JPH0158740B2 - - Google Patents
Info
- Publication number
- JPH0158740B2 JPH0158740B2 JP11574182A JP11574182A JPH0158740B2 JP H0158740 B2 JPH0158740 B2 JP H0158740B2 JP 11574182 A JP11574182 A JP 11574182A JP 11574182 A JP11574182 A JP 11574182A JP H0158740 B2 JPH0158740 B2 JP H0158740B2
- Authority
- JP
- Japan
- Prior art keywords
- stator
- brackets
- hole
- bracket
- rivet
- 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
Links
- 238000004804 winding Methods 0.000 claims description 13
- 239000011295 pitch Substances 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 229920001169 thermoplastic Polymers 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 9
- 238000009413 insulation Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/12—Impregnating, moulding insulation, heating or drying of windings, stators, rotors or machines
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Manufacture Of Motors, Generators (AREA)
Description
【発明の詳細な説明】
本発明はモールドモータのブラケツトの固定構
造に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fixing structure for a bracket of a molded motor.
モールドモータのブラケツトの固定はブラケツ
トに加わる力の方向から大別して２通りの方式が
考えられる。 There are two possible ways to fix the bracket of the molded motor, depending on the direction of the force applied to the bracket.
第１図はその一例を示すもので、固定子鉄心１
に巻線２を巻装しモールド樹脂３で一体的にモー
ルド固定して固定子４を形成している。一方、回
転子５は回転軸６に固着され、この回転軸６を支
持する軸受７ａ，７ｂは、ブラケツト８ａ，８ｂ
を固定子４に設けたインロー部４ａ，４ｂに圧入
した後、装着され、その軸受７ａ，７ｂの両外側
から止め輪９ａ，９ｂを軸に対して装着する。 Figure 1 shows an example of this.Stator core 1
A stator 4 is formed by winding a winding 2 around and integrally molding and fixing it with a mold resin 3. On the other hand, the rotor 5 is fixed to a rotating shaft 6, and bearings 7a and 7b supporting this rotating shaft 6 are attached to brackets 8a and 8b.
are press-fitted into the pilot parts 4a, 4b provided on the stator 4, and then mounted, and retaining rings 9a, 9b are mounted on the shaft from both outsides of the bearings 7a, 7b.
この様に組立てると軸６に対して仮に右側より
矢印の力F1が加わつた場合を考えると、力F1は
止め輪９ａを介して受軸７ａに伝わり更にブラケ
ツト８ａに伝つて最後は固定子４のインロー部端
面をF′1の力で押すことになる。反対方向の力の
場合も全く同様の手順で考えれば良い。この様に
すると力の加わる方向と反対側の軸受或はブラケ
ツトに抜け荷重が加わらない為、プーリモータ或
はコンベア用ローラなどでよく採用されている。
しかし、この方式だと、ブラケツト８ａ，８ｂを
装着後に軸受７ａ，７ｂを装着するため、軸受７
ａ，７ｂを回転子５と一体に予め組立てておく事
が出来なくなる。従つて、組立作業が複雑にな
る。又、軸受を中心にして中側の軸を外側のブラ
ケツトの間がいずれもスキマばめにしなければな
らず、この３者の間に回転時にスベリを生じ、結
果的ブラケツト或は軸がクリープを起す事になつ
て、製品の信頼性の点で一般の電動機としては採
用できないものであつた。 When assembled in this way, if we consider a case where a force F 1 as indicated by the arrow is applied to the shaft 6 from the right side, the force F 1 is transmitted to the bearing shaft 7a via the retaining ring 9a, and further transmitted to the bracket 8a, where it is finally fixed. The end face of the spigot part of the child 4 is pushed with a force of F'1 . The same procedure can be used for forces in the opposite direction. This method is often used in pulley motors, conveyor rollers, etc. because the pullout load is not applied to the bearing or bracket on the opposite side to the direction in which the force is applied.
However, with this method, the bearings 7a and 7b are installed after the brackets 8a and 8b are installed.
It becomes impossible to assemble a and 7b integrally with the rotor 5 in advance. Therefore, the assembly work becomes complicated. In addition, it is necessary to provide a clearance fit between the inner shaft and the outer bracket around the bearing, which may cause slippage between these three components during rotation, resulting in creep of the bracket or shaft. Due to the reliability of the product, it could not be used as a general electric motor.
第２図は他の例を示すものである。固定子４は
前例と同様に形成されている。一方、回転子５は
その軸６に止め輪９ａ，９ｂを装着し、更にその
外側に軸受７ａ，７ｂが装着固定され、予め組立
てられる。そして、ブラケツト８ａ，８ｂによつ
て固定子のインロー部４ａ，４ｂに保持され、固
定子成形時に埋込んだナツト１０ａ，１０ｂに対
してボルト１１ａ，１１ｂによつて締付け固定さ
れる。 FIG. 2 shows another example. The stator 4 is formed similarly to the previous example. On the other hand, the rotor 5 is pre-assembled with retaining rings 9a and 9b attached to its shaft 6, and bearings 7a and 7b attached and fixed to the outside of the retaining rings 9a and 9b. The brackets 8a and 8b hold the bolts in the spigot parts 4a and 4b of the stator, and the bolts 11a and 11b are tightened and fixed to the nuts 10a and 10b embedded during stator molding.
この方式は一般式に採られる方法で、前例と基
本的に異なる点は、軸６に加える力F1が力を加
える側と反対側のブラケツトを固定子から離そう
とする方向に伝わる点である。 This method is a method adopted by a general formula, and the basic difference from the previous example is that the force F 1 applied to the shaft 6 is transmitted in the direction that tries to separate the bracket on the opposite side from the side to which the force is applied. be.
従つてそれに耐えるだけの固着力がブラケツト
８ａ，８ｂと固定子４の固着において要求される
訳である。 Therefore, a fixing force sufficient to withstand this is required for fixing the brackets 8a, 8b and the stator 4.
一方、前例に比し、軸６と軸受７ａ，７ｂを圧
入によつて一体にする事が可能なため、軸受部分
のクリープなどの信頼性に関する心配はなく、
又、組立ても部分組立が採用でき、はるかに合理
的に行なう事ができる。 On the other hand, compared to the previous example, the shaft 6 and the bearings 7a and 7b can be integrated by press-fitting, so there is no concern about reliability such as creep in the bearing part.
Also, partial assembly can be used for assembly, making it much more efficient.
しかし、この構成ではナツト１０ａ，１０ｂを
埋込む必要があり、成形時に手間がかかり、又、
ナツト１０ａ，１０ｂの埋込後の抜け強度を確保
するためには、ナツト１０ａ，１０ｂをある程度
の厚みで埋込まねばならず、その又だけ成形厚さ
が大きく必要となる。更に巻線２とナツト１０
ａ，１０ｂとの間に充分な絶縁距離をとる必要も
ある。又、一方、ブラケツト８ａ，８ｂを締付け
固定するボルト１１ａ，１１ｂの頭が、モータ端
面の両側に出張つて、モータ取付け上じやまにな
る。 However, with this configuration, it is necessary to embed the nuts 10a and 10b, which takes time and effort during molding, and
In order to ensure the pull-out strength after embedding the nuts 10a, 10b, the nuts 10a, 10b must be embedded to a certain degree of thickness, and the molding thickness must be increased accordingly. Furthermore, winding 2 and nut 10
It is also necessary to provide a sufficient insulation distance between a and 10b. On the other hand, the heads of the bolts 11a and 11b for tightening and fixing the brackets 8a and 8b protrude on both sides of the motor end face, making it difficult to install the motor.
第２の方式の他の例としては、ブラケツトを固
定子のインロ一部への圧入力だけ或は接着剤を併
用して固定する方法も考えられるが、これはイン
ロ一部の寸法が熱膨張によつて変化した時にしめ
しろ小さくなり抜け荷重が低下する恐れがあり、
採用しにくい方法である。 As another example of the second method, it is possible to fix the bracket only by press force on a part of the stator's spigot or by using an adhesive, but this is because the dimensions of the part of the spigot are due to thermal expansion. There is a risk that the interference will become smaller and the pull-out load will decrease when the
This method is difficult to adopt.
本発明は上記問題に鑑みて、モールドモータに
おけるブラケツトの固定を容易にし、かつ絶縁信
頼性を損う事もなく又、モータ寸法を最小になし
うるモールドモータの提供を目的とするものであ
る。 SUMMARY OF THE INVENTION In view of the above-mentioned problems, it is an object of the present invention to provide a molded motor that facilitates fixing of a bracket in a molded motor, does not impair insulation reliability, and can minimize motor dimensions.
この目的を達成するために本発明のモールドモ
ータは、固定子４と、一対のブラケツト８ａ，８
ｂと、複数個のリベツト１２を有し、前記固定子
４は、巻線２が固定子鉄心１のスロツト１５内に
収納され、モールド樹脂３により一体的にモール
ドされ、かつ、２つ以上のスロツト１５には貫通
する穴１３が１つずつ形成されており、前記穴１
３は円周上に均等ピツチで配置されており、前記
ブラケツト８ａ，８ｂは固定子４の両側端面に配
置され、かつ前記ブラケツト８ａ，８ｂには穴１
３に対応する位置に穴１４を設けており、前記リ
ベツト１２は、穴１３と穴１４を貫通しており、
前記固定子４にブラケツト８ａ，８ｂをリベツト
１２で固着したものである。 In order to achieve this object, the molded motor of the present invention includes a stator 4 and a pair of brackets 8a, 8.
b, and a plurality of rivets 12, the stator 4 has the winding 2 housed in the slot 15 of the stator core 1, is integrally molded with mold resin 3, and has two or more rivets 12. One through hole 13 is formed in each slot 15, and the hole 1
3 are arranged at equal pitches on the circumference, and the brackets 8a and 8b are arranged on both end surfaces of the stator 4, and holes 1 are provided in the brackets 8a and 8b.
A hole 14 is provided at a position corresponding to 3, and the rivet 12 passes through the hole 13 and the hole 14,
Brackets 8a and 8b are fixed to the stator 4 with rivets 12.
この構成によれば、従来必要としていたインサ
ーナツト又はボルトおよびそのスペースが不用と
なり、薄形のモータに仕上げることができるとと
もにインサーナツト又はボルトと巻線との絶縁不
良がなくなる。又、ブラケツトの固定強度がリベ
ツトのみで管理でき、品質を安定させることがで
きる。更に、リベツトを用いるためブラケツトの
固定の工程が簡単にできる。 According to this configuration, the insert nuts or bolts and their space that were conventionally required are no longer necessary, the motor can be made thin, and there is no insulation defect between the insert nuts or bolts and the windings. In addition, the fixing strength of the bracket can be controlled using only rivets, and quality can be stabilized. Furthermore, since rivets are used, the process of fixing the bracket can be simplified.
以下、固定子鉄心のスロツト毎の継鉄部に巻線
を施したトロイダル巻線モータに応用した例を実
施例として、本発明を詳細に説明する。 The present invention will be described in detail below using an example in which the present invention is applied to a toroidal winding motor in which a yoke for each slot of a stator core is wound.
第３図は本発明の実施例の一部を切欠いた側面
図であり、第４図は第３図のＸ―X′線による断
面図である。 FIG. 3 is a partially cutaway side view of an embodiment of the present invention, and FIG. 4 is a sectional view taken along line XX' in FIG.
図において固定子鉄心１にはスロツト１５毎の
継鉄部にトロイダル巻線２が巻装され、モールド
樹脂３によつて一体的に成形固化され固定子４を
形成している。 In the figure, a toroidal winding 2 is wound around a yoke portion of each slot 15 on a stator core 1, and is integrally molded and solidified with a mold resin 3 to form a stator 4.
そして前記固定子４の両端面にはブラケツト８
ａ，８ｂを保持する為のインロー部４ａ，４ｂ
と、鉄心１のスロツト１５の開口部近傍の巻線２
との絶縁距離を確保する位置にリベツト１２を挿
通する為の軸方向に貫通する穴１３がスロツト毎
に１ケ、合計では少なくとも２ケ以上が同一ピツ
チ円上に設けられている。軸６に止め輪９ａ，９
ｂを装着したのち、軸受７ａ，７ｂをその外側に
装着固定し、予め組立てられた回転子５を前記固
定子４の内径部に挿入し、ブラケツト８ａ，８ｂ
の軸受部をそれぞれ前記軸受７ａ，７ｂに嵌入す
るとともに外周部を前記固定子４に設けたインロ
ー部４ａ，４ｂに嵌入し固定子４に配設される。 Brackets 8 are provided on both end surfaces of the stator 4.
Pilot parts 4a, 4b for holding a, 8b
and the winding 2 near the opening of the slot 15 of the iron core 1.
One hole 13 penetrating in the axial direction for inserting the rivet 12 is provided in each slot, and at least two or more holes in total are provided on the same pitch circle at a position that ensures an insulating distance from the rivet 12. Retaining rings 9a, 9 on the shaft 6
After installing the bearings 7a and 7b, the bearings 7a and 7b are installed and fixed on the outside, and the pre-assembled rotor 5 is inserted into the inner diameter part of the stator 4, and the brackets 8a and 8b are installed.
The bearing portions are fitted into the bearings 7a and 7b, respectively, and the outer peripheral portions are fitted into the spigot portions 4a and 4b provided on the stator 4, so that the stator 4 is provided.
このとき、ブラケツト８ａ，８ｂには固定子４
の穴１３と対向する部分に前記穴１３と同じ大き
さの穴１４が複数設けられているので、ブラケツ
ト８ａ，８ｂを固定子４に取付ける際の角度の自
由度を増すように、組立のしやすさを図つてい
る。 At this time, the stator 4 is attached to the brackets 8a and 8b.
Since a plurality of holes 14 of the same size as the holes 13 are provided in the portion facing the holes 13, the assembly can be adjusted to increase the degree of freedom in angle when attaching the brackets 8a and 8b to the stator 4. We are trying to make it easier.
この様にして固定子４の両側をブラケツト８
ａ，８ｂによつてはさんだ状態に組立てたものに
対して、一方のブラケツトの穴１４から前記固定
子の穴１３にリベツト１２を挿通し、他端でリベ
ツト１２の端部１２ａをかしめて固定子４とブラ
ケツト８ａ、及び８ｂとを一体的に固定すること
により、回転子５を固定子４内の判定の位置に固
定するようにしている。 In this way, attach both sides of the stator 4 to the brackets 8.
Insert the rivet 12 from the hole 14 of one bracket into the hole 13 of the stator, and fix it by caulking the end 12a of the rivet 12 at the other end. By integrally fixing the child 4 and the brackets 8a and 8b, the rotor 5 is fixed at a determined position within the stator 4.
上記の様な構成にすると、
(1) インサートナツト又はボルトのスペースが不
用となり、鉄心端面と固定子端面との距離が
従来方式より小さくでき、その分薄形のモータ
に仕上げられる。 With the above configuration, (1) the space for insert nuts or bolts is unnecessary, the distance between the core end face and the stator end face can be made smaller than in the conventional system, and a thinner motor can be produced accordingly;
(2) インサートナツト又はボルトと巻線の間の絶
縁距離不足による絶縁不良がなくなる。(2) Insulation failures due to insufficient insulation distance between insert nuts or bolts and windings are eliminated.
(3) インサートによる従来方式の様に成形条件に
よつてブラケツト固定強度が左右される事はな
く、リベツトの強度が固定強度となるため、品
質が安定する。(3) Unlike conventional methods using inserts, the strength of fixing the bracket is not affected by molding conditions, and the strength of the rivet becomes the fixing strength, resulting in stable quality.
(4) 固定子断面へのボルト又はナツトの突出しが
なくなるため、モータの取付上の厚さが更に薄
くなる。(4) Since the bolts or nuts do not protrude into the stator cross section, the thickness of the motor installation becomes thinner.
(5) インサートの場合、そのピツチ円直径が比較
的大きいため、ブラケツト外径もそれ以上の大
きさが必要であるが、本発明の場合、スロツト
開口部近傍がピツチ円となるのでブラケツト外
径が小さくでき、材料費が低減でき、モータの
較量化につながる。(5) In the case of inserts, the diameter of the pitch circle is relatively large, so the outer diameter of the bracket must also be larger than that. However, in the case of the present invention, the pitch circle is near the slot opening, so the outer diameter of the bracket can be made smaller, material costs can be reduced, and the motor can be calibrated.
(6) 締付用ボルト又はナツトを装着する手間よ
り、リベツトを通してカシメる方が簡単で、工
程の合理化、自動化が図れる。(6) It is easier to swage through a rivet than to install a tightening bolt or nut, and the process can be streamlined and automated.
等々、従来方式のモールドモータよりコンパクト
で品質の良い製品を得るに多大の効果がある。etc., it has a great effect on obtaining products that are more compact and of better quality than conventional molded motors.
尚、本発明はトロイダル巻線形のモールドモー
タはついて説明を行なつたが、従来方式の巻線に
よるモールドモータの場合にももちろん有効であ
る。更にリベツトは非磁性金属を機械的にかしめ
ても良いし、ガラス繊維等で長さ方向に強化した
熱可塑性プラスチツクによるものを熱変形カシメ
或は超音波変形カシメ等の方法によつてもその効
果は変らない。 Although the present invention has been described with reference to a molded motor with toroidal winding, it is of course also effective in the case of a molded motor with conventional winding. Furthermore, rivets can be made by mechanically caulking non-magnetic metal, or by thermal deformation caulking or ultrasonic deformation caulking of thermoplastic plastics reinforced in the longitudinal direction with glass fibers, etc. remains unchanged.
第１図は従来方式のブラケツト取付構造を示す
モールドモータの断面図、第２図は別の従来方式
のブラケツト取付構造を示すモールドモータの断
面図、第３図は本発明の実施例にかかるモールド
モータの一部を切欠いた側面図、第４図は第３図
のＸ―X′線による断面図である。
１……固定子鉄心、２……巻線、３……モール
ド樹脂、４……固定子、４ａ，４ｂ……インロー
部、５……回転子、６……軸、７ａ，７ｂ……軸
受、８ａ，８ｂ……ブラケツト、９ａ，９ｂ……
止め輪、１２……リベツト、１３……穴。
FIG. 1 is a cross-sectional view of a molded motor showing a conventional bracket mounting structure, FIG. 2 is a cross-sectional view of a molded motor showing another conventional bracket mounting structure, and FIG. 3 is a molded motor according to an embodiment of the present invention. FIG. 4 is a partially cutaway side view of the motor, and FIG. 4 is a cross-sectional view taken along line XX' in FIG. DESCRIPTION OF SYMBOLS 1...Stator core, 2...Winding, 3...Mold resin, 4...Stator, 4a, 4b...Pilot part, 5...Rotor, 6...Shaft, 7a, 7b...Bearing , 8a, 8b... bracket, 9a, 9b...
Retaining ring, 12... rivet, 13... hole.
Claims (1)
と、複数個のリベツト１２を有し、前記固定子４
は、巻線２が固定子鉄心１のスロツト１５内に収
納され、モールド樹脂３により一体的にモールド
され、かつ、２つ以上のスロツト１５には貫通す
る穴１３が１つずつ形成されており、前記穴１３
は円周上に均等ピツチで配置されており、前記ブ
ラケツト８ａ，８ｂは固定子４の両側端面に配置
され、かつ前記ブラケツト８ａ，８ｂには穴１３
に対応する位置に穴１４を設けており、前記リベ
ツト１２は穴１３と穴１４を貫通しており、前記
固定子４にブラケツト８ａ，８ｂをリベツト１２
で固着したモールドモータ。 ２ リベツト１２を非磁性金属で形成した特許請
求の範囲第１項記載のモールドモータ。 ３ リベツト１２を熱可塑性プラスチツクで形成
し、繊維強化した特許請求の範囲第１項記載のモ
ールドモータ。[Claims] 1. Stator 4 and a pair of brackets 8a, 8b
and a plurality of rivets 12, and the stator 4
In this case, the winding 2 is housed in the slot 15 of the stator core 1, and is integrally molded with mold resin 3, and two or more slots 15 each have one penetrating hole 13 formed therein. , said hole 13
are arranged at equal pitches on the circumference, and the brackets 8a and 8b are arranged on both end faces of the stator 4, and holes 13 are provided in the brackets 8a and 8b.
A hole 14 is provided at a position corresponding to the stator 4, and the rivet 12 passes through the hole 13 and the hole 14.
Molded motor stuck. 2. The molded motor according to claim 1, wherein the rivet 12 is made of non-magnetic metal. 3. The molded motor according to claim 1, wherein the rivet 12 is made of thermoplastic plastic and reinforced with fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57115741A JPS596741A (en) | 1982-07-02 | 1982-07-02 | Molded motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57115741A JPS596741A (en) | 1982-07-02 | 1982-07-02 | Molded motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS596741A JPS596741A (en) | 1984-01-13 |
| JPH0158740B2 true JPH0158740B2 (en) | 1989-12-13 |
Family
ID=14669913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57115741A Granted JPS596741A (en) | 1982-07-02 | 1982-07-02 | Molded motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS596741A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2539606B2 (en) * | 1986-02-03 | 1996-10-02 | 株式会社芝浦製作所 | Electric motor manufacturing method |
| JP2764268B2 (en) * | 1988-04-28 | 1998-06-11 | 株式会社芝浦製作所 | Electric motor |
-
1982
- 1982-07-02 JP JP57115741A patent/JPS596741A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS596741A (en) | 1984-01-13 |
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