JPH0562176U - Fully closed induction motor for vehicle - Google Patents
Fully closed induction motor for vehicleInfo
- Publication number
- JPH0562176U JPH0562176U JP659892U JP659892U JPH0562176U JP H0562176 U JPH0562176 U JP H0562176U JP 659892 U JP659892 U JP 659892U JP 659892 U JP659892 U JP 659892U JP H0562176 U JPH0562176 U JP H0562176U
- Authority
- JP
- Japan
- Prior art keywords
- vehicle
- hollow shaft
- induction motor
- motor
- cooling
- 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
- 230000006698 induction Effects 0.000 title claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 24
- 230000000694 effects Effects 0.000 abstract description 4
- 239000004020 conductor Substances 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Motor Or Generator Frames (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
(57)【要約】
【目的】 車両用誘導電動機の軸受嵌着部付近の中空軸
の冷却効果を高め、電動機の小形軽量化を図ることにあ
る。
【構成】 たわみ板継手をもち回転子軸を中空軸とした
車両用全閉形誘導電動機において、前記中空軸の少なく
とも冷却ファン側の軸受嵌着部付近の内径側に、冷却フ
ィンを嵌着し、冷却表面積を増加した構成である。
(57) [Abstract] [Purpose] To improve the cooling effect of the hollow shaft in the vicinity of the bearing fitting portion of the induction motor for a vehicle, and to reduce the size and weight of the motor. [Composition] In a vehicle full-closed induction motor having a flexible plate joint and a rotor shaft being a hollow shaft, a cooling fin is fitted to at least an inner diameter side of the hollow shaft near a bearing fitting part on the cooling fan side, This is a configuration with an increased cooling surface area.
Description
【０００１】[0001]
本考案は、鉄道電気車両主電動機として使用される全閉形誘導電動機に関する ものである。 The present invention relates to a full-closed induction motor used as a main motor of a railway electric vehicle.
【０００２】[0002]
近年絶縁物の耐熱温度が向上し、ポリイミドフィルムやポリイミド樹脂を使用 した絶縁システムでは、耐熱温度は 200℃を越えるシステムもある。 ところが、メンテナンスフリーをめざす全閉形誘導電動機では、開放形誘導電 動機に比べて電動機内部の各部温度が同じ温度に近づく傾向にあり、従ってもっ とも耐熱温度の低い部分を基準に各部の温度を抑えている。 すなわち、全閉形誘導電動機の場合、回転子を支える軸受およびその潤滑のた めのグリースは、コイルの絶縁物の耐熱温度に比べ低く、現在約 100℃程度が限 度である。 これがために、電機子軸を中空にして冷却風を通すなどして軸受の温度の低減 を図っている。 In recent years, the heat-resistant temperature of insulators has improved, and in some insulation systems that use polyimide film or polyimide resin, the heat-resistant temperature exceeds 200 ° C in some systems. However, in a fully-closed induction motor, which is aimed at maintenance-free, the temperature inside each part of the motor tends to approach the same temperature as compared to the open-type induction motor, and therefore the temperature of each part is suppressed based on the part with the lowest heat resistance temperature. ing. That is, in the case of a fully-closed induction motor, the bearings that support the rotor and the grease for its lubrication are lower than the heat-resistant temperature of the coil insulator, and the current limit is about 100 ° C. For this reason, the temperature of the bearing is reduced by making the armature shaft hollow and passing cooling air.
【０００３】[0003]
しかしながら、十分な効果は得ることはできず電動機全体の温度を下げるため には導体を太くしたり、鉄心断面を大きくするなどが必要となり容易に小形軽量 化ができない。 本考案は上述した点に鑑みて創案されたもので、その目的とするところは中空 軸の冷却効果を高め、小形軽量化を図る車両用全閉形誘導機を提供するものであ る。 However, sufficient effects cannot be obtained, and conductors must be thickened or the core cross section must be enlarged to reduce the temperature of the entire motor, and it is not possible to easily reduce the size and weight. The present invention was created in view of the above-mentioned points, and an object of the present invention is to provide a fully-closed induction machine for a vehicle, which enhances the cooling effect of the hollow shaft and is small and lightweight.
【０００４】[0004]
つまり、その目的を達成するための手段は、たわみ板継手をもち回転子軸を中 空軸しとた車両用全閉形誘導電動機において、前記中空軸の少なくとも冷却ファ ン側の軸受嵌着部付近の内径側に冷却フィンを嵌着した構成とするものである。 In other words, the means for achieving the object is to use a fully-closed induction motor for a vehicle having a flexible plate joint and a rotor shaft as a hollow shaft, in the vicinity of a bearing fitting portion of at least the cooling fan side of the hollow shaft. The cooling fins are fitted on the inner diameter side of the.
【０００５】[0005]
電動機が回転することによりたわみ板が回転したわみ板付近の空気圧が負圧に なり、空気は反たわみ板の方からたわみ板側に向け中空軸の中を流れ、中空軸の 内壁から熱をうばって電動機外へ排出するとともに、軸受付近の内径に冷却ファ ンを配設することにより、さらに効果的に軸受部分を冷却することになる。 As the electric motor rotates, the air pressure in the vicinity of the deflection plate that rotates the deflection plate becomes negative, and the air flows from the anti-deflection plate toward the deflection plate side through the hollow shaft, and heat is dissipated from the inner wall of the hollow shaft. And the cooling fan is disposed in the inner diameter near the bearing, the bearing portion can be cooled more effectively.
【０００６】[0006]
本考案の一実施例を図面に基づいて詳述する。 図１は本考案の車両用全閉形誘導電動機の断面図で、１は電動機枠、２は固定 子、３は回転子、４は回転子３の中空軸、５，６は軸受、７は冷却ファン、８は 可撓継手腕、９は可撓継手たわみ板、10は冷却フィン、11は電動機内部空気循環 用配管で場合により冷却器とすることもある。12は中空軸内を通過する空気の流 れである。 また、冷却フイン10の一実施例を図２に示す。 図１において、中空軸４の軸方向に通風し得るよう軸方向に冷却フィン10を設 け、良熱伝導性材質（例えば、アルミニュウム材）を用いて構成し、中空軸４内 に圧入などにより固定されてなる。 An embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a sectional view of a fully closed induction motor for a vehicle according to the present invention, in which 1 is a motor frame, 2 is a stator, 3 is a rotor, 4 is a hollow shaft of the rotor 3, 5 and 6 are bearings, and 7 is cooling. A fan, 8 flexible joint arms, 9 flexible joint flexural plates, 10 cooling fins, and 11 an electric motor internal air circulation pipe may be a cooler in some cases. 12 is the flow of air passing through the hollow shaft. An example of the cooling fin 10 is shown in FIG. In FIG. 1, cooling fins 10 are provided in the axial direction of the hollow shaft 4 so that air can be ventilated in the axial direction, and the cooling fin 10 is made of a material having good thermal conductivity (for example, an aluminum material). It is fixed.
【０００７】 全閉形誘導電動機においては、中空軸４に装着した冷却ファン７により電動機 内部の空気を循環させるので、電動機内部の温度分布は冷却ファン近辺が最も高 い状態にある。 したがって、回転子軸の中空軸内に配設する冷却フィン10は、中空軸内全長に わたり、あるいは分散して配設することが考えられるが、少なくとも最も温度上 昇の高い冷却ファン７側の軸受部に配設することが最も効果的である。In the fully-closed induction motor, since the cooling fan 7 mounted on the hollow shaft 4 circulates the air inside the motor, the temperature distribution inside the motor is highest near the cooling fan. Therefore, the cooling fins 10 arranged in the hollow shaft of the rotor shaft may be arranged over the entire length of the hollow shaft or distributed, but at least the cooling fan 7 side with the highest temperature rise is provided. It is most effective to dispose on the bearing portion.
【０００８】[0008]
以上に述べたごとく本考案によれば、電動機の他の部分に比べ温度を低く抑え る必要のある軸受部の放熱を良くすることができ、従って軸受部の温度を下げる ことができ、全閉の電動機は全述のごとく電動機各部の温度が大きく変らないよ うになるが、本考案のように、軸受部分を積極的に冷却すことにより、従来のご とく導体を太くしたりして電動機全体の損失を下げることなく軸受部の許容温度 内で電動機の小形軽量化を図ることが可能となる。 特に、車両用電動機は車両台車枠内に装着され、占有容積を制限されるため、 本考案により電動機の外形寸法を縮小することができる点に効果がある。 As described above, according to the present invention, it is possible to improve the heat dissipation of the bearing part, which needs to keep the temperature lower than the other parts of the motor, and therefore it is possible to lower the temperature of the bearing part and fully close it. As described above, the temperature of each part of the electric motor does not change significantly, but as in the present invention, by positively cooling the bearing part, the conventional conductor is made thicker and the whole electric motor is made thicker. It is possible to reduce the size and weight of the electric motor within the allowable temperature range of the bearing without reducing the loss. In particular, the electric motor for a vehicle is mounted within the bogie frame of the vehicle and its occupied volume is limited. Therefore, the present invention is effective in that the external dimensions of the electric motor can be reduced.
【０００９】[0009]
【図１】本考案の一実施例を示す車両用全閉形誘導点動
機の軸方向断面図である。FIG. 1 is an axial sectional view of a fully-closed induction point motor for a vehicle according to an embodiment of the present invention.
【図２】本考案の冷却フィンの斜視図である。FIG. 2 is a perspective view of a cooling fin of the present invention.
【００１０】[0010]
【符号の説明】 １ 電動機枠 ２ 固定子 ３ 回転子 ４ 中空軸 ５ 軸受 ６ 軸受 ７ 冷却ファン ８ 可撓継手腕 ９ 可撓継手たわみ板 10 冷却フィン 11 空気循環用配管 12 空気の流れ[Explanation of symbols] 1 motor frame 2 stator 3 rotor 4 hollow shaft 5 bearing 6 bearing 7 cooling fan 8 flexible joint arm 9 flexible joint flexure plate 10 cooling fin 11 air circulation pipe 12 air flow
Claims (1)
した車両用全閉形誘導電動機とおいて、前記中空軸の少
なくとも冷却ファン側の軸受嵌着部付近の内径側に、冷
却ファンを嵌着したことを特徴とする車両用全閉形誘導
電動機。1. A fully-closed induction motor for a vehicle having a flexible plate joint and a rotor shaft being a hollow shaft, wherein a cooling fan is fitted on at least an inner diameter side of the hollow shaft near a bearing fitting portion on the cooling fan side. A fully closed induction motor for a vehicle, which is characterized by being worn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP659892U JPH0562176U (en) | 1992-01-22 | 1992-01-22 | Fully closed induction motor for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP659892U JPH0562176U (en) | 1992-01-22 | 1992-01-22 | Fully closed induction motor for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0562176U true JPH0562176U (en) | 1993-08-13 |
Family
ID=11642773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP659892U Pending JPH0562176U (en) | 1992-01-22 | 1992-01-22 | Fully closed induction motor for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0562176U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4786702B2 (en) * | 2006-02-16 | 2011-10-05 | 三菱電機株式会社 | Cooling structure of rotating electric machine |
| WO2013102991A1 (en) * | 2012-01-05 | 2013-07-11 | 株式会社 東芝 | Hoisting machine, and rotating electrical machine provided with same |
| FR3011143A1 (en) * | 2013-09-25 | 2015-03-27 | Alstom Transport Sa | TREE OF AN ELECTRIC MACHINE ROTOR WITH AT LEAST ONE AIR FLOW CREATING A FLOW INSIDE THE TREE, ROTOR COMPRISING SUCH A SHAFT AND ELECTRIC MACHINE COMPRISING SUCH A ROTOR |
| JP2015193438A (en) * | 2014-03-31 | 2015-11-05 | 三菱電機株式会社 | Hoist for elevator |
| JP2021125986A (en) * | 2020-02-06 | 2021-08-30 | 西芝電機株式会社 | How to remove rotary electric machine and laminated disk |
-
1992
- 1992-01-22 JP JP659892U patent/JPH0562176U/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4786702B2 (en) * | 2006-02-16 | 2011-10-05 | 三菱電機株式会社 | Cooling structure of rotating electric machine |
| WO2013102991A1 (en) * | 2012-01-05 | 2013-07-11 | 株式会社 東芝 | Hoisting machine, and rotating electrical machine provided with same |
| JP2013139325A (en) * | 2012-01-05 | 2013-07-18 | Toshiba Corp | Hoisting machine, and rotating electrical machine with the same |
| FR3011143A1 (en) * | 2013-09-25 | 2015-03-27 | Alstom Transport Sa | TREE OF AN ELECTRIC MACHINE ROTOR WITH AT LEAST ONE AIR FLOW CREATING A FLOW INSIDE THE TREE, ROTOR COMPRISING SUCH A SHAFT AND ELECTRIC MACHINE COMPRISING SUCH A ROTOR |
| EP2854259A1 (en) * | 2013-09-25 | 2015-04-01 | ALSTOM Transport Technologies | Rotor shaft of an electric machine with at least one fin for creating an air flow inside the shaft, rotor comprising such a shaft and electric machine comprising such a rotor |
| JP2015193438A (en) * | 2014-03-31 | 2015-11-05 | 三菱電機株式会社 | Hoist for elevator |
| JP2021125986A (en) * | 2020-02-06 | 2021-08-30 | 西芝電機株式会社 | How to remove rotary electric machine and laminated disk |
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