JPH0521950Y2 - - Google Patents
Info
- Publication number
- JPH0521950Y2 JPH0521950Y2 JP1987118739U JP11873987U JPH0521950Y2 JP H0521950 Y2 JPH0521950 Y2 JP H0521950Y2 JP 1987118739 U JP1987118739 U JP 1987118739U JP 11873987 U JP11873987 U JP 11873987U JP H0521950 Y2 JPH0521950 Y2 JP H0521950Y2
- Authority
- JP
- Japan
- Prior art keywords
- winding
- stator
- teeth
- stator core
- core
- 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 - Lifetime
Links
- 238000004804 winding Methods 0.000 claims description 43
- 238000003475 lamination Methods 0.000 claims description 24
- 238000010030 laminating Methods 0.000 claims description 3
- 230000000379 polymerizing effect Effects 0.000 claims description 2
- 239000012212 insulator Substances 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000004080 punching Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920006334 epoxy coating Polymers 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案はステータコアに関する。[Detailed explanation of the idea] [Industrial application field] The present invention relates to a stator core.
一般に、ブラシレスモータ等に使用するステー
タのステータコアは、鋼板等をプレス加工にて所
定形状に打抜き、これを重合積層したものが使用
される。そして、このステータコアのテイースに
巻線を巻設してステータが形成される。
Generally, the stator core of a stator used in a brushless motor or the like is made by punching a steel plate or the like into a predetermined shape by press working, and then polymerizing and laminating the cores. Then, windings are wound around the teeth of the stator core to form a stator.
しかして、このステータコアに、巻線を巻設す
る場合、第１０図に示す様に、一つのテイースａ
に巻線ｂを巻設し、その後、他のテイースｃに該
巻線ｂを巻設してゆくものであるが、この場合、
該巻線ｂわたり部ｄが該巻線ｂの張力により、図
例の如く、このステータコアｅの中心孔ｆ内に入
つたり、該テイースａ，ｃ間のスロツトｇ内に入
つたりする場合があり、わたり部ｄが中心孔ｆ内
に入つた場合、ロータと干渉する虞があり、ま
た、わたり部ｄがスロツトｇ内に入つた場合、上
記両テイースａ，ｃ間の別のテイースｈに巻線を
巻設するときに、このわたり部ｄが邪魔になり自
動巻きができない等の問題点が生じた。従つて、
このわたり部が邪魔にならないように、従来か
ら、ステータコアを絶縁するために使用される合
成樹脂製のインシユレータに凸部を設けてこれを
利用していた。つまり、この凸部にわたり部ｄを
係止させて、該わたり部ｄが中心孔ｆ内に入り込
まず、かつ、テイースｈ…に巻線を巻設する場合
に邪魔とならないようにしていた。しかし、この
場合、インシユレータを必要として、部品点数が
増加し、コスト高となり、インシユレータを付設
することによつて、モータを小型・薄型化するう
えで障害となつていた。 Therefore, when winding wires are wound around this stator core, as shown in FIG.
The winding b is wound around the teeth c, and then the winding b is wound around the other teeth c, but in this case,
When the crossing portion d of the winding b enters the center hole f of the stator core e or the slot g between the teeth a and c, as shown in the illustration, due to the tension of the winding b. If the crossing part d enters the center hole f, there is a risk of interference with the rotor, and if the crossing part d enters the slot g, another tooth h between the teeth a and c may When winding the winding wire, this crossing portion d gets in the way, causing problems such as automatic winding being impossible. Therefore,
Conventionally, in order to prevent this crossing portion from getting in the way, a convex portion has been provided on a synthetic resin insulator used to insulate the stator core. In other words, the portion d is locked across this convex portion so that the crossing portion d does not enter into the center hole f and does not become an obstacle when winding the winding around the teeth h. However, in this case, an insulator is required, which increases the number of parts and increases costs, and the addition of an insulator poses an obstacle to making the motor smaller and thinner.
なお、第１０図のステータコアは、インナーロ
ータ型のモータに使用されるものであるが、アウ
ターロータ型のモータに使用されるステータコア
として、従来、実開昭56−96866号のものが公知
であつた。このステータコアにおいては、片側の
最外層に相当するステータラミネーシヨンの一部
を、切り起こすことによつて切起し片を形成し、
巻線わたり部を該切起し片の外面に添わせて、ス
テータコアの中心孔内へ入り込まないようにして
いた。ところが、このような切起し片では、ステ
ータラミネーシヨンの有効磁路面の一部を切り起
こすことになるため、磁気抵抗が大きくなつてし
まう問題があつた。 The stator core shown in Fig. 10 is used for an inner rotor type motor, but the stator core disclosed in Utility Model Application No. 56-96866 was previously known as a stator core used for an outer rotor type motor. Ta. In this stator core, a cut and raised piece is formed by cutting and raising a part of the stator lamination corresponding to the outermost layer on one side,
The winding crossing portion was placed along the outer surface of the cut and raised piece to prevent it from entering the center hole of the stator core. However, with such a cut and raised piece, a part of the effective magnetic path surface of the stator lamination is cut and raised, resulting in a problem of increased magnetic resistance.
そこで、本考案では、コスト高とならず、従来
と同等の有効磁路面を確保した上で、巻線わたり
部が邪魔にならないように自動巻きが可能なステ
ータコアを提供することを目的とする。 Therefore, an object of the present invention is to provide a stator core that does not increase costs, secures the same effective magnetic path surface as the conventional one, and can be automatically wound so that the winding crossing portion does not get in the way.
本考案のステータコアは、複数枚のステータラ
ミネーシヨンが重合積層されてなるステータコア
であつて、両側又は片側の最外層に相当するステ
ータラミネーシヨンの各スロツト形成用凹所の内
縁奥部に突出形成した突出片を、該スロツト形成
用凹所の内周端縁に沿つた線を折り目として起立
させて、テイース間の巻線わたり部が係止する起
立片部を、上記内周端縁に沿つて起立状に突設し
たものである。
The stator core of the present invention is a stator core formed by laminating a plurality of stator laminations, and has a stator core formed protruding from the inner edge of each slot forming recess of the stator lamination corresponding to the outermost layer on both sides or one side. The protruding piece is made to stand up with a line along the inner circumferential edge of the slot forming recess as a crease, and the upright piece part where the winding crossing part between the teeth is locked is made to stand along the inner circumferential edge. It is installed in an upright manner.
上述の如く構成すれば、巻線をスロツト間のテ
イースに巻設する場合、各テイース間の巻線わた
り部を起立片部の外面側に係止させれば、該わた
り部は、最外層のどちらか一方のステータラミネ
ーシヨンの外周面と起立片部との間に介在される
ことになり、該わたり部は、ステータコアの中心
孔には入り込まないのは勿論のこと、巻設される
テイース間のスロツト内に入り込まない。
With the above-described configuration, when windings are wound around the teeth between the slots, if the winding bridge portion between each tooth is engaged with the outer surface of the standing piece, the bridge portion will be interposed between the outer peripheral surface of one of the stator laminations in the outermost layer and the standing piece, and the bridge portion will not enter the central hole of the stator core, nor will it enter the slots between the teeth to be wound.
また、両側又は片側の最外層に相当するステー
タラミネーシヨンの各スロツト形成用凹所の内縁
奥部に突出形成した突出片を、該スロツト形成用
凹所の内周端縁に沿つた線を折り目として起立さ
せて、起立片部を突設しているので、ステータラ
ミネーシヨンの有効磁路面が、従来と同等に確保
される。 In addition, a protruding piece formed protruding from the inner edge of each slot forming recess of the stator lamination corresponding to the outermost layer on both sides or one side is attached to a line along the inner peripheral edge of the slot forming recess. Since the stator lamination is made to stand upright and the upright piece is provided protrudingly, the effective magnetic path surface of the stator lamination can be secured at the same level as in the conventional case.
以下、実施例を示す図面に基づいて本考案を詳
説する。
Hereinafter, the present invention will be explained in detail based on drawings showing embodiments.
第１図と第２図と第３図は本考案に係るステー
タコアを示し、このコアは、インナーロータ型の
モータに使用されるものであつて、複数枚のステ
ータラミネーシヨン１…が重合積層されてなり、
全体が略円環状とされている。そして、このステ
ータラミネーシヨン１は、ケイ素鋼等の磁性材か
らなる薄板をプレス加工にて所定形状に打抜いて
形成するものである。即ち、中心孔２ａの周縁部
に、重合積層されたときにスロツト３となるスロ
ツト形成用凹所３ａが形成されるように打抜かれ
る。従つて、このステータラミネーシヨン１が重
合積層されれば、ステータコア軸心孔２の周縁部
にスロツト３が形成されて、第２図に示す様に、
巻線４が巻設されるテイース５…が形成されるこ
とになる。 FIGS. 1, 2, and 3 show a stator core according to the present invention, which is used in an inner rotor type motor, and is composed of a plurality of stator laminations 1... Then,
The whole is approximately circular. The stator lamination 1 is formed by punching a thin plate made of a magnetic material such as silicon steel into a predetermined shape by press working. That is, punching is performed so that a slot forming recess 3a, which becomes the slot 3 when stacked together, is formed at the peripheral edge of the center hole 2a. Therefore, when the stator laminations 1 are laminated together, a slot 3 is formed at the periphery of the stator core shaft hole 2, as shown in FIG.
Teeth 5 around which the winding 4 is wound are formed.
しかして、両最外層に相当するステータラミネ
ーシヨン１，１のスロツト形成用凹所３ａ，３ａ
の内縁奥部に、夫々、テイース５，５間の巻線４
わたり部１０が係止する起立片部７，７が、突設
されている。具体的には、両側又は片側の最外層
に相当するステータラミネーシヨン１の各スロツ
ト形成用凹所３ａの内縁奥部に突出形成した（起
立片部７用の）突出片を、該スロツト形成用凹所
３ａの内周端縁に沿つた線を折り目として起立さ
せて、起立片部７を上記内周端縁に沿つて起立状
に突設する。また、このコアはエポキシコーテイ
ング等の絶縁コーテイングがなされ、表面に絶縁
層が形成されている。 Therefore, the slot forming recesses 3a, 3a of the stator laminations 1, 1 corresponding to both outermost layers
The windings 4 between the teeth 5 and 5 are located deep inside the teeth 5 and 5, respectively.
Upright pieces 7, 7, to which the crossing portion 10 is engaged, are provided in a protruding manner. Specifically, a protruding piece (for the upright piece 7) formed protruding from the inner edge of each slot-forming recess 3a of the stator lamination 1 corresponding to the outermost layer on both sides or one side is used as the slot-forming recess 3a. A line along the inner circumferential edge of the recess 3a is made to stand up as a fold, and the upright piece portion 7 is provided in an upright manner to protrude along the inner circumferential edge. Further, this core is coated with an insulating coating such as epoxy coating, and an insulating layer is formed on the surface.
そして、このように構成されたステータコア
に、巻線４を巻設するには、巻線４が繰出される
ニードル８（第６図と第７図参照）を、スロツト
３内に入れ、該ニードル８を、相隣位するスロツ
ト３，３間において回転させて、第４図に示す様
に該スロツト３，３間のテイース５に巻線４を巻
設する。そして、このテイース５への巻線４の巻
設が終了すれば、コアの外方からのフツク部材９
にて巻線４を係止し、該巻線４を外方へ引張りな
がら、このコアを矢印Ａの如く軸心廻りに回転さ
せて、ニードル８を次に巻設するテイースに対応
させる。この場合、第５図に示す様に、巻線４の
わたり部１０を、起立片部７，７の外面に添わせ
て張設する。次に、巻線４に係止しているフツク
部材９を外し、上述の如く、ニードル８をこのテ
イース５を形成しているスロツト３，３間におい
て回転させて、このテイース５に巻線４を巻設す
る。このようにして、順次、コアを回転させなが
ら、巻設すべきテイース５に巻線４を巻設してゆ
けば、このコアの全テイース５…に巻線４を巻設
することができるものであつて、自動巻きが可能
となる。 To wind the winding 4 around the stator core configured in this way, the needle 8 (see FIGS. 6 and 7) from which the winding 4 is fed out is inserted into the slot 3, and the needle 8 is inserted into the slot 3. 8 is rotated between the adjacent slots 3, 3, and the winding 4 is wound around the teeth 5 between the slots 3, 3, as shown in FIG. When winding of the winding 4 on the teeth 5 is completed, the hook member 9 is attached from the outside of the core.
The winding 4 is locked at the core, and while pulling the winding 4 outward, the core is rotated around the axis as shown by arrow A, so that the needle 8 corresponds to the tooth to be wound next. In this case, as shown in FIG. 5, the crossing portion 10 of the winding 4 is stretched along the outer surfaces of the upright pieces 7, 7. Next, the hook member 9 that is locked to the winding 4 is removed, and as described above, the needle 8 is rotated between the slots 3 and 3 that form this tooth 5, and the winding 4 is attached to this tooth 5. wind it. In this way, by sequentially rotating the core and winding the winding 4 around the teeth 5 to be wound, the winding 4 can be wound around all the teeth 5 of this core. Therefore, automatic winding is possible.
従つて、上述の如く、巻線４が巻設されれば、
第２図の仮想線で示す様に、最外層のどちらか一
方のステータラミネーシヨン１の外周面１１と起
立片部７との間に介在されることになり、巻線４
わたり部１０はコアの中心孔２には入り込まない
のは勿論のことスロツト３内にも入り込まない。
つまり、スロツト３内に形成された補極用等の小
テイース１２に巻線４を巻設する場合、邪魔にな
らない。 Therefore, if the winding 4 is wound as described above,
As shown by the imaginary line in FIG.
The crossing portion 10 does not fit into the center hole 2 of the core, nor does it fit into the slot 3.
That is, when the winding 4 is wound around the small teeth 12 for a commutating pole formed in the slot 3, it does not get in the way.
次に、第８図は他の実施例を示し、この場合の
コアは、アウターロータ型のモータに使用される
ものであつて、外周面１１にスロツト形成用凹所
３ａ…が形成されたステータラミネーシヨン１…
を重合積層してなり、この場合も、両最外層に相
当するステータラミネーシヨン１，１のスロツト
形成用凹所３ａの内縁奥部に、夫々、起立片部
７，７が突設されている。なお、この起立片部７
は次のようにして形成する。即ち、両側又は片側
の最外層に相当するステータラミネーシヨン１の
各スロツト形成用凹所３ａの内縁奥部に突出形成
した（起立片部７用の）突出片を、該スロツト形
成用凹所３ａの内周端縁に沿つた線を折り目とし
て起立させて、起立片部７を上記内周端縁に沿つ
て起立状に形成する。また、このコアも、エポキ
シコーテイング等がなされ、表面に絶縁層が形成
される。 Next, FIG. 8 shows another embodiment, in which the core is a stator used in an outer rotor type motor, in which slot forming recesses 3a are formed in the outer peripheral surface 11. Lamination 1...
In this case, the stator laminations 1, 1 corresponding to the two outermost layers have upstanding pieces 7, 7 protruding from the inner edges of the slot forming recesses 3a, respectively. . In addition, this standing piece part 7
is formed as follows. That is, a protruding piece (for the upright piece 7) formed protruding from the inner edge of each slot forming recess 3a of the stator lamination 1 corresponding to the outermost layer on both sides or one side is attached to the slot forming recess 3a. The line along the inner circumferential edge is made to stand up as a crease, and the upright piece portion 7 is formed in an upright shape along the inner circumferential edge. Further, this core is also coated with epoxy, and an insulating layer is formed on the surface.
従つて、このコアに、巻線４を巻設する場合、
上述の如く、わたり部１０を起立片部７の外面に
添わせて張設すれば、該わたり部１０は中心孔２
に入り込まない。 Therefore, when winding 4 is wound around this core,
As described above, if the crossing portion 10 is stretched along the outer surface of the upright piece portion 7, the crossing portion 10 will fit into the center hole 2.
Don't get into it.
なお、本考案は図示の実施例に限定されず、本
考案の要旨を逸脱しない範囲で設計変更自由であ
り、例えば、最外層に相当するステータラミネー
シヨンの一方のみに起立片部７…を形成するも自
由であり、また、テイース５の数（つまり、スロ
ツト３の数）は、増減自由である。 Note that the present invention is not limited to the illustrated embodiment, and the design may be changed without departing from the gist of the present invention. For example, it is possible to form the standing piece portion 7 only on one side of the stator lamination corresponding to the outermost layer. The number of teeth 5 (that is, the number of slots 3) can be increased or decreased as desired.
本考案のステータコアは、巻線４を巻設した場
合、最外層のどちらか一方のステータラミネーシ
ヨン１の外周面１１と起立片部７との間に介在さ
れることになり、該わたり部１０は、このステー
タコアの中心孔２には入り込まないのは勿論のこ
と、巻設されるテイース５，５間のスロツト３内
にも入り込まなくなり、両テイース５，５間のテ
イース１２に巻線４を巻設する場合、該わたり部
１０は邪魔にならず、さらに、コアの中心孔２に
ロータを内挿し、又は、モータブラケツトを嵌合
する場合にわたり部１０が邪魔にならない。従つ
て、インシユレータを用いることなく巻線４の自
動巻が実現出来る。
In the stator core of the present invention, when the winding 4 is wound, the stator core is interposed between the outer circumferential surface 11 of either one of the outermost stator laminations 1 and the upright piece portion 7, and the crossing portion 10 Of course, the winding 4 does not enter the center hole 2 of the stator core, and also does not enter the slot 3 between the teeth 5 and 5 to be wound. When winding, the crossing portion 10 does not get in the way, and furthermore, when the rotor is inserted into the center hole 2 of the core or when a motor bracket is fitted, the crossing portion 10 does not get in the way. Therefore, automatic winding of the winding 4 can be realized without using an insulator.
また、モータを小型・薄型化する場合、ステー
タコアを可能な限り小型・薄型化する必要がある
が、本考案に係るコアに、エポキシコーテイング
等の絶縁コーテイングを行えば、このコアは大き
くならずに絶縁されてインシユレータを使用する
必要がなくなり、小型・薄型化を図り得る。 In addition, when making a motor smaller and thinner, it is necessary to make the stator core as small and thin as possible, but if the core according to the present invention is coated with an insulating coating such as epoxy coating, this core will not become large. Since it is insulated, there is no need to use an insulator, and it can be made smaller and thinner.
さらに、両側又は片側の最外層に相当するステ
ータラミネーシヨン１の各スロツト形成用凹所３
ａの内縁奥部に突出形成した（起立片部７用の）
突出片を、該スロツト形成用凹所３ａの内周端縁
に沿つた線を折り目として起立させて、起立片部
７を上記内周端縁に沿つて起立状に突設している
ので、ステータラミネーシヨン１に、従来と同等
の有効磁路面を確保した上で、巻線４わたり部１
０の処理が行えて、磁気抵抗が大きくならない。
しかも、ステータラミネーシヨン１及び起立片部
７の製造は、容易かつ高能率に行うことが可能で
ある。 Furthermore, each slot forming recess 3 of the stator lamination 1 corresponds to the outermost layer on both sides or one side.
Formed protrudingly at the back of the inner edge of a (for the upright piece 7)
The protruding piece is made to stand up with a line along the inner circumferential edge of the slot forming recess 3a as a crease, and the upright piece part 7 is provided in an upright manner to protrude along the inner circumferential edge. After securing the same effective magnetic path surface as the conventional stator lamination 1,
0 processing can be performed and magnetic resistance does not increase.
Furthermore, the stator laminations 1 and the upright piece portions 7 can be manufactured easily and with high efficiency.
第１図は本考案の一実施例を示す斜視図、第２
図は平面図、第３図は第２図のＸ−Ｏ−Ｘ線拡大
断面図、第４図と第５図は夫々巻線の巻設方法を
説明する要部平面図、第６図は同要部断面図、第
７図は同要部側面図、第８図は他の実施例を示す
斜視図、第９図は第８図のＹ−Ｙ線拡大断面図で
ある。第１０図は従来例を示す平面図である。
１……ステータラミネーシヨン、３ａ……スロ
ツト形成用凹所、４……巻線、５……テイース、
７……起立片部、１０……わたり部。
Fig. 1 is a perspective view showing one embodiment of the present invention;
The figure is a plan view, Figure 3 is an enlarged sectional view taken along the line X-O-X in Figure 2, Figures 4 and 5 are plan views of main parts explaining the winding method, and Figure 6 is 7 is a side view of the same essential part, FIG. 8 is a perspective view showing another embodiment, and FIG. 9 is an enlarged sectional view taken along the line Y--Y in FIG. 8. FIG. 10 is a plan view showing a conventional example. 1... Stator lamination, 3a... Recess for slot formation, 4... Winding wire, 5... Teeth,
7... Standing piece part, 10... Crossing part.
Claims (1)
層されてなるステータコアであつて、 両側又は片側の最外層に相当するステータラミ
ネーシヨン１の各スロツト形成用凹所３ａの内縁
奥部に突出形成した突出片を、該スロツト形成用
凹所３ａの内周端縁に沿つた線を折り目として起
立させて、テイース５，５間の巻線４わたり部１
０が係止する起立片部７を、上記内周端縁に沿つ
て起立状に突設したことを特徴とするステータコ
ア。[Claims for Utility Model Registration] A stator core formed by polymerizing and laminating a plurality of stator laminations 1, and the inner edge of each slot forming recess 3a of the stator laminations 1 corresponding to the outermost layer on both sides or one side. The protruding piece formed protruding from the inner part is made to stand up with a line along the inner circumferential edge of the slot forming recess 3a as a crease, and the winding 4 crossing part 1 between the teeth 5, 5 is formed.
1. A stator core characterized in that an upright piece part 7 to which 0 is engaged is provided in an upright manner along the inner circumferential edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987118739U JPH0521950Y2 (en) | 1987-07-31 | 1987-07-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987118739U JPH0521950Y2 (en) | 1987-07-31 | 1987-07-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6425852U JPS6425852U (en) | 1989-02-14 |
| JPH0521950Y2 true JPH0521950Y2 (en) | 1993-06-04 |
Family
ID=31363347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987118739U Expired - Lifetime JPH0521950Y2 (en) | 1987-07-31 | 1987-07-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0521950Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4742418B2 (en) * | 2000-12-15 | 2011-08-10 | パナソニック株式会社 | Armature and motor using the armature |
| JP4615910B2 (en) * | 2004-06-29 | 2011-01-19 | サムソン エレクトロ−メカニックス カンパニーリミテッド． | Stator core, motor, and recording medium driving apparatus |
| JP5255602B2 (en) * | 2010-06-02 | 2013-08-07 | サムソン エレクトロ−メカニックス カンパニーリミテッド． | Stator core, motor, and recording medium driving apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5553157A (en) * | 1978-10-12 | 1980-04-18 | Kokusan Denki Co Ltd | Method of manufacturing stator for rotary electric machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6230451Y2 (en) * | 1979-12-24 | 1987-08-05 |
-
1987
- 1987-07-31 JP JP1987118739U patent/JPH0521950Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5553157A (en) * | 1978-10-12 | 1980-04-18 | Kokusan Denki Co Ltd | Method of manufacturing stator for rotary electric machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6425852U (en) | 1989-02-14 |
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