JP2007020333A - Liquid-cooled rotary electric machine - Google Patents

Liquid-cooled rotary electric machine Download PDF

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JP2007020333A
JP2007020333A JP2005200347A JP2005200347A JP2007020333A JP 2007020333 A JP2007020333 A JP 2007020333A JP 2005200347 A JP2005200347 A JP 2005200347A JP 2005200347 A JP2005200347 A JP 2005200347A JP 2007020333 A JP2007020333 A JP 2007020333A
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housing
liquid
cooling
cooled
partition plate
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Tsutomu Miyoshi
努 三好
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Hitachi Industrial Equipment Systems Co Ltd
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Hitachi Industrial Equipment Systems Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid-cooled rotary electric machine, wherein a channel is formed without impairing cooling efficiency and machining and an air-cooled-type housing is used in common. <P>SOLUTION: The liquid-cooled rotary electric machine is constructed as follows the housing 2, having on its outer circumferential surface band-shaped projections 21 that are parallel with the axial direction and have a width equivalent to a channel 61, is obtained by extrusion; both ends of the housing are closed with end brackets 3A, 3B provided with turnup channels 62 that connect adjacent channels 61 and a coolant supply chamber 33; and the housing is covered with an outer casing 1, having a coolant inlet 35 and a coolant outlet (not shown). <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は液冷型の回転電機にかかわり、特にハウジングに形成された流路に冷却液を流して固定子を冷却する回転電機の冷却構造に関する。   The present invention relates to a liquid-cooled rotary electric machine, and more particularly to a cooling structure for a rotary electric machine that cools a stator by flowing a cooling liquid through a flow path formed in a housing.

近年、回転子に高性能な希土類磁石を使用した同期電動機が登場してからは、誘導電動機に比べて小型で高出力の電動機が製作できるようになった。一方で、小型化によって冷却面積が減少し、空冷による冷却では固定子からの発熱を効率的に吸収することが難しくなり、空冷よりも冷却効率の高い、水や油による液冷却の必要性が高まっている。液冷却の場合はハウジング内に冷却通路を設ける必要があるが、工作機の主軸で使われている液冷のビルトインモータでは、ハウジングの外周に螺旋状の冷却溝を切削加工して冷却通路を形成する方法が知られている（例えば、特許文献１参照）。   In recent years, since the appearance of synchronous motors using high-performance rare earth magnets for rotors, it has become possible to manufacture smaller and higher-powered motors than induction motors. On the other hand, the cooling area is reduced by downsizing, and cooling by air cooling makes it difficult to efficiently absorb the heat generated from the stator, and there is a need for liquid cooling with water or oil that has higher cooling efficiency than air cooling. It is growing. In the case of liquid cooling, it is necessary to provide a cooling passage in the housing. However, in the liquid cooling built-in motor used on the spindle of the machine tool, a cooling passage is formed by cutting a spiral cooling groove on the outer periphery of the housing. A forming method is known (see, for example, Patent Document 1).

また、筒状の２重の壁を有し両者を軸方向に平行なバッフルで接合した外側包囲ケースを用いた電気モータは、既に提案されている（例えば、特許文献２参照）。
特開平９−１５４２５７号公報 特開昭６２−１２３５０号公報 In addition, an electric motor using an outer surrounding case that has a cylindrical double wall and is joined by a baffle that is parallel to the axial direction has already been proposed (see, for example, Patent Document 2).
JP-A-9-154257 Japanese Patent Laid-Open No. Sho 62-12350

上記特許文献１の技術は、冷却通路を螺旋状に切削加工して形成しているため、回転電機の直径、長さが大きくなると溝を加工する工数も多くなってしまう問題があった。   The technique of the above-mentioned Patent Document 1 has a problem that the number of man-hours for machining a groove increases as the diameter and length of the rotating electrical machine increase because the cooling passage is formed by cutting in a spiral shape.

また、特許文献２の電機モータでは、２重の壁が軸方向の中心部で厚くなるように構成されていることから鋳造によって作成されると理解できるが、このような形状の製品を鋳造するには複雑な構造の金型が必要となる。   In addition, in the electric motor of Patent Document 2, it can be understood that the double wall is formed by casting because the double wall is configured to be thick at the central portion in the axial direction, but a product having such a shape is cast. Requires a complex mold.

加工の工数を低減するには、冷却通路を含めて鋳造法により一体で成形する方法が考えられるが、型形状が複雑で高価なものになることと、固定子に合わせてハウジングの全長を変更しようとすると、そのたびに鋳物の型が必要になってしまう問題があった。   In order to reduce the processing man-hours, it is conceivable to integrally form by casting method including the cooling passage, but the mold shape becomes complicated and expensive, and the total length of the housing is changed according to the stator When trying to do so, there was a problem that a casting mold was required each time.

さらに、液冷の場合はハウジングの円周方向に螺旋状に流路を形成しており、空冷の場合はハウジングの外周に回転軸と平行に放熱フィンを設ける流路を形成しているため、冷媒の流れる方向が異なりハウジングを統一することができなかった。   Furthermore, in the case of liquid cooling, a flow path is formed in a spiral shape in the circumferential direction of the housing, and in the case of air cooling, a flow path is provided on the outer periphery of the housing in which heat dissipating fins are provided in parallel with the rotation axis. The direction of refrigerant flow was different and the housing could not be unified.

本発明は、ハウジングを加工することなく流路を形成し、冷却効率を損なわずに冷却を可能にした液冷型の回転電機を提供することを目的とする。   An object of the present invention is to provide a liquid-cooled rotating electrical machine in which a flow path is formed without processing a housing and cooling is possible without impairing cooling efficiency.

本発明は、ハウジングを加工することなく流路を形成し、液冷型と空冷形のハウジングを共通化した、回転電機を提供することを目的とする。   An object of the present invention is to provide a rotating electrical machine in which a flow path is formed without processing a housing, and a liquid cooling type and an air cooling type housing are used in common.

上記課題を解決するために、本発明は、ハウジングを押出し成形によって形成し、ハウジング外周に軸方向と平行の流路幅を有する帯状の突起部を設ける。また、ハウジングの両端に設けるエンドブラケットに、冷却液供給室と冷却液排出室を配置するとともに冷却液を折り返す折返し流路を形成し、折返し流路とハウジング外周に設けた流路をつないで、全体として固定子外周を冷却する冷却通路を形成し、ハウジングの外側に接して外筒を被せることにより冷却液供給室から冷却液排出室まで連続した冷却液流路を構成する。   In order to solve the above-mentioned problems, the present invention forms a housing by extrusion molding, and provides a belt-like projection having a flow path width parallel to the axial direction on the outer periphery of the housing. Further, the end brackets provided at both ends of the housing are arranged with a coolant supply chamber and a coolant discharge chamber, and a folded flow path for folding the coolant is formed, and the folded flow path and the flow path provided on the outer periphery of the housing are connected, A cooling passage for cooling the outer periphery of the stator is formed as a whole, and a continuous coolant flow path is formed from the coolant supply chamber to the coolant discharge chamber by covering the outer cylinder in contact with the outside of the housing.

本発明は、内部に固定子および回転子を収納するとともに外側表面に軸方向に開放された帯状の仕切り板を有するハウジングを備えた液冷型の回転電機において、前記ハウジングの開放端を折返し流路を備えたエンドブラケットで塞ぐとともに、ハウジングの表面を外筒で覆い冷却液が流れる冷却通路を構成して液冷型の回転電機を構成する。   The present invention provides a liquid-cooled type rotating electrical machine including a housing that houses a stator and a rotor inside and has a strip-shaped partition plate that is axially opened on an outer surface, and the open end of the housing is folded back. A liquid-cooled rotary electric machine is configured by closing the end bracket provided with a path and covering the surface of the housing with an outer cylinder to form a cooling passage through which a coolant flows.

本発明は、上記液冷型の回転電機において、前記ハウジングを押出し成形により形成することによって、ハウジングを構成する円筒部分と帯状の仕切り板を、軸方向に等しい形状を有するものとした。   In the liquid-cooled rotary electric machine according to the present invention, the housing is formed by extrusion molding so that the cylindrical portion and the strip-shaped partition plate constituting the housing have the same shape in the axial direction.

また、本発明は、内部に固定子および回転子を収納するとともに外側表面に軸方向に開放された帯状の仕切り板を有するハウジングを備えた回転電機において、前記ハウジングを押出し成形によって形成し、前記ハウジングの開放端をエンドブラケットで塞いで回転電機を構成する。   Further, the present invention provides a rotating electrical machine including a housing that houses a stator and a rotor therein and has a strip-shaped partition plate that is opened in an axial direction on an outer surface, the housing is formed by extrusion molding, A rotating electric machine is configured by closing the open end of the housing with an end bracket.

ハウジングは押出し成形法により、エンドブラケットは鋳造法により容易に流路を形成することができるので、流路を切削加工する必要がない。また、押出し成形法で外周の帯状の突起と共に形成すれば、任意の長さで切り出すことが可能となるので、必要とする機種の固定子の長さに最適なハウジングを製作することができる。   Since the flow path can be easily formed by the extrusion method for the housing and the casting method for the end bracket, it is not necessary to cut the flow path. Moreover, if it is formed together with the belt-shaped protrusions on the outer periphery by the extrusion molding method, it is possible to cut out with an arbitrary length, so that a housing optimal for the length of the required type of stator can be manufactured.

ハウジング外周の帯状の突起は軸方向に平行に設けているので、回転電機の後方に取付けられた冷却ファンによって、軸方向と平行にハウジング外周に空気を流す、空冷全閉形の回転電機のハウジングにも使用でき、ハウジングを共通化することができる。   Since the belt-shaped protrusions on the outer periphery of the housing are provided in parallel with the axial direction, the cooling fan attached to the rear of the rotating electrical machine allows air to flow on the outer periphery of the housing in parallel with the axial direction. Can be used, and the housing can be shared.

以下、本発明にかかる回転電機について、図示の実施の形態により詳細に説明する。図１は、本発明を液冷型の誘導電動機に適用した場合の一実施形態の断面図である。図１に示す液冷型の電動機は、両端をエンドブラケット３Ａ，３Ｂで塞がれたハウジング２の中に固定子４を備え、この固定子４の中に回転子５が回転可能に保持されている。   Hereinafter, a rotating electrical machine according to the present invention will be described in detail with reference to embodiments shown in the drawings. FIG. 1 is a cross-sectional view of an embodiment when the present invention is applied to a liquid-cooled induction motor. The liquid cooling type motor shown in FIG. 1 includes a stator 4 in a housing 2 whose ends are closed by end brackets 3A and 3B, and a rotor 5 is rotatably held in the stator 4. ing.

ハウジング２は、略円筒形に作られ、外側に軸方向に平行に形成した仕切り板２１を設けて冷却液を通すための流路６１が設けてある。ハウジング２の一方の端部にはエンドブラケット３Ａが、他方の端部にはエンドブラケット３Ｂが液密に設けてあり、これらに回転軸５１が、それぞれの転がり軸受５２Ａ、５２Ｂにより回転可能に保持されている。   The housing 2 is formed in a substantially cylindrical shape, and a partition plate 21 formed in parallel to the axial direction is provided on the outer side, and a flow path 61 for allowing a coolant to pass therethrough is provided. An end bracket 3A is provided at one end of the housing 2 and an end bracket 3B is provided at the other end in a liquid-tight manner. A rotating shaft 51 is rotatably held by the respective rolling bearings 52A and 52B. Has been.

ハウジング２とエンドブラケット３Ａ，３Ｂの外周に、全体を覆う円筒形の外筒１が被せてあり、Ｏリング７１Ａ，７１Ｂでシールされている。一方、ハウジング２とエンドブラケット３Ａ，３Ｂの接触面にＯリング７２Ａ，７２Ｂが設けてあり、ハウジングから冷却液が漏れないようにしてある。   The outer periphery of the housing 2 and the end brackets 3A and 3B is covered with a cylindrical outer cylinder 1 that covers the whole, and is sealed with O-rings 71A and 71B. On the other hand, O-rings 72A and 72B are provided on the contact surfaces of the housing 2 and the end brackets 3A and 3B so that the coolant does not leak from the housing.

円筒形状のハウジング２の外側表面には、軸方向に平行に延びる帯状の仕切り板２１が放射状に多数枚設けられている。仕切り板２１の高さは、外筒１の内側の表面に接して、流路６１を形成する高さとされる。   On the outer surface of the cylindrical housing 2, a plurality of strip-like partition plates 21 extending in parallel in the axial direction are provided radially. The height of the partition plate 21 is set to a height at which the flow path 61 is formed in contact with the inner surface of the outer cylinder 1.

図２は、ハウジング２とエンドブラケット３Ａ，３Ｂを展開して外側から見た図であり、図３は図２のＡ−Ａ線での断面図である。図２に、冷却液の流れる様子を矢印で示している。エンドブラケット３Ａ，３Ｂには、ハウジング２の端部内表面を受ける段部と外筒１の端部内表面を受ける段部が設けられる。さらに、エンドブラケット３Ａ，３Ｂの円周表面のうちハウジング側には、図示のような折り返し仕切り板３１が設けられ、折返し流路６２が形成される。   FIG. 2 is a view of the housing 2 and the end brackets 3A and 3B developed from the outside, and FIG. 3 is a cross-sectional view taken along the line AA of FIG. In FIG. 2, the state in which the coolant flows is indicated by arrows. The end brackets 3 </ b> A and 3 </ b> B are provided with a step portion that receives the inner surface of the end portion of the housing 2 and a step portion that receives the inner surface of the end portion of the outer cylinder 1. Further, on the housing side of the circumferential surfaces of the end brackets 3A and 3B, a folded partition plate 31 as shown is provided, and a folded flow path 62 is formed.

折返し流路６２は、ハウジング２の表面に隣接する流路６１をつなぐ流路であり、さらに、例えば、エンドブラケット３Ａには折返し流路６２を閉じる仕切り板３２が設けられ冷却液供給室３３および冷却液排出室３４を形成する。この冷却液供給室３３には、外筒１に設けた冷却液入口３５から冷却液が供給され、冷却液排出室３４の上の外筒１に設けた冷却液出口３８から冷却液が排出される。   The folded flow path 62 is a flow path that connects the flow path 61 adjacent to the surface of the housing 2. Further, for example, the end bracket 3 </ b> A is provided with a partition plate 32 that closes the folded flow path 62, and the coolant supply chamber 33 and A coolant discharge chamber 34 is formed. The cooling liquid supply chamber 33 is supplied with a cooling liquid from a cooling liquid inlet 35 provided in the outer cylinder 1, and is discharged from a cooling liquid outlet 38 provided in the outer cylinder 1 above the cooling liquid discharge chamber 34. The

冷却液は、冷却液入口３５から入って流路６１、６２に沿ってハウジング２の外周を一周し、冷却液出口３６から排出される。ハウジング２には仕切り板２１が図３に示すように外側に向けて放射状に設けられており、エンドブラケット３Ａ、３Ｂの仕切り板３１は軸方向に重ならないよう交互にずらして配置されて、冷却液流路を形成するための折返し流路６２となり、ハウジング２、エンドブラケット３Ａ，３Ｂ，外筒１の部品を組み合わせることで全体の冷却液流路が完成する。   The coolant enters from the coolant inlet 35, goes around the outer periphery of the housing 2 along the flow paths 61 and 62, and is discharged from the coolant outlet 36. As shown in FIG. 3, the housing 2 is provided with a partition plate 21 radially outward, and the partition plates 31 of the end brackets 3A and 3B are alternately shifted so as not to overlap in the axial direction, and are cooled. The folded flow path 62 for forming the liquid flow path is formed, and the entire coolant flow path is completed by combining the components of the housing 2, the end brackets 3A and 3B, and the outer cylinder 1.

ハウジング２は、例えば、アルミニウムを用いて押出し成形法によって形成することができ、このとき帯状の仕切り板２１を一体に形成する。押出し成形した素材を所望の長さに切断することによって、異なる大きさのハウジングを得ることができる。このハウジング２は、空冷型回転電機のハウジングと共通化することにより、空冷型の回転電機にも用いることができる。この場合も帯状の仕切り板を一体に形成する。一方、エンドブラケット３Ａ，３Ｂは鋳造法によって作成すれば、仕切り板３１，３２、折返し流路６２を一体に形成することができる。   The housing 2 can be formed by, for example, an extrusion method using aluminum, and at this time, the strip-shaped partition plate 21 is integrally formed. By cutting the extruded material to a desired length, different sized housings can be obtained. The housing 2 can be used for an air-cooled rotating electrical machine by sharing it with the housing of the air-cooled rotating electrical machine. Also in this case, a strip-shaped partition plate is integrally formed. On the other hand, if the end brackets 3A and 3B are made by a casting method, the partition plates 31 and 32 and the folded channel 62 can be formed integrally.

以上のように、本発明によれば、ハウジング２は、アルミニウムを用いて押出し成形法により、エンドブラケット３Ａ，３Ｂは、鋳造法により容易に流路を形成することができるので、流路を切削加工する必要がなくなる。また、押出し成形法でハウジング外周の帯状の仕切り板２１をハウジング成形時に一体に形成すれば、仕切り板２１を有するハウジングを任意の長さで切り出すことが可能となるので、必要とする機種の固定子の長さに最適なハウジングを製作することができる。   As described above, according to the present invention, the housing 2 can be easily formed by extrusion using aluminum, and the end brackets 3A and 3B can be easily formed by casting. No need to process. Further, if the strip-like partition plate 21 on the outer periphery of the housing is integrally formed at the time of molding the housing by the extrusion molding method, the housing having the partition plate 21 can be cut out with an arbitrary length, so that the required model can be fixed. A housing optimal for the length of the child can be manufactured.

本発明に用いるハウジング２は、ハウジング外周の帯状の仕切り板２１を軸方向に平行に設けているので、回転電機の後方に取付けられた冷却ファンによって、軸方向と平行にハウジング外周に空気を流す、空冷全閉型の回転電機のハウジングにも使用することができる。   Since the housing 2 used in the present invention is provided with the belt-like partition plate 21 on the outer periphery of the housing in parallel with the axial direction, the cooling fan attached to the rear of the rotating electrical machine causes air to flow on the outer periphery of the housing in parallel with the axial direction. It can also be used for a housing of an air-cooled fully-closed rotary electric machine.

図４を用いて、本発明の他の実施例である空冷全閉型の回転電機の構成を説明する。図４においては、回転軸５１の反出力側に冷却ファン８を設けた点に特徴を有している。図４では、図１と同様な構成要素には、同一符号を付しておりその説明を省略する。この実施例では、エンドブラケット３´Ａ，３´Ｂには、冷却液供給室３３、冷却液排出室３４、折返し流路６２が省略され、外筒１´を支持固定する支持部（図示を省略）が設けられている。さらに、外筒１´はエンドブラケット３´Ａ側に外筒底部１１を有し、外筒底部１１の中心部に外筒底部開口１２が設けられている。   The configuration of an air-cooled fully-closed rotating electrical machine that is another embodiment of the present invention will be described with reference to FIG. FIG. 4 is characterized in that the cooling fan 8 is provided on the opposite side of the rotating shaft 51. In FIG. 4, the same components as those in FIG. In this embodiment, the end brackets 3'A and 3'B are not provided with the coolant supply chamber 33, the coolant discharge chamber 34, and the return channel 62, and support portions (not shown) for supporting and fixing the outer cylinder 1 '. (Omitted) is provided. Further, the outer cylinder 1 ′ has an outer cylinder bottom 11 on the end bracket 3 ′ A side, and an outer cylinder bottom opening 12 is provided at the center of the outer cylinder bottom 11.

回転軸５１に取り付けた冷却ファン８が回転すると、ファンが配置された室が減圧となり、外筒１´の図示右側から冷却空気が吸い込まれ、外筒１´とハウジング２との間に形成された流路６１を通過して外筒底部開口１２から排出される。流路６１を流れる冷却空気は、ハウジング２の表面および仕切り板２１から熱を奪って、外部に排出する。   When the cooling fan 8 attached to the rotating shaft 51 rotates, the chamber in which the fan is disposed is depressurized, and cooling air is sucked in from the right side of the outer cylinder 1 ′ and is formed between the outer cylinder 1 ′ and the housing 2. It passes through the flow path 61 and is discharged from the outer cylinder bottom opening 12. The cooling air flowing through the flow path 61 takes heat from the surface of the housing 2 and the partition plate 21 and discharges it to the outside.

このように、本発明に用いるハウジング２は、液冷型回転電機および空冷型回転電機のいずれにも用いることができる。   Thus, the housing 2 used in the present invention can be used for both liquid-cooled rotary electric machines and air-cooled rotary electric machines.

本発明にかかる液冷型誘導電動機の構造を説明する断面図。Sectional drawing explaining the structure of the liquid cooling induction motor concerning this invention. 本発明における液冷型誘導電動機の冷却液の流れる様子を説明する展開図。The expanded view explaining a mode that the cooling fluid of the liquid cooling type induction motor in this invention flows. 図２の液冷型誘導電動機の冷却通路の部分断面図。FIG. 3 is a partial sectional view of a cooling passage of the liquid-cooled induction motor of FIG. 2. 本発明にかかる空冷型誘導電動機の構造を説明する断面図。Sectional drawing explaining the structure of the air-cooling type induction motor concerning this invention.

符号の説明Explanation of symbols

１，１´：外筒
１１：外筒底部
１２：外筒底部開口
２：ハウジング
２１：ハウジングの仕切り板
３：エンドブラケット
３１：エンドブラケットの仕切り板
３２：エンドブラケットの仕切り板
３３：冷却液供給室
３４：冷却液排出室
３５：冷却液入口
３６：冷却液出口
４：固定子
５：回転子
５１：回転軸
５２：軸受
６１：流路
６２：折返し流路
７１：外筒のＯリング
７２：ハウジングのＯリング
８：冷却ファン 1, 1 ': outer cylinder 11: outer cylinder bottom 12: outer cylinder bottom opening 2: housing 21: housing partition plate 3: end bracket 31: end bracket partition plate 32: end bracket partition plate 33: coolant supply Chamber 34: Coolant discharge chamber 35: Coolant inlet 36: Coolant outlet 4: Stator 5: Rotor 51: Rotating shaft 52: Bearing 61: Channel 62: Folded channel 71: O-ring 72 of outer cylinder 72: Housing O-ring 8: Cooling fan

Claims (4)

内部に固定子および回転子を収納するとともに外側表面に軸方向に開放された帯状の仕切り板を有するハウジングを備えた液冷型の回転電機において、
前記ハウジングを押出し成形によって形成し、
前記ハウジングの開放端をエンドブラケットで塞いだ
ことを特徴とする液冷型の回転電機。 In a liquid-cooled type rotating electrical machine including a housing that houses a stator and a rotor inside and has a strip-shaped partition plate that is axially open on the outer surface,
Forming the housing by extrusion,
A liquid-cooled rotating electric machine, wherein an open end of the housing is closed with an end bracket. 内部に固定子および回転子を収納するとともに外側表面に軸方向に開放された帯状の仕切り板を有するハウジングを備えた液冷型の回転電機において、
前記ハウジングを押出し成形によって形成し、
前記ハウジングの開放端を折返し流路を備えたエンドブラケットで塞ぐとともに、ハウジングの表面を外筒で覆い冷却液が流れる冷却通路を構成する
ことを特徴とする液冷型の回転電機。 In a liquid-cooled type rotating electrical machine including a housing that houses a stator and a rotor inside and has a strip-shaped partition plate that is axially open on the outer surface,
Forming the housing by extrusion,
A liquid-cooled rotating electrical machine characterized in that the open end of the housing is closed with an end bracket having a folded flow path, and the surface of the housing is covered with an outer cylinder to form a cooling passage through which a coolant flows. 請求項２に記載の液冷型の回転電機において、
前記ハウジングを構成する円筒部分と帯状の仕切り板が、軸方向に等しい形状を有する
ことを特徴とする液冷型の回転電機。 In the liquid cooling type rotating electrical machine according to claim 2,
A liquid-cooled rotating electric machine, wherein a cylindrical portion and a strip-shaped partition plate constituting the housing have a shape equal to an axial direction. 内部に固定子および回転子を収納するとともに外側表面に軸方向に開放された帯状の仕切り板を有するハウジングを備えた空冷型の回転電機において、
前記ハウジングを押出し成形によって形成し、
前記ハウジングの開放端をエンドブラケットで塞ぐとともに、回転軸の反出力軸側に冷却ファンを取り付け、ハウジングの表面を外筒で覆い冷却気体が流れる冷却通路を構成する
ことを特徴とする空冷型の回転電機。 In an air-cooled rotating electrical machine including a housing that houses a stator and a rotor inside and has a strip-shaped partition plate that is axially open on the outer surface,
Forming the housing by extrusion,
The open end of the housing is closed with an end bracket, a cooling fan is attached to the side opposite to the output shaft of the rotary shaft, the surface of the housing is covered with an outer cylinder, and a cooling passage through which cooling gas flows is configured. Rotating electric machine.
JP2005200347A 2005-07-08 2005-07-08 Liquid-cooled rotary electric machine Pending JP2007020333A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005200347A JP2007020333A (en) 2005-07-08 2005-07-08 Liquid-cooled rotary electric machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005200347A JP2007020333A (en) 2005-07-08 2005-07-08 Liquid-cooled rotary electric machine

Publications (1)

Publication Number Publication Date
JP2007020333A true JP2007020333A (en) 2007-01-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010268667A (en) * 2009-05-18 2010-11-25 Fanuc Ltd Motor cooling jacket
JP2011036122A (en) * 2009-07-29 2011-02-17 Joy Ride Technology Co Ltd Motor assembly article equipped with heat conduction coupling member
JP2012100524A (en) * 2010-11-04 2012-05-24 Siemens Ag Welded manifold for stator housing segment
CN103748769A (en) * 2011-08-18 2014-04-23 雷米科技有限责任公司 Electric machine cooling
CN104184241A (en) * 2014-09-03 2014-12-03 东方电气（乐山）新能源设备有限公司 Light type electric automobile motor base
US20150207388A1 (en) * 2014-01-20 2015-07-23 Hitachi, Ltd. Rotating Electric Machine
JP7447943B2 (en) 2022-07-27 2024-03-12 株式会社明電舎 Seal structure of coolant flow path in rotating machines

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010268667A (en) * 2009-05-18 2010-11-25 Fanuc Ltd Motor cooling jacket
JP2011036122A (en) * 2009-07-29 2011-02-17 Joy Ride Technology Co Ltd Motor assembly article equipped with heat conduction coupling member
JP2012100524A (en) * 2010-11-04 2012-05-24 Siemens Ag Welded manifold for stator housing segment
CN103748769A (en) * 2011-08-18 2014-04-23 雷米科技有限责任公司 Electric machine cooling
US20150207388A1 (en) * 2014-01-20 2015-07-23 Hitachi, Ltd. Rotating Electric Machine
US9893593B2 (en) * 2014-01-20 2018-02-13 Hitachi, Ltd. Rotating electric machine having a cooling frame with a plurality of coolants
CN104184241A (en) * 2014-09-03 2014-12-03 东方电气（乐山）新能源设备有限公司 Light type electric automobile motor base
JP7447943B2 (en) 2022-07-27 2024-03-12 株式会社明電舎 Seal structure of coolant flow path in rotating machines

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