JP2011254578A - Rotor for rotary electric machine - Google Patents

Rotor for rotary electric machine Download PDF

Info

Publication number
JP2011254578A
JP2011254578A JP2010124729A JP2010124729A JP2011254578A JP 2011254578 A JP2011254578 A JP 2011254578A JP 2010124729 A JP2010124729 A JP 2010124729A JP 2010124729 A JP2010124729 A JP 2010124729A JP 2011254578 A JP2011254578 A JP 2011254578A
Authority
JP
Japan
Prior art keywords
rotor
rotor body
rotating shaft
radiation paint
electrical machine
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
Application number
JP2010124729A
Other languages
Japanese (ja)
Inventor
Tetsuo Wakita
哲夫 脇田
Kuniaki Kuwabara
邦昭 桑原
Yasunobu Toyoda
泰延 豊田
Atsutoshi Ikegawa
敦俊 池川
Naoto Yumisashi
直人 弓指
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.)
Aisin Corp
Original Assignee
Aisin Seiki 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 Aisin Seiki Co Ltd filed Critical Aisin Seiki Co Ltd
Priority to JP2010124729A priority Critical patent/JP2011254578A/en
Publication of JP2011254578A publication Critical patent/JP2011254578A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

Abstract

PROBLEM TO BE SOLVED: To attain highly efficient cooling for the whole rotor with a simple structure.SOLUTION: The rotor for rotary electric machine includes: a rotor body 10 that is journaled to a case 30 by a rotating shaft 40 and is made up of a plurality of magnetic steel sheets 12 laminated in the axial direction of the rotating shaft 40; and permanent magnets 11 disposed inside the rotor body 10. The rotor is applied with thermal radiation coating 70 on an external surface.

Description

本発明は、回転軸によってケースに軸支されるとともに、前記回転軸の軸心方向に積層された複数の電磁鋼板により構成されるロータ本体と、前記ロータ本体の内部に配設される永久磁石とを備える回転電機用ロータに関する。   The present invention provides a rotor main body that is supported by a rotating shaft and supported by a case and that is composed of a plurality of electromagnetic steel plates stacked in the axial direction of the rotating shaft, and a permanent magnet disposed inside the rotor main body. And a rotor for a rotating electrical machine.

ロータ本体と永久磁石とを備えた回転電機用ロータは、各種回転電機の動力機構として利用されている。
ロータの永久磁石は、回転電機の出力に応じて発熱量が大きくなる。このような発熱が過大になると、永久磁石が減磁して回転電機のトルク低下を引き起こしたり、ロータ本体の電磁鋼板が破損する原因となるため、回転電機においては永久磁石とロータ本体とが冷却される場合がある。この種類の技術としては、例えば以下の特許文献１に記載されるものがある。 A rotor for a rotating electrical machine including a rotor body and a permanent magnet is used as a power mechanism for various rotating electrical machines.
The permanent magnet of the rotor generates a large amount of heat according to the output of the rotating electrical machine. If such heat generation becomes excessive, the permanent magnet will demagnetize and cause the torque of the rotating electrical machine to decrease, or the electromagnetic steel sheet of the rotor body may be damaged. May be. As this type of technology, for example, there is one described in Patent Document 1 below.

特開２００８−１７８２４３号公報JP 2008-178243 A

上記特許文献１に記載される回転電機のロータは、そのロータ本体に回転軸の軸心に沿う方向に貫通した冷媒流路を備えており、冷却オイル等の冷媒が当該冷媒流路を流通することによって、永久磁石が冷却されるように構成される。   The rotor of the rotating electrical machine described in Patent Document 1 includes a coolant channel that penetrates the rotor body in a direction along the axis of the rotation shaft, and a coolant such as cooling oil flows through the coolant channel. Thus, the permanent magnet is configured to be cooled.

しかし、上記ロータでは、永久磁石の冷却効果は高いものの、ロータ本体の冷却効果はそれほど高くはなく、ロータ全体の冷却効果を高めるという意味では改善する余地が残されている。この問題を解決するための一つの手段として、さらなる冷媒流路をロータ本体に追加して設けるということも考えられるが、そのための加工コストの大幅な増加や、ロータ本体の強度低下をもたらすこととなるため現実的ではない。つまり、より簡易な構成でロータ全体の冷却効果を高めることのできる技術が望まれている。
したがって、本発明の目的は、簡易な構成でロータ全体を効率良く冷却することにある。 However, in the above rotor, although the cooling effect of the permanent magnet is high, the cooling effect of the rotor body is not so high, and there is room for improvement in the sense of enhancing the cooling effect of the entire rotor. As one means for solving this problem, it is conceivable that an additional refrigerant flow path is additionally provided in the rotor body. However, this significantly increases the processing cost and reduces the strength of the rotor body. So it is not realistic. That is, a technique capable of enhancing the cooling effect of the entire rotor with a simpler configuration is desired.
Accordingly, an object of the present invention is to efficiently cool the entire rotor with a simple configuration.

本発明に係る回転電機用ロータの第１特徴構成は、回転軸によってケースに軸支されるとともに、前記回転軸の軸心方向に積層された複数の電磁鋼板により構成されるロータ本体と、前記ロータ本体の内部に配設される永久磁石とを備え、前記ロータ本体の外面に熱放射塗料を塗布してある点にある。   A first characteristic configuration of a rotor for a rotating electrical machine according to the present invention is a rotor body that is pivotally supported on a case by a rotating shaft and is composed of a plurality of electromagnetic steel plates stacked in the axial direction of the rotating shaft; A permanent magnet disposed inside the rotor body, and a heat radiation paint is applied to the outer surface of the rotor body.

〔作用及び効果〕
本構成のごとく、ロータ本体の外面に熱放射塗料を塗布しておけば、ロータ本体からの放熱が高められるため、ロータ本体の冷却効果が向上すると共に、永久磁石で生じた熱がロータ本体へと移行し易くなるため、永久磁石の冷却効果も向上する。即ち、熱放射塗料を塗布するという簡易な構成でロータ全体を効率良く冷却することができる。 [Action and effect]
If the thermal radiation paint is applied to the outer surface of the rotor body as in this configuration, the heat radiation from the rotor body is increased, so that the cooling effect of the rotor body is improved and the heat generated by the permanent magnet is applied to the rotor body. Therefore, the cooling effect of the permanent magnet is also improved. That is, the entire rotor can be efficiently cooled with a simple configuration in which the heat radiation coating is applied.

第２特徴構成は、前記熱放射塗料を前記ロータ本体の少なくとも両端面に塗布してある点にある。   The second characteristic configuration is that the thermal radiation paint is applied to at least both end faces of the rotor body.

〔作用及び効果〕
熱放射塗料をロータ本体の外周面に塗布してもロータ全体の冷却効果は向上し得る。しかしながら、本構成のごとく、熱放射塗料をロータ本体の少なくとも両端面に塗布すれば、ロータ全体の冷却効果が向上すると共に、ロータ本体とステータとの間の隙間をできるかぎり狭く設定することができ、その上、剥がれた塗料が当該隙間に挟まってロータ本体の回転障害を引き起こすこともない。 [Action and effect]
Even if the thermal radiation paint is applied to the outer peripheral surface of the rotor body, the cooling effect of the entire rotor can be improved. However, if the thermal radiation coating is applied to at least both end faces of the rotor body as in this configuration, the cooling effect of the entire rotor is improved and the gap between the rotor body and the stator can be set as narrow as possible. In addition, the peeled paint does not get into the gap and cause a rotation failure of the rotor body.

第３特徴構成は、前記熱放射塗料の塗布面が凹凸形状を有する点にある。   The third characteristic configuration is that the application surface of the thermal radiation paint has an uneven shape.

〔作用及び効果〕
本構成のごとく、熱放射塗料の塗布面が凹凸形状を有するものであれば、塗布面が平坦である場合と比べて表面積が大きいため、その放熱効果もより一層高いものとなる。 [Action and effect]
If the application surface of the heat radiation paint has an uneven shape as in this configuration, the surface area is larger than when the application surface is flat, and the heat dissipation effect is even higher.

第４特徴構成は、前記凹凸形状が、凹凸部を有する前記ロータ本体の両端面に前記熱放射塗料を塗布することによって形成される点にある。   A fourth characteristic configuration is that the concavo-convex shape is formed by applying the thermal radiation paint to both end faces of the rotor body having concavo-convex portions.

〔作用及び効果〕
本構成のごとく、ロータ本体の両端面が凹凸部を有するものであれば、熱放射塗料の塗布面が確実に凹凸形状となる。ここで、熱放射塗料の塗布面は、その膜厚を薄くするほど放熱効果が向上することが知られている。そのため、仮に同じ量の熱放射塗料を平坦面に塗布した場合と比べると、本構成の方が熱放射塗料の塗布面の膜厚を薄くすることができるため、放熱効果もよい高いものとなる。 [Action and effect]
If the both end surfaces of the rotor body have uneven portions as in this configuration, the application surface of the heat radiation paint is surely formed in the uneven shape. Here, it is known that the heat radiation effect of the application surface of the heat radiation paint is improved as the film thickness is reduced. Therefore, compared with the case where the same amount of heat radiation paint is applied to a flat surface, this configuration can reduce the film thickness of the heat radiation paint application surface, and therefore the heat dissipation effect is also high and high. .

第５特徴構成は、前記凹凸部が、前記ロータ本体の両端面において前記回転軸側から径方向外側に放射状に形成される点にある。   A fifth characteristic configuration is that the concave and convex portions are radially formed on both end surfaces of the rotor main body from the rotating shaft side to the radially outer side.

〔作用及び効果〕
ロータ本体の両端面では、その外周側の永久磁石が配置される位置での発熱量が多い。しかし、本構成のごとく、ロータ本体の両端面における凹凸部が回転軸側から径方向外側に放射状に形成されるものであれば、外周側で発生した熱が、回転軸側に熱移動し易くなる。その結果、熱が凹凸部の全体に伝わり易く放熱効果がさらに向上する。また、凹凸部がフィンの役割を果たして、ロータ本体の側面の気流がより攪拌されるようになるため、放熱が促進されて、冷却効果が向上する。 [Action and effect]
On both end faces of the rotor body, there is a large amount of heat generated at the positions where the outer peripheral permanent magnets are arranged. However, as in this configuration, if the uneven portions on both end faces of the rotor body are formed radially outward from the rotating shaft side, the heat generated on the outer peripheral side is easily transferred to the rotating shaft side. Become. As a result, heat is easily transmitted to the entire uneven portion, and the heat dissipation effect is further improved. Moreover, since the uneven part serves as a fin and the airflow on the side surface of the rotor body is further agitated, heat dissipation is promoted and the cooling effect is improved.

本発明に係るロータを備える回転電機の断面図である。It is sectional drawing of a rotary electric machine provided with the rotor which concerns on this invention. ロータ本体の端面の正面図である。It is a front view of the end surface of a rotor main body. ロータ本体の端面の拡大断面図である。It is an expanded sectional view of the end surface of a rotor body. ロータの分解斜視図である。It is a disassembled perspective view of a rotor. ロータ本体の端面の別形態を示す斜視図である。It is a perspective view which shows another form of the end surface of a rotor main body. ロータ本体の端面の別形態を示す斜視図である。It is a perspective view which shows another form of the end surface of a rotor main body. ロータ本体の外周面の別形態を示す断面図である。It is sectional drawing which shows another form of the outer peripheral surface of a rotor main body.

図１に示した断面図、図２に示した正面図、図３に示した断面図、及び図４に示した分解斜視図に基づいて、本発明に係るロータ９を電動モータ１に適用した場合の実施形態について説明する。尚、図１における破線の矢印は冷媒の流れを示す。   The rotor 9 according to the present invention is applied to the electric motor 1 based on the cross-sectional view shown in FIG. 1, the front view shown in FIG. 2, the cross-sectional view shown in FIG. 3, and the exploded perspective view shown in FIG. Embodiments will be described. In addition, the arrow of the broken line in FIG. 1 shows the flow of the refrigerant.

電動モータ１は永久磁石型モータであり、ハイブリッド車や電気自動車の駆動源として利用可能なものである。電動モータ１は、回転軸４０によってケース３０に軸支されるロータ本体１０とその内部に配設される永久磁石１１とを有するロータ９と、ロータ９の径方向外側に配置され、且つケース３０に固定されるステータ２０とを備えて構成される。ケース３０は、図１において左側部分を構成するケース部材３０ａと、右側部分を構成するケース部材３０ｂとを接合して構成される。   The electric motor 1 is a permanent magnet type motor and can be used as a drive source for a hybrid vehicle or an electric vehicle. The electric motor 1 is disposed on the outer side in the radial direction of the rotor 9, the rotor 9 having a rotor body 10 that is pivotally supported on the case 30 by the rotating shaft 40, and the permanent magnet 11 disposed therein. And a stator 20 fixed to the head. The case 30 is configured by joining a case member 30a constituting the left side portion and a case member 30b constituting the right side portion in FIG.

ロータ本体１０は、プレス加工により円周方向に等間隔に打ち抜き穴を作製した複数の電磁鋼板１２を、回転軸４０の軸心に沿う方向に積層させて構成されるものである。ロータ本体１０の円周方向には等間隔に複数の冷媒用流路１０ａが形成される。   The rotor body 10 is configured by laminating a plurality of electromagnetic steel plates 12 having punched holes formed at equal intervals in the circumferential direction by pressing in a direction along the axis of the rotary shaft 40. In the circumferential direction of the rotor body 10, a plurality of refrigerant flow paths 10a are formed at equal intervals.

冷媒用流路１０ａの径方向外側には永久磁石１１が配置されている。これらは、ロータ本体１０に接着固定される。冷却オイル等の冷媒が冷媒用流路１０ａを流れて排出口１０ｂから排出される間に、永久磁石１１とロータ本体１０の熱が冷媒により回収されるため、永久磁石１１が高温により減磁するのを抑えることができる。   A permanent magnet 11 is arranged on the radially outer side of the refrigerant flow path 10a. These are bonded and fixed to the rotor body 10. While the refrigerant such as cooling oil flows through the refrigerant flow path 10a and is discharged from the discharge port 10b, the heat of the permanent magnet 11 and the rotor body 10 is recovered by the refrigerant, so that the permanent magnet 11 is demagnetized due to the high temperature. Can be suppressed.

ステータ２０は、ロータ９と同様に、複数の電磁鋼板２２を積層させて構成される。ステータ２０にはコイル２１が配置され、コイル２１に通電を行うことにより、ステータ２０に磁界が発生して、ロータ９が回転する。   The stator 20 is configured by laminating a plurality of electromagnetic steel plates 22 like the rotor 9. A coil 21 is disposed in the stator 20. When the coil 21 is energized, a magnetic field is generated in the stator 20 and the rotor 9 rotates.

回転軸４０は、ケース３０に設けられた一対のベアリング３１を介してケース３０に軸支される。回転軸４０は、内部空間４０ａを有する円筒状に構成されるとともに、周方向に複数形成された連通孔４０ｂを有している。回転軸４０の一端には、回転軸４０と同軸心上に一体回転する出力軸４１が接続されている。回転軸４０と同様に、出力軸４１は内部空間４１ａを有して円筒状に構成される。図示しないポンプより送られる冷媒は、出力軸４１の内部空間４１ａを経由して、回転軸４０の内部空間４０ａに導入される。尚、回転軸４０と出力軸４１とを一部材として構成してもよい。   The rotating shaft 40 is pivotally supported on the case 30 via a pair of bearings 31 provided on the case 30. The rotary shaft 40 is configured in a cylindrical shape having an internal space 40a and has a plurality of communication holes 40b formed in the circumferential direction. One end of the rotating shaft 40 is connected to an output shaft 41 that rotates integrally with the rotating shaft 40 on the same axis. Similar to the rotating shaft 40, the output shaft 41 has an internal space 41a and is formed in a cylindrical shape. A refrigerant sent from a pump (not shown) is introduced into the internal space 40 a of the rotating shaft 40 via the internal space 41 a of the output shaft 41. In addition, you may comprise the rotating shaft 40 and the output shaft 41 as one member.

ロータ本体１０の端面１０ｃにはプレート部材６０が取り付けられる。プレート部材６０に形成された連通空間６０ａは、回転軸４０の連通孔４０ｂとロータ本体１０の冷媒用流路１０ａとを接続し、冷媒が回転軸４０の内部空間４０ａから冷媒用流路１０ａに流れることができるよう構成されている。プレート部材６０は、ロータ本体１０の端面に接着や溶接等の適当な手段で取り付けることができるが、プレート部材６０とロータ本体１０との間に冷媒漏れを防止する弾性部材等を設けると好適である。   A plate member 60 is attached to the end surface 10 c of the rotor body 10. The communication space 60 a formed in the plate member 60 connects the communication hole 40 b of the rotating shaft 40 and the refrigerant flow path 10 a of the rotor body 10, and the refrigerant flows from the internal space 40 a of the rotating shaft 40 to the refrigerant flow path 10 a. It is configured to be able to flow. The plate member 60 can be attached to the end surface of the rotor body 10 by an appropriate means such as adhesion or welding, but it is preferable to provide an elastic member or the like for preventing refrigerant leakage between the plate member 60 and the rotor body 10. is there.

図１に示すように、ロータ本体１０の両端面１０ｃ，１０ｄに熱放射塗料７０を塗布してある。これにより、ロータ本体１０からの放熱が高められるため、ロータ本体１０の冷却効果が向上する。同時に、永久磁石１１で生じた熱がロータ本体１０へと移行し易くなるため、永久磁石１１の冷却効果もさらに向上する。   As shown in FIG. 1, a heat radiation paint 70 is applied to both end faces 10 c and 10 d of the rotor body 10. Thereby, since the heat radiation from the rotor body 10 is enhanced, the cooling effect of the rotor body 10 is improved. At the same time, since the heat generated in the permanent magnet 11 is easily transferred to the rotor body 10, the cooling effect of the permanent magnet 11 is further improved.

熱放射塗料７０は、ロータ本体１０の両端面１０ｃ，１０ｄだけでなく、より冷却効果を高めるために必要に応じてその外周面１０ｅに塗布してもよい。また、熱放射塗料７０の乾燥後の膜厚は特に限定されるものではないが、放熱効果を向上させるためにできる限り薄くした方が良い。   The thermal radiation paint 70 may be applied not only to the both end faces 10c and 10d of the rotor body 10, but also to the outer peripheral face 10e as necessary in order to enhance the cooling effect. Moreover, the film thickness after drying of the heat radiation paint 70 is not particularly limited, but it is better to make it as thin as possible in order to improve the heat dissipation effect.

本発明に適用可能な熱放射塗料７０としては、例えば、Ａｌ2Ｏ3，ＳｉＯ2，ＴｉＯ2などの金属酸化物セラミックスを主成分とする遠赤外線輻射塗料が挙げられる。しかし、これに限定されるものではなく、全波長域で放射率の良い熱放射塗料を用いることが望ましい。 Examples of the heat radiation paint 70 applicable to the present invention include a far-infrared radiation paint mainly composed of metal oxide ceramics such as Al 2 O 3 , SiO 2 , and TiO 2 . However, the present invention is not limited to this, and it is desirable to use a thermal radiation paint having a high emissivity in the entire wavelength region.

ロータ本体１０の両端面１０ｃ，１０ｄは平坦であっても良いが、図２〜図４に示すように、ロータ本体１０の両端面１０ｃ，１０ｄのそれぞれに、回転軸４０側から径方向外側に向かって放射状に延びる凹凸部８０を形成すると、熱放射塗料７０の塗布面が凹凸形状となり、塗布面が平坦である場合と比べて表面積が大きくなるため、放熱効果がより一層高いものとなる。   Both end surfaces 10c and 10d of the rotor body 10 may be flat, but as shown in FIGS. 2 to 4, the both end surfaces 10c and 10d of the rotor body 10 are radially outward from the rotating shaft 40 side. When the uneven portion 80 that extends radially is formed, the application surface of the heat radiation coating 70 has an uneven shape, and the surface area becomes larger as compared with the case where the application surface is flat, so that the heat dissipation effect is further enhanced.

尚、両端面１０ｃ，１０ｄの凹凸部８０の形状については、図２及び図４に示す放射状に限定されるものではなく、例えば、図５に示すように回転軸４０側から径方向外側に向かって渦巻き状に形成されたものや、あるいは図６に示すように回転軸４０の軸心を中心として同心円状に形成されたものであっても良い。ただし、図２及び図４のように放射状に形成したものであれば、図５に示す渦巻き状や図６に示す同心円状に比べて、外周側の永久磁石１１で発生した熱が回転軸４０側に熱移動し易くなる。その結果、熱が凹凸部８０の全体に伝わり易く放熱効果がさらに向上する。また、凹凸部８０がフィンの役割を果たして、ロータ本体１０の側面の気流がより攪拌されるようになるため、放熱が促進されて、冷却効果が向上する。   The shape of the concavo-convex portions 80 on both end faces 10c and 10d is not limited to the radial shape shown in FIGS. 2 and 4, and for example, as shown in FIG. It may be formed in a spiral shape, or may be formed concentrically around the axis of the rotating shaft 40 as shown in FIG. However, if it is formed radially as shown in FIGS. 2 and 4, the heat generated by the permanent magnet 11 on the outer peripheral side is larger than that of the spiral shape shown in FIG. 5 or the concentric shape shown in FIG. 6. Heat transfer to the side. As a result, heat can be easily transferred to the entire concavo-convex portion 80, and the heat dissipation effect is further improved. Moreover, since the uneven | corrugated | grooved part 80 plays the role of a fin and the airflow of the side surface of the rotor main body 10 comes to be stirred more, heat dissipation is accelerated | stimulated and the cooling effect improves.

図示しないが、ロータ本体１０の両端面１０ｃ，１０ｄが凹凸のない平坦なものにおいて、その両端面１０ｃ，１０ｄに熱放射塗料７０を塗布して乾燥させ、半乾きの状態で凹凸形状を有する型を押し当てて乾燥固化することによって、凹凸形状を形成するようにしても良い。   Although not shown, when both end faces 10c, 10d of the rotor body 10 are flat without unevenness, a heat radiation paint 70 is applied to the both end faces 10c, 10d and dried, and the mold has an uneven shape in a semi-dry state. An uneven shape may be formed by pressing and solidifying by pressing.

図７に示すように、ロータ本体１０の電磁鋼板１２として大径の電磁鋼板１２ａと小径の電磁鋼板１２ｂとを使用し、それらを交互に配置することによって、ロータ本体１０の外周面１０ｅに凹凸を形成するようにしても良い。   As shown in FIG. 7, a large-diameter electromagnetic steel plate 12a and a small-diameter electromagnetic steel plate 12b are used as the electromagnetic steel plate 12 of the rotor body 10, and the outer peripheral surface 10e of the rotor body 10 is uneven by arranging them alternately. May be formed.

また、図１に示すように、ロータ本体１０の両端面１０ｃ，１０ｄのうち少なくともいずれか一方に相対する位置に赤外線温度センサー９０を設置するようにしても良い。本実施形態では、ロータ本体１０の端面１０ｃに相対するようにケース部材３０ｂに赤外線温度センサー９０を設けているが、もう一方の端面１０ｄに相対するようにケース部材３０ａに設けても良いし、無論、両方のケース部材３０ａ，３０ｂに設けるようにしても良い。   In addition, as shown in FIG. 1, an infrared temperature sensor 90 may be installed at a position facing at least one of both end faces 10 c and 10 d of the rotor body 10. In the present embodiment, the infrared temperature sensor 90 is provided on the case member 30b so as to face the end surface 10c of the rotor body 10, but may be provided on the case member 30a so as to face the other end surface 10d. Of course, you may make it provide in both case members 30a and 30b.

ロータ９では、熱放射塗料７０を塗布することで赤外線の放出が促されるため、赤外線温度センサー９０がロータ９から発せられる赤外線を検知し易く、その結果として、ロータ９の温度を非接触で的確に測定することができる。これにより、使用限界温度付近までロータ９を高速回転させることが可能となり、ロータ９の性能を最大限まで利用することができるようになるため、ロータ９を小型化して、製造コストを削減することができる。   In the rotor 9, since the infrared radiation is promoted by applying the thermal radiation paint 70, the infrared temperature sensor 90 can easily detect the infrared light emitted from the rotor 9, and as a result, the temperature of the rotor 9 can be accurately determined without contact. Can be measured. As a result, the rotor 9 can be rotated at high speed to near the use limit temperature, and the performance of the rotor 9 can be utilized to the maximum. Therefore, the rotor 9 can be reduced in size and the manufacturing cost can be reduced. Can do.

尚、赤外線温度センサー９０の設置位置については、上述の位置に限定されるものではなく、ロータ９の温度と、赤外線温度センサー９０の設置位置における赤外線量との相関関係を把握している場合であれば、たとえ熱放射塗料７０の塗布面に相対する位置でなくとも設置することができる。   Note that the installation position of the infrared temperature sensor 90 is not limited to the above-described position, and the correlation between the temperature of the rotor 9 and the amount of infrared rays at the installation position of the infrared temperature sensor 90 is known. If it exists, it can be installed even if it is not at a position opposite to the application surface of the thermal radiation paint 70.

本発明は、ハイブリッド車や電機自動車の駆動源となる電動モータ等の回転電機において利用可能である。   The present invention can be used in a rotating electric machine such as an electric motor serving as a drive source for a hybrid vehicle or an electric vehicle.

９ ロータ
１０ ロータ本体
１０ｃ，１０ｄ端面
１１ 永久磁石
１２ 電磁鋼板
３０ ケース
４０ 回転軸
７０ 熱放射塗料
８０ 凹凸部 9 Rotor 10 Rotor body 10c, 10d end face 11 Permanent magnet 12 Electromagnetic steel sheet 30 Case 40 Rotating shaft 70 Thermal radiation paint 80 Concavity and convexity

Claims (5)

回転軸によってケースに軸支されるとともに、前記回転軸の軸心方向に積層された複数の電磁鋼板により構成されるロータ本体と、前記ロータ本体の内部に配設される永久磁石とを備え、
前記ロータ本体の外面に熱放射塗料を塗布してある回転電機用ロータ。 A rotor body that is pivotally supported on the case by a rotating shaft and is composed of a plurality of electromagnetic steel plates stacked in the axial direction of the rotating shaft, and a permanent magnet disposed inside the rotor body,
A rotor for a rotating electrical machine in which a heat radiation paint is applied to an outer surface of the rotor body. 前記熱放射塗料を前記ロータ本体の少なくとも両端面に塗布してある請求項１に記載の回転電機用ロータ。   The rotor for a rotating electrical machine according to claim 1, wherein the thermal radiation paint is applied to at least both end faces of the rotor body. 前記熱放射塗料の塗布面が凹凸形状を有する請求項２に記載の回転電機用ロータ。   The rotor for a rotating electrical machine according to claim 2, wherein an application surface of the thermal radiation paint has an uneven shape. 前記凹凸形状が、凹凸部を有する前記ロータ本体の両端面に前記熱放射塗料を塗布することによって形成されたものである請求項３に記載の回転電機用ロータ。   4. The rotor for a rotating electrical machine according to claim 3, wherein the uneven shape is formed by applying the thermal radiation paint to both end faces of the rotor body having an uneven portion. 前記凹凸部が、前記ロータ本体の両端面において前記回転軸側から径方向外側に放射状に形成される請求項４に記載の回転電機用ロータ。   The rotor for a rotating electrical machine according to claim 4, wherein the concavo-convex portions are radially formed on the both end surfaces of the rotor body radially outward from the rotating shaft side.
JP2010124729A 2010-05-31 2010-05-31 Rotor for rotary electric machine Pending JP2011254578A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010124729A JP2011254578A (en) 2010-05-31 2010-05-31 Rotor for rotary electric machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010124729A JP2011254578A (en) 2010-05-31 2010-05-31 Rotor for rotary electric machine

Publications (1)

Publication Number Publication Date
JP2011254578A true JP2011254578A (en) 2011-12-15

Family

ID=45418026

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010124729A Pending JP2011254578A (en) 2010-05-31 2010-05-31 Rotor for rotary electric machine

Country Status (1)

Country Link
JP (1) JP2011254578A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015155744A (en) * 2014-02-21 2015-08-27 Nok株式会社 dust seal
EP3379696A1 (en) * 2017-03-21 2018-09-26 Siemens Aktiengesellschaft Synchronous reluctance machine
JP2021525498A (en) * 2018-06-14 2021-09-24 レイセオン カンパニー How to transfer heat across a rotary joint

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6325033A (en) * 1986-07-18 1988-02-02 旭化成株式会社 Laminated film
JPH0438148A (en) * 1990-05-31 1992-02-07 Mitsuba Electric Mfg Co Ltd Generator for vehicle
JPH1080099A (en) * 1996-09-03 1998-03-24 Ebara Corp Motor
JP2002136051A (en) * 2000-10-30 2002-05-10 Isuzu Motors Ltd Rotating machine and rotor thereof
JP2005287232A (en) * 2004-03-30 2005-10-13 Toyota Motor Corp Outer rotor motor
JP2008167574A (en) * 2006-12-28 2008-07-17 Meidensha Corp Permanent magnet rotary electric machine
JP2009516499A (en) * 2005-11-23 2009-04-16 デーウー・エレクトロニクス・コーポレイション Motor rotor with cooling function

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6325033A (en) * 1986-07-18 1988-02-02 旭化成株式会社 Laminated film
JPH0438148A (en) * 1990-05-31 1992-02-07 Mitsuba Electric Mfg Co Ltd Generator for vehicle
JPH1080099A (en) * 1996-09-03 1998-03-24 Ebara Corp Motor
JP2002136051A (en) * 2000-10-30 2002-05-10 Isuzu Motors Ltd Rotating machine and rotor thereof
JP2005287232A (en) * 2004-03-30 2005-10-13 Toyota Motor Corp Outer rotor motor
JP2009516499A (en) * 2005-11-23 2009-04-16 デーウー・エレクトロニクス・コーポレイション Motor rotor with cooling function
JP2008167574A (en) * 2006-12-28 2008-07-17 Meidensha Corp Permanent magnet rotary electric machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015155744A (en) * 2014-02-21 2015-08-27 Nok株式会社 dust seal
EP3379696A1 (en) * 2017-03-21 2018-09-26 Siemens Aktiengesellschaft Synchronous reluctance machine
WO2018172033A1 (en) * 2017-03-21 2018-09-27 Siemens Aktiengesellschaft Synchronous reluctance machine
US10903707B2 (en) 2017-03-21 2021-01-26 Siemens Aktiengesellschaft Synchronous reluctance machine
JP2021525498A (en) * 2018-06-14 2021-09-24 レイセオン カンパニー How to transfer heat across a rotary joint

Similar Documents

Publication Publication Date Title
CN102340199B (en) Motor with heat pipes
WO2015019402A1 (en) Permanent magnet embedded type rotating electric machine
EP3379701B1 (en) Motor rotor support frame and motor
WO2013132935A1 (en) Rotating electric machine
JP6059906B2 (en) Axial gap type rotating electrical machine
JP5951131B2 (en) Rotating electric machine
WO2014174721A1 (en) Induction machine
JP2016220375A (en) Axial gap type motor generator
JP2011254578A (en) Rotor for rotary electric machine
JP2012161134A (en) Rotary electric machine
JP2008220014A (en) Rotor of rotating electrical machine
WO2014024288A1 (en) Electric motor
KR102216135B1 (en) A rotor assembly for motor
JP6151668B2 (en) Rotor for rotating electrical machines
JP2008167574A (en) Permanent magnet rotary electric machine
JP6319416B1 (en) Permanent magnet rotating electric machine
US10608504B2 (en) Rotary electric machine
JP2011193623A (en) Rotary electric machine
JP2015216715A (en) Axial gap type rotary electric machine
JP2013198239A (en) Rotary electric machine
CN109219917A (en) Motor with thermal siphon
JP6332431B1 (en) Permanent magnet rotating electric machine
JP2015226376A (en) Axial gap motor
JP2021170877A (en) Rotary electric machine
JP2010246184A (en) Rotor and motor

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20130410

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20140331

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20140410

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20140731