4.
The vibration of the entire device can be reduced. Furthermore, in the above embodiment, the stator 5 is fixed to the fixed tube 56 via the vibration isolating rubber 53, and this is press-fitted into the fixed shaft 4, which is an assembly process. This eliminates the problem of misalignment of the stator 5 in the circumferential direction due to displacement of the vibration isolating rubber during assembly, and allows for simple and accurate assembly work.
第６図に第２実施例を示す。これは、固定軸４の鍔部４
４と固定子防振ゴム２４との間に、金属製又は合成樹脂
製の間座４５を介設した点を特徴とするものである。こ
の場合、固定子防振ゴム２４は平板状のものを使用し、
また間座４５は、第７図及び第７Ａ図に示す形状のもの
を使用する。なお他の部分の構造は第１実施例と同様で
あるため、同一部分を同一符号で示してその説明を省略
する（この点は、以下の各実施例においても同様である
）。FIG. 6 shows a second embodiment. This is the flange 4 of the fixed shaft 4.
4 and the stator vibration isolating rubber 24, a spacer 45 made of metal or synthetic resin is interposed. In this case, the stator vibration isolating rubber 24 uses a flat plate,
Further, the spacer 45 used has the shape shown in FIGS. 7 and 7A. The structure of other parts is the same as that of the first embodiment, so the same parts are indicated by the same reference numerals and the explanation thereof will be omitted (this point is also the same in each of the following embodiments).
この実施例では、間座４５を使用していることから、防
振ゴム５３と固定子防振ゴム２４との軸方向挟持力を向
上して軸方向変位を防止しながらも、回転方向変位は許
容しているので、防振、防音効果を一段と向上し得る。In this embodiment, since the spacer 45 is used, the axial clamping force between the vibration isolating rubber 53 and the stator vibration isolating rubber 24 is improved and axial displacement is prevented, while rotational displacement is prevented. Since it is allowed, the vibration-proofing and sound-proofing effects can be further improved.
殊に間座４５を、摩擦係数の小さい合成樹脂で形成した
場合には、防振ゴム５３や固定子防振ゴム２４０回転変
位が生じ易くなり、第１実施例よりも吸振性能が向上す
る。In particular, when the spacer 45 is made of a synthetic resin with a small coefficient of friction, rotational displacement of the vibration isolating rubber 53 and the stator vibration isolating rubber 240 is likely to occur, and the vibration absorption performance is improved compared to the first embodiment.
第８図に第３実施例を示す。これは固定子５の鉄心５１
の構成態様、及び固定管５６、防振ゴム５３、固定子５
の連結態様に特徴を有するものであり、以下その点につ
いて説明する。まずこの実施例において使用する鉄心５
Ｉは、第９図及び第９Ａ図に示す形状に打抜かれた平板
状のものを、所定枚数だけ積層して構成される。そして
各平板２５には、第１０図、第１０八図及び第１０Ｂ図
に示すような、平面視矩形の打抜凹陥部２６が形成され
ており、この打抜凹陥部２６を上下方向に嵌合させなが
ら平板２５を積層することによって鉄心５１を構成する
。この場合、第９図に示すように、上記打抜凹陥部２６
の位置と、キー溝２３とが交互に６０°の位相を持たせ
て等間隔に配置されている。これは打抜凹陥部２６やキ
ー溝２３の形成による鉄心５１内での磁路変化を、でき
るだけバランスのとれたものにするための対策であり、
このようにすると磁路バランスの向上による運転効率の
向上という利点が生じる。FIG. 8 shows a third embodiment. This is the iron core 51 of stator 5
, and the fixed tube 56, vibration isolating rubber 53, and stator 5.
It is characterized by its connection mode, and this point will be explained below. First, the iron core 5 used in this example
I is constructed by laminating a predetermined number of flat plates punched into the shapes shown in FIGS. 9 and 9A. Each flat plate 25 is formed with a punched recess 26 that is rectangular in plan view as shown in FIGS. 10, 108, and 10B, and the punched recess 26 is fitted in the vertical direction. The iron core 51 is constructed by stacking the flat plates 25 while matching them together. In this case, as shown in FIG.
The positions and the key grooves 23 are alternately arranged at equal intervals with a phase of 60°. This is a measure to keep the magnetic path changes within the core 51 as balanced as possible due to the formation of the punching recesses 26 and the keyways 23.
This has the advantage of improving operational efficiency due to improved magnetic path balance.
また防振ゴム５３は、第１１図、第１１Ａ図及び第１２
図、第１２Ａ図にそれぞれ示すように軸方向に２つの部
分５３ａ 、５３ｂに分割構成されている。In addition, the vibration isolating rubber 53 is shown in FIGS. 11, 11A, and 12.
As shown in FIGS. 1 and 12A, respectively, it is divided into two parts 53a and 53b in the axial direction.
そして各部分５３ａ 、５３ｂにおいては、キ一部２２
とキー溝５５とが、交互に６０°の位相でもって配置さ
れている。すなわち、固定子５からの振動は、固定子５
からキ一部２２を介して防振ゴム５３ａ、５３ｂに伝達
され、次いで防振ゴム５３ａ 、５３ｂのキー溝５５を
経て固定軸４へと伝達される訳であるが、この振動に対
し、できるだけトルク伝達経路を長くすることによって
防振効果を向上しているのである。And in each part 53a, 53b, the key part 22
and key grooves 55 are alternately arranged with a phase of 60°. In other words, the vibration from the stator 5
This vibration is transmitted to the vibration isolating rubbers 53a and 53b via the key part 22, and then to the fixed shaft 4 via the keyway 55 of the vibration isolating rubbers 53a and 53b. By lengthening the torque transmission path, the vibration damping effect is improved.
ところでマグネット６７を構成する磁性材料としてネオ
ジウムやボロン等の希土類系の材料を採用すれば、装置
全体を小形化し得る利点の生ずるのは前述の通りである
が、このような磁性材料を使用すれば、防振効果を向上
し得るという利点も生じる。つまりそれは、装置外径を
従来と同一にするという観点に立てば、マグネット６７
を薄形化し得る分だけ固定子５の外径を大にし得ること
になり、結果として防振ゴム５３の径大化が図れるため
である。By the way, as mentioned above, if a rare earth material such as neodymium or boron is used as the magnetic material constituting the magnet 67, there is an advantage that the entire device can be made smaller. , there is also the advantage that the vibration damping effect can be improved. In other words, from the perspective of keeping the outside diameter of the device the same as before, the magnet 67
This is because the outer diameter of the stator 5 can be increased by the amount that can be made thinner, and as a result, the diameter of the vibration isolating rubber 53 can be increased.
第１３図に第４実施例を示す。これは、固定管５６、防
振ゴム５３、固定子５の連結態様、及び回転子６とファ
ンロータ１の側板２との連結構造に特徴を有するもので
ある。まずこの場合、前記実施例と同様に、第１４図、
第１４Ａ図及び第１５図、第１５Ａ図に示すように防振
ゴム５３が２つの部分５３ａ 、５３ｂに分割構成され
ている。そして各防振ゴム５３ａ、５３ｂにおいては、
キ一部２２とキー溝５５とが１個所ずつ、１８０°の位
相でもって設けられている。これは固定子５側からのト
ルク伝達経路を前記実施例よりもさらに長くするための
構造である。FIG. 13 shows a fourth embodiment. This is characterized by the manner in which the fixed tube 56, the vibration isolating rubber 53, and the stator 5 are connected, and the connection structure between the rotor 6 and the side plate 2 of the fan rotor 1. First, in this case, as in the previous embodiment, FIG.
As shown in FIGS. 14A, 15, and 15A, the vibration isolating rubber 53 is divided into two parts 53a and 53b. And in each vibration isolating rubber 53a, 53b,
One key portion 22 and one key groove 55 are provided with a phase of 180°. This is a structure in which the torque transmission path from the stator 5 side is made longer than in the previous embodiment.
またこの実施例では、第１３図のように、回転子６に取
付けた継手ボス７０に、軸方向に延びる２つのキー溝２
８を設ける一方、防振ゴム製のフレキシブルジヨイント
７６の中央孔内面に２つの突起３０を設け、この突起３
０を上記キー溝２８内にキー状に嵌入することで両者を
連結し、回転子６０回転をファンロータｌに伝達し得る
ようにしである。この場合、フレキシブルジヨイント７
６の側面と、回転子６の取付板部６１との間が接触しな
いように所定の間隙を設けておくことが重要である。つ
まりコギングによる速度変化は、細心部から径方向外方
へと離れる程、大きくなるため、フレキシブルジヨイン
ト７６の側面と、回転子６の取付板部６１とが接触する
構造であると、フレキシブルジヨイント７６に対して速
度変化の大きくなったコギングが伝達されてしまうこと
になるため、上記のような非接触構造を採用して低振動
、低騒音化を図っているのである。Further, in this embodiment, as shown in FIG. 13, a joint boss 70 attached to the rotor 6 has two key grooves 2 extending in the axial direction.
8, and two protrusions 30 are provided on the inner surface of the central hole of the flexible joint 76 made of anti-vibration rubber.
0 is inserted into the key groove 28 in the shape of a key to connect the two, and 60 rotations of the rotor can be transmitted to the fan rotor l. In this case, flexible joint 7
It is important to provide a predetermined gap so that the side surface of the rotor 6 and the mounting plate portion 61 of the rotor 6 do not come into contact with each other. In other words, the speed change due to cogging becomes larger as the distance from the narrow part increases in the radial direction. Since cogging with a large speed change will be transmitted to the point 76, a non-contact structure as described above is adopted to reduce vibration and noise.
第１６図に第５実施例を示す。これは固定管５６の形状
、及びこの固定管５６と防振ゴム５３との連結構造に特
徴を有するものである。第１７図、第１７Ａ図及び第１
８図、第１８Ａ図に示すように、固定管５６は軸方向に
分割構成されると共に、各分割固定管５６ａ 、５６ｂ
には、軸方向に延びる保合爪片３８が、等間隔、３箇所
に立設されている。FIG. 16 shows a fifth embodiment. This is characterized by the shape of the fixed tube 56 and the connection structure between the fixed tube 56 and the vibration isolating rubber 53. Figure 17, Figure 17A and Figure 1
As shown in FIG. 8 and FIG. 18A, the fixed tube 56 is divided in the axial direction, and each divided fixed tube 56a, 56b
In the holder, retaining claw pieces 38 extending in the axial direction are erected at three locations at equal intervals.
一方、防振ゴム５３は、第１９図、第１９Ａ図、第１９
Ｂ図及び第２０図、第２０八図、第２０Ｂ図に示すよう
に前記実施例同様に２つに分割構成され、各分割体５３
ａ 、５３ｂの側面側に、それぞれ上記保合爪片３８の
嵌入し得る係合溝３９が形成されている。この実施例に
おいては、第１６図からも明らかなように、防振ゴム５
３は、その両側面の近傍でのみ上記分割固定管５６ａ
、５６ｂに支持され、その軸方向中央部では、固定管５
６の存在しない分だけ肉厚に構成可能である。したがっ
て吸振性能を向上し得ることになる。On the other hand, the vibration isolating rubber 53 is shown in FIGS.
As shown in FIG. B, FIG. 20, FIG. 208, and FIG.
Engagement grooves 39 into which the retaining claw pieces 38 can be fitted are formed on the side surfaces of each of the retaining claws 38a and 53b. In this embodiment, as is clear from FIG.
3 is the split fixed tube 56a only near both sides thereof.
, 56b, and the fixed tube 5 is supported at its axially central portion.
It is possible to make the structure thicker by the amount that 6 does not exist. Therefore, vibration absorption performance can be improved.
第２１図、第２１Ａ図、第２２図、第２２Ａ図、第２３
図、第２３Ａ図、第２４図及び第２４Ａ図には、防振ゴ
ム５３の変更例を示す。これは分割された各防振ゴム５
３ａ 、 ５３ｂに、軸方向に延びる複数の透孔５９を
穿設し、これにより吸振性能の向上を図ったものである
。この場合、軸方向の変形能は上記各実施例の場合と路
間等であり、径方向への変形能のみが向上されることか
ら、特にコギング振動等の抑制に効果的である。Figure 21, Figure 21A, Figure 22, Figure 22A, Figure 23
23A, 24, and 24A show examples of modifications of the vibration isolating rubber 53. This is each divided vibration isolating rubber 5
3a and 53b are provided with a plurality of through holes 59 extending in the axial direction, thereby improving vibration absorption performance. In this case, the deformability in the axial direction is the same as in the case of each of the above embodiments, such as between roads, and only the deformability in the radial direction is improved, which is particularly effective in suppressing cogging vibrations and the like.
（発明の効果）
以上のように第１請求項記載の電動機では、防振部材を
介して固定子を装着した固定管を固定軸に圧入するだけ
の簡単な作業で組立作業が行えることになるが、この圧
入の際に、固定子の相対回転位置を定めておけばよく、
この相対位置が従来のように防振部材の弾性変位によっ
て変位してしまうことはないので、組立作業の容易化、
及び組立精度の向上という利点が生じる。(Effects of the Invention) As described above, in the electric motor according to the first claim, the assembly work can be performed by simply press-fitting the fixed tube with the stator attached to the fixed shaft via the vibration isolating member. However, it is only necessary to determine the relative rotational position of the stator during this press-fitting.
Since this relative position will not be displaced due to the elastic displacement of the vibration isolating member as in the past, assembly work is facilitated.
This also brings about the advantage of improved assembly accuracy.
また第２請求項記載の電動機では、防振部材の回転方向
変位は許容しつつも、軸方向支持力を増大して軸方向変
位を規制し得ることから、防振部材による防振、防音効
果を向上し得ることになる。Further, in the electric motor according to the second claim, while allowing the rotational direction displacement of the vibration isolating member, the axial supporting force can be increased to regulate the axial displacement, so that the vibration isolating member and the soundproofing effect are achieved. This will result in improved performance.
さらに第３請求項記載の電動機では、防振部材の固定管
側の連結部と、固定子側の連結部との間の距離、つまり
トルク伝達経路が長（なるようにしであることから、防
振、防音効果をさらに向上し得る。Further, in the electric motor according to the third aspect, since the distance between the fixed tube side connection part of the vibration isolating member and the stator side connection part, that is, the torque transmission path is long, The vibration and soundproofing effects can be further improved.
またさらに第４請求項記載の電動機では、上記トルク伝
達経路を一段と長く取れることになり、−段の低振動化
、低騒音化が可能となる。Furthermore, in the electric motor according to the fourth aspect, the torque transmission path can be made much longer, so that it is possible to reduce vibration and noise in the -stage.
第５請求項記載の電動機では、固定軸に圧入される固定
管が、防振部材の軸方向厚さよりも短寸でよいことにな
り、この結果、防振部材においては、固定管の配置され
ていない部分で、その分だけ径方向内方へと厚肉化し得
ることになり、これによっても防振、防音効果が向上す
る。In the electric motor according to the fifth aspect, the fixed tube press-fitted into the fixed shaft may be shorter than the axial thickness of the vibration isolating member. This means that the thickness can be increased radially inward by that amount in the areas that are not covered, and this also improves the vibration-proofing and sound-proofing effects.
またさらに第６請求項記載の電動機では、防振部材の軸
方向への変形能をほとんど変化させず、径方向への変形
能を向上し得ることから、特にコギング振動等の抑制に
効果的である。Furthermore, the electric motor according to claim 6 is particularly effective in suppressing cogging vibration, etc., since the deformability of the vibration isolating member in the axial direction is hardly changed and the deformability in the radial direction can be improved. be.
第１図はこの発明の電動機の第１実施例の中央縦断面図
、
第２図は上記固定軸の平面図、
第３図は上記固定管の平面図、
第３Ａ図は第３図のＡ−Ａ断面図、
第３Ｂ図は上記固定管の正面図、
第４図は上記防振ゴムの平面図、
第４Ａ図は第４図のＡ−Ａ断面図、
第５図は上記固定子防振ゴムの平面図、第５Ａ図は第５
図のＡ−Ａ断面図、
第６図は電動機の第２実施例の中央縦断面図、第７図は
上記間座の平面図、
第７Ａ図は第７図のｌ−Ａ断面図、
第８図は電動機の第３実施例の中央縦断面図、第９図は
上記固定子鉄心の構成板材の平面図、第９八図は第９図
のＡ−Ａ断面図、
第１０図は上記構成板材における打抜凹陥部の平面図、
第１０Ａ図は第１０図のＡ−Ａ断面図、第１０Ｂ図は第
１０図のＢ−Ｂ断面図、第１１図は上記一方の防振ゴム
の平面図、第１１Ａ図は第１１図のＡ−Ａ断面図、第１
２図は上記他方の防振ゴムの平面図、第１２４図は第１
２図のＡ−Ａ断面図、第１３図は電動機の第４実施例の
中央縦断面図、第１４図は上記一方の防振ゴムの平面図
、第１４Ａ図は第１４図のＡ−Ａ断面図、第１５図は上
記他方の防振ゴムの平面図、第１５Ａ図は第１５図のＡ
−Ａ断面図、第１６図は電動機の第５実施例の中央縦断
面図、第１７図は分割固定管の一方の平面図、第１７Ａ
図は第１７図のＡ−Ａ断面図、第１８図は分割固定管の
他方の平面図、第１８Ａ図は第１８図のＡ−Ａ断面図、
第１９図は上記一方の防振ゴムの平面図、第１９Ａ図は
第１９図の／ＩＡ断面図、第１９Ｂ図は上記一方の防振
ゴムの底面図、第２０図は上記他方の防振ゴムの平面図
、第２０Ａ図は第２０図のＡ−Ａ断面図、第２０Ｂ図は
上記他方の防振ゴムの底面図、第２Ｌ図は防振ゴムの変
更例の平面図、第２１Ａ図は第２１図のＡ−Ａ断面図、
第２２図は防振ゴムの変更例の平面図、第２２Ａ図は第
２２図のＡ−Ａ断面図、第２３図は防振ゴムの他の変更
例の平面図、第２３Ａ図は第２３図のＡ−Ａ断面図、第
２４図は防振ゴムの他の変更例の平面図、第２４八図は
第２４図のＡ−Ａ断面図である。
４・・・固定軸、５・・・固定子、２２．５７・・・キ
一部、２３．５５・・・キー溝、４１・・・係合突条、
４５・・・間座、５３・・・防振ゴム、５６・・・固定
管、５’６ａ 、５６ｂ ・・・分割固定管、５８・
・・フランジ部、５９・・・透孔。FIG. 1 is a central vertical cross-sectional view of a first embodiment of the electric motor of the present invention, FIG. 2 is a plan view of the fixed shaft, FIG. 3 is a plan view of the fixed tube, and FIG. 3A is A of FIG. -A sectional view, Figure 3B is a front view of the fixed tube, Figure 4 is a plan view of the vibration isolator, Figure 4A is a sectional view taken along line A-A in Figure 4, and Figure 5 is the stator shield. The top view of the swinging rubber, Figure 5A is the 5th
6 is a central vertical sectional view of the second embodiment of the electric motor, FIG. 7 is a plan view of the spacer, FIG. 7A is a sectional view taken along 1-A in FIG. Fig. 8 is a central vertical sectional view of the third embodiment of the electric motor, Fig. 9 is a plan view of the constituent plates of the stator core, Fig. 98 is a sectional view taken along line A-A in Fig. 9, and Fig. 10 is the above-mentioned FIG. 10A is a sectional view taken along line AA in FIG. 10, FIG. 10B is a sectional view taken along BB in FIG. 10, and FIG. The plan view, Figure 11A is a sectional view taken along line A-A in Figure 11, and Figure 1
Figure 2 is a plan view of the other anti-vibration rubber, and Figure 124 is the first one.
2, FIG. 13 is a central longitudinal sectional view of the fourth embodiment of the electric motor, FIG. 14 is a plan view of one of the vibration isolating rubbers, and FIG. 14A is a cross-sectional view taken along A-A in FIG. 14. A sectional view, FIG. 15 is a plan view of the other anti-vibration rubber, and FIG. 15A is A in FIG. 15.
-A sectional view, FIG. 16 is a central longitudinal sectional view of the fifth embodiment of the electric motor, FIG. 17 is a plan view of one of the divided fixed tubes, and FIG.
The figure is a sectional view taken along the line A-A in FIG. 17, FIG. 18 is a plan view of the other divided fixed tube, and FIG. 18A is a sectional view taken along the line A-A in FIG. 18.
Figure 19 is a plan view of one of the vibration isolators, Figure 19A is a sectional view taken at /IA in Figure 19, Figure 19B is a bottom view of one of the vibration isolators, and Figure 20 is the other vibration isolator. A plan view of the rubber, FIG. 20A is a sectional view taken along the line A-A in FIG. 20, FIG. 20B is a bottom view of the other vibration isolating rubber, FIG. 2L is a plan view of a modified example of the vibration isolating rubber, and FIG. 21A is a plan view of the rubber. is a sectional view taken along line A-A in FIG.
FIG. 22 is a plan view of a modified example of the vibration isolating rubber, FIG. 22A is a sectional view taken along the line A-A in FIG. 22, FIG. 23 is a plan view of another modified example of the vibration isolating rubber, and FIG. 24 is a plan view of another modification of the anti-vibration rubber, and FIG. 248 is a sectional view taken along the line AA in FIG. 24. 4... Fixed shaft, 5... Stator, 22.57... Key part, 23.55... Keyway, 41... Engagement protrusion,
45... Spacer, 53... Anti-vibration rubber, 56... Fixed tube, 5'6a, 56b... Split fixed tube, 58...
...Flange part, 59...Through hole.
Claims (1)
方向に延びる係合突条（４１）を形成する一方、上記固
定軸（４）よりも軟質材料製の固定管（５６）の外周部
に防振部材（５３）を介して固定子（５）を装着し、上
記固定管（５６）を上記固定軸（４）の外周部に圧入す
ることによってその内周部を上記係合突条（４１）で変
形させ、これにより固定管（５６）を固定軸（４）に装
着することを特徴とする電動機。 ２、上記固定軸（４）の基部側に間座（４５）を配置す
る一方、上記固定管（５６）の反圧入端側にフランジ（
５８）を周設し、上記間座（４５）とフランジ（５８）
とで上記防振部材（５３）をその両側から挟持すべく構
成したことを特徴とする第１請求項記載の電動機。 ３、上記固定管（５６）、防振部材（５３）、固定子（
５）のそれぞれの間が、軸方向に延びる凹凸部の嵌合構
造によって径方向トルクを伝達可能に連結されており、
上記固定管（５６）と防振部材（５３）との連結部（５
５）（５７）と、上記防振部材（５３）と固定子（５）
との連結部（２２）（２３）とが、交互に位相を持たせ
て配置されていることを特徴とする第１請求項記載の電
動機。 ４、上記固定管（５６）と防振部材（５３）との連結部
（５５）（５７）が１個所だけ設けられ、また上記防振
部材（５３）と固定子（５）との連結部（２２）（２３
）が、上記連結部（５５）（５７）とは周方向反対側の
位置に１個所だけ設けられていることを特徴とする第３
請求項記載の電動機。 ５、上記固定管（５６）は、上記固定軸（４）の基端側
に位置部分（５６ａ）と、それよりも先端側に位置する
部分（５６ｂ）とに分割構成され、各分割された固定管
（５６ａ）（５６ｂ）は、防振部材（５３）の両端面側
でのみ防振部材（５３）に連結されていることを特徴と
する第１請求項記載の電動機。 ６、上記防振部材（５３）には、吸振性能向上のために
軸方向に延びる透孔（５９）が開設されていることを特
徴とする第１請求項記載の電動機。[Claims] 1. An engaging protrusion (41) extending in the axial direction is formed on the outer circumference of the fixed shaft (4) that supports the stator (5), and the fixed shaft (4) is softer than the fixed shaft (4). A stator (5) is attached to the outer periphery of a fixed tube (56) made of material via a vibration isolating member (53), and the fixed tube (56) is press-fitted to the outer periphery of the fixed shaft (4). An electric motor characterized in that the inner circumferential portion thereof is deformed by the engaging protrusion (41), thereby attaching the fixed tube (56) to the fixed shaft (4). 2. A spacer (45) is arranged on the base side of the fixed shaft (4), and a flange (
58) is provided around the spacer (45) and the flange (58).
2. The electric motor according to claim 1, wherein said vibration isolating member (53) is held between both sides thereof. 3. The fixed tube (56), the vibration isolating member (53), the stator (
5) are connected to each other by a fitting structure of concave and convex portions extending in the axial direction so as to be able to transmit radial torque;
The connecting portion (5) between the fixed pipe (56) and the vibration isolating member (53)
5) (57), the vibration isolating member (53) and the stator (5)
The electric motor according to claim 1, wherein the connecting portions (22) and (23) are arranged with alternating phases. 4. Only one connecting portion (55) (57) is provided between the fixed pipe (56) and the vibration isolating member (53), and a connecting portion between the vibration isolating member (53) and the stator (5) is provided. (22) (23
) is provided at only one location on the opposite side in the circumferential direction from the connecting portions (55) and (57).
An electric motor according to the claims. 5. The fixed tube (56) is divided into a portion (56a) located on the base end side of the fixed shaft (4) and a portion (56b) located on the distal side thereof, and each divided portion The electric motor according to claim 1, wherein the fixed tubes (56a) and (56b) are connected to the vibration isolating member (53) only at both end surfaces of the vibration isolating member (53). 6. The electric motor according to claim 1, wherein the vibration isolating member (53) is provided with a through hole (59) extending in the axial direction in order to improve vibration absorption performance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29655790A JP2910222B2 (en) | 1990-10-31 | 1990-10-31 | Electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29655790A JP2910222B2 (en) | 1990-10-31 | 1990-10-31 | Electric motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04168942A true JPH04168942A (en) | 1992-06-17 |
| JP2910222B2 JP2910222B2 (en) | 1999-06-23 |
Family
ID=17835084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29655790A Expired - Fee Related JP2910222B2 (en) | 1990-10-31 | 1990-10-31 | Electric motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2910222B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5376850A (en) * | 1993-07-02 | 1994-12-27 | Seagate Technology, Inc. | Audible noise reduction in a disc drive |
| US5619389A (en) * | 1995-02-10 | 1997-04-08 | Seagate Technology, Inc. | Stator isolation for spindle motor |
| US5694268A (en) * | 1995-02-10 | 1997-12-02 | Seagate Technology, Inc. | Spindle motor having overmolded stator |
| US6104570A (en) * | 1998-09-18 | 2000-08-15 | Seagate Technology, Inc. | Disc drive spindle motor having tuned stator with adhesive grooves |
| EP1063752A1 (en) * | 1999-06-25 | 2000-12-27 | Calsonic Corporation | Brushless Motor |
| JP2007312576A (en) * | 2006-05-22 | 2007-11-29 | Otics Corp | Rotor shaft |
| JP2008301622A (en) * | 2007-05-31 | 2008-12-11 | Asmo Co Ltd | Brushless motor |
| JP2011166855A (en) * | 2010-02-04 | 2011-08-25 | Asmo Co Ltd | Brushless motor |
| KR101362361B1 (en) * | 2010-02-04 | 2014-02-13 | 아스모 가부시키가이샤 | Brushless motor and manufacturing method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5081005B2 (en) * | 2007-03-09 | 2012-11-21 | アスモ株式会社 | Brushless motor and manufacturing method thereof |
-
1990
- 1990-10-31 JP JP29655790A patent/JP2910222B2/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5376850A (en) * | 1993-07-02 | 1994-12-27 | Seagate Technology, Inc. | Audible noise reduction in a disc drive |
| US5619389A (en) * | 1995-02-10 | 1997-04-08 | Seagate Technology, Inc. | Stator isolation for spindle motor |
| US5694268A (en) * | 1995-02-10 | 1997-12-02 | Seagate Technology, Inc. | Spindle motor having overmolded stator |
| US6104570A (en) * | 1998-09-18 | 2000-08-15 | Seagate Technology, Inc. | Disc drive spindle motor having tuned stator with adhesive grooves |
| EP1063752A1 (en) * | 1999-06-25 | 2000-12-27 | Calsonic Corporation | Brushless Motor |
| US6236126B1 (en) | 1999-06-25 | 2001-05-22 | Calsonic Kansei Corporation | Brushless motor |
| JP2007312576A (en) * | 2006-05-22 | 2007-11-29 | Otics Corp | Rotor shaft |
| JP2008301622A (en) * | 2007-05-31 | 2008-12-11 | Asmo Co Ltd | Brushless motor |
| JP2011166855A (en) * | 2010-02-04 | 2011-08-25 | Asmo Co Ltd | Brushless motor |
| KR101362361B1 (en) * | 2010-02-04 | 2014-02-13 | 아스모 가부시키가이샤 | Brushless motor and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2910222B2 (en) | 1999-06-23 |
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