JPH0158741B2 - - Google Patents
Info
- Publication number
- JPH0158741B2 JPH0158741B2 JP11895282A JP11895282A JPH0158741B2 JP H0158741 B2 JPH0158741 B2 JP H0158741B2 JP 11895282 A JP11895282 A JP 11895282A JP 11895282 A JP11895282 A JP 11895282A JP H0158741 B2 JPH0158741 B2 JP H0158741B2
- Authority
- JP
- Japan
- Prior art keywords
- stator
- slot
- winding
- brackets
- fixing means
- 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 25
- 238000000465 moulding Methods 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011295 pitch Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 description 8
- 238000009413 insulation Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- 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
- H02K5/08—Insulating casings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (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６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 the rotating shaft 6, and the bearings 7a, 7b supporting the rotating shaft 6 are attached after the brackets 8a, 8b are press-fitted into the pilot parts 4a, 4b provided on the stator 4. Retaining rings 9a and 9b are attached to the shaft 6 from both outer sides of the bearings 7a and 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のインロー部端面
をF1′の力で押すことになる。反対方向の力の場
合も全く同様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７ａ，
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と外側のブラケツ
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 is pushed with a force of F 1 '. In the case of force in the opposite direction, the same procedure can be followed. 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, 7b are installed after the brackets 8a, 8b are installed, so the bearings 7a, 7b are installed.
7b cannot be assembled together with the rotor 5 in advance. Therefore, the assembly work becomes complicated.
In addition, there must be a clearance fit between the inner shaft and outer bracket around the bearing, which may cause slippage between these three parts 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、予め組み
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 assembled in advance by attaching retaining rings 9a, 9b to its shaft 6, and furthermore, bearings 7a, 7b are attached and fixed to the outside of the retaining rings 9a, 9b. Then, it is held on the spigot parts 4a, 4b of the stator by brackets 8a, 8b,
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１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 shaft 1 is transmitted in the direction that attempts to separate the bracket on the opposite side from the side to which the force is applied from the stator. It is.
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、その分だけ成形厚さ
が大きく必要となる。更に高出力のモータにあ
つては、巻線の占積率が大きいためコイルエンド
も大きくなり、巻線２とナツト１０ａ，１０ｂと
の間に充分な絶縁距離をとるためにはより大き
く必要となる。又、一方で、ブラケツト８ａ，８
ｂ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, in the case of a high-output motor, the space factor of the winding is large, so the coil end is also large, and in order to maintain a sufficient insulation distance between the winding 2 and the nuts 10a and 10b, a larger coil end is required. Become. Moreover, on the other hand, the brackets 8a, 8
The heads of the bolts 11a and 11b for tightening and fixing the screws 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
定子のインロー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
ロー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 pressing force into the spigot part of the stator or by using an adhesive in combination. When the tension changes, the interference may become smaller and the pull-out load may decrease.
This is a method that is difficult to adopt.
本発明は上記問題点に鑑み、モールドモータに
おけるブラケツトの固定を容易にするとともに絶
縁性を向上させ、かつ寸法を小さくすることがで
きるモールドモータを提供することを目的とする
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 fixation of a bracket in the molded motor, improves insulation properties, and reduces 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，８ｂ
と、固定手段１３を有し、前記固定子４は、巻線
２が固定子鉄心１のスロツト内に収納され、スロ
ツト内部の面積のうち巻線２が占める面積の割合
（巻線占積率）が小さなスロツト１５ａと巻線占
積率が大きなスロツト１５ｂが形成され、モール
ド樹脂３により一体的にモールドされ、かつ２つ
以上の巻線占積率が小さなスロツト１５ａには貫
通する穴１２が１つづつ形成されており、前記穴
１２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の両端面に配
置され、かつ前記ブラケツト８ａ，８ｂには穴１
２に対応する位置に穴１４を設けており、前記固
定手段１３は穴１２と穴１４を貫通しており、前
記固定子４にブラケツト８ａ，８ｂを固定手段１
３で固着したものである。 To achieve this purpose, the molded motor of the present invention includes a stator 4 and a pair of brackets 8a and 8b.
and a fixing means 13, the stator 4 has a winding 2 housed in a slot of the stator core 1, and a ratio of the area occupied by the winding 2 to the area inside the slot (winding space factor). ) are formed with a slot 15a having a small winding space factor and a slot 15b having a large winding space factor, and are integrally molded with the molding resin 3, and two or more slots 15a having a small winding space factor have a penetrating hole 12. The holes 12 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 the holes 12 are formed in the brackets 8a and 8b.
The fixing means 13 passes through the holes 12 and 14, and the brackets 8a and 8b are attached to the stator 4 at positions corresponding to the fixing means 1.
It was fixed at 3.
この構成により、巻線占積率の小さいスロツト
１５ａに固定手段１２が位置するため絶縁性を向
上することができ、又、従来必要であつたインサ
ートナツト又はボルトおよびそのスペースが不要
となるため、薄形化を図れるとともにブラケツト
の固定を容易にできる。更にブラケツトの固定強
度を固定手段のみで管理できるため、品質を安定
させることができる。 With this configuration, since the fixing means 12 is located in the slot 15a where the winding space factor is small, the insulation can be improved, and the insert nuts or bolts and their space, which were conventionally required, are no longer required. It can be made thinner and the bracket can be easily fixed. Furthermore, since the fixing strength of the bracket can be managed only by the fixing means, quality can be stabilized.
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の継
鉄部にトロイダル巻線２がその巻装を違え、占積
率を異にして巻積されモールド樹脂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。こ
の固定子４の両端面にはブラケツト８ａ，８ｂに
配設するインロー部４ａ，４ｂを形成するととも
に、前記鉄心１の占積率の小さい、複数箇所のス
ロツト１５ａの開口部近傍の巻線２との絶縁を保
つ位置に、固定子４を貫通する穴１２を設け、こ
の穴１２に対抗する位置の前記ブラケツト８ａ，
８ｂの固定子４に当接する面に複数の穴１４を設
け、固定子４の両端のインロー部４ａ，４ｂに回
転子５を支承する軸６に圧入された軸受７ａ，７
ｂを保持する前記ブラケツト８ａ，８ｂを配設
し、前記貫通穴１２とブラケツトの穴１４を挿通
する固定手段としてリベツトを用い、このリベツ
ト１３の端部１３ａを絞め、固定子４にブラケツ
ト８ａ，８ｂを一体に固定したモールドモータを
構成している。 In the figure, the stator core 1 has toroidal windings 2 wound around the yoke part of the slot 15 in different windings and with different space factors, and is integrally molded and solidified with mold resin 3 to form the stator. 4 is formed. The stator 4 has pilot parts 4a and 4b arranged on the brackets 8a and 8b on both end faces thereof, and windings 2 near the openings of the slots 15a at a plurality of locations where the space factor of the iron core 1 is small. A hole 12 passing through the stator 4 is provided at a position that maintains insulation from the brackets 8a,
Bearings 7a, 7 are provided with a plurality of holes 14 on the surface of 8b that contacts the stator 4, and are press-fitted into the shaft 6 that supports the rotor 5 into the pilot parts 4a, 4b at both ends of the stator 4.
The brackets 8a and 8b are arranged to hold the brackets 8a and 8b, and a rivet is used as a fixing means to insert the through hole 12 and the hole 14 of the bracket. 8b is integrally fixed to constitute a molded motor.
なお、固定子４の内部には回転子５が配置され
ており、この回転子５は軸６に止め輪９ａ，９ｂ
を装着したのち、軸受７ａ，７ｂがその外側に装
着固定され予め組立てられている。 Note that a rotor 5 is disposed inside the stator 4, and this rotor 5 has retaining rings 9a and 9b attached to the shaft 6.
After the bearings 7a and 7b are installed, the bearings 7a and 7b are installed and fixed on the outside thereof, and are assembled in advance.
ここで、第３図の切欠部で明かな如く、固定手
段としてのリベツト１３を通す為の穴１２を設け
たスロツトの巻線占積率は、これを設けないスロ
ツトのそれよりも小さく設計されている。すなわ
ち、スロツト内において固定手段の通るスペース
を確保する訳である。 As is clear from the notch in Fig. 3, the winding space factor of the slot provided with the hole 12 for passing the rivet 13 as a fixing means is designed to be smaller than that of the slot not provided with this hole. ing. In other words, a space is secured within the slot for the fixing means to pass through.
そして、この占積率の差は、スロツトの形状、
面積が同じで巻回数の差によつて生じさせても良
いし、固定子鉄板形成時にスロツトの面積、形状
を違えて巻回数は同一にして生じさせても良く、
又その両者の組合せで実現しても良い。しかし、
巻回数の差による方法が鉄心の汎用性を考えると
最も好都合である。 The difference in space factor is determined by the shape of the slot,
It may be caused by having the same area and a difference in the number of turns, or it may be caused by changing the area and shape of the slot when forming the stator iron plate and making the number of turns the same.
Alternatively, it may be realized by a combination of both. but,
Considering the versatility of the core, the method based on the difference in the number of turns is the most convenient.
なお、実施例では固手手段をリベツトとして説
明したが、通しボルトを用いる場合にも同様にし
て予め組立てる事ができる。 In addition, in the embodiment, the fixing means is explained as a rivet, but when using a through bolt, it can be assembled in advance in the same manner.
上記の様な構成にすると、下記の効果を奏す
る。 The above configuration provides the following effects.
(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。(1) No space is required for insert nuts or bolts, and the distance between the core end face and stator end face can be made smaller than in the conventional method, resulting in a thinner motor.
(2) 固定手段を配置するスロツトの巻線占積率は
小さくしたので、固定手段が通るスペースが十
分確保され、従来の如く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) Since the winding space factor of the slot in which the fixing means is placed has been reduced, there is sufficient space for the fixing means to pass through, and there is no insulation failure due to insufficient insulation distance between the insert nut or bolt and the winding as in the past. It disappears.
(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) The fixing strength of the bracket is not affected by the molding conditions unlike the conventional method using inserts, and the strength of the rivet becomes the fixing strength, so quality is stable.
(4) リベツトを固定手段に用いた場合は、固定子
端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さらに薄くな
る。(4) When rivets are used as the fixing means, the bolts or nuts do not protrude from the end face of the stator, so the thickness on which the motor is mounted becomes even 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.
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.
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、１２……穴、１
３……リベツト（固定手段）。
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, 12...Hole, 1
3...Rivets (fixing means).
Claims (1)
と、固定手段１３を有し、前記固定子４は、巻線
２が固定子鉄心１のスロツト内に収納され、スロ
ツト内部の面積のうち巻線２が占める面積の割合
（巻線占積率が）が小さなスロツト１５ａと巻線
占積率は大きなスロツト１５ｂが形成され、モー
ルド樹脂３により一体的にモールドされ、かつ２
つ以上の巻線占積率が小さなスロツト１５ａには
貫通する穴１２が１つづつ形成されており、前記
穴１２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の両端側に
配置され、かつ前記ブラケツト８ａ，８ｂには穴
１２に対応する位置に穴１４を設けており、前記
固定手段１３は穴１２と穴１４を貫通しており、
前記固定子４にブラケツト８ａ，８ｂを固定手段
１３で固着したモールドモータ。 ２ 巻線２をスロツト毎の継鉄部にトロイダル状
に巻装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 fixing means 13, the stator 4 has a winding 2 housed in a slot of the stator core 1, and a ratio of the area occupied by the winding 2 to the area inside the slot (winding space factor). ) is formed with a small slot 15a and a slot 15b with a large winding space factor, integrally molded with molding resin 3, and 2
One through hole 12 is formed in each of the slots 15a having a small winding space factor, and the holes 12 are arranged at equal pitches on the circumference.
The brackets 8a, 8b are arranged at both ends of the stator 4, and holes 14 are provided in the brackets 8a, 8b at positions corresponding to the holes 12, and the fixing means 13 penetrates through the holes 12 and 14. and
A molded motor in which brackets 8a and 8b are fixed to the stator 4 by fixing means 13. 2. The molded motor according to claim 1, wherein the winding 2 is wound in a toroidal manner around the yoke of each slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57118952A JPS5910152A (en) | 1982-07-07 | 1982-07-07 | Molded motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57118952A JPS5910152A (en) | 1982-07-07 | 1982-07-07 | Molded motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5910152A JPS5910152A (en) | 1984-01-19 |
| JPH0158741B2 true JPH0158741B2 (en) | 1989-12-13 |
Family
ID=14749315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57118952A Granted JPS5910152A (en) | 1982-07-07 | 1982-07-07 | Molded motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5910152A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0330548U (en) * | 1989-07-31 | 1991-03-26 |
-
1982
- 1982-07-07 JP JP57118952A patent/JPS5910152A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0330548U (en) * | 1989-07-31 | 1991-03-26 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5910152A (en) | 1984-01-19 |
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