JP2008295235A - Production method for armature laminated core - Google Patents

Production method for armature laminated core Download PDF

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JP2008295235A
JP2008295235A JP2007139323A JP2007139323A JP2008295235A JP 2008295235 A JP2008295235 A JP 2008295235A JP 2007139323 A JP2007139323 A JP 2007139323A JP 2007139323 A JP2007139323 A JP 2007139323A JP 2008295235 A JP2008295235 A JP 2008295235A
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flat
conductors
laminated core
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Yusuke Hasuo
裕介 蓮尾
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Mitsui High Tec Inc
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a production method for an armature laminated core in which the magnet pole of the armature laminated core is helically wound by flat plate conductors without any manpower, the alignment and connection of the wound plate conductors are performed with high reliability and a coil composed of flat plate conductors are formed. <P>SOLUTION: The end portions of one sides 14, 15 in the width direction of a first and a second flat plate conductors 10, 11 with the same width, which are alternately and continuously arranged in a trapezoidal shape, are connected by bendable connecting parts 16, 17. The other sides 19, 20 of the first and the second flat plate conductors 10, 11 are formed with a group of connecting flat plate conductors 18 having the size corresponding to the length and width of an inner mold 22 respectively determined based on the laminated thickness and width of the magnet pole 21 from flat plate bars. The other side of the group of connecting flat plate conductors 18 is along the magnetic pole 21, the connecting parts 16, 17 are bended in succession, the group of connecting flat plate conductors 18 are helically wound around the magnet pole 21, and the point at which the adjacent first and second flat plate conductors 10, 11 meet is welded or brazed, thereby forming the coil. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、モータ又は発電機の固定子又は回転子に使用できる電機子積層鉄心の製造方法に関する。 The present invention relates to a method of manufacturing an armature laminated core that can be used for a stator or a rotor of a motor or a generator.

回転電機の電機子、例えば固定子積層鉄心には磁極にコイルが装着されている。磁極のコイルは通常この磁極に銅線を巻回することにより形成されているが、最近、例えば特許文献1に記載されているように、コイルの占積率をより高くして銅損を低減し、回転電機を効率化するため、あるいは小型化等のために、銅線に替えて平板導体にてコイルを形成するものがある。 A coil is mounted on a magnetic pole of an armature of a rotating electric machine, for example, a stator laminated core. The coil of the magnetic pole is usually formed by winding a copper wire around this magnetic pole. Recently, as described in Patent Document 1, for example, the coil space factor is increased to reduce copper loss. However, in order to improve the efficiency of the rotating electrical machine or reduce the size, there are some that form a coil with a flat conductor instead of a copper wire.

平板導体は銅板からL字状、コ字状、又は一部に分断部を設けたロ字状に切り出され、磁極を跨ぐ両側のスロットにこの平板導体を入れ、組み立てるのであるが、前記各形状に作られた平板導体同士を位置合わせした上で、電気的に接続する必要がある。図6には特許文献1に記載の回転電機の回転子コイルの製造方法を示すが、図6(A)に示すように導体板からプレス加工によって、複数のL字状の平板導体50を切り出し、図6(B)に示すように、これらを順次繋ぎ合わせて磁極に螺旋状にコイルを巻回して形成していた。 The flat plate conductor is cut out from a copper plate into an L shape, a U shape, or a B shape with a partly divided portion, and the flat plate conductor is inserted into the slots on both sides across the magnetic pole. It is necessary to electrically connect after aligning the flat conductors made in the above. FIG. 6 shows a method for manufacturing a rotor coil of a rotating electrical machine described in Patent Document 1. A plurality of L-shaped flat conductors 50 are cut out from a conductor plate by pressing as shown in FIG. As shown in FIG. 6B, these are sequentially connected and formed by winding a coil around the magnetic pole in a spiral.

特開2001−178052号公報JP 2001-178052 A

しかしながら、特許文献1に記載の方法では、コイルの形成に手間が掛かり、コスト高となるという問題がある。
また、各平板導体同士の位置合わせに熟練を要し、図6(C)に示すように、位置ずれに起因する抵抗値変化や、相間絶縁不良の発生、あるいはコイルエンド寸法の変化が懸念されるという問題がある。
However, the method described in Patent Document 1 has a problem that it takes a lot of time to form the coil, resulting in high costs.
Further, skill is required to align the flat conductors, and as shown in FIG. 6 (C), there is a concern that the resistance value may change due to misalignment, interphase insulation defects may occur, or the coil end dimensions may change. There is a problem that.

本発明はかかる事情に鑑みてなされたもので、電機子積層鉄心の磁極に平板導体を、手間を要さずに螺旋状に巻回し、また、巻回した平板導体の位置合わせ及び接続が信頼性高く行われる電機子積層鉄心の製造方法を提供することを目的とする。 The present invention has been made in view of such circumstances, and a flat conductor is wound around a magnetic pole of an armature laminated iron core in a spiral shape without requiring labor, and the alignment and connection of the wound flat conductor are reliable. It aims at providing the manufacturing method of the armature laminated core performed with high property.

前記目的に沿う第1の発明に係る電機子積層鉄心の製造方法は、鉄心片を積層し一体化してなる電機子積層鉄心の磁極に、平板導体同士を接続し巻回してコイルを形成する電機子積層鉄心の製造方法において、
それぞれ台形状となって交互かつ連続して配置された同一幅の第1、第2の平板導体を有し、隣り合う前記第1、第2の平板導体の幅方向の一方側の端部が折り曲げ可能な連結部で連結され、しかも前記第1、第2の平板導体の他方側はそれぞれ前記磁極の積層厚み及び幅に基づいて決定される内側型の縦横に対応する寸法となった連接平板導体群を平板条材から形成し、
前記連接平板導体群の他方側を前記電機子積層鉄心の磁極の前記内側型に沿わせ、前記連結部を順次屈曲して、前記連接平板導体群を前記磁極に前記内側型を介して螺旋状に巻回し、隣り合う前記第1、第2の平板導体が突き合う箇所を溶接又は鑞付けして、前記コイルを形成する。
According to the first aspect of the invention, the armature laminated core manufacturing method according to the first aspect of the invention is an electric machine in which a coil is formed by connecting and winding flat conductors to magnetic poles of an armature laminated core obtained by laminating and integrating core pieces. In the manufacturing method of the child laminated core,
Each of the first and second flat plate conductors having the same width, which are alternately and continuously arranged in a trapezoidal shape, has one end in the width direction of the adjacent first and second flat plate conductors. An articulated flat plate connected by a foldable connecting portion, and the other side of the first and second flat plate conductors has dimensions corresponding to the vertical and horizontal dimensions of the inner mold determined based on the laminated thickness and width of the magnetic poles. A conductor group is formed from a flat strip material,
The other side of the connecting plate conductor group is aligned with the inner mold of the magnetic poles of the armature laminated core, the connecting portion is sequentially bent, and the connecting plate conductor group is spiraled to the magnetic pole via the inner mold. The coil is formed by welding or brazing a portion where the adjacent first and second flat plate conductors abut each other.

この第1の発明に係る電機子積層鉄心の製造方法において、台形状となった前記第1、第2の平板導体の長手方向の両側には、前記連結部で折り曲げた場合に、直角に接合可能な切欠きを設けるのが好ましい。これによって、同一幅とした平板導体の端部を確実に連結できる。 In the method of manufacturing an armature laminated core according to the first aspect of the invention, the first and second flat plate conductors having a trapezoidal shape are joined at right angles to each other in the longitudinal direction when bent at the connecting portion. It is preferable to provide possible notches. Thereby, the edge part of the flat conductor made into the same width can be connected reliably.

また、第2の発明に係る電機子積層鉄心の製造方法は、鉄心片を積層し一体化してなる電機子積層鉄心の磁極に、平板導体同士を接続し巻回してコイルを形成する電機子積層鉄心の製造方法において、
同一幅の第1片及び第2片を有し、該第1片及び第2片の各内側辺が前記磁極の積層厚み及び幅に基づいて決定される内側型の縦横に対応する寸法となったL字状の前記平板導体を複数有し、複数の前記平板導体の幅方向の一方(即ち、外側辺)側の端部を折り曲げ可能な連結部で連結し、しかも前記第1片及び第2片の開放側端部には、前記連結部で折り曲げた場合に、直角に接合可能な切欠きが形成された連接平板導体群を平板条材から形成し、
前記連接平板導体群の各平板導体の内側辺を前記電機子積層鉄心の磁極に沿わせ、前記連結部を順次屈曲して、前記連接平板導体群を磁極に前記内側型を介して螺旋状に巻回し、隣り合う前記平板導体が突き合う箇所を溶接又は鑞付けして、前記コイルを形成する。
The armature laminated core manufacturing method according to the second aspect of the invention is an armature laminate in which flat conductors are connected to each other and wound around a magnetic pole of an armature laminated core obtained by laminating and integrating core pieces. In the manufacturing method of the iron core,
The first piece and the second piece have the same width, and the inner sides of the first piece and the second piece have dimensions corresponding to the length and breadth of the inner mold determined based on the lamination thickness and width of the magnetic poles. A plurality of the L-shaped flat conductors, and the ends of one of the flat conductors in the width direction (that is, the outer side) are connected by a foldable connecting portion, and the first piece and the first piece The open-side end of the two pieces is formed from a flat strip member with a connected flat conductor group formed with a notch that can be joined at a right angle when bent at the connecting portion,
The inner side of each flat conductor of the connected flat conductor group is aligned with the magnetic pole of the armature laminated core, the connecting portion is bent sequentially, and the connected flat conductor group is spiraled to the magnetic pole via the inner die. The coil is formed by winding and welding or brazing the place where the adjacent flat conductors meet.

そして、第3の発明に係る電機子積層鉄心の製造方法は、鉄心片を積層し一体化してなる電機子積層鉄心の磁極に、平板導体同士を接続し巻回してコイルを形成する電機子積層鉄心の製造方法において、
それぞれ同一幅で連結部で順次連結された、L字状の第1の平板導体、台形状の第1の平板導体、L字状の第2の平板導体及び台形状の第2の平板導体からなり、これら各平板導体の内側辺が、順次前記磁極の内側型の縦及び横の寸法を有し、更にこれら各平板導体を前記連結部で折り曲げた場合に、隣り合う前記各平板導体が直角に連接される切欠きを有する連接平板導体群を平板条材から形成し、
前記連接平板導体群の前記L字状の第1の平板導体、台形状の第1の平板導体、L字状の第2の平板導体及び台形状の第2の平板導体を前記連結部を折り曲げながら前記磁極に前記内側型を介して螺旋状に巻回し、隣り合う前記各平板導体が突き合う箇所を溶接又は蝋付けして、前記コイルを形成する。
And the manufacturing method of the armature laminated core which concerns on 3rd invention WHEREIN: The armature lamination which connects a flat conductor to the magnetic pole of the armature laminated core formed by laminating | stacking and integrating an iron core piece, and forms a coil In the manufacturing method of the iron core,
From the L-shaped first flat plate conductor, the trapezoidal first flat plate conductor, the L-shaped second flat plate conductor, and the trapezoidal second flat plate conductor, which are sequentially connected at the connecting portion with the same width. The inner sides of the respective flat conductors have the vertical and horizontal dimensions of the inner mold of the magnetic poles sequentially, and when the flat conductors are bent at the connecting portion, the adjacent flat conductors are perpendicular to each other. Forming a connecting flat conductor group having a notch connected to the flat strip material;
The L-shaped first flat conductor, the trapezoidal first flat conductor, the L-shaped second flat conductor, and the trapezoidal second flat conductor of the connected flat conductor group are bent at the connecting portion. On the other hand, the coil is formed by winding the magnetic pole spirally through the inner mold and welding or brazing the locations where the adjacent flat plate conductors abut each other.

以上の第1〜第3の発明に係る電機子積層鉄心の製造方法において、前記切欠きは、対となって係合する、45度傾斜辺、又は凸曲状辺及び凹曲状辺を備えているのが好ましい。
また、第1〜第3の発明に係る電機子積層鉄心の製造方法において、前記磁極は該電機子積層鉄心の各分割ヨークに設けられているのが好ましい。
In the manufacturing method of the armature laminated core according to the first to third inventions described above, the notch includes a 45-degree inclined side or a convex curved side and a concave curved side that engage with each other in pairs. It is preferable.
In the armature laminated core manufacturing method according to the first to third aspects of the invention, it is preferable that the magnetic pole is provided in each divided yoke of the armature laminated core.

請求項1、2記載の電機子積層鉄心の製造方法においては、連接平板導体群の他方側を電機子積層鉄心の磁極の内側型に沿わせ、連結部を順次屈曲して、連接平板導体群を磁極に内側型を介して螺旋状に巻回し、隣り合う第1、第2の平板導体が突き合う箇所を溶接又は鑞付けしてコイルを形成するので、螺旋状に連結される平板導体の位置合わせに手間を要することがなく、かつ位置ずれを発生させることなく、平板導体のコイルが形成される。
更には、前記平板導体は平板条材から一様な所望幅にて形成されるので、材料歩留りを高めることができる。
In the method for manufacturing an armature laminated core according to claim 1 or 2, the other side of the connected flat conductor group is placed along the inner side of the magnetic pole of the armature laminated core, the connecting portions are sequentially bent, and the connected flat conductor group Is wound around the magnetic pole in a spiral manner through the inner die, and a coil is formed by welding or brazing the locations where the adjacent first and second flat plate conductors abut each other. The coil of the flat conductor is formed without requiring labor for alignment and without causing positional deviation.
Furthermore, since the flat conductor is formed from a flat strip with a uniform desired width, the material yield can be increased.

請求項3記載の電機子積層鉄心の製造方法においては、連接平板導体群の各平板導体の内側辺を電機子積層鉄心の磁極に沿わせ、連結部を順次屈曲して、連接平板導体群を磁極に内側型を介して螺旋状に巻回し、隣り合う平板導体が突き合う箇所を溶接又は鑞付けして、コイルを形成するので、螺旋状に巻回した平板導体の第1片と第2片との位置合わせに手間を要することがなく、かつ位置ずれを発生させることなく、接続され、平板導体によるコイルが形成される。 In the armature laminated core manufacturing method according to claim 3, the inner side of each flat conductor of the connected flat conductor group is aligned with the magnetic pole of the armature laminated core, the connecting portion is sequentially bent, and the connected flat conductor group is Since the coil is formed by winding or spirally winding the magnetic pole around the magnetic pole through the inner mold and welding or brazing the location where the adjacent flat conductors abut, the first and second pieces of the flat conductor wound spirally are formed. Connection is made without requiring time and labor for positioning with the strip, and a coil made of a flat conductor is formed.

そして、請求項4記載の電機子積層鉄心の製造方法は、それぞれ同一幅で連結部で順次連結された、L字状の第1の平板導体、台形状の第1の平板導体、L字状の第2の平板導体及び台形状の第2の平板導体からなり、これら各平板導体の内側辺が、順次磁極の内側型の縦及び横の寸法を有し、更にこれら各平板導体を連結部で折り曲げた場合に、隣り合う各平板導体が直角に連接される切欠きを有する連接平板導体群を平板条材から形成し、連接平板導体群のL字状の第1の平板導体、台形状の第1の平板導体、L字状の第2の平板導体及び台形状の第2の平板導体を連結部を折り曲げながら磁極に内側型を介して螺旋状に巻回し、隣り合う各平板導体が突き合う箇所を溶接又は蝋付けして、コイルを形成するので、各平板導体同士を突き合せる箇所がコイル形成方向において同じ線上に連続して存在せず、突き合わせによる微少な厚み変動の影響が軽減され、コイルの層間に不均一な隙間がなく電磁気特性がすぐれる。また形状がすぐれる効果がさらに加わる。 And the manufacturing method of the armature laminated iron core of Claim 4 is the L-shaped 1st flat conductor, the trapezoidal 1st flat conductor, and L-shape which were respectively connected by the connection part sequentially with the same width | variety. The second flat plate conductor and the trapezoidal second flat plate conductor, the inner sides of these flat plate conductors have the vertical and horizontal dimensions of the inner mold of the magnetic poles sequentially, and the flat plate conductors are connected to the connecting portion. When connecting the flat plate conductors, the adjacent flat plate conductor group is formed from a flat strip material and has a notch where the adjacent flat plate conductors are connected at right angles to each other. The first flat plate conductor, the L-shaped second flat plate conductor, and the trapezoidal second flat plate conductor are spirally wound around the magnetic pole through the inner die while bending the connecting portion, and the adjacent flat plate conductors are Since the coil is formed by welding or brazing the abutting part, each flat conductor is Location is not present in succession on the same line in the coiling direction to, is reduced the influence of slight thickness variations due to butt, electromagnetic properties without non-uniform gaps between the layers of the coil excellent. In addition, the effect of improving the shape is further added.

請求項5記載の電機子積層鉄心の製造方法においては、切欠きは、対となって係合する、45度傾斜辺又は凸曲状辺及び凹曲状辺を備えているので、隣り合う各平板導体の端部同士を一致させることができ、接合不良が生じることなく接続することができる。 In the manufacturing method of the armature laminated core according to claim 5, since the notch includes a 45-degree inclined side or a convex curved side and a concave curved side that engage with each other as a pair, The ends of the flat conductors can be made to coincide with each other and can be connected without causing poor bonding.

また、請求項6記載の電機子積層鉄心の製造方法においては、磁極は電機子積層鉄心の各分割ヨークに設けられているので、磁極にコイルを巻回する場合の邪魔がなく、本発明方法による平板導体によるコイルの形成が容易に行える。 In the method for manufacturing an armature laminated core according to claim 6, since the magnetic pole is provided in each divided yoke of the armature laminated core, there is no obstacle when winding the coil around the magnetic pole, and the method of the present invention. The coil can be easily formed by the flat conductor.

続いて、添付した図面を参照しつつ、本発明を具体化した実施の形態につき説明し、本発明の理解に供する。
ここで、図1(A)、(B)は本発明の第1の実施の形態に係る電機子積層鉄心の製造方法の説明図、図2(A)、(B)は本発明の第2の実施の形態に係る電機子積層鉄心の製造方法の説明図 図3(A)、(B)は本発明の第3の実施の形態に係る電機子積層鉄心の製造方法の説明図、図4(A)、(B)は平板導体端部の切欠き状況及び連結部の説明図、図5(A)、(B)は各平板導体の溶接状況を示す説明図である。
Next, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention.
Here, FIGS. 1A and 1B are explanatory diagrams of a method for manufacturing an armature laminated core according to the first embodiment of the present invention, and FIGS. 2A and 2B are second diagrams of the present invention. Explanatory drawing of the manufacturing method of the armature laminated core which concerns on this embodiment FIG. 3: (A), (B) is explanatory drawing of the manufacturing method of the armature laminated core which concerns on the 3rd Embodiment of this invention, FIG. (A), (B) is a notch situation of a flat conductor end part, and explanatory drawing of a connecting part, and Drawing 5 (A) and (B) are explanatory views showing the welding situation of each flat conductor.

まず、図1を参照しながら本発明の第1の実施の形態に係る電機子積層鉄心の製造方法について説明する。
図1(A)に示すように、厚みが例えば0.5〜3mm範囲にある帯状の平板条材の一部をプレス加工によって、幅方向の一方側(下底)14、15の端部に所望長さをおいて連結部16、17によって連結された第1、第2の平板導体10、11を製造する。この第1、第2の平板導体10、11はそれぞれの斜辺12、13が一方側14、15に対して45度の実質等脚台形状となっている。そして、第1、第2の平板導体10、11は交互に連続的に形成され、それぞれの一方側14、15の端部は折り曲げ可能な連結部16、17によって連結されて、全体として連接平板導体群18を形成している。なお、結果として連結部16、17を残す略直角二等辺三角形の切欠き12aを所定位置に形成することによって、連接平板導体群18が形成される。
First, a method for manufacturing an armature laminated core according to the first embodiment of the present invention will be described with reference to FIG.
As shown in FIG. 1 (A), a part of a strip-shaped flat strip having a thickness in the range of 0.5 to 3 mm, for example, is pressed to the ends of one side (lower bottom) 14 and 15 in the width direction. The first and second flat conductors 10 and 11 connected by the connecting portions 16 and 17 with a desired length are manufactured. The first and second flat plate conductors 10 and 11 are substantially isosceles trapezoidal shapes in which the oblique sides 12 and 13 are 45 degrees with respect to the one side 14 and 15 respectively. The first and second flat conductors 10 and 11 are alternately and continuously formed, and the end portions of the respective one side 14 and 15 are connected by bendable connecting portions 16 and 17 so as to be connected as a whole. A conductor group 18 is formed. As a result, the connecting flat plate conductor group 18 is formed by forming a substantially right isosceles triangular notch 12a leaving the connecting portions 16 and 17 at a predetermined position.

第1、第2の平板導体10、11の幅方向の他方側(上底)19、20の長さは、鉄心片をかしめ積層し一体化してなる電機子積層鉄心の磁極21に装着される内側型(例えば、絶縁材からなるボビン)22の縦横の長さに略符合するか、僅少の範囲(例えば、2mm以内の範囲)で一致している。第1、第2の平板導体10、11の幅は同幅である。
連結部16、17の幅は例えば0.2〜2mm程度となる。
The lengths of the other side (upper bottoms) 19 and 20 in the width direction of the first and second flat conductors 10 and 11 are attached to the magnetic pole 21 of the armature laminated core formed by caulking and integrating the core pieces. The inner die 22 (for example, bobbin made of an insulating material) 22 substantially matches the length and width of the inner die 22 (for example, a range within 2 mm). The widths of the first and second flat conductors 10 and 11 are the same.
The widths of the connecting portions 16 and 17 are, for example, about 0.2 to 2 mm.

この連接平板導体群18を用いる電機子積層鉄心の製造方法について説明すると、図1(B)に示すように、磁極21の外側に装着された内側型22の一つの面に第1の平板導体10を沿わせて、次に連結部16を屈曲して第2の平板導体11を直角に折り曲げ、突き合う斜辺12、13同士を、電子ビーム溶接又はレーザー溶接(場合によってはTIG溶接又は蝋付け)して、平板導体10、11同士を接続する。
この場合の磁極21は積層鉄心のリング状のヨークを各磁極毎に分割した分割積層鉄心の磁極であることが、平板導体10、11を巻回してコイルを形成するのに望ましい。
The manufacturing method of the armature laminated iron core using the connected flat conductor group 18 will be described. As shown in FIG. 1B, the first flat conductor is formed on one surface of the inner die 22 mounted on the outer side of the magnetic pole 21. 10, and then the connecting portion 16 is bent to bend the second flat plate conductor 11 at a right angle, and the hypotenuses 12 and 13 that are in contact with each other are subjected to electron beam welding or laser welding (in some cases TIG welding or brazing) Then, the flat conductors 10 and 11 are connected to each other.
In this case, the magnetic pole 21 is preferably a magnetic pole of a divided laminated core obtained by dividing the ring-shaped yoke of the laminated iron core for each magnetic pole so that the flat conductors 10 and 11 are wound to form a coil.

次に、平板導体11に連接される平板導体10を内側型22に沿わせて、直角曲げし斜辺12、13を溶接する。そして、連接する平板導体11を同様な手順で直角曲げしてその当接部分を溶接する。これによって、1ターンの巻線が完成する。次のターンの巻線を同様な手順で行うが、各ターンの巻線を螺旋状に形成すると共に、各巻線の間に図示しない絶縁シートを配置する。この絶縁シートは巻線に合わせて螺旋状とするのが好ましいが、各コイルの間の絶縁距離離すものであれば、一部が分離して矩形シートであってもよい。 Next, the flat conductor 10 connected to the flat conductor 11 is bent at a right angle along the inner die 22 and the hypotenuses 12 and 13 are welded. Then, the flat plate conductors 11 connected to each other are bent at a right angle in the same procedure, and the contact portions are welded. This completes a one-turn winding. The winding of the next turn is performed in the same procedure, but the winding of each turn is formed in a spiral shape and an insulating sheet (not shown) is arranged between the windings. The insulating sheet is preferably formed in a spiral shape in accordance with the winding, but may be a rectangular sheet that is partially separated as long as the insulating distance between the coils is increased.

以上の操作を連続させて、所定の巻数のコイルが完成する。なお、コイルの始端部と、終端部には引き出し用の平板導体を溶接しておくのが好ましく、この部分を導体端子とすることができる。第1、第2の平板導体として銅材が好ましいが、任意の材料が使用できる。
なお、この第1の実施の形態において説明した技術は以下の第2、第3の実施の形態においても適用される。
A coil having a predetermined number of turns is completed by continuing the above operations. In addition, it is preferable to weld the lead | read | reed flat conductor to the starting end part and terminal part of a coil, and this part can be used as a conductor terminal. A copper material is preferable as the first and second flat conductors, but any material can be used.
The technique described in the first embodiment is also applied to the following second and third embodiments.

続いて、本発明の第2の実施の形態に係る電機子積層鉄心の製造方法について説明するが、基本的には、第1の実施の形態に係る電機子積層鉄心の製造方法において、第1、第2の平板導体10、11を一体物としたL字状の平板導体30を用いる。 Next, a method for manufacturing an armature laminated core according to the second embodiment of the present invention will be described. Basically, in the method for manufacturing an armature laminated core according to the first embodiment, An L-shaped flat conductor 30 in which the second flat conductors 10 and 11 are integrated is used.

即ち、図2(A)に示すように、直角に交わる同一幅の第1片26及び第2片27を有し、第1片26及び第2片27の開放側端部が45度傾斜となって、第1片26及び第2片27の各内側辺28、29が磁極21の積層厚み及び幅に基づいて決定される内側型22の縦横に対応する寸法となったL字状の平板導体30を複数有し、各平板導体30の第1片26と第2片27の開放端部の幅方向一方側(外側辺側)を折り曲げ可能な連結部31で連結した連接平板導体群32を図示しない平板条材からプレス加工によって形成する。 That is, as shown in FIG. 2 (A), the first piece 26 and the second piece 27 having the same width intersecting at a right angle are provided, and the open side end portions of the first piece 26 and the second piece 27 are inclined by 45 degrees. Thus, the L-shaped flat plate in which the inner sides 28 and 29 of the first piece 26 and the second piece 27 have dimensions corresponding to the length and width of the inner die 22 determined based on the lamination thickness and width of the magnetic pole 21. A connected flat conductor group 32 having a plurality of conductors 30 and connected by a connecting portion 31 that can bend one side (outside side) in the width direction of the open ends of the first piece 26 and the second piece 27 of each flat conductor 30. Is formed from a flat strip material (not shown) by pressing.

この連接平板導体群32の磁極21への巻線にあっては、図2(B)に示すように、この連接平板導体群32の一端にある平板導体30を電機子積層鉄心の磁極21を包む内側型22に沿わせ、連結部31を順次屈曲して、連接平板導体群32を磁極21に螺旋状に(即ち、隣り合うコイルが連続するように)巻回する。この場合、隣り合う平板導体30の第1片26と第2片27が突き合う箇所(切欠きを形成する対となる45度傾斜辺33)を溶接して、更に隣り合う巻線の間に絶縁シートを入れてコイルを形成する。 In the winding to the magnetic pole 21 of the connection flat conductor group 32, as shown in FIG. 2 (B), the flat conductor 30 at one end of the connection flat conductor group 32 is replaced with the magnetic pole 21 of the armature laminated core. The connecting portion 31 is sequentially bent along the inner mold 22 to be wrapped, and the connecting plate conductor group 32 is wound around the magnetic pole 21 in a spiral manner (that is, adjacent coils are continuous). In this case, a portion where the first piece 26 and the second piece 27 of the adjacent flat conductors 30 abut each other (a 45-degree inclined side 33 which forms a notch) is welded, and further, between adjacent windings. An insulating sheet is inserted to form a coil.

続いて、図3(A)、(B)を参照しながら、本発明の第3の実施の形態に係る電機子積層鉄心の製造方法について説明する。
それぞれ同一幅の平板導体からなって連結部50で連結された、L字状の第1の平板導体51、台形状の第1の平板導体52、L字状の第2の平板導体53及び台形状の第2の平板導体54を繰り返して構成され、順次これら各平板導体51〜54の内側辺55〜60が、交互に磁極21の内側型22の横、縦の寸法を有し、更にこれら各平板導体51〜54の外側辺側の両側端部を連結する連結部50を折り曲げた場合に、隣り合う各平板導体51〜54が直角に連接される切欠き61を有する連接平板導体群63を図示しない平板条材から形成する。
Then, the manufacturing method of the armature laminated core which concerns on the 3rd Embodiment of this invention is demonstrated, referring FIG. 3 (A), (B).
An L-shaped first flat plate conductor 51, a trapezoidal first flat plate conductor 52, an L-shaped second flat plate conductor 53, and a base, each composed of a flat conductor of the same width and connected by a connecting portion 50. The second plate conductors 54 having a shape are repeatedly formed, and the inner sides 55 to 60 of each of the plate conductors 51 to 54 sequentially have the horizontal and vertical dimensions of the inner die 22 of the magnetic pole 21, and these A connecting flat conductor group 63 having a notch 61 in which the adjacent flat conductors 51 to 54 are connected to each other at right angles when the connecting portion 50 that connects both side ends on the outer side of the flat conductors 51 to 54 is bent. Is formed from a flat strip material (not shown).

連接平板導体群63のL字状の第1の平板導体51、台形状の第1の平板導体52、L字状の第2の平板導体53及び台形状の第2の平板導体54を連結部50を折り曲げながら磁極21に内側型22を介して螺旋状に巻回し、隣り合う各平板導体51〜54が突き合う箇所を溶接又は蝋付けして、コイルを形成する。
連結部50を形成する切欠き61は、対となって係合する45度傾斜辺64、65によって形成されているが、これらの代わりに凸曲状辺及び凹曲状辺であってもよい(図4参照)。
A connecting portion that connects the L-shaped first flat conductor 51, the trapezoidal first flat conductor 52, the L-shaped second flat conductor 53, and the trapezoidal second flat conductor 54 of the connected flat conductor group 63. The coil 50 is formed by winding spirally around the magnetic pole 21 via the inner die 22 while bending 50, and welding or brazing the locations where the adjacent flat plate conductors 51 to 54 abut each other.
The notch 61 that forms the connecting portion 50 is formed by 45-degree inclined sides 64 and 65 that engage in a pair, but instead of these, a convex curved side and a concave curved side may be used. (See FIG. 4).

この第3の実施の形態によると、連接平板導体群63はL字状の第1の平板導体51、第2の平板導体53と、台形状の第1の平板導体52、第2の平板導体54が交互に、又は所望順序に接続しているので、磁極21に当該連接平板導体群63を巻回して形成されたコイルは、第1の平板導体51、52と第2の平板導体53、54同士を突き合わせた箇所がコイルの形成方向において同じ線上に連続して存在していない。従って、突き合わせによる厚み変動の影響が減少する。これにより、コイルの層間に不均一な隙間を生ぜず電磁特性がすぐれる。また形状もすぐれる。 According to the third embodiment, the connected flat conductor group 63 includes an L-shaped first flat conductor 51, a second flat conductor 53, a trapezoidal first flat conductor 52, and a second flat conductor. 54 are connected alternately or in a desired order, the coil formed by winding the connected flat conductor group 63 around the magnetic pole 21 includes the first flat conductors 51, 52 and the second flat conductor 53, The locations where the 54 are abutted do not continuously exist on the same line in the coil forming direction. Accordingly, the influence of thickness variation due to the butt is reduced. As a result, non-uniform gaps do not occur between the coil layers, and the electromagnetic characteristics are excellent. The shape is also excellent.

前記実施の形態においては、各平板導体の突き合せ箇所を溶接、又は場合によっては蝋付けで接続することとしたが、この接続には接続媒体を溶かす金属ペーストあるいはハンダ付けを含むものである。
また、前記実施の形態では、各平板導体が接続する箇所の側縁部を45度傾斜辺としたが、図4(A)、(B)に示すように、平板条材から部分円状(正確には45度円)の凹曲状辺17a及び凸曲状辺17bからなる切欠き17cを所定間隔で形成してもよい。
In the above-described embodiment, the butt portions of the respective flat conductors are connected by welding or, in some cases, brazing, but this connection includes metal paste or soldering that melts the connection medium.
Moreover, in the said embodiment, although the side edge part of the location which each flat conductor connects is made into a 45-degree inclination side, as shown to FIG. 4 (A) and (B), it is partial circle shape ( Cutouts 17c composed of a concave curved side 17a and a convex curved side 17b (precisely 45 degrees circle) may be formed at predetermined intervals.

更には、連結部16、17の背面側に図4(A)に示すように小さな三角状切欠き16aや、図4(B)に示すように半円状切欠き16bを形成してもよい。なお、以上のいずれの場合も、連結部で折り曲げると隣り合うの平板導体が直角状態で連接される。 Furthermore, a small triangular notch 16a as shown in FIG. 4 (A) or a semicircular notch 16b as shown in FIG. 4 (B) may be formed on the back side of the connecting portions 16 and 17. . In any of the above cases, adjacent flat conductors are connected in a right angle state when bent at the connecting portion.

また、図5(A)、(B)に示すように、各平板導体の突き合わせ箇所66の周囲を窪み22aを設けて減肉し溶接又は蝋付け接続による厚み変化を抑制してもよい。これによって、溶接時に発生する余盛22bがコイルの積層方向に突出するのを防止できる。
前記実施の形態においては、具体的な寸法や形状を特定して説明したが、本発明の要旨を変更しない範囲での変形及び改良した場合も本発明は適用される。
Further, as shown in FIGS. 5 (A) and 5 (B), a recess 22a may be provided around the abutting portion 66 of each flat conductor to reduce the thickness to suppress a thickness change due to welding or brazing connection. As a result, it is possible to prevent the surplus 22b generated during welding from protruding in the coil stacking direction.
In the above-described embodiments, specific dimensions and shapes have been specified and described, but the present invention is also applied to modifications and improvements that do not change the gist of the present invention.

(A)、(B)は本発明の第1の実施の形態に係る電機子積層鉄心の製造方法の説明図である。(A), (B) is explanatory drawing of the manufacturing method of the armature laminated core which concerns on the 1st Embodiment of this invention. (A)、(B)は本発明の第2の実施の形態に係る電機子積層鉄心の製造方法の説明図である。(A), (B) is explanatory drawing of the manufacturing method of the armature laminated core which concerns on the 2nd Embodiment of this invention. (A)、(B)は本発明の第3の実施の形態に係る電機子積層鉄心の製造方法の説明図である。(A), (B) is explanatory drawing of the manufacturing method of the armature laminated core which concerns on the 3rd Embodiment of this invention. (A)、(B)は平板導体端部の切欠き状況及び連結部の説明図である。(A), (B) is an explanatory view of a notch situation of a flat conductor end part and a connection part. (A)、(B)は各平板導体の溶接状況を示す説明図である。(A), (B) is explanatory drawing which shows the welding condition of each flat conductor. (A)〜(C)は従来例に係る電機子積層鉄心の製造方法の説明図である。(A)-(C) are explanatory drawings of the manufacturing method of the armature laminated core which concerns on a prior art example.

符号の説明Explanation of symbols

10:第1の平板導体、11:第2の平板導体、12、13:斜辺、12a:切欠き、14、15:一方側、16、17:連結部、16a:三角状切欠き、16b:半円状切欠き、17a:凹曲状辺、17b:凸曲状辺、17c:切欠き、18:連接平板導体群、19、20:他方側、21:磁極、22:内側型、22a:窪み、22b:余盛、26:第1片、27:第2片、28、29:内側辺、30:平板導体、31:連結部、32:連接平板導体群、33:45度傾斜辺、50:連結部、51、52:第1の平板導体、53、54:第2の平板導体、55〜60:内側辺、61:切欠き、63:連接平板導体群、64、65:45度傾斜辺、66:突き合わせ箇所 10: first flat conductor, 11: second flat conductor, 12, 13: hypotenuse, 12a: notch, 14, 15: one side, 16, 17: connecting portion, 16a: triangular notch, 16b: Semicircular cutout, 17a: concave curved side, 17b: convex curved side, 17c: cutout, 18: articulated plate conductor group, 19, 20: other side, 21: magnetic pole, 22: inner mold, 22a: Depression, 22b: extra-strip, 26: first piece, 27: second piece, 28, 29: inner side, 30: flat conductor, 31: connecting portion, 32: connected flat conductor group, 33: 45 ° inclined side, 50: connecting portion, 51, 52: first flat conductor, 53, 54: second flat conductor, 55-60: inner side, 61: notch, 63: articulated flat conductor group, 64, 65: 45 degrees Inclined side, 66: Matching point

Claims (6)

鉄心片を積層し一体化してなる電機子積層鉄心の磁極に、平板導体同士を接続し巻回してコイルを形成する電機子積層鉄心の製造方法において、
それぞれ台形状となって交互かつ連続して配置された同一幅の第1、第2の平板導体を有し、隣り合う前記第1、第2の平板導体の幅方向の一方側の端部が折り曲げ可能な連結部で連結され、しかも前記第1、第2の平板導体の他方側はそれぞれ前記磁極の積層厚み及び幅に基づいて決定される内側型の縦横に対応する寸法となった連接平板導体群を平板条材から形成し、
前記連接平板導体群の他方側を前記電機子積層鉄心の磁極に沿わせ、前記連結部を順次屈曲して、前記連接平板導体群を前記磁極に前記内側型を介して螺旋状に巻回し、隣り合う前記第1、第2の平板導体が突き合う箇所を溶接又は鑞付けして、前記コイルを形成することを特徴とする電機子積層鉄心の製造方法。
In the manufacturing method of the armature laminated core, in which the coil is formed by connecting and winding the flat conductors to the magnetic pole of the armature laminated core formed by laminating and integrating the core pieces,
Each of the first and second flat plate conductors having the same width, which are alternately and continuously arranged in a trapezoidal shape, has one end in the width direction of the adjacent first and second flat plate conductors. An articulated flat plate connected by a foldable connecting portion, and the other side of the first and second flat plate conductors has dimensions corresponding to the vertical and horizontal dimensions of the inner mold determined based on the laminated thickness and width of the magnetic poles. A conductor group is formed from a flat strip material,
The other side of the connecting plate conductor group is aligned with the magnetic pole of the armature laminated core, the connecting portion is bent sequentially, and the connecting plate conductor group is spirally wound around the magnetic pole via the inner mold, A method of manufacturing an armature laminated core, wherein the coil is formed by welding or brazing a portion where the adjacent first and second flat plate conductors abut each other.
請求項1記載の電機子積層鉄心の製造方法において、台形状となった前記第1、第2の平板導体の長手方向の両側には、前記連結部で折り曲げた場合に、直角に接合可能な切欠きを設けたことを特徴とする電機子積層鉄心の製造方法。 2. The method of manufacturing an armature laminated core according to claim 1, wherein the first and second flat plate conductors having a trapezoidal shape can be joined at right angles to each other in the longitudinal direction when bent at the connecting portion. A method for manufacturing an armature laminated iron core, comprising a notch. 鉄心片を積層し一体化してなる電機子積層鉄心の磁極に、平板導体同士を接続し巻回してコイルを形成する電機子積層鉄心の製造方法において、
同一幅の第1片及び第2片を有し、該第1片及び第2片の各内側辺が前記磁極の積層厚み及び幅に基づいて決定される内側型の縦横に対応する寸法となったL字状の前記平板導体を複数有し、複数の前記平板導体の幅方向の一方側の端部を折り曲げ可能な連結部で連結し、しかも前記第1片及び第2片の開放側端部には、前記連結部で折り曲げた場合に、直角に接合可能な切欠きが形成された連接平板導体群を平板条材から形成し、
前記連接平板導体群の各平板導体の内側辺を前記電機子積層鉄心の磁極に沿わせ、前記連結部を順次屈曲して、前記連接平板導体群を磁極に前記内側型を介して螺旋状に巻回し、隣り合う前記平板導体が突き合う箇所を溶接又は鑞付けして、前記コイルを形成することを特徴とする電機子積層鉄心の製造方法。
In the manufacturing method of the armature laminated core, in which the coil is formed by connecting and winding the flat conductors to the magnetic pole of the armature laminated core formed by laminating and integrating the core pieces,
The first piece and the second piece have the same width, and the inner sides of the first piece and the second piece have dimensions corresponding to the length and breadth of the inner mold determined based on the lamination thickness and width of the magnetic poles. A plurality of the L-shaped flat conductors, and one end in the width direction of the flat conductors is connected by a bendable connecting portion, and the open ends of the first piece and the second piece In the part, when bent at the connecting portion, a connected flat conductor group formed with a notch that can be joined at a right angle is formed from a flat strip member,
The inner side of each flat conductor of the connected flat conductor group is aligned with the magnetic pole of the armature laminated core, the connecting portion is bent sequentially, and the connected flat conductor group is spiraled to the magnetic pole via the inner die. A method for manufacturing an armature laminated core, wherein the coil is formed by winding and welding or brazing a location where the adjacent flat conductors meet.
鉄心片を積層し一体化してなる電機子積層鉄心の磁極に、平板導体同士を接続し巻回してコイルを形成する電機子積層鉄心の製造方法において、
それぞれ同一幅で連結部で順次連結された、L字状の第1の平板導体、台形状の第1の平板導体、L字状の第2の平板導体及び台形状の第2の平板導体からなり、これら各平板導体の内側辺が、順次前記磁極の内側型の縦及び横の寸法を有し、更にこれら各平板導体を前記連結部で折り曲げた場合に、隣り合う前記各平板導体が直角に連接される切欠きを有する連接平板導体群を平板条材から形成し、
前記連接平板導体群の前記L字状の第1の平板導体、台形状の第1の平板導体、L字状の第2の平板導体及び台形状の第2の平板導体を前記連結部を折り曲げながら前記磁極に前記内側型を介して螺旋状に巻回し、隣り合う前記各平板導体が突き合う箇所を溶接又は蝋付けして、前記コイルを形成することを特徴とする電機子積層鉄心の製造方法。
In the manufacturing method of the armature laminated core, in which the coil is formed by connecting and winding the flat conductors to the magnetic pole of the armature laminated core formed by laminating and integrating the core pieces,
From the L-shaped first flat plate conductor, the trapezoidal first flat plate conductor, the L-shaped second flat plate conductor, and the trapezoidal second flat plate conductor, which are sequentially connected at the connecting portion with the same width. The inner sides of the respective flat conductors have the vertical and horizontal dimensions of the inner mold of the magnetic poles sequentially, and when the flat conductors are bent at the connecting portion, the adjacent flat conductors are perpendicular to each other. Forming a connecting flat conductor group having a notch connected to the flat strip material;
The L-shaped first flat conductor, the trapezoidal first flat conductor, the L-shaped second flat conductor, and the trapezoidal second flat conductor of the connected flat conductor group are bent at the connecting portion. However, the coil is formed by winding the magnetic pole spirally through the inner mold and welding or brazing the locations where the adjacent flat plate conductors abut each other. Method.
請求項2〜4のいずれか1項に記載の電機子積層鉄心の製造方法において、前記切欠きは、対となって係合する、45度傾斜辺、又は凸曲状辺及び凹曲状辺を備えていることを特徴とする電機子積層鉄心の製造方法。 The method of manufacturing an armature laminated core according to any one of claims 2 to 4, wherein the notches engage with each other in pairs, a 45-degree inclined side, or a convex curved side and a concave curved side. The manufacturing method of the armature laminated iron core characterized by having provided. 請求項1〜5のいずれか1項に記載の電機子積層鉄心の製造方法において、前記磁極は該電機子積層鉄心の各分割ヨークに設けられていることを特徴とする電機子積層鉄心の製造方法。 The method for manufacturing an armature laminated core according to any one of claims 1 to 5, wherein the magnetic pole is provided in each divided yoke of the armature laminated core. Method.
JP2007139323A 2007-05-25 2007-05-25 Production method for armature laminated core Withdrawn JP2008295235A (en)

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