JP2004048864A - Rotating machine - Google Patents

Rotating machine Download PDF

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Publication number
JP2004048864A
JP2004048864A JP2002200700A JP2002200700A JP2004048864A JP 2004048864 A JP2004048864 A JP 2004048864A JP 2002200700 A JP2002200700 A JP 2002200700A JP 2002200700 A JP2002200700 A JP 2002200700A JP 2004048864 A JP2004048864 A JP 2004048864A
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JP
Japan
Prior art keywords
coil
rotating machine
terminal
fitting
current
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.)
Withdrawn
Application number
JP2002200700A
Other languages
Japanese (ja)
Inventor
Hiromitsu Watanabe
渡辺 広光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
Original Assignee
Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Meidensha Corp, Meidensha Electric Manufacturing Co Ltd filed Critical Meidensha Corp
Priority to JP2002200700A priority Critical patent/JP2004048864A/en
Publication of JP2004048864A publication Critical patent/JP2004048864A/en
Withdrawn legal-status Critical Current

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  • Motor Or Generator Frames (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotating machine having a current connecting means for reducing the thermal stress on a coil due to a thermal deformation. <P>SOLUTION: This rotating machine includes a coil 4 arranged in a stator 3 in a frame 5, a terminal block 8 connected to the coil 4, and a connecting metal terminal fixture 7a connected to the terminal block 8, insulated and supported by the frame 5 and mounted outside the frame 5. The fixture 7a has a U-shaped bent part having an elastic function for absorbing a force by the thermal deformation of the coil 4. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、モータや発電機等の回転機に関する。
【0002】
【従来の技術】
モータや発電機等の回転機のステータ内に配設されたコイルは、電流を流すために、ステータを支持するフレームの外部の端子へ接続する必要がある。そのため、一般的には、コイルの端部に接続用の端子台を設け、この端子台に接続金具を取付け、この接続金具を、フレームを貫通して外部に取り出すことで、フレームの外部へ接続できるようにしている。従来例となる構造を、図5を用いて説明する。
【0003】
図5は、従来のモータを示し、(a)は側面の断面図、(b)は(a)のAA線矢視断面図である。
【0004】
図5(a)に示すように、従来のモータは、回転軸となるシャフト1と、シャフト1と同軸に支持されるロータ2と、ロータ2の周囲に配設されるステータ3と、ステータ3内部の長手方向に配設されるコイル4とを有しており、ステータ3は回転機の筐体となるフレーム5の内側に支持され、又、シャフト1は、図示していない軸受けとともにフレーム5の両端部に配設されるブラケット6に支持される。
【0005】
モータは、ステータ3内部に配設されるコイル4に電流を流すことで、ステータ3に磁束を形成し、永久磁石を有するロータ2に磁束を及ぼして、ロータ2を回転させる。そのため、図5(a)にしめす端子接続金具17、端子台8等を介して、コイル4に外部から電流を供給している。
【0006】
具体的には、モータは、コイル4に接続された端子台8と、端子台8に接続され、フレーム5により絶縁されて支持され、フレーム5の外部に取り出された棒状の接続端子金具17とを有する。端子台8は、ナット9等により、その両側から接続端子金具17に固定される。
【0007】
通常コイル4には複数の端子台8が接続されており、例えば、図5(b)に示すモータでは、3相の交流電流を供給するために、3つの端子接続金具17を有しており、各々の端子台8がナット9により端子接続金具17に固定されて、コイル4側に接続される。
【0008】
【発明が解決しようとする課題】
コイル4は電流が流れると、ジュール熱のため発熱し、熱変形10を起こす。一方、フレーム5は、外気に直接触れるため、コイル4の温度より低く、熱変形も小さく、フレーム5に固定される端子接続金具17の固定位置もほとんど変位しない。ところが、コイル4と端子接続金具17は、電流供給のため互いに接続されているため、これらの接続部分に、熱による互いの変形量の違いの影響が現れる。
【0009】
図5に示す従来のモータの構造では、端子接続金具17が固定されるフレーム5の熱変形が小さく、更に、棒状の端子接続金具17自体の剛性が高く、変形しにくいため、コイル4の熱変形10を強制的に拘束することとなる。そのため、コイル4に熱ひずみが発生し、コイル4が大きな熱応力を有することとなる。この熱応力は、コイル4の断線等の問題の原因となり、モータの寿命を短くするおそれがある。
【0010】
本発明は上記課題に鑑みなされたもので、熱変形によるコイルの熱応力を小さくする電流接続手段を備えた回転機を提供することを目的とする。
【0011】
【課題を解決するための手段】
上記課題を解決する本発明に係る回転機は、筐体内部のステータ内に配設されたコイルと、前記コイルに電流を供給する電流接続手段とを有し、前記電流接続手段が、前記コイルの熱変形による力を吸収するように、弾性機能を有することを特徴とする。
【0012】
上記課題を解決する本発明に係る回転機は、前記弾性機能として、前記電流接続手段が、湾曲部若しくは屈曲部のいずれか一方、又は、両方を有することを特徴とする。
【0013】
上記課題を解決する本発明に係る回転機は、前記湾曲部をU字状としたことを特徴とする。
【0014】
上記課題を解決する本発明に係る回転機は、前記屈曲部をくの字状としたことを特徴とする。
【0015】
上記課題を解決する本発明に係る回転機は、前記弾性機能として、前記電流接続手段がらせん部を有することを特徴とする。
【0016】
【発明の実施の形態】
本発明に係る回転機は、図5に示す従来の回転機と略同等の構成でよい。即ち、回転軸となるシャフト1と、シャフト1と同軸に支持されるロータ2と、ロータ2の周囲に配設されるステータ3と、ステータ3内の長手方向に配設されるコイル4とを有しており、ステータ3は回転機の筐体となるフレーム5の内側に支持され、又、シャフト1は、軸受けとともにフレーム5の両端部に配設されるブラケットに支持される。又、コイル4に外部から電流を供給するための電流接続手段として、コイル4に接続された端子台8と、端子台8にナット9により接続され、フレーム5により絶縁材等を介して支持され、フレーム5の外部へ取り出された端子接続金具7とを有している。
【0017】
従来、コイル4の熱変形による力を電流接続手段側で吸収することができず、電流接続手段側の剛性の強さが、反力としてコイル4の変形を拘束し、大きな熱応力を生じさせていた。しかしながら、本発明では、コイル4の熱変形による熱応力を低減するために、剛性の高い端子接続金具7の形状を工夫し、端子接続金具7に弾性機能を持たせることで、熱変形による力を端子接続金具7側で吸収し、熱応力を小さくする構造とした。
【0018】
具体的には、湾曲部や屈曲部を設けたり、らせん状の構造としたりすることで、剛性の高い端子接続金具7に弾性機能を持たせた。この具体的な実施例を、図1乃至図4において示す。なお、本発明は、図に示すもののみに限定するものではない。
【0019】
図1は、本発明に係る実施形態の一例を示すモータの端部の断面図である。
【0020】
従来は直線の棒状であった端子接続金具17(図5参照)を、図1に示すように、本実施例では、端子接続金具7aが、湾曲部となるU字状の形状を有するものとした。U字状の形状を有することで、端子接続金具7aを変形しやすくして、端子接続金具7aに弾性機能を持たせることができる。そのため、端子接続金具7a自体が、コイル4の熱変形時に、コイル4の熱変形による力を、U字状の湾曲部で吸収することができ、コイル4の熱変形を拘束しにくくして、コイル4の熱応力を低減することができる。
【0021】
図2は、本発明に係る実施形態の他の一例を示すモータの端部の断面図である。
【0022】
図2に示すように、本実施例では、端子接続金具7bが、屈曲部となるくの字状の形状を有するものとした。くの字状の形状を有することで、端子接続金具7bを変形しやすくして、端子接続金具7bに弾性機能を持たせることができる。そのため、端子接続金具7b自体が、コイル4の熱変形時に、コイル4の熱変形による力を、くの字状の屈曲部で吸収することができ、コイル4の熱変形を拘束しにくくして、コイル4の熱応力を低減することができる。
【0023】
又、図1に示すU字状の形状を有する端子接続金具7aを用いて、コイル4と接続する場合、コイル4に接続する端子台8の更に内側方向に接続端子金具7aの一部があり、そこがよりロータ2側に近づくため、ロータ2とステータ3との間隔が狭い場合には接続に無理が生じる場合がある。しかしながら、このような場合でも、図2に示すような、くの字状の形状を有する端子接続金具7bを用いることで、コイル4の熱応力を低減する弾性機能を有するとともに、端子接続金具7bを直線の棒状とすることもなく、コイル4と端子接続金具7bとを接続することができる。
【0024】
図3は、本発明に係る実施形態の他の一例を示すモータの端部であり、(a)は断面図、(b)は端子接続金具の斜視図である。
【0025】
図3に示すように、本実施例では、端子接続金具7cが、湾曲部、屈曲部を有することで、端子接続金具7cを変形しやすくして、端子接続金具7cに弾性機能を持たせることができる。具体的には、端子接続金具7cは、1つの湾曲部が、2つの屈曲部に挟まれてクランク状に構成されており、図3(a)に示す正面から見た図では、クランク状に見え、図3(b)に示す斜視図では、1つの湾曲部の端部に2本の棒状の金具が上下に配設されたように見える。
【0026】
本発明では、電流接続手段である端子接続金具に弾性機能を持たせるため、1つ又は複数の湾曲部を有する構成としてもよいし、1つ又は複数の屈曲部を有する構成としてもよいし、1つ又は複数の湾曲部及び1つ又は複数の屈曲部を有する構成としてもよく、図3に示す端子接続金具7cは、その一例である。
【0027】
上記構造であるため、端子接続金具7c自体が、コイル4の熱変形時に、コイル4の熱変形による力を、湾曲部及び屈曲部で吸収することができ、コイル4の熱変形を拘束しにくくして、コイル4の熱応力を低減することができる。
【0028】
ロータ2とステータ3との間隔が狭い場合でも、本実施例の端子接続金具7cを用いることで、コイル4の熱応力を低減する弾性機能を有するとともに、端子接続金具7cを直線の棒状とすることもなく、コイル4と端子接続金具7cとを接続することができる。
【0029】
図4は、本発明に係る実施形態の他の一例を示すモータの端部であり、(a)は断面図、(b)は端子接続金具の斜視図である。
【0030】
図4に示すように、本実施例では、端子接続金具7dが、らせん部となるらせん状の形状を有するものとした。らせん状の形状を有することで、バネのように端子接続金具7dを変形しやすくして、端子接続金具7dに弾性機能を持たせることができる。そのため、端子接続金具7d自体が、コイル4の熱変形時に、コイル4の熱変形による力を、らせん部で吸収することができ、コイル4の熱変形を拘束しにくくして、コイル4の熱応力を低減することができる。
【0031】
ロータ2とステータ3との間隔が狭い場合でも、本実施例の端子接続金具7dを用いることで、コイル4の熱応力を低減する弾性機能を有するとともに、端子接続金具7dを直線の棒状とすることもなく、コイル4と端子接続金具7dとを接続することができる。
【0032】
図1乃至図4に示す実施例の場合、コイル4の熱変形の方向が、シャフト1の長手方向のみではなく、シャフト1の円周方向、法線方向であっても、端子接続金具7は、その変形に対応できる構造であり、コイル4に対する端子接続金具7の接続方向を工夫することで、コイル4の熱応力をより低減するようにすることも可能である。
【0033】
【発明の効果】
本発明によれば、回転機が、筐体内部のステータ内に配設されたコイルと、前記コイルに電流を供給する電流接続手段とを有し、前記電流接続手段が、前記コイルの熱変形による力を吸収するように、弾性機能を有するので、接続端子金具がコイルの熱変形を拘束しにくくできるため、コイル自体の熱応力が緩和でき、疲労寿命を長くできる。即ち、回転機の信頼性を向上させることとなり、長期間の使用が可能となる。又、電流接続手段側の負荷となる応力も低減できるため、電流接続手段の端子台を小型化することができ、更に、電流接続手段の端子接続金具が弾性を有するため、組立時の位置決め精度が低くても、組立が可能となる。
【図面の簡単な説明】
【図1】本発明に係る実施形態の一例を示すモータの端部の断面図である。
【図2】本発明に係る実施形態の他の一例を示すモータの端部の断面図である。
【図3】本発明に係る実施形態の他の一例を示すモータの端部であり、(a)は断面図、(b)は端子接続金具の斜視図である。
【図4】本発明に係る実施形態の他の一例を示すモータの端部であり、(a)は断面図、(b)は端子接続金具の斜視図である。
【図5】従来のモータを示し、(a)は側面の断面図、(b)は端部の断面図である。
【符号の説明】
1  シャフト
2  ロータ
3  ステータ
4  コイル
5  フレーム
7a〜7d 端子接続金具
8  端子台
9  ナット
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a rotating machine such as a motor or a generator.
[0002]
[Prior art]
A coil disposed in a stator of a rotating machine such as a motor or a generator needs to be connected to an external terminal of a frame supporting the stator in order to allow a current to flow. Therefore, in general, a connection terminal block is provided at the end of the coil, a connection fitting is attached to the terminal block, and the connection fitting is pulled out to the outside through the frame to be connected to the outside of the frame. I can do it. A conventional structure will be described with reference to FIG.
[0003]
5A and 5B show a conventional motor, in which FIG. 5A is a side sectional view, and FIG. 5B is a sectional view taken along line AA of FIG.
[0004]
As shown in FIG. 5A, a conventional motor includes a shaft 1 serving as a rotating shaft, a rotor 2 supported coaxially with the shaft 1, a stator 3 disposed around the rotor 2, The stator 3 is supported inside a frame 5 serving as a housing of the rotating machine, and the shaft 1 is supported by a frame 5 together with a bearing (not shown). Are supported by brackets 6 disposed at both ends of the.
[0005]
The motor causes a current to flow through a coil 4 disposed inside the stator 3 to form a magnetic flux in the stator 3 and apply the magnetic flux to the rotor 2 having a permanent magnet to rotate the rotor 2. Therefore, an electric current is supplied to the coil 4 from the outside via the terminal connection fitting 17 and the terminal block 8 shown in FIG.
[0006]
Specifically, the motor includes a terminal block 8 connected to the coil 4, a rod-shaped connection terminal fitting 17 connected to the terminal block 8, insulated and supported by the frame 5, and taken out of the frame 5. Having. The terminal block 8 is fixed to the connection terminal fitting 17 from both sides by nuts 9 and the like.
[0007]
Usually, a plurality of terminal blocks 8 are connected to the coil 4. For example, the motor shown in FIG. 5B has three terminal connection fittings 17 for supplying a three-phase alternating current. The respective terminal blocks 8 are fixed to the terminal fittings 17 by nuts 9 and connected to the coil 4 side.
[0008]
[Problems to be solved by the invention]
When a current flows, the coil 4 generates heat due to Joule heat and causes thermal deformation 10. On the other hand, since the frame 5 is in direct contact with the outside air, the temperature is lower than the temperature of the coil 4, the thermal deformation is small, and the fixing position of the terminal fitting 17 fixed to the frame 5 is hardly displaced. However, since the coil 4 and the terminal fitting 17 are connected to each other for supplying current, the influence of the difference in the amount of deformation due to heat appears on these connection parts.
[0009]
In the structure of the conventional motor shown in FIG. 5, the thermal deformation of the frame 5 to which the terminal fittings 17 are fixed is small, and the rigidity of the rod-shaped terminal fittings 17 themselves is high and the rods are not easily deformed. The deformation 10 is forcibly restrained. Therefore, thermal strain occurs in the coil 4, and the coil 4 has a large thermal stress. This thermal stress causes a problem such as disconnection of the coil 4 and may shorten the life of the motor.
[0010]
SUMMARY OF THE INVENTION The present invention has been made in consideration of the above problems, and has as its object to provide a rotating machine having current connecting means for reducing thermal stress of a coil due to thermal deformation.
[0011]
[Means for Solving the Problems]
A rotating machine according to the present invention for solving the above-mentioned problems has a coil disposed in a stator inside a housing, and current connecting means for supplying a current to the coil, wherein the current connecting means It is characterized by having an elastic function so as to absorb a force due to thermal deformation.
[0012]
The rotating machine according to the present invention for solving the above-mentioned problems is characterized in that the current connection means has one or both of a curved portion and a bent portion as the elastic function.
[0013]
A rotating machine according to the present invention for solving the above-mentioned problems is characterized in that the curved portion has a U-shape.
[0014]
A rotating machine according to the present invention that solves the above-mentioned problem is characterized in that the bent portion is formed in a V shape.
[0015]
A rotating machine according to the present invention for solving the above-mentioned problems is characterized in that the current connecting means has a spiral portion as the elastic function.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
The rotating machine according to the present invention may have substantially the same configuration as the conventional rotating machine shown in FIG. That is, a shaft 1 serving as a rotation axis, a rotor 2 supported coaxially with the shaft 1, a stator 3 disposed around the rotor 2, and a coil 4 disposed in the stator 3 in a longitudinal direction are provided. The stator 3 is supported inside a frame 5 serving as a casing of the rotating machine, and the shaft 1 is supported together with bearings by brackets provided at both ends of the frame 5. As a current connecting means for supplying a current to the coil 4 from the outside, a terminal block 8 connected to the coil 4 and a nut 9 connected to the terminal block 8 are supported by the frame 5 via an insulating material or the like. And the terminal connection metal fitting 7 taken out of the frame 5.
[0017]
Conventionally, the force due to the thermal deformation of the coil 4 cannot be absorbed by the current connecting means side, and the rigidity of the current connecting means side restrains the deformation of the coil 4 as a reaction force and generates a large thermal stress. I was However, in the present invention, in order to reduce the thermal stress due to the thermal deformation of the coil 4, the shape of the highly rigid terminal fitting 7 is devised, and the terminal fitting 7 has an elastic function, so that the force due to the thermal deformation is increased. Is absorbed by the terminal fitting 7 to reduce the thermal stress.
[0018]
Specifically, by providing a curved portion or a bent portion or by using a spiral structure, the highly rigid terminal connection fitting 7 has an elastic function. This specific embodiment is shown in FIGS. Note that the present invention is not limited to only those shown in the drawings.
[0019]
FIG. 1 is a sectional view of an end of a motor showing an example of an embodiment according to the present invention.
[0020]
As shown in FIG. 1, in the present embodiment, the terminal connection fitting 17 a has a U-shaped shape that becomes a curved portion, instead of the terminal connection fitting 17 (see FIG. 5) that has been a straight rod. did. By having a U-shaped shape, the terminal fitting 7a can be easily deformed, and the terminal fitting 7a can have an elastic function. Therefore, the terminal connection fitting 7a itself can absorb the force due to the thermal deformation of the coil 4 at the time of the thermal deformation of the coil 4 by the U-shaped curved portion, making it difficult to restrain the thermal deformation of the coil 4, The thermal stress of the coil 4 can be reduced.
[0021]
FIG. 2 is a sectional view of an end of a motor showing another example of the embodiment according to the present invention.
[0022]
As shown in FIG. 2, in the present embodiment, the terminal fitting 7b has a U-shape to be a bent portion. By having a U-shape, the terminal fitting 7b can be easily deformed, and the terminal fitting 7b can have an elastic function. Therefore, when the coil 4 is thermally deformed, the terminal connection fitting 7b itself can absorb the force due to the thermal deformation of the coil 4 at the bent portion of the V-shape, thereby making it difficult to restrain the thermal deformation of the coil 4. In addition, the thermal stress of the coil 4 can be reduced.
[0023]
When connecting to the coil 4 using the terminal connection metal member 7a having a U-shape shown in FIG. 1, there is a part of the connection terminal metal member 7a further inside the terminal block 8 connected to the coil 4. When the distance between the rotor 2 and the stator 3 is small, the connection may be impossible. However, even in such a case, as shown in FIG. 2, the use of the terminal connection fitting 7b having a U-shape has an elastic function of reducing the thermal stress of the coil 4 and the terminal connection fitting 7b. Can be connected to the terminal fittings 7b without forming a straight bar.
[0024]
3A and 3B are end views of a motor showing another example of the embodiment according to the present invention, wherein FIG. 3A is a cross-sectional view, and FIG. 3B is a perspective view of a terminal fitting.
[0025]
As shown in FIG. 3, in the present embodiment, the terminal connection metal 7 c has a curved portion and a bent portion, so that the terminal connection metal 7 c is easily deformed, and the terminal connection metal 7 c has an elastic function. Can be. Specifically, the terminal connection fitting 7c has a crank shape in which one curved portion is sandwiched between two bent portions. In a diagram viewed from the front shown in FIG. In the perspective view shown in FIG. 3B, it looks as if two bar-shaped metal fittings were vertically arranged at the end of one curved portion.
[0026]
In the present invention, in order to give the terminal connection fitting as the current connection means an elastic function, the terminal connection fitting may have a configuration having one or more bending portions, or may have a configuration having one or more bending portions, A configuration having one or a plurality of curved portions and one or a plurality of bent portions may be employed, and the terminal connection fitting 7c shown in FIG. 3 is an example thereof.
[0027]
Due to the above structure, the terminal connection fitting 7c itself can absorb the force due to the thermal deformation of the coil 4 at the curved portion and the bent portion when the coil 4 is thermally deformed, and it is difficult to restrain the thermal deformation of the coil 4 Thus, the thermal stress of the coil 4 can be reduced.
[0028]
Even when the distance between the rotor 2 and the stator 3 is small, the use of the terminal fitting 7c of the present embodiment has an elastic function of reducing the thermal stress of the coil 4 and makes the terminal fitting 7c a straight rod. Without connecting, the coil 4 and the terminal connection fitting 7c can be connected.
[0029]
4A and 4B are end views of a motor showing another example of the embodiment according to the present invention, wherein FIG. 4A is a cross-sectional view, and FIG. 4B is a perspective view of a terminal fitting.
[0030]
As shown in FIG. 4, in the present embodiment, the terminal fitting 7d has a helical shape to be a helical portion. By having a helical shape, the terminal connection metal 7d can be easily deformed like a spring, and the terminal connection metal 7d can have an elastic function. Therefore, when the coil 4 is thermally deformed, the terminal connection fitting 7 d itself can absorb the force due to the thermal deformation of the coil 4 in the spiral portion, making it difficult to restrain the coil 4 from being thermally deformed. Stress can be reduced.
[0031]
Even when the distance between the rotor 2 and the stator 3 is small, the terminal connection fitting 7d of the present embodiment has an elastic function of reducing the thermal stress of the coil 4 and has a linear rod shape. Without connecting, the coil 4 and the terminal connection fitting 7d can be connected.
[0032]
In the embodiment shown in FIGS. 1 to 4, even if the direction of thermal deformation of the coil 4 is not only in the longitudinal direction of the shaft 1 but also in the circumferential direction and the normal direction of the shaft 1, The structure can cope with the deformation, and the thermal stress of the coil 4 can be further reduced by devising the connection direction of the terminal connection fitting 7 to the coil 4.
[0033]
【The invention's effect】
According to the present invention, a rotating machine has a coil disposed in a stator inside a housing, and current connection means for supplying a current to the coil, wherein the current connection means is configured to thermally deform the coil. Since the connecting terminal fittings have an elastic function so as to absorb the force of the coil, it is difficult for the connection terminal fitting to restrain the thermal deformation of the coil, so that the thermal stress of the coil itself can be reduced and the fatigue life can be extended. That is, the reliability of the rotating machine is improved, and long-term use is possible. In addition, since the stress acting as a load on the current connecting means can be reduced, the terminal block of the current connecting means can be miniaturized. Further, since the terminal fittings of the current connecting means have elasticity, positioning accuracy at the time of assembly can be improved. Can be assembled even if the height is low.
[Brief description of the drawings]
FIG. 1 is a sectional view of an end of a motor showing an example of an embodiment according to the present invention.
FIG. 2 is a sectional view of an end of a motor showing another example of the embodiment according to the present invention.
3A and 3B are end views of a motor showing another example of the embodiment according to the present invention, in which FIG. 3A is a cross-sectional view, and FIG. 3B is a perspective view of a terminal fitting.
4A and 4B are end views of a motor showing another example of the embodiment according to the present invention, wherein FIG. 4A is a cross-sectional view and FIG. 4B is a perspective view of a terminal fitting.
5A and 5B show a conventional motor, in which FIG. 5A is a side sectional view, and FIG. 5B is an end sectional view.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Shaft 2 Rotor 3 Stator 4 Coil 5 Frames 7a to 7d Terminal fitting 8 Terminal block 9 Nut

Claims (5)

筐体内部のステータ内に配設されたコイルと、前記コイルに電流を供給する電流接続手段とを有する回転機において、
前記電流接続手段が、前記コイルの熱変形による力を吸収するように、弾性機能を有することを特徴とする回転機。
In a rotating machine having a coil disposed in a stator inside a housing and current connecting means for supplying a current to the coil,
The rotating machine according to claim 1, wherein the current connection means has an elastic function so as to absorb a force due to thermal deformation of the coil.
請求項1記載の回転機において、
前記弾性機能として、前記電流接続手段が、湾曲部若しくは屈曲部のいずれか一方、又は、両方を有することを特徴とする回転機。
The rotating machine according to claim 1,
The rotating machine according to claim 1, wherein the current connection unit has one or both of a curved portion and a bent portion as the elastic function.
請求項2記載の回転機において、
前記湾曲部をU字状としたことを特徴とする回転機。
The rotating machine according to claim 2,
A rotating machine, wherein the curved portion has a U-shape.
請求項2記載の回転機において、
前記屈曲部をくの字状としたことを特徴とする回転機。
The rotating machine according to claim 2,
A rotating machine, wherein the bent portion is formed in a V shape.
請求項1記載の回転機において、
前記弾性機能として、前記電流接続手段がらせん部を有することを特徴とする回転機。
The rotating machine according to claim 1,
The rotating machine according to claim 1, wherein the current connecting means has a spiral portion as the elastic function.
JP2002200700A 2002-07-10 2002-07-10 Rotating machine Withdrawn JP2004048864A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009011106A (en) * 2007-06-29 2009-01-15 Sumitomo Electric Ind Ltd Connector unit, housing for rotary electric machine, and rotary electric machine
JP2009183070A (en) * 2008-01-31 2009-08-13 Hitachi Ltd Stator of rotating electrical machine and manufacturing method thereof
JP2010172101A (en) * 2009-01-22 2010-08-05 Asmo Co Ltd Circuit component
JP2011259654A (en) * 2010-06-11 2011-12-22 Toyota Motor Corp Rotary electric machine
JP2012528554A (en) * 2009-05-25 2012-11-12 スパル オートモーティブ ソチエタ レスポンサビリタ リミテ Electromechanical stator and method of making the same
WO2014198271A1 (en) * 2013-06-14 2014-12-18 Schaeffler Technologies Gmbh & Co. Kg Actuator having power electronics
JP2015146659A (en) * 2014-01-31 2015-08-13 日本電産株式会社 motor
WO2023026588A1 (en) * 2021-08-26 2023-03-02 株式会社Ihi Terminal connection structure of motor casing and rotating machine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009011106A (en) * 2007-06-29 2009-01-15 Sumitomo Electric Ind Ltd Connector unit, housing for rotary electric machine, and rotary electric machine
JP2009183070A (en) * 2008-01-31 2009-08-13 Hitachi Ltd Stator of rotating electrical machine and manufacturing method thereof
JP2010172101A (en) * 2009-01-22 2010-08-05 Asmo Co Ltd Circuit component
JP2012528554A (en) * 2009-05-25 2012-11-12 スパル オートモーティブ ソチエタ レスポンサビリタ リミテ Electromechanical stator and method of making the same
JP2015233409A (en) * 2009-05-25 2015-12-24 スパル オートモーティブ ソチエタ レスポンサビリタ リミテ Stator for electric machine and method for manufacturing the same
JP2011259654A (en) * 2010-06-11 2011-12-22 Toyota Motor Corp Rotary electric machine
WO2014198271A1 (en) * 2013-06-14 2014-12-18 Schaeffler Technologies Gmbh & Co. Kg Actuator having power electronics
JP2015146659A (en) * 2014-01-31 2015-08-13 日本電産株式会社 motor
WO2023026588A1 (en) * 2021-08-26 2023-03-02 株式会社Ihi Terminal connection structure of motor casing and rotating machine

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