JPS6125327Y2 - - Google Patents

Description

【考案の詳細な説明】 本考案は回転電気機器固定子の接続すべきコイ
ルの端とリードとの接続部の固定ならびに固定子
からの、絶縁構造の改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to fixing the connecting portion between the end of a coil to be connected and a lead in a stator of a rotating electrical equipment, and improving the insulation structure from the stator.

従来より一般的に使われている回転電気機器固
定子の斜視図を第１図に示す。接続すべきコイル
の端１とリード線２とは、半田付け、又は圧着、
端子によるカシメ等の方法により接続され、適当
な絶縁処理が施された後、この接続部３はコイル
エンド４の表面又は、内部の適当な位置に置かれ
る。この場合、接続部３の絶縁処理作業が必要に
なり、又これをコイルエンド４の表面又は、内部
に置く為の煩雑な作業が必要になるばかりでな
く、リード線２のコイルエンド４の立ち上り位置
５から外部電源接続部６までの寸法決め作業も煩
雑であつた。又、接続部３をコイルエンド４の表
面又は内部に置いた後コイルエンド４を形成した
時に、接続部３の絶縁が破壊されて、コイルエン
ド４とシヨートする可能性もあり、結果的に高価
で低品質の回転電気機器固定子となつてしまう。 FIG. 1 shows a perspective view of a stator for rotating electrical equipment that has been commonly used in the past. The end 1 of the coil to be connected and the lead wire 2 can be connected by soldering, crimping,
After being connected by a method such as caulking with a terminal and subjected to appropriate insulation treatment, the connecting portion 3 is placed on the surface of the coil end 4 or at an appropriate position inside the coil end 4. In this case, not only is it necessary to insulate the connection part 3, but also the complicated work of placing it on the surface or inside of the coil end 4, the rise of the coil end 4 of the lead wire 2 is not only necessary. The work of determining dimensions from the position 5 to the external power supply connection part 6 was also complicated. Furthermore, when forming the coil end 4 after placing the connection part 3 on the surface or inside of the coil end 4, there is a possibility that the insulation of the connection part 3 will be broken and the connection part 3 will be shot with the coil end 4, resulting in high cost. This results in a low-quality rotating electrical equipment stator.

以上の様な問題を改良するために、第２図に示
す様な方法が考えられている。すなわち、接続む
べきコイルの端１とリード線２を半田付け、溶接
又は圧着端子によるかしめ等の方法により接続
し、この接続部分３を機械的に保持し、かつ接続
部分３相互とコイルエンド４とを電気的に絶縁出
来るボツクス７に固定し、このボツクス７をコイ
ルエンド４の表面に縛り糸８にて固定する。これ
以後必要な場合はコイルワニス処理を行う。この
様にすることにより、接続部３はボツクス７に固
定される為、絶縁処理を特に行なう必要がなくな
り、又リード線２のコイルエンド４から外部電源
接続部分６までの寸法決め作業や接続部３とコイ
ルの端１との位置決め作業が非常に簡単になるだ
けでなく、接続部３が直接コイルエンド４の表面
又は内部に置かれない為にコイルエンド４の成形
時にシヨートする可能性も無くなり結果的に安価
で、高品質の回転電気機器固定子が得られる。又
第２図の構造の改良として、ボツクス７を固定子
鉄心９に固定する際、固定子鉄心９の表面に適当
な寸法の蟻溝凹部１０を設け、前記ボツクス７の
一部にこの凹部１０に対応した蟻ほぞ凸部１０ａ
を設ける事により、この両者を嵌合してボツクス
７を固定子鉄心９に固定する第３図に示す方式も
考え出された。 In order to improve the above-mentioned problems, a method as shown in FIG. 2 has been considered. That is, the end 1 of the coil to be connected and the lead wire 2 are connected by a method such as soldering, welding, or caulking with a crimp terminal, and this connecting portion 3 is mechanically held, and the connecting portion 3 and the coil end 4 are are fixed to a box 7 which can be electrically insulated, and this box 7 is fixed to the surface of the coil end 4 with a tying thread 8. After this, if necessary, perform coil varnish treatment. By doing this, the connection part 3 is fixed to the box 7, so there is no need for special insulation treatment, and there is no need to carry out dimensioning work or connection work from the coil end 4 of the lead wire 2 to the external power connection part 6. Not only does the positioning work between 3 and the end 1 of the coil become very easy, but since the connecting part 3 is not placed directly on or inside the coil end 4, there is no possibility of it being shot when forming the coil end 4. As a result, a low cost, high quality rotating electrical equipment stator is obtained. Further, as an improvement to the structure shown in FIG. 2, when fixing the box 7 to the stator core 9, a dovetail recess 10 of an appropriate size is provided on the surface of the stator core 9, and a part of the box 7 is provided with a dovetail recess 10. Dovetail tenon convex portion 10a corresponding to
A method as shown in FIG. 3 was also devised in which the box 7 is fixed to the stator core 9 by providing the box 7 and the stator core 9 by fitting the two together.

ところが、上記のような構造ではボツクス７に
接続部３を確実に固定するために、リード線２の
ボツクス７に近い部分をコイルエンド４に固定し
たり、ボツクス７内部の接続部３を収納するため
の空間を必要最小限にする必要があり、結果的に
工数がかかつしまうばかりでなくボツクス７をコ
イルエンド４に固定するためには第２図に示す様
にボツクス７とコイルエンド４を縛り糸８で縛り
つける等の工数がかかる。さらにボツクス７とコ
イルエンド４との両者を所定の位置に確実に固定
するのがむずかしい等の欠点もあつた。 However, in the above structure, in order to securely fix the connection part 3 to the box 7, it is necessary to fix the part of the lead wire 2 near the box 7 to the coil end 4, or to store the connection part 3 inside the box 7. It is necessary to minimize the space for the box 7 and the coil end 4 as shown in Fig. 2, which not only increases the number of man-hours but also requires a It takes a lot of man-hours to tie it up with the tying thread 8. Further, there were other drawbacks such as the difficulty of securely fixing both the box 7 and the coil end 4 in a predetermined position.

また、ボツクス７を固定子鉄心９に凹凸のはめ
合せにより固定する方式は、ボツクス７とコイル
エンド４の両者を所定の位置に固定することは出
来るが、一般的に固定子鉄心９がボツクス７を保
持する保持力は弱いものであり、十分な機械的強
度が得られなかつた。さらに、ボツクス７に接続
部３を確実に固定するための工数は前述と同様に
多くなつてしまう。 In addition, in the method of fixing the box 7 to the stator core 9 by fitting the concave and convex portions, both the box 7 and the coil end 4 can be fixed in a predetermined position, but generally the stator core 9 is attached to the box 7. The holding force for holding was weak, and sufficient mechanical strength could not be obtained. Furthermore, the number of man-hours required to securely fix the connecting portion 3 to the box 7 increases as described above.

本考案は、上記の欠点を改善して、接続部を確
実に固定し機械的強度が大きく、工数のかからな
い安価な回転電気機器の固定子を提供しようとす
るものである。以下、本考案の一実施例を図面に
従つて説明する。 The present invention aims to improve the above-mentioned drawbacks and provide an inexpensive stator for rotating electrical equipment that securely fixes the connection parts, has high mechanical strength, and requires no man-hours. An embodiment of the present invention will be described below with reference to the drawings.

第４図は本考案の一実施例による合成樹脂製ボ
ツクス７の斜視図である。 FIG. 4 is a perspective view of a synthetic resin box 7 according to an embodiment of the present invention.

このボツクス７に設けた複数本の溝１１は、接
続すべきコイルの端１とリード線２を通す為のも
のであり、両者の接続部３は溝１１に連続して設
けられた溝よりも大径な穴１２に固定される。更
に、コイルの端１とリード線２との接続部３を確
実に固定し、他から絶縁するためにボツクス７の
開口部をフタ１３で閉めるようにする。このフタ
１３を確実に閉める為に開き止め用フツク１４を
フタ１３に設けこのフツク１４に対応した引つか
かり部１５をボツクス７に設ける。 The plurality of grooves 11 provided in this box 7 are for passing the end 1 of the coil to be connected and the lead wire 2. It is fixed in a large diameter hole 12. Further, the opening of the box 7 is closed with a lid 13 in order to securely fix the connection 3 between the end 1 of the coil and the lead wire 2 and insulate it from others. In order to securely close the lid 13, a locking hook 14 is provided on the lid 13, and a hook 15 corresponding to the hook 14 is provided on the box 7.

更に、ボツクス７を固定子鉄心９の蟻溝凹部１
０に固定する為の幅せまい足１６を一体に設け、
この足１６には抜け止め防止用のクサビ１７を設
ける。第５図は第４図の−′線に沿つた断面
図である。又第６図に固定子鉄心９と足１６およ
びそのクサビ１７との関係を示す。第６図は固定
子鉄心９の蟻溝凹部１０にボツクス７の足１６を
挿入した状態を示す。この状態でクサビ１７を足
１６のこれと対応する部分に設けられたクサビよ
りもわずかに幅せまい空間１８に押し込む事によ
り足の左右両側が膨らんで固定子鉄心９の蟻溝凹
部１０とボツクス７の足１６との結合が確実にな
り、機械的強度が飛躍的に向上する。第７図は第
６図の−線に沿つた足部分の断面図である。 Furthermore, the box 7 is inserted into the dovetail groove recess 1 of the stator core 9.
A narrow foot 16 for fixing at 0 is integrally provided,
This leg 16 is provided with a wedge 17 to prevent it from coming off. FIG. 5 is a sectional view taken along the line -' in FIG. 4. Further, FIG. 6 shows the relationship between the stator core 9, the leg 16, and its wedge 17. FIG. 6 shows a state in which the legs 16 of the box 7 are inserted into the dovetail recesses 10 of the stator core 9. In this state, by pushing the wedge 17 into a space 18 that is slightly narrower than the wedge provided in the corresponding part of the leg 16, the left and right sides of the leg bulge, and the dovetail groove recess 10 of the stator core 9 and the box 7 are expanded. The connection with the legs 16 is ensured, and the mechanical strength is dramatically improved. FIG. 7 is a sectional view of the foot portion taken along the line - in FIG. 6.

第８図は本考案の一実施例による回転電気機器
固定子の完成図を示し、ボツクス７はクサビ１７
が押し込まれた足１６が固定子鉄心９の蟻溝凹部
１０に強く固定されている為、機械的強度が大き
くなる。また、接続すべきコイルの端１、リード
線２はいずれも前述した如くボツクス７内の溝１
１に固定され、両者の接続部３は穴１２に固定さ
れる。ここで、コイルの端１とリード線２の総合
断面積よりも両者の接続部３の断面積の方が必ら
ず大きくなる為、溝１１と穴１２の寸法を適当に
選ぶことにより、コイルの端１とリード線２と接
続部３は溝１１を通つて絶対に抜けなくなり、ボ
ツクス７に保持される。更にフタ１３を閉めるこ
とにより、コイルの端１、リード線２両者の接続
部分３およびボツクス７の相互の機械的強度の向
上と共にそれぞれのコイルの端１・接続部３相互
と固定子鉄心を含むアース間に確実な絶縁を得る
ことができる。 FIG. 8 shows a completed diagram of a stator for rotating electrical equipment according to an embodiment of the present invention, in which box 7 is a wedge 17.
Since the leg 16 into which the stator core 9 is pushed is firmly fixed to the dovetail recess 10 of the stator core 9, the mechanical strength is increased. The end 1 of the coil to be connected and the lead wire 2 are both connected to the groove 1 in the box 7 as described above.
1 , and the connecting portion 3 of both is fixed in the hole 12 . Here, since the cross-sectional area of the connecting part 3 between the end 1 of the coil and the lead wire 2 is necessarily larger than the total cross-sectional area of the end 1 of the coil and the lead wire 2, by appropriately selecting the dimensions of the groove 11 and the hole 12, the coil The end 1, the lead wire 2, and the connecting portion 3 will never come out through the groove 11 and are held in the box 7. Furthermore, by closing the lid 13, the mutual mechanical strength of the coil end 1, the connection part 3 between the lead wire 2 and the box 7 is improved, and the mutual mechanical strength of the coil end 1, the connection part 3 of each coil, and the stator core are improved. Reliable insulation between earths can be obtained.

上記のように本考案によれば接続すべきコイル
の端、リード線およびこの両者の接続部が確実に
固定されるばかりでなく、コイルの端、リード線
この両者の接続部、ボツクスおよび固定子鉄心の
相互の機械的強度が大きくなると共に、ボツクス
の固定工数も少なくてすみ、結果的に安価で高品
質の回転電気機器固定子を提供することが出来
る。 As described above, according to the present invention, not only the end of the coil to be connected, the lead wire, and the connection between the two are securely fixed, but also the end of the coil, the connection between the lead wire, the box, and the stator. The mutual mechanical strength of the iron core is increased, and the number of man-hours required for fixing the box is reduced, and as a result, an inexpensive and high-quality stator for rotating electric equipment can be provided.

又、コイルの端とリード線の溝１１内での固定
を更に強固にする為に、第９図に示す様に溝１１
の内壁にくい込み凸部１９を設け、この凸部をコ
イルの端及びリード線にそれぞれくい込ませれ
ば、確実な固定が得られる。 In addition, in order to further secure the end of the coil and the lead wire within the groove 11, the groove 11 is fixed as shown in FIG.
By providing a convex portion 19 that is inserted into the inner wall of the coil and inserting the convex portion into the end of the coil and the lead wire, reliable fixation can be obtained.

このように本考案は、コイルの端とリード線と
を内部に導入できる複数の溝と、この各溝に連な
り前記コイルの端とリード線との接続部を固定す
る穴とを設け、さらにこの溝および穴の開口部を
閉じるフタを有した合成樹脂製の絶縁性ボツクス
に、固定子鉄心の蟻溝凹部に入り込む足と、固定
用クサビとこのクサビが押し込められる空間とを
設けて、前記蟻溝凹部にボツクスの足を確実に固
定したものであるから、作業性よく安価に回転電
気機器固定子を得ることができるという利点があ
る。 As described above, the present invention includes a plurality of grooves into which the ends of the coil and the lead wire can be introduced, and holes that are connected to each groove and fix the connecting portion between the end of the coil and the lead wire. An insulating box made of synthetic resin with a lid that closes the openings of the grooves and holes is provided with legs that fit into the dovetail groove recess of the stator core, a fixing wedge, and a space into which the wedge is pushed. Since the legs of the box are securely fixed in the groove recesses, there is an advantage that a stator for rotating electric equipment can be obtained with good workability and at low cost.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図、第２図はこれまでの回転電気機器固定
子の斜視図、第３図は固定子鉄心とリード線接続
部を固定するボツクスとのこれまでの固定構造を
示す斜視図、第４図は本考案の回転電気機器固定
子に用いた絶縁性ボツクスの一例を示す斜視図、
第５図は第４図の−′線に沿つた断面図、第
６図は固定子鉄心にボツクスを固定する際の斜視
図、第７図は第６図の−′線に沿つたボツク
ス足の断面図、第８図はボツクスが固定された本
考案の固定子の一例を示す斜視図、第９図はボツ
クスのコイル端及びリード線を導入する溝部の他
の一例を示す斜視図である。 １……コイルの端、２……リード線、３……接
続部、７……電気絶縁性のボツクス、９……固定
子鉄心、１０……蟻溝凹部、１０ａ……蟻ほぞ凸
部、１１……コイルの端およびリード線を導入す
る溝、１２……接続部を保持する穴、１３……フ
タ、１６……足、１７……クサビ、１８……クサ
ビが押し込まれる空間、１９……くい込み凸部。 Figures 1 and 2 are perspective views of conventional rotary electric equipment stators, Figure 3 is a perspective view showing a conventional fixing structure between the stator core and a box for fixing lead wire connections, and Figure 4 is a perspective view of a conventional stator for rotating electric equipment. The figure is a perspective view showing an example of an insulating box used in the stator of a rotating electrical equipment of the present invention.
Figure 5 is a sectional view taken along the -' line in Figure 4, Figure 6 is a perspective view of the box being fixed to the stator core, and Figure 7 is a cross-sectional view taken along the -' line in Figure 6. 8 is a perspective view showing an example of the stator of the present invention to which the box is fixed, and FIG. 9 is a perspective view showing another example of the groove portion for introducing the coil end of the box and the lead wire. . DESCRIPTION OF SYMBOLS 1... end of coil, 2... lead wire, 3... connection part, 7... electrically insulating box, 9... stator core, 10... dovetail groove recess, 10a... dovetail tenon protrusion, 11... Groove for introducing the end of the coil and the lead wire, 12... Hole for holding the connection part, 13... Lid, 16... Leg, 17... Wedge, 18... Space into which the wedge is pushed, 19... ...Convex part that bites in.

Claims (1)

【実用新案登録請求の範囲】 (1) コイルの端とリード線との接続部を保持して
この接続部相互間および接続部と固定子鉄心を
含むアースとの間を電気的に隔離する電気絶縁
性のボツクスを固定子鉄心に固定した回転電気
機器固定子において、前記絶縁性ボツクスには
前記コイルの端とリード線とを導入できる複数
の溝と、各溝にそれぞれ連通して設けられ前記
接続部を抜け出すことのないよう保持する穴
と、この溝および穴の開口側を閉じるフタと、
前記固定子鉄心に設けた蟻溝凹部に嵌入する足
と、この足に設けた空間に押し込まれて前記凹
部内で足の一部を膨出させ凹部に固定するクサ
ビとを設けてなる回転電気機器固定子。 (2) 前記ボツクスのコイルの端とリード線とを導
入できる溝が、その内壁に前記リード線にくい
込む突部を有している実用新案登録請求の範囲
第１項に記載の回転電気機器固定子。[Claims for Utility Model Registration] (1) Electricity that holds the connection between the end of the coil and the lead wire and electrically isolates the connection between each other and between the connection and the ground including the stator core. In a stator for rotating electric equipment in which an insulating box is fixed to a stator core, the insulating box has a plurality of grooves into which the end of the coil and the lead wire can be introduced, and the groove is provided in communication with each groove. a hole for holding the connection part so that it does not slip out; a lid for closing the opening side of the groove and the hole;
A rotating electrical machine comprising a leg that fits into a dovetail recess provided in the stator core, and a wedge that is pushed into the space provided in the leg to bulge a part of the leg within the recess and fix it in the recess. equipment stator. (2) The rotating electrical equipment fixing according to claim 1, wherein the groove into which the end of the coil of the box and the lead wire can be introduced has a protrusion on its inner wall into which the lead wire is inserted. Child.