JP2000262021A - Armature coil joining structure and joining method - Google Patents
Armature coil joining structure and joining methodInfo
- Publication number
- JP2000262021A JP2000262021A JP11064720A JP6472099A JP2000262021A JP 2000262021 A JP2000262021 A JP 2000262021A JP 11064720 A JP11064720 A JP 11064720A JP 6472099 A JP6472099 A JP 6472099A JP 2000262021 A JP2000262021 A JP 2000262021A
- Authority
- JP
- Japan
- Prior art keywords
- coil material
- coil
- armature
- convex portion
- concave portion
- 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.)
- Pending
Links
Landscapes
- Manufacture Of Motors, Generators (AREA)
- Welding Or Cutting Using Electron Beams (AREA)
- Laser Beam Processing (AREA)
- Windings For Motors And Generators (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
(57)【要約】
【課題】 絶縁物４に熱ダメージを与えることなく、深
い溶け込み深さを有する電機子コイルの接合構造を提供
すること。
【解決手段】 絶縁物４と共に電機子鉄心に組み立てら
れるコイル素材５は、一方の端部に凹部、他方の端部に
凸部が形成され、異なるコイル素材５同士が互いの凹部
と凸部とを嵌合して組み合わされる。凹部と凸部は、両
者の嵌合隙間を無くすため、互いの嵌合面がそれぞれテ
ーパ状または円弧状に設けられている。また、凸部の下
側には、凹部との嵌合面と直交する段差面５ｃを有して
いる。各コイル素材５は、凹部と凸部とが組み合わさ
れ、その凹部と凸部との嵌合部に対し、例えば第１のコ
イル素材５Ａの上部側より高エネルギビームが照射され
る。この時、エネルギ量が大き過ぎて高エネルギビーム
が第１のコイル素材５Ａの下端面５ｄを貫通しても、段
差面５ｃで高エネルギビームを受け止めることができ、
絶縁物４への熱ダメージを防止できる。
(57) [Problem] To provide a joint structure of an armature coil having a deep penetration depth without causing thermal damage to an insulator (4). SOLUTION: A coil material 5 assembled to an armature core together with an insulator 4 has a concave portion at one end and a convex portion at the other end. Are fitted together. The concave and convex portions are provided with respective mating surfaces in a tapered or arcuate shape in order to eliminate a fitting gap therebetween. In addition, a step surface 5c perpendicular to the fitting surface with the concave portion is provided below the convex portion. Each coil material 5 has a combination of a concave portion and a convex portion, and a high-energy beam is applied to a fitting portion between the concave portion and the convex portion, for example, from the upper side of the first coil material 5A. At this time, even if the energy amount is too large and the high energy beam penetrates through the lower end surface 5d of the first coil material 5A, the high energy beam can be received by the step surface 5c,
Thermal damage to the insulator 4 can be prevented.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、回転電機の電機子
鉄心に組み立てられる第１のコイル素材と第２のコイル
素材との接合部が高エネルギビームを照射して接合され
ている電機子コイルの接合構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an armature coil in which a joint between a first coil material and a second coil material assembled on an armature core of a rotary electric machine is joined by irradiating a high energy beam. The joint structure.
【０００２】[0002]
【従来の技術】従来技術として、例えば特開平１０−１
７４３７９号公報に記載された電機子コイルの接合方法
が公知である。この従来技術では、電機子鉄心に絶縁物
（電機子鉄心のスロット内に挿入される絶縁紙等）を介
して組み立てられる一方のコイル素材と他方のコイル素
材の端部同士を溶融寸前まで予熱した後、レーザ溶接機
によりレーザ光を照射して接合する方法が開示されてい
る。2. Description of the Related Art As a prior art, for example, Japanese Patent Laid-Open No. 10-1
A method for joining armature coils described in Japanese Patent No. 74379 is known. In this conventional technique, the ends of one coil material and the other coil material assembled on an armature core via an insulator (insulating paper inserted into a slot of the armature core) are preheated to just before melting. Thereafter, a method of irradiating a laser beam with a laser welding machine to perform joining is disclosed.
【０００３】[0003]
【発明が解決しようとする課題】電機子コイルの接合部
は、回転時の遠心力に耐え得るために、また接合部での
電気抵抗率の上昇を抑えるために、接合面積を可能な限
り大きくすることが要求される。接合面積を大きくする
ためには溶け込み深さを深くする必要があり、理想的に
は、図１０に示すように、コイル素材１００の底面１０
１までの溶け込み深さを得ることが望ましい。しかし、
上記のレーザ光のような高エネルギビームを照射して接
合する場合は、溶け込み深さを深くするためにエネルギ
量を増やすと、コイル素材１００の底面１０１を貫通す
るため、その直下にある絶縁物１１０への熱ダメージ
（例えば炭化、焼失）は避けられない。この熱ダメージ
を避ける方法としては、エネルギ量を制御して、貫通寸
前でその照射を停止するという方法が考えられるが、貫
通寸前というタイミングを検出すること自体が現実的で
はないため、極めて困難である。本発明は、上記事情に
基づいて成されたもので、その目的は、絶縁物に熱ダメ
ージを与えることなく、深い溶け込み深さを有する電機
子コイルの接合構造を提供することにある。The joint area of the armature coil should be as large as possible in order to withstand centrifugal force during rotation and to suppress an increase in electrical resistivity at the joint area. Is required. In order to increase the bonding area, it is necessary to increase the penetration depth. Ideally, as shown in FIG.
It is desirable to obtain a penetration depth of up to 1. But,
In the case of joining by irradiating a high energy beam such as the laser beam described above, if the amount of energy is increased in order to increase the penetration depth, the insulator penetrates the bottom surface 101 of the coil material 100, so that the insulating material immediately below it Thermal damage (eg, carbonization, burning) to 110 is inevitable. As a method of avoiding this thermal damage, a method of controlling the amount of energy and stopping the irradiation immediately before the penetration is conceivable. However, it is not practical to detect the timing immediately before the penetration, which is extremely difficult. is there. The present invention has been made based on the above circumstances, and an object of the present invention is to provide a joint structure of an armature coil having a deep penetration depth without causing thermal damage to an insulator.
【０００４】[0004]
【課題を解決するための手段】（請求項１の手段）高エ
ネルギビームの照射によって接合される第１のコイル素
材と第２のコイル素材の端部同士と絶縁物との間に、高
エネルギビームを遮断できるエネルギ遮断部を有してい
る。これにより、接合部の溶け込み深さを深くするため
にエネルギ量を増やして高エネルギビームを照射して
も、エネルギ遮断部で高エネルギビームを遮断すること
によって絶縁物への熱ダメージを防止できる。According to a first aspect of the present invention, a high-energy beam is applied between the ends of the first coil material and the second coil material which are joined by irradiation of a high-energy beam and the insulator. It has an energy cutoff unit that can cut off the beam. Thereby, even if the high energy beam is irradiated by increasing the amount of energy in order to increase the penetration depth of the joint, thermal damage to the insulator can be prevented by cutting off the high energy beam at the energy cutoff portion.
【０００５】（請求項２の手段）第１のコイル素材と第
２のコイル素材の端部同士は、高エネルギビームとして
電子ビームを照射して接合されている。(Means of Claim 2) The ends of the first coil material and the second coil material are joined by irradiating an electron beam as a high energy beam.
【０００６】（請求項３の手段）第１のコイル素材と第
２のコイル素材の端部同士は、高エネルギビームとして
レーザ光を照射して接合されている。(Means of Claim 3) The ends of the first coil material and the second coil material are joined by irradiating a laser beam as a high energy beam.
【０００７】（請求項４の手段）第１のコイル素材と第
２のコイル素材の端部同士は、第１のコイル素材に設け
られた凹部と第２のコイル素材に設けられた凸部とを嵌
合して組み合わされ、且つ凹部と凸部は、互いの嵌合面
がテーパ状または円弧状に設けられている。この構造に
よれば、凹部と凸部との嵌合面を密着できるので、両者
の嵌合隙間を小さくできる。The end of the first coil material and the end of the second coil material may have a concave portion provided in the first coil material and a convex portion provided in the second coil material. And the concave and convex portions are provided such that their respective fitting surfaces are tapered or arcuate. According to this structure, the fitting surface between the concave portion and the convex portion can be brought into close contact, so that the fitting gap between the two can be reduced.
【０００８】（請求項５の手段）エネルギ遮断部は、第
１のコイル素材と第２のコイル素材の何方か一方の被接
合面から連続して形成される段差面によって構成されて
いる。この場合、段差面によって高エネルギビームを受
け止めることができるので、高エネルギビームが直接絶
縁物へ照射されることはなく、絶縁物への熱ダメージを
回避できる。(Means of Claim 5) The energy cut-off portion is constituted by a step surface continuously formed from any one of the first coil material and the second coil material to be joined. In this case, since the high energy beam can be received by the step surface, the high energy beam is not directly irradiated to the insulator, and thermal damage to the insulator can be avoided.
【０００９】（請求項６の手段）エネルギ遮断部は、第
１のコイル素材及び第２のコイル素材より高い融点を有
する部材によって構成されている。この場合、高エネル
ギビームがエネルギ遮断部まで達しても、エネルギ遮断
部が両コイル素材より早く融けることはないので、エネ
ルギ遮断部で高エネルギビームを遮断でき、絶縁物への
熱ダメージを回避できる。(Means of Claim 6) The energy cut-off portion is constituted by a member having a higher melting point than the first coil material and the second coil material. In this case, even if the high-energy beam reaches the energy cut-off portion, the energy cut-off portion does not melt faster than the two coil materials, so that the high-energy beam can be cut off at the energy cut-off portion and thermal damage to the insulator can be avoided. .
【００１０】（請求項７の手段）エネルギ遮断部は、第
１のコイル素材及び第２のコイル素材より反射率の高い
部材によって構成されている。高エネルギビームとして
レーザ光を使用する場合は、エネルギ遮断部に反射率の
高い部材を用いることにより、レーザ光をエネルギ遮断
部で遮断できるので、絶縁物への熱ダメージを回避でき
る。(Means of Claim 7) The energy cut-off portion is formed of a member having a higher reflectance than the first coil material and the second coil material. When a laser beam is used as a high energy beam, a laser beam can be blocked by the energy blocking unit by using a member having a high reflectance in the energy blocking unit, so that thermal damage to the insulator can be avoided.
【００１１】（請求項８の手段）請求項４に記載した第
１のコイル素材の凹部と第２のコイル素材の凸部とを接
合する際に、凹部と凸部との嵌合面に押圧力を付与しな
がら凹部と凸部とを接合することにより、両者の嵌合隙
間を略無くすことが可能である。これにより、スポット
径（照射部でのビーム径）が小さい高エネルギビームが
凹部と凸部との嵌合部を貫通することを防止できる。(8) When the concave portion of the first coil material and the convex portion of the second coil material are joined to each other, a pressing force is applied to a fitting surface between the concave portion and the convex portion. By joining the concave and convex portions while applying pressure, it is possible to substantially eliminate the fitting gap between the two. Accordingly, it is possible to prevent a high-energy beam having a small spot diameter (a beam diameter at the irradiation unit) from penetrating the fitting portion between the concave portion and the convex portion.
【００１２】[0012]
【発明の実施の形態】次に、本発明の実施形態を図面に
基づいて説明する。 （第１実施例）図１は電機子コイルの接合部を示す断面
図である。本実施例は、例えば自動車用スタータに用い
られるアーマチャ１に適用され、そのアーマチャ１に具
備される電機子コイル（後述する）の接合構造を示すも
のである。アーマチャ１は、電機子コイルの接合構造以
外は極めて周知な構成を有し、図５に示すように、回転
軸２、電機子鉄心３、電機子コイル、及び絶縁物４より
構成されている。Next, embodiments of the present invention will be described with reference to the drawings. (First Embodiment) FIG. 1 is a sectional view showing a joint portion of an armature coil. This embodiment is applied to, for example, an armature 1 used for a starter for an automobile, and shows a joining structure of an armature coil (described later) provided in the armature 1. The armature 1 has a very well-known configuration other than the armature coil joining structure, and includes a rotating shaft 2, an armature core 3, an armature coil, and an insulator 4, as shown in FIG.
【００１３】まず、電機子コイルの構成を説明する。電
機子コイルは、図４に示すように、それぞれ同一形状に
設けられた複数のコイル素材５を有し、そのコイル素材
５を所定形状に折り曲げて、絶縁物４と共に電機子鉄心
３に組み立てた後、各コイル素材５の端部同士を電気的
及び機械的に接合して形成される。なお、コイル素材５
は、電気抵抗の低い純銅あるいは純アルミニウム等の金
属材料を使用して形成されている。また、絶縁物４は、
コイル素材５同士を絶縁するとともに、コイル素材５と
電機子鉄心３とを絶縁するもので、電機子鉄心３のスロ
ット３ａ（図４参照）に挿入される。First, the configuration of the armature coil will be described. As shown in FIG. 4, the armature coil has a plurality of coil materials 5 provided in the same shape, and the coil material 5 is bent into a predetermined shape and assembled with the insulator 4 into the armature core 3. Thereafter, the ends of the respective coil materials 5 are electrically and mechanically joined to each other. The coil material 5
Is formed using a metal material such as pure copper or pure aluminum having a low electric resistance. Also, the insulator 4
The coil material 5 is insulated from each other and the coil material 5 is insulated from the armature core 3. The coil material 5 is inserted into a slot 3 a of the armature core 3 (see FIG. 4).
【００１４】各コイル素材５は、図３に示すように、一
方の端部に凹部５ａ、他方の端部に凸部５ｂが形成さ
れ、例えば第１のコイル素材５Ａと第２のコイル素材５
Ｂが、互いの凹部５ａと凸部５ｂとを嵌合して組み合わ
される。但し、コイル素材５の凹部５ａと凸部５ｂは、
互いの嵌合面５ａ1 、５ｂ1 がそれぞれテーパ状に傾斜
して設けられている。この場合、凹部５ａと凸部５ｂと
を嵌合した状態で、図２（ａ）に示すように、凹部５ａ
に対し凸部５ｂを矢印Ａ方向に押し付けることにより、
両者の嵌合隙間を略無くすことが可能となる。また、凸
部５ｂの下側には、凹部５ａとの嵌合面（後面を除く３
面）と直交する段差面５ｃ（本発明のエネルギ遮断部）
を有し、この段差面５ｃで凹部５ａ側のコイル素材５Ａ
を受けている（図２（ｂ）参照）。As shown in FIG. 3, each coil material 5 has a concave portion 5a at one end and a convex portion 5b at the other end. For example, a first coil material 5A and a second coil material 5a are formed.
B is assembled by fitting the concave portion 5a and the convex portion 5b of each other. However, the concave portion 5a and the convex portion 5b of the coil material 5 are
The mating surfaces 5a1 and 5b1 are provided to be tapered. In this case, in a state where the concave portion 5a and the convex portion 5b are fitted, as shown in FIG.
By pressing the convex portion 5b in the direction of arrow A,
The fitting gap between the two can be substantially eliminated. The lower surface of the convex portion 5b is fitted with the concave surface 5a.
Plane 5c (energy cut-off part of the present invention)
And the coil material 5A on the side of the concave portion 5a on the step surface 5c.
(See FIG. 2B).
【００１５】次に、本実施例の作用及び効果を説明す
る。上記の構成を有する各コイル素材５は、組み合わさ
れた凹部５ａと凸部５ｂとの嵌合部に対し、例えば図２
（ｂ）に示すように、第１のコイル素材５Ａの上部側に
配置したエネルギ照射部６より高エネルギビームを照射
する。この時、凹部５ａに対し凸部５ｂを背面側より押
圧して、両者の嵌合隙間を略無くした状態で高エネルギ
ビームを照射する。また、高エネルギビームは、図２
（ａ）に示す領域Ｂ全般に渡って照射される。なお、高
エネルギビームは、例えば電子ビーム、あるいはレーザ
光を使用することができる。また、高エネルギビームの
エネルギ量は、図１に示すように、接合部５Ｃ（高エネ
ルギビームの照射によって溶融した金属が凝固した部
分）の溶け込み深さが第１のコイル素材５Ａの下端面５
ｄに達する程度に調節されている。Next, the operation and effect of this embodiment will be described. Each of the coil materials 5 having the above-described configuration is, for example, shown in FIG.
As shown in (b), a high energy beam is irradiated from the energy irradiation unit 6 disposed on the upper side of the first coil material 5A. At this time, the convex portion 5b is pressed against the concave portion 5a from the rear side, and the high energy beam is irradiated in a state where the fitting gap between them is substantially eliminated. Also, the high energy beam is shown in FIG.
Irradiation is performed over the entire area B shown in FIG. Note that an electron beam or a laser beam can be used as the high energy beam, for example. As shown in FIG. 1, the energy amount of the high-energy beam is such that the penetration depth of the joint 5C (the portion where the metal melted by the irradiation of the high-energy beam solidifies) is equal to the lower end surface 5A of the first coil material 5A.
It is adjusted to reach d.
【００１６】但し、このエネルギ量で高エネルギビーム
を照射しても、接合部５Ｃの溶け込み深さが第１のコイ
ル素材５Ａの下端面５ｄで止まるとは限らない。つま
り、エネルギ量が大き過ぎると、高エネルギビームが第
１のコイル素材５Ａの下端面５ｄを貫通する可能性があ
る。これに対し、本実施例では、凸部５ｂの下側に段差
面５ｃを有しているので、エネルギ量が大き過ぎて高エ
ネルギビームが第１のコイル素材５Ａの下端面５ｄを貫
通しても、段差面５ｃで高エネルギビームを受け止める
ことができる。つまり、凸部５ｂの下側に設けられた段
差面５ｃが高エネルギビームを遮断する本発明のエネル
ギ遮断部として機能するため、高エネルギビームが直接
絶縁物４に照射されることはなく、絶縁物４への熱ダメ
ージを防止することができる。However, even if a high energy beam is irradiated with this amount of energy, the penetration depth of the joint 5C does not always stop at the lower end surface 5d of the first coil material 5A. That is, if the energy amount is too large, the high energy beam may penetrate the lower end surface 5d of the first coil material 5A. On the other hand, in the present embodiment, since the step surface 5c is provided below the convex portion 5b, the energy amount is too large and the high energy beam passes through the lower end surface 5d of the first coil material 5A. Also, the high energy beam can be received by the step surface 5c. That is, since the stepped surface 5c provided below the convex portion 5b functions as the energy cutoff portion of the present invention for cutting off the high energy beam, the high energy beam is not directly radiated to the insulator 4, so Thermal damage to the object 4 can be prevented.
【００１７】なお、本実施例に示した電機子コイルは、
図４に示したように、同一形状のコイル素材５を使用し
ているが、例えば特開平１０−１７４３７９号公報に開
示されている略コの字形の下層コイル素材と上層コイル
素材とを使用しても良い。また、本実施例に開示した電
機子コイルの接合構造は、コイル素材５の端部に設けた
凹部５ａと凸部５ｂとを組み合わせているが、例えば図
６に示すように、凹部５ａと凸部５ｂを設けない構造に
も適用できる。The armature coil shown in this embodiment is
As shown in FIG. 4, the same coil material 5 is used. For example, a substantially U-shaped lower coil material and an upper coil material disclosed in Japanese Patent Laid-Open No. 10-174379 are used. May be. Further, the joint structure of the armature coil disclosed in the present embodiment combines the concave portion 5a and the convex portion 5b provided at the end of the coil material 5, but for example, as shown in FIG. The present invention can be applied to a structure without the portion 5b.
【００１８】（第２実施例）図７は電機子コイルの被接
合部を示す側面図である。本実施例は、第１実施例に記
載した第２のコイル素材５Ｂにおいて、凸部５ｂの下側
に形成した段差面５ｃの位置を低くし、その段差面５ｃ
と第１のコイル素材５Ａの下端面５ｄとの間に隙間を設
けた場合の一例を示すものである。つまり、段差面５ｃ
は、高エネルギビームの照射による絶縁物４への熱ダメ
ージを防止するために設けられたものであり、第１実施
例で説明したように、必ずしも段差面５ｃで第１のコイ
ル素材５Ａを受ける必要はない。従って、図７に示すよ
うに、段差面５ｃと第１のコイル素材５Ａの下端面５ｄ
との間に隙間を有していても良い（但し、段差面５ｃの
位置を絶縁物４の上端より高くする必要はある）。(Second Embodiment) FIG. 7 is a side view showing a portion to be joined of an armature coil. In the present embodiment, in the second coil material 5B described in the first embodiment, the position of the step surface 5c formed below the protrusion 5b is lowered, and the step surface 5c is formed.
This shows an example in which a gap is provided between the first coil material 5A and the lower end surface 5d of the first coil material 5A. That is, the step surface 5c
Is provided to prevent thermal damage to the insulator 4 due to the irradiation of the high energy beam, and as described in the first embodiment, the first coil material 5A is not necessarily received on the step surface 5c. No need. Therefore, as shown in FIG. 7, the step surface 5c and the lower end surface 5d of the first coil material 5A are formed.
(However, the position of the step surface 5c needs to be higher than the upper end of the insulator 4).
【００１９】（第３実施例）図８はコイル素材の端部に
設けた凹部と凸部の斜視図である。本実施例は、コイル
素材５の端部に形成した凹部５ａと凸部５ｂの形状が第
１実施例とは異なり、図８に示すように、互いの嵌合面
５ａ1 、５ｂ1 を円弧状に設けた一例を示すものであ
る。この場合も、第１実施例と同様に、高エネルギビー
ムを照射する際に、凹部５ａに対し凸部５ｂを背面側よ
り押圧することで、両者の嵌合隙間を略無くすことが可
能である。なお、第１実施例及び第２実施例では、第１
のコイル素材５Ａに凹部５ａを設け、第２のコイル素材
５Ｂに凸部５ｂを設けているが、その逆でも良い。つま
り、第１のコイル素材５Ａに凸部５ｂを設け、第２のコ
イル素材５Ｂに凹部５ａを設けても良い。この場合、凸
部５ｂに対し凹部５ｂの背面側より押圧力を付与するこ
とで、両者の嵌合隙間を略無くすことができる。(Third Embodiment) FIG. 8 is a perspective view of a concave portion and a convex portion provided at an end of a coil material. This embodiment is different from the first embodiment in the shape of the concave portion 5a and the convex portion 5b formed at the end of the coil material 5. As shown in FIG. 8, the mating surfaces 5a1 and 5b1 are formed in an arc shape. It is an example of the provision. Also in this case, similarly to the first embodiment, when irradiating the high energy beam, the convex portion 5b is pressed against the concave portion 5a from the back side, so that the fitting gap between them can be substantially eliminated. . In the first embodiment and the second embodiment, the first
The concave portion 5a is provided in the coil material 5A and the convex portion 5b is provided in the second coil material 5B, but the reverse is also possible. That is, the protrusion 5b may be provided on the first coil material 5A, and the recess 5a may be provided on the second coil material 5B. In this case, by applying a pressing force to the convex portion 5b from the back side of the concave portion 5b, the fitting gap between the two can be substantially eliminated.
【００２０】（第４実施例）図９は電機子コイルの接合
構造を示す断面図である。本実施例は、エネルギ遮断部
７をコイル素材５とは異なる物質で形成した例を示すも
のである。エネルギ遮断部７は、コイル素材５より融点
の高い部材｛例えばＷ（タングステン）、Ｔｉ（チタ
ン）｝を接合部５Ｃの下側に配置しても良い。なお、エ
ネルギ遮断部７は、例えば図９（ａ）に示すように、第
１のコイル素材５Ａの下端面５ｄより上側に設けても良
いし、図９（ｂ）に示すように、第１のコイル素材５Ａ
の下端面５ｄより下側に設けても良い。(Fourth Embodiment) FIG. 9 is a sectional view showing a joint structure of an armature coil. The present embodiment shows an example in which the energy cut-off portion 7 is formed of a material different from the material of the coil 5. The energy interrupting section 7 may have a member having a higher melting point than the coil material 5 (for example, W (tungsten), Ti (titanium)) disposed below the joint 5C. The energy cut-off section 7 may be provided above the lower end face 5d of the first coil material 5A, for example, as shown in FIG. 9A, or may be provided as shown in FIG. 9B. Coil material 5A
May be provided below the lower end face 5d.
【００２１】また、高エネルギビームとしてレーザ光を
使用する場合は、コイル素材５よりレーザ光の反射率が
高く、レーザ光の貫通を阻止できる部材｛例えばＡｇ
（銀）等｝をエネルギ遮断部７として使用することもで
きる。本実施例によれば、高エネルギビームがエネルギ
遮断部７を貫通して絶縁物４へ照射されることを防止で
きるので、絶縁物４への熱ダメージを回避できる。な
お、各実施例１〜４を組み合わせてエネルギ遮断部７を
構成しても良い。When a laser beam is used as a high-energy beam, a member having a higher reflectivity than the coil material 5 and capable of preventing the penetration of the laser beam {for example, Ag
(Silver) or the like can be used as the energy cut-off portion 7. According to the present embodiment, it is possible to prevent the high-energy beam from irradiating the insulator 4 through the energy cut-off section 7, so that thermal damage to the insulator 4 can be avoided. Note that the energy cut-off unit 7 may be configured by combining the first to fourth embodiments.
【図１】電機子コイルの接合部を示す断面図である。FIG. 1 is a cross-sectional view showing a joint portion of an armature coil.
【図２】（ａ）電機子コイルの被接合部を示す上面図、
（ｂ）側面図である。FIG. 2A is a top view showing a portion to be joined of an armature coil;
(B) It is a side view.
【図３】コイル素材の端部に設けた凹部と凸部の斜視図
である。FIG. 3 is a perspective view of a concave portion and a convex portion provided at an end of a coil material.
【図４】電機子鉄心とコイル素材の斜視図である。FIG. 4 is a perspective view of an armature core and a coil material.
【図５】電機子の半側面図である。FIG. 5 is a half side view of the armature.
【図６】コイル素材の端部形状を示す斜視図である。FIG. 6 is a perspective view showing an end shape of a coil material.
【図７】電機子コイルの被接合部を示す側面図である
（第２実施例）。FIG. 7 is a side view showing a portion to be joined of an armature coil (second embodiment).
【図８】コイル素材の端部に設けた凹部と凸部の斜視図
である（第３実施例）。FIG. 8 is a perspective view of a concave portion and a convex portion provided at an end of a coil material (third embodiment).
【図９】電機子コイルの接合構造を示す断面図である
（第４実施例）。FIG. 9 is a sectional view showing a joint structure of an armature coil (fourth embodiment).
【図１０】電機子コイルの接合部を示す断面図である
（従来技術の説明）。FIG. 10 is a cross-sectional view showing a joint portion of an armature coil (prior art description).
３ 電機子鉄心 ５Ａ 第１のコイル素材 ５Ｂ 第２のコイル素材 ５ａ 凹部 ５ｂ 凸部 ５ｃ 段差面 ５ａ1 凹部の嵌合面 ５ｂ1 凸部の嵌合面 ７ エネルギ遮断部 Reference Signs List 3 armature core 5A first coil material 5B second coil material 5a concave portion 5b convex portion 5c step surface 5a1 concave fitting surface 5b1 convex fitting surface 7 energy cut-off portion
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｈ０２Ｋ 3/51 Ｈ０２Ｋ 3/51 Ａ // Ｂ２３Ｋ 101:38 103:10 103:12 Ｆターム(参考） 4E066 AB04 CA15 CB09 CB10 4E068 BA00 CA14 CB06 CF03 DA09 DB02 DB04 5H603 AA03 AA04 AA09 BB12 CA02 CA05 CB03 CB19 CB23 CB26 CC04 CC17 CD22 CE02 CE05 CE13 CE14 EE01 EE02 FA04 5H604 AA05 AA08 BB14 CC02 CC05 CC14 DB15 PB02 PB03 QB15 5H615 AA01 BB14 PP02 PP08 PP14 QQ03 QQ12 QQ23 RR04 SS04 SS16 SS17 SS46 TT14 TT15──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) H02K 3/51 H02K 3/51 A // B23K 101: 38 103: 10 103: 12 F term (Reference) 4E066 AB04 CA15 CB09 CB10 4E068 BA00 CA14 CB06 CF03 DA09 DB02 DB04 5H603 AA03 AA04 AA09 BB12 CA02 CA05 CB03 CB19 CB23 CB26 CC04 CC17 CD22 CE02 CE05 CE13 CE14 EE01 EE02 FA04 5H604 AA05 A150814 BB14 CC02 CC05 CC02 CC05 QQ03 QQ12 QQ23 RR04 SS04 SS16 SS17 SS46 TT14 TT15
Claims (8)
み立てられる第１のコイル素材と第２のコイル素材とを
有し、その第１のコイル素材と第２のコイル素材の端部
同士が高エネルギビームの照射によって接合されている
電機子コイルの接合構造であって、 前記高エネルギビームの照射によって接合される前記第
１のコイル素材と第２のコイル素材の端部同士と前記絶
縁物との間に、前記高エネルギビームを遮断できるエネ
ルギ遮断部を有していることを特徴とする電機子コイル
の接合構造。A first coil material and a second coil material assembled on an armature core of a rotary electric machine via an insulator, and ends of the first and second coil materials. An armature coil joining structure in which the first coil material and the second coil material are joined by irradiation of the high energy beam. An armature coil joining structure having an energy cutoff portion capable of cutting off the high energy beam between the insulator and an insulator.
の端部同士は、前記高エネルギビームとして電子ビーム
を照射して接合されていることを特徴とする請求項１に
記載した電機子コイルの接合構造。2. The electric machine according to claim 1, wherein the ends of the first coil material and the second coil material are joined by irradiating an electron beam as the high energy beam. Child coil joining structure.
の端部同士は、前記高エネルギビームとしてレーザ光を
照射して接合されていることを特徴とする請求項１に記
載した電機子コイルの接合構造。3. The electric machine according to claim 1, wherein the ends of the first coil material and the second coil material are joined by irradiating a laser beam as the high energy beam. Child coil joining structure.
の端部同士は、前記第１のコイル素材に設けられた凹部
と前記第２のコイル素材に設けられた凸部とを嵌合して
組み合わされ、且つ前記凹部と凸部は、互いの嵌合面が
テーパ状または円弧状に設けられていることを特徴とす
る請求項１〜３に記載した電機子コイルの接合構造。4. An end of the first coil material and an end of the second coil material are fitted with a concave portion provided on the first coil material and a convex portion provided on the second coil material. The joint structure of an armature coil according to any one of claims 1 to 3, wherein the concave portion and the convex portion are combined with each other, and the fitting surfaces of the concave portion and the convex portion are provided in a tapered shape or an arc shape.
素材と第２のコイル素材の何方か一方の被接合面から連
続して形成される段差面によって構成されていることを
特徴とする請求項１〜４に記載した電機子コイルの接合
構造。5. The energy cut-off section is formed by a step surface formed continuously from one of the first coil material and the second coil material to be joined. An armature coil joining structure according to claim 1.
素材及び第２のコイル素材より高い融点を有する部材に
よって構成されていることを特徴とする請求項１〜４に
記載した電機子コイルの接合構造。6. The armature coil according to claim 1, wherein said energy cut-off portion is formed of a member having a higher melting point than said first coil material and said second coil material. Joint structure.
用する場合であって、 前記エネルギ遮断部は、前記第１のコイル素材及び第２
のコイル素材より反射率の高い部材によって構成されて
いることを特徴とする請求項１〜４に記載した電機子コ
イルの接合構造。7. A case in which a laser beam is used as the high energy beam, wherein the energy cut-off section includes the first coil material and the second coil material.
The joint structure for an armature coil according to any one of claims 1 to 4, wherein the joint structure is made of a member having higher reflectivity than the coil material.
の凹部と第２のコイル素材の凸部とを接合する方法であ
って、 前記凹部と凸部との嵌合面に押圧力を付与しながら前記
凹部と凸部とを接合することを特徴とする電機子コイル
の接合方法。8. The method according to claim 4, wherein the concave portion of the first coil material and the convex portion of the second coil material are joined, and a pressing force is applied to a fitting surface between the concave portion and the convex portion. Bonding the armature coil with the concave portion and the convex portion while applying a force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11064720A JP2000262021A (en) | 1999-03-11 | 1999-03-11 | Armature coil joining structure and joining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11064720A JP2000262021A (en) | 1999-03-11 | 1999-03-11 | Armature coil joining structure and joining method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000262021A true JP2000262021A (en) | 2000-09-22 |
Family
ID=13266285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11064720A Pending JP2000262021A (en) | 1999-03-11 | 1999-03-11 | Armature coil joining structure and joining method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000262021A (en) |
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| JP2010141964A (en) * | 2008-12-09 | 2010-06-24 | Toyota Motor Corp | Rotary electric machine and method of manufacturing the same |
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| EP3506467A1 (en) * | 2017-12-27 | 2019-07-03 | Toyota Jidosha Kabushiki Kaisha | Stator of rotary electric machine and method of manufacturing stator coil |
| RU2707968C1 (en) * | 2017-12-27 | 2019-12-03 | Тойота Дзидося Кабусики Кайся | Rotor of rotary electric machine and method of stator coil manufacturing |
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