JPH09163680A - Outer side rotary type refrigerant cooling dynamo-electric machine - Google Patents
Outer side rotary type refrigerant cooling dynamo-electric machineInfo
- Publication number
- JPH09163680A JPH09163680A JP31986595A JP31986595A JPH09163680A JP H09163680 A JPH09163680 A JP H09163680A JP 31986595 A JP31986595 A JP 31986595A JP 31986595 A JP31986595 A JP 31986595A JP H09163680 A JPH09163680 A JP H09163680A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- fixed shaft
- electric machine
- stator
- rotor type
- 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
- Motor Or Generator Frames (AREA)
- Motor Or Generator Cooling System (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】この発明は、冷媒により固定
子の冷却を強化した外側回転子形冷媒冷却回転電機に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outer rotor type refrigerant cooling rotary electric machine in which cooling of a stator is enhanced by a refrigerant.
【0002】[0002]
【従来の技術】実開平1─79363号公報などにもあ
るように、従来の外側回転子形回転電機は、軸受で支承
される固定軸に固定子を固着し、固定子の外周に空隙を
介して回転子を配置し、回転子に取付けたブラケットに
軸受を取付ける。回転子にファンや巻掛け伝導装置やコ
ンベアベルトなどの負荷を連結する。固定軸の両端を固
定側に支持させたり、片持支持したりする。固定軸を支
承する軸受も片側だけでもよい。ブラケットは全閉形や
開放形がある。2. Description of the Related Art As disclosed in Japanese Utility Model Laid-Open No. 1-79363, a conventional outer rotor type electric rotating machine has a stator fixed to a fixed shaft supported by a bearing, and a gap is formed around the outer periphery of the stator. Place the rotor through and mount the bearing on the bracket attached to the rotor. Connect a load such as a fan, a winding transmission device, or a conveyor belt to the rotor. Both ends of the fixed shaft are supported on the fixed side or cantilevered. The bearing that supports the fixed shaft may be only one side. Brackets are either fully closed or open.
【0003】[0003]
【発明が解決しようとする課題】前記の従来例では、回
転子は外側にあって外気によく触れて冷却され、固定子
も固定軸の端部から、また回転子から空隙を介して冷却
される。このため、電動機の全体は、外扇などを使用し
なくてもよく冷却される。しかし、電動機を大容量にし
ようとすると、固定子、特に固定子巻線の冷却や軸受の
内輪の冷却が充分でなく、電動機を大容量にすることに
限界が生じる。In the above-mentioned conventional example, the rotor is on the outside and is well contacted with the outside air to be cooled, and the stator is also cooled from the end of the fixed shaft and from the rotor through the air gap. It Therefore, the entire electric motor can be cooled without using an external fan or the like. However, if an attempt is made to increase the capacity of the electric motor, the stator, particularly the stator windings and the inner ring of the bearing are not sufficiently cooled, and there is a limit in increasing the capacity of the electric motor.
【0004】この発明の課題の要点は、液体又はフロン
などの冷媒により固定子、特に固定子巻線の冷却や軸受
の内輪の冷却を強化して、回転電機を大容量化すること
ができる外側回転子形冷媒冷却回転電機を提供すること
にある。The point of the object of the present invention is to increase the capacity of the rotating electric machine by enhancing the cooling of the stator, especially the stator windings and the inner ring of the bearing with a refrigerant such as liquid or CFC. An object is to provide a rotor-type refrigerant cooling rotating electric machine.
【0005】[0005]
【課題を解決するための手段】この明細書において、冷
媒は水などの液体又はフロン、空気などの気体の冷媒を
意味する。発明1の外側回転子形冷媒冷却回転電機は、
軸受で支承される固定軸に固定子を固着し、固定子の外
周に空隙を介して回転子を配置し、回転子に取付けたブ
ラケットに軸受を取付ける外側回転子形回転電機におい
て、固定子が固着される付近の固定軸の中心部に冷媒通
路を形成し、固定軸の一端と他端とに冷媒供給口と冷媒
排出口とを設け、冷媒供給口と冷媒排出口とを冷媒通路
に連通し、固定子のリードを固定軸の外周の溝から引き
出すものである。In this specification, the refrigerant means a liquid such as water or a refrigerant such as chlorofluorocarbon or air. The outer rotor type refrigerant cooling rotary electric machine according to Invention 1 is
In an outer rotor type rotary electric machine in which a stator is fixed to a fixed shaft supported by bearings, the rotor is placed around the outer periphery of the stator with a gap, and the bearing is mounted on a bracket attached to the rotor, the stator is A refrigerant passage is formed in the central portion of the fixed shaft near where it is fixed, a refrigerant supply port and a refrigerant discharge port are provided at one end and the other end of the fixed shaft, and the refrigerant supply port and the refrigerant discharge port are communicated with the refrigerant passage. Then, the lead of the stator is pulled out from the groove on the outer periphery of the fixed shaft.
【0006】発明1によれば、冷媒は冷媒供給口と冷媒
排出口とにより冷媒通路に導かれ、固定軸を介して固定
子をよく冷却し、軸受の内輪も冷媒供給口と冷媒排出口
とのある固定軸を介してよく冷却する。溝は、冷媒供給
口又は冷媒排出口と干渉しないし、軸受の内輪とも干渉
しないで軸受を潜って外部へリードを導く。発明2は発
明1において、冷媒通路の内径を、冷媒供給口又は冷媒
排出口より大径とするものである。発明2によれば、大
径な冷媒通路は外周面積を拡大して固定子をさらによく
冷却する。According to the first aspect of the invention, the refrigerant is guided to the refrigerant passage by the refrigerant supply port and the refrigerant discharge port, cools the stator well through the fixed shaft, and the inner ring of the bearing also has the refrigerant supply port and the refrigerant discharge port. Cools well through a fixed shaft with. The groove guides the lead to the outside through the bearing without interfering with the coolant supply port or the coolant discharge port and without interfering with the inner ring of the bearing. A second aspect of the present invention is the same as the first aspect, wherein the inner diameter of the refrigerant passage is larger than that of the refrigerant supply port or the refrigerant discharge port. According to the second aspect of the present invention, the large-diameter refrigerant passage enlarges the outer peripheral area to further cool the stator.
【0007】発明3は発明2において、固定軸の冷媒通
路を軸心と直角な面で個別に分割されたものを前記面で
固着するものである。発明3によれば、固定軸の両端か
ら冷媒通路を旋盤による困難な中ぐりをすることなく、
面で分割された個別の固定軸は開かれた冷媒通路から旋
盤などにより容易に加工でき、面はアーク溶接や摩擦溶
接で固着される。A third aspect of the present invention is the same as the second aspect of the present invention, in which the refrigerant passage of the fixed shaft is individually divided by a plane perpendicular to the axial center and is fixed on the plane. According to the third aspect of the present invention, the refrigerant passage is prevented from being bored by the lathe from both ends of the fixed shaft, which is difficult.
The individual fixed shafts divided by the surface can be easily processed from the opened refrigerant passage by a lathe or the like, and the surface is fixed by arc welding or friction welding.
【0008】発明4は発明1、2又は3において、冷媒
通路の内面に冷却フィン又は凹凸を設けるものである。
発明4によれば、発明1、2及び3と同様に、冷媒は冷
媒供給口と冷媒排出口とにより冷媒通路に導かれ、固定
軸を介して固定子をよく冷却し、軸受の内輪も冷媒供給
口と冷媒排出口とのある固定軸を介してよく冷却する。
溝は、冷媒供給口又は冷媒排出口と干渉しないし、軸受
の内輪とも干渉しないで軸受を潜って外部へリードを導
く。大径な冷媒通路は外周面積を拡大して固定子をさら
によく冷却する。固定軸の両端から冷媒通路を旋盤によ
る困難な中ぐりをすることなく、面で分割された個別の
固定軸は開かれた冷媒通路から旋盤などにより容易に加
工でき、面はアーク溶接や摩擦溶接で固着される。そし
て、発明4の特徴として、冷却フィン又は凹凸は、冷媒
通路における固定軸の冷媒との熱交換を良好にして益々
よく固定子を冷却する。A fourth aspect of the present invention is the invention of the first, second or third aspect, wherein cooling fins or irregularities are provided on the inner surface of the refrigerant passage.
According to the fourth aspect of the invention, similarly to the first, second and third aspects, the refrigerant is guided to the refrigerant passage by the refrigerant supply port and the refrigerant discharge port, cools the stator well through the fixed shaft, and the inner ring of the bearing also cools the refrigerant. It cools well through a fixed shaft with a supply port and a coolant discharge port.
The groove guides the lead to the outside through the bearing without interfering with the coolant supply port or the coolant discharge port and without interfering with the inner ring of the bearing. The large-diameter refrigerant passage expands the outer peripheral area to cool the stator better. The individual fixed shafts divided by the surface can be easily machined from the opened refrigerant passage by a lathe, etc., without the difficult boring of the refrigerant passage from both ends of the fixed shaft by the lathe, and the surface is arc welded or friction welded. It is fixed in. Further, as a feature of the invention 4, the cooling fins or the unevenness improve the heat exchange with the refrigerant of the fixed shaft in the refrigerant passage, and cool the stator more and more.
【0009】発明5の外側回転子形冷媒冷却回転電機
は、軸受で支承される固定軸に固定子を固着し、固定子
の外周に空隙を介して回転子を配置し、回転子に取付け
たブラケットに軸受を取付ける外側回転子形回転電機に
おいて、固定子が固着される付近の固定軸の中心部に冷
媒通路を形成し、固定軸の一端に冷媒供給口と冷媒排出
口とを設け、冷媒供給口と冷媒排出口とを冷媒通路に連
通し、冷媒通路の他端に冷媒通路を閉じる仕切壁を設け
るものである。In the outer rotor type refrigerant cooling rotary electric machine according to the fifth aspect of the invention, the stator is fixed to the fixed shaft supported by the bearing, and the rotor is arranged on the outer periphery of the stator with a gap therebetween and attached to the rotor. In an outer rotor type rotating electric machine in which a bearing is mounted on a bracket, a refrigerant passage is formed in the center of a fixed shaft near the stator is fixed, and a refrigerant supply port and a refrigerant discharge port are provided at one end of the fixed shaft. The supply port and the coolant discharge port are communicated with the coolant passage, and a partition wall closing the coolant passage is provided at the other end of the coolant passage.
【0010】発明5によれば、冷媒は冷媒供給口と冷媒
排出口とにより冷媒通路に導かれ、固定軸を介して固定
子をよく冷却し、軸受の内輪も冷媒供給口と冷媒排出口
とのある固定軸を介してよく冷却する。冷媒供給口と冷
媒排出口とは共に固定軸の一端にあり、他端は仕切壁で
閉じられるので、リードは固定軸の他端の外周の溝や、
別途に設ける仕切壁の他端側の中空穴から軸受を潜って
外部に導くことは自由である。冷媒供給口と冷媒排出口
とのある固定軸の一端の外周の溝から軸受を潜って外部
へ導くことも自由である。According to the fifth aspect of the invention, the refrigerant is guided to the refrigerant passage by the refrigerant supply port and the refrigerant discharge port, and cools the stator well through the fixed shaft, and the inner ring of the bearing also has the refrigerant supply port and the refrigerant discharge port. Cools well through a fixed shaft with. Both the coolant supply port and the coolant discharge port are at one end of the fixed shaft, and the other end is closed by a partition wall, so the lead is a groove on the outer periphery of the other end of the fixed shaft,
It is free to guide the bearing to the outside through the hollow hole on the other end side of the partition wall provided separately. It is also free to guide the bearing to the outside from the groove on the outer periphery of one end of the fixed shaft having the coolant supply port and the coolant discharge port.
【0011】発明6は発明5において、冷媒通路の内径
を、冷媒供給口と冷媒排出口とを包絡して軸心と同心の
包絡円より大径とするものである。発明6によれば、大
径な冷媒通路は外周面積を拡大して固定子をさらによく
冷却する。発明7は発明6において、固定軸の冷媒通路
を軸心と直角な面で個別に分割されたものを前記面で固
着するものである。発明7によれば、発明5及び発明6
と同様に、冷媒は冷媒供給口と冷媒排出口とにより冷媒
通路に導かれ、固定軸を介して固定子をよく冷却し、軸
受の内輪も冷媒供給口と冷媒排出口とのある固定軸を介
してよく冷却する。冷媒供給口と冷媒排出口とは共に固
定軸の一端にあり、他端は仕切壁で閉じられるので、リ
ードは固定軸の他端の外周の溝や、別途に設ける仕切壁
の他端側の中空穴から軸受を潜って外部に導くことは自
由である。冷媒供給口と冷媒排出口とのある固定軸の一
端の外周の溝から軸受を潜って外部へ導くことも自由で
ある。大径な冷媒通路は外周面積を拡大して固定子をさ
らによく冷却する。発明7の特徴として、固定軸の一端
から冷媒通路を旋盤による困難な中ぐりをすることな
く、面で分割された個別の固定軸は開かれた冷媒通路か
ら旋盤などにより容易に加工でき、面はアーク溶接や摩
擦溶接で固着される。A sixth aspect of the present invention is the same as the fifth aspect, wherein the inner diameter of the refrigerant passage is larger than an enveloping circle that is concentric with the shaft center by enclosing the refrigerant supply port and the refrigerant discharge port. According to the sixth aspect of the present invention, the large-diameter refrigerant passage enlarges the outer peripheral area to cool the stator better. A seventh aspect of the present invention is the same as the sixth aspect of the present invention, in which the refrigerant passage of the fixed shaft is individually divided by a plane perpendicular to the axis, and is fixed on the plane. According to invention 7, invention 5 and invention 6
Similarly, the refrigerant is guided to the refrigerant passage by the refrigerant supply port and the refrigerant discharge port, cools the stator well through the fixed shaft, and the inner ring of the bearing also has the fixed shaft with the refrigerant supply port and the refrigerant discharge port. Cool well through. Since both the refrigerant supply port and the refrigerant discharge port are at one end of the fixed shaft and the other end is closed by a partition wall, the lead is provided on the outer peripheral groove at the other end of the fixed shaft or at the other end side of the partition wall provided separately. It is free to guide the bearing through the hollow hole to the outside. It is also free to guide the bearing to the outside from the groove on the outer periphery of one end of the fixed shaft having the coolant supply port and the coolant discharge port. The large-diameter refrigerant passage expands the outer peripheral area to cool the stator better. A feature of the invention 7 is that the individual fixed shafts divided by the surface can be easily machined from the opened refrigerant passage by a lathe or the like without the need for boring the refrigerant passage from one end of the fixed shaft by the lathe. Are fixed by arc welding or friction welding.
【0012】発明8は発明5、6又は7において、冷媒
通路の内面に冷却フィン又は凹凸を設けるものである。
発明8によれば、冷却フィン又は凹凸は、冷媒通路にお
ける固定軸の冷媒との熱交換を良好にして益々よく固定
子を冷却する。発明9は発明5、6、7又は8におい
て、冷媒供給口と冷媒排出口とは、固定軸の一端で並列
するものである。発明9によれば、発明5の冷媒供給口
と冷媒排出口とを共に固定軸の一端に設けることが1つ
の構造として具体化される。A eighth aspect of the present invention is the fifth, sixth or seventh aspect, wherein cooling fins or irregularities are provided on the inner surface of the refrigerant passage.
According to the eighth aspect of the present invention, the cooling fins or the irregularities improve the heat exchange with the refrigerant of the fixed shaft in the refrigerant passage, and cool the stator more and more. A ninth aspect of the present invention is the fifth, sixth, seventh or eighth aspect in which the coolant supply port and the coolant discharge port are arranged in parallel at one end of the fixed shaft. According to the ninth aspect, providing both the refrigerant supply port and the refrigerant discharge port of the fifth aspect at one end of the fixed shaft is embodied as one structure.
【0013】発明10は発明5、6、7又は8におい
て、冷媒供給口と冷媒排出口とのいずれか一方は固定軸
に直接に形成され、他方は管からなって一方の内部に差
し込まれるものである。発明10によれば、発明5の冷
媒供給口と冷媒排出口とを共に固定軸の一端に設けるこ
とが別な構造として具体化される。発明11による外側
回転子形冷媒冷却回転電機は、軸受で支承される固定軸
に固定子を固着し、固定子の外周に空隙を介して回転子
を配置し、回転子に取付けたブラケットに軸受を取付け
る外側回転子形回転電機において、固定子が固着される
付近の固定軸の中心部に冷媒通路を形成し、固定軸の一
端に冷媒供給口と冷媒排出口との一方を形成して冷媒通
路に連通し、冷媒通路の他端に冷媒通路を閉じる仕切壁
を設け、仕切壁の他端側の固定軸に他端に開放する引出
穴を形成し、仕切壁に液密又は気密に貫通して固定軸の
他端側に延設される管を冷媒供給口と冷媒排出口との他
方とするものである。A tenth aspect of the present invention is the same as the fifth, sixth, seventh or eighth aspect, in which one of the coolant supply port and the coolant discharge port is directly formed on the fixed shaft, and the other is formed of a pipe and inserted into the inside of the one. Is. According to the tenth aspect, providing both the refrigerant supply port and the refrigerant discharge port of the fifth aspect at one end of the fixed shaft is embodied as another structure. An outer rotor type refrigerant cooling rotary electric machine according to an eleventh aspect of the present invention has a stator fixed to a fixed shaft supported by a bearing, the rotor being arranged on the outer periphery of the stator through a gap, and the bearing mounted on a bracket attached to the rotor. In the outer rotor type rotating electric machine to be mounted, the refrigerant passage is formed in the center of the fixed shaft near the stator to be fixed, and the refrigerant is formed by forming one of the refrigerant supply port and the refrigerant discharge port at one end of the fixed shaft. A partition wall that communicates with the passage and closes the refrigerant passage at the other end of the refrigerant passage is provided, and a fixed shaft at the other end of the partition wall is formed with a drawing hole that opens to the other end, and penetrates the partition wall in a liquid-tight or air-tight manner. The pipe extending to the other end of the fixed shaft serves as the other of the refrigerant supply port and the refrigerant discharge port.
【0014】発明11によれば、冷媒供給口と冷媒排出
口との一方は固定軸の一端に形成され、他方は仕切壁を
貫通して固定軸の他端側に延設される管から形成され
る。冷媒は冷媒供給口と冷媒排出口とにより冷媒通路に
導かれ、固定軸を介して固定子をよく冷却し、固定軸の
一端の軸受の内輪を固定軸を介してよく冷却し、管の側
の軸受の内輪も適当に冷却する。リードは引出穴から軸
受を潜って外部に導くことができる。もっとも、固定軸
の両端の外周の溝から軸受を潜って外部へ導くことは自
由である。According to the eleventh aspect, one of the refrigerant supply port and the refrigerant discharge port is formed at one end of the fixed shaft, and the other is formed of a pipe that penetrates the partition wall and extends to the other end side of the fixed shaft. To be done. The refrigerant is guided to the refrigerant passage by the refrigerant supply port and the refrigerant discharge port, well cools the stator through the fixed shaft, well cools the inner ring of the bearing at one end of the fixed shaft through the fixed shaft, and the side of the pipe. Also properly cool the inner ring of the bearing. The lead can be guided to the outside through the bearing through the bearing. However, it is free to guide the bearing to the outside through the grooves on the outer periphery of both ends of the fixed shaft.
【0015】発明12は発明11において、冷媒通路の
内径を、冷媒供給口又は冷媒排出口より大径とするもの
である。発明12によれば、大径な冷媒通路は外周面積
を拡大して固定子をさらによく冷却する。発明13は発
明12において、固定軸の冷媒通路を軸心と直角な面で
個別に分割されたものを前記面で固着するものである。
発明13によれば、発明11及び発明12と同様に、冷
媒供給口と冷媒排出口との一方は固定軸の一端に形成さ
れ、他方は仕切壁を貫通して固定軸の他端側に延設され
る管から形成される。冷媒は冷媒供給口と冷媒排出口と
により冷媒通路に導かれ、固定軸を介して固定子をよく
冷却し、固定軸の一端の軸受の内輪を固定軸を介してよ
く冷却し、管の側の軸受の内輪も適当に冷却する。リー
ドは引出穴から軸受を潜って外部に導くことができる。
もっとも、固定軸の両端の外周の溝から軸受を潜って外
部へ導くことは自由である。大径な冷媒通路は外周面積
を拡大して固定子をさらによく冷却する。発明13の特
徴として、固定軸の一端から冷媒通路を旋盤による困難
な中ぐりをすることなく、面で分割された個別の固定軸
は開かれた冷媒通路から旋盤などにより容易に加工で
き、面はアーク溶接や摩擦溶接で固着される。A twelfth aspect of the present invention is the same as the eleventh aspect, wherein the inner diameter of the refrigerant passage is larger than that of the refrigerant supply port or the refrigerant discharge port. According to the twelfth aspect, the large-diameter refrigerant passage enlarges the outer peripheral area and cools the stator better. A thirteenth aspect of the present invention is the same as the twelfth aspect of the present invention, in which the refrigerant passages of the fixed shaft are individually divided by a plane perpendicular to the axis, and are fixed on the plane.
According to the invention 13, as in the invention 11 and the invention 12, one of the coolant supply port and the coolant discharge port is formed at one end of the fixed shaft, and the other penetrates the partition wall and extends to the other end side of the fixed shaft. It is formed from a pipe that is installed. The refrigerant is guided to the refrigerant passage by the refrigerant supply port and the refrigerant discharge port, well cools the stator through the fixed shaft, well cools the inner ring of the bearing at one end of the fixed shaft through the fixed shaft, and the side of the pipe. Also properly cool the inner ring of the bearing. The lead can be guided to the outside through the bearing through the bearing.
However, it is free to guide the bearing to the outside through the grooves on the outer periphery of both ends of the fixed shaft. The large-diameter refrigerant passage expands the outer peripheral area to cool the stator better. A feature of the invention 13 is that the individual fixed shafts divided by the surface can be easily machined from the opened refrigerant passage by a lathe or the like without making a difficult boring of the refrigerant passage from one end of the fixed shaft by the lathe. Are fixed by arc welding or friction welding.
【0016】発明14は発明11、12又は13におい
て、冷媒通路の内面に冷却フィン又は凹凸を設けるもの
である。発明14によれば、冷却フィン又は凹凸は、冷
媒通路における固定軸の冷媒との熱交換を良好にして益
々よく固定子を冷却する。発明15は発明10から14
までのいずれかにおいて、冷媒通路に連通する管の先端
を重力方向の上方に曲げて冷媒通路の内壁に接近させる
ものである。発明15によれば、冷媒が液体で流量が少
なく、冷媒通路が短くて径がかなり大きい場合、回転電
機の設置の時の空気が冷媒通路の重力方向の上方に停滞
しても、空気は管の先端から排出される。A fourteenth aspect of the present invention is the same as the eleventh, twelfth, or thirteenth aspect, in which cooling fins or irregularities are provided on the inner surface of the refrigerant passage. According to the fourteenth aspect, the cooling fin or the unevenness improves the heat exchange with the refrigerant of the fixed shaft in the refrigerant passage, and cools the stator more and more. Invention 15 is invention 10 to 14
In any one of the above, the tip of the pipe communicating with the refrigerant passage is bent upward in the direction of gravity to approach the inner wall of the refrigerant passage. According to the fifteenth aspect, in the case where the refrigerant is a liquid and the flow rate is small, the refrigerant passage is short and the diameter is considerably large, even if the air is stagnated above the refrigerant passage in the gravity direction when the rotating electric machine is installed, the air is not Is discharged from the tip of.
【0017】発明16は発明15において、管の先端が
向かう冷媒通路に凹部を形成するものである。発明16
によれば、停滞した空気は凹部に集中し、さらによく空
気は管の先端から排出される。発明17の外側回転子形
冷媒冷却回転電機は、軸受で支承される固定軸に固定子
を固着し、固定子の外周に空隙を介して回転子を配置
し、回転子に取付けたブラケットに軸受を取付ける外側
回転子形回転電機において、固定子が固着される付近の
固定軸の中心部に冷媒を密封したヒートパイプの吸熱部
を埋設し、ヒートパイプの発熱部を固定軸の端部の外部
に配置するものである。発明17によれば、固定子はヒ
ートパイプの原理によりよく冷却される。A sixteenth aspect of the present invention is the same as the fifteenth aspect, in which a recess is formed in the refrigerant passage toward which the tip of the pipe is directed. Invention 16
According to the method, stagnant air is concentrated in the recess, and the air is better discharged from the tip of the pipe. According to another aspect of the invention, there is provided an outer rotor type refrigerant-cooled rotating electric machine in which a stator is fixed to a fixed shaft supported by a bearing, the rotor is arranged on the outer periphery of the stator through a gap, and the bearing is mounted on a bracket attached to the rotor. In the outer rotor type rotating electric machine to be mounted, the heat absorbing part of the heat pipe in which the refrigerant is sealed is embedded in the center of the fixed shaft near where the stator is fixed, and the heat generating part of the heat pipe is external to the end of the fixed shaft. Is to be placed in. According to the invention 17, the stator is well cooled by the heat pipe principle.
【0018】[0018]
【発明の実施の形態】図1は実施例1の回転図示断面図
を含む縦断面図、図2は実施例2の固定子側の縦断面
図、図3は実施例3の回転図示断面図を含む固定子側の
縦断面図、図4は実施例4の固定子側の縦断面図、図5
は実施例5の回転図示断面図を含む固定子側の縦断面図
である。各図において同一符号を付けるものはおよそ同
一機能を持ち説明を省くことがある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a vertical sectional view including a rotary sectional view of the first embodiment, FIG. 2 is a vertical sectional view of a stator side of the second embodiment, and FIG. 3 is a rotary sectional view of the third embodiment. 5 is a vertical cross-sectional view of the stator side including FIG. 4, FIG. 4 is a vertical cross-sectional view of the stator side of the fourth embodiment, and FIG.
FIG. 11 is a vertical cross-sectional view of a stator side including a rotation-illustrated cross-sectional view of the fifth embodiment. In each figure, components having the same reference numerals have approximately the same function and may not be described.
【0019】図1において、軸受1a、1bで支承され
る固定軸11に固定子巻線2aを持つ固定子2を固着す
る。固定子2の外周に空隙を介して回転子3を配置す
る。回転子3に取付けたブラケット4a、4bに軸受1
a、1bを取付ける。ここまでは、従来の外側回転子形
回転電機である。実施例1の特徴として、固定子2が固
着される付近の固定軸11の中心部に冷媒通路15を形
成し、固定軸11の一端と他端とに冷媒供給口6sと冷
媒排出口6dとを設け、冷媒供給口6sと冷媒排出口6
dとを冷媒通路15に連通する。この実施例において、
冷媒供給口6sと冷媒排出口6dと冷媒通路15とは同
一断面で連続貫通する。冷媒供給口6sと冷媒排出口6
dとを介して冷媒通路15に、水などの液体又はフロン
などの冷媒7を回転電機の外部から供給する。固定子2
のリード8を固定軸11の外周の溝19から引き出す。
ブラケット4a、4bは全閉形でも開放形でもよい。固
定軸11の両端は図示しない取付具で固定側に据付けら
れるが、小形の回転電機なら片持支持したり、固定軸1
1を支承する軸受1a、1b又はブラケット4a、4b
もいずれか片側だけでもよい。In FIG. 1, a stator 2 having a stator winding 2a is fixed to a fixed shaft 11 supported by bearings 1a and 1b. The rotor 3 is arranged on the outer circumference of the stator 2 with a gap. The bearing 1 is attached to the brackets 4a and 4b attached to the rotor 3.
Install a and 1b. Up to this point, the conventional outer rotor type rotating electrical machine is used. A feature of the first embodiment is that a coolant passage 15 is formed in the central portion of the fixed shaft 11 near where the stator 2 is fixed, and one end and the other end of the fixed shaft 11 have a coolant supply port 6s and a coolant discharge port 6d. Is provided, and the refrigerant supply port 6s and the refrigerant discharge port 6 are provided.
and d communicate with the refrigerant passage 15. In this example,
The coolant supply port 6s, the coolant discharge port 6d, and the coolant passage 15 continuously penetrate in the same cross section. Refrigerant supply port 6s and refrigerant discharge port 6
A liquid such as water or a refrigerant 7 such as chlorofluorocarbon is supplied from the outside of the rotating electric machine to the refrigerant passage 15 via d. Stator 2
The lead 8 is pulled out from the groove 19 on the outer circumference of the fixed shaft 11.
The brackets 4a and 4b may be fully closed or open. Both ends of the fixed shaft 11 are installed on the fixed side by mounting tools (not shown).
Bearings 1a, 1b or brackets 4a, 4b for supporting 1
Also, only one side may be used.
【0020】実施例1によれば、冷媒7は、冷媒供給口
6sと冷媒排出口6dとにより冷媒通路15に導かれ、
固定軸11を介して固定子2をよく冷却し、軸受1a、
1bの内輪も冷媒供給口6sと冷媒排出口6dとのある
固定軸11を介してよく冷却する。溝19は、冷媒供給
口6aと干渉しないし、軸受1aの内輪とも干渉しない
で軸受1aを潜って外部へリード8を導く。According to the first embodiment, the refrigerant 7 is guided to the refrigerant passage 15 by the refrigerant supply port 6s and the refrigerant discharge port 6d,
The stator 2 is well cooled through the fixed shaft 11, and the bearing 1a,
The inner ring of 1b is also well cooled via a fixed shaft 11 having a coolant supply port 6s and a coolant discharge port 6d. The groove 19 guides the lead 8 to the outside through the bearing 1a without interfering with the coolant supply port 6a or interfering with the inner ring of the bearing 1a.
【0021】図2に示す実施例2において、固定軸21
の冷媒通路25の内径を、冷媒供給口6s又は冷媒排出
口6dより大径とする。固定子2のリード8を固定軸2
1の外周の溝19から引き出す。冷媒通路25を軸心と
直角な面22で個別に分割されたものを面22で固着し
たり、冷媒通路25の内面に冷却フィン25a又は凹凸
を設けるとよい。In the second embodiment shown in FIG. 2, the fixed shaft 21
The inner diameter of the refrigerant passage 25 is larger than that of the refrigerant supply port 6s or the refrigerant discharge port 6d. Connect the lead 8 of the stator 2 to the fixed shaft 2
1 through the groove 19 on the outer circumference. It is preferable that the coolant passage 25, which is divided into individual planes 22 perpendicular to the axis, be fixed to the plane 22 or that cooling fins 25a or irregularities be provided on the inner surface of the coolant passage 25.
【0022】実施例2によれば、冷媒7は、冷媒供給口
6sと冷媒排出口6dとにより冷媒通路25に導かれ、
固定軸21を介して固定子2をよく冷却し、軸受1a、
1bの内輪も冷媒供給口6sと冷媒排出口6dとのある
固定軸21を介してよく冷却する。溝19は、冷媒供給
口6s又は冷媒排出口6dと干渉しないし、軸受1a、
1bの内輪とも干渉しないで軸受を潜って外部へリード
8を導く。大径な冷媒通路25は外周面積を拡大して固
定子2をさらによく冷却する。冷媒通路25を面22で
分割しておけば、固定軸21の両端から冷媒通路25を
旋盤による困難な中ぐりをすることなく、面22で分割
された個別の固定軸21は開かれた冷媒通路25から旋
盤などにより容易に加工でき、面22はアーク溶接や摩
擦溶接で固着される。冷却フィン25a又は凹凸は、冷
媒通路25における固定軸21の冷媒7との熱交換を良
好にして益々よく固定子2を冷却する。According to the second embodiment, the refrigerant 7 is guided to the refrigerant passage 25 by the refrigerant supply port 6s and the refrigerant discharge port 6d,
The stator 2 is well cooled through the fixed shaft 21, and the bearing 1a,
The inner ring of 1b is also well cooled through a fixed shaft 21 having a coolant supply port 6s and a coolant discharge port 6d. The groove 19 does not interfere with the coolant supply port 6s or the coolant discharge port 6d, and the bearing 1a,
The lead 8 is guided to the outside through the bearing without interfering with the inner ring of 1b. The large-diameter refrigerant passage 25 expands the outer peripheral area to cool the stator 2 better. If the refrigerant passage 25 is divided by the surface 22, the individual fixed shafts 21 divided by the surface 22 can be opened without the difficult boring of the refrigerant passage 25 from both ends of the fixed shaft 21 by the lathe. It can be easily processed from the passage 25 with a lathe or the like, and the surface 22 is fixed by arc welding or friction welding. The cooling fins 25a or the irregularities improve the heat exchange with the refrigerant 7 of the fixed shaft 21 in the refrigerant passage 25 and cool the stator 2 more and more.
【0023】図3に示す実施例3において、固定子2が
固着される付近の固定軸31の中心部に冷媒通路35を
形成し、固定軸31の一端に並列する冷媒供給口36s
と冷媒排出口36dとを設ける。冷媒供給口36sと冷
媒排出口36dとを冷媒通路35に連通し、冷媒通路3
5の他端に冷媒通路35を閉じる仕切壁36を設ける。
冷媒通路35の内径を、冷媒供給口36sと冷媒排出口
36dとを包絡して軸心と同心の包絡円より大径とする
とよい。また、冷媒供給口36sと冷媒排出口36dと
冷媒通路35とを持つ固定軸31の製造は、中子による
鋳鋼でもよいし、固定軸31に冷媒供給口36sと冷媒
排出口36dとの包絡円を冷媒通路35と共に旋盤加工
してから冷媒供給口36sと冷媒排出口36dとの溝を
持つ棒を嵌め込んでもよいし、冷媒供給口36sと冷媒
排出口36dとのいずれか一方を固定軸31の軸心と一
致させて冷媒通路35を中ぐりし、他方を偏心させても
よい。しかし、固定軸31の冷媒通路35を軸心と直角
な面22で個別に分割されたものを面22で固着すると
工作が容易である。リード8は仕切壁36の他端側の中
空穴37から軸受1aを潜って外部に導くが、実施例1
又は実施例2のように、固定軸31の外周の溝から外部
に導いてもよい。図示しないが、実施例2のように冷媒
通路35の内面に冷却フィン又は凹凸を設けることもで
きる。In the third embodiment shown in FIG. 3, a refrigerant passage 35 is formed in the central portion of the fixed shaft 31 near where the stator 2 is fixed, and a refrigerant supply port 36s parallel to one end of the fixed shaft 31.
And a refrigerant discharge port 36d. The refrigerant supply port 36s and the refrigerant discharge port 36d are communicated with the refrigerant passage 35, and the refrigerant passage 3
A partition wall 36 that closes the refrigerant passage 35 is provided at the other end of 5.
It is preferable that the inner diameter of the refrigerant passage 35 be larger than the enveloping circle that is concentric with the shaft center by enclosing the refrigerant supply port 36s and the refrigerant discharge port 36d. Further, the fixed shaft 31 having the refrigerant supply port 36s, the refrigerant discharge port 36d, and the refrigerant passage 35 may be manufactured by casting steel using a core, or the fixed shaft 31 may have an envelope circle of the refrigerant supply port 36s and the refrigerant discharge port 36d. May be lathe-machined together with the coolant passage 35, and then a rod having a groove between the coolant supply port 36s and the coolant discharge port 36d may be fitted therein, or one of the coolant supply port 36s and the coolant discharge port 36d may be fixed to the fixed shaft 31. The refrigerant passage 35 may be bored so as to be coincident with the axial center of the above, and the other may be eccentric. However, if the refrigerant passages 35 of the fixed shaft 31 which are individually divided by the surface 22 perpendicular to the axis are fixed on the surface 22, the work is easy. The lead 8 is guided through the hollow hole 37 on the other end side of the partition wall 36 to the outside through the bearing 1a.
Alternatively, as in the second embodiment, it may be guided to the outside from the groove on the outer circumference of the fixed shaft 31. Although not shown, cooling fins or irregularities may be provided on the inner surface of the refrigerant passage 35 as in the second embodiment.
【0024】実施例3によれば、冷媒7は、冷媒供給口
36sと冷媒排出口36dとにより冷媒通路35に導か
れ、固定軸31を介して固定子2をよく冷却し、軸受1
bの内輪も冷媒供給口36sと冷媒排出口36dとのあ
る固定軸31を介してよく冷却する。冷媒供給口36s
と冷媒排出口36dとは共に固定軸31の一端にあり、
他端は仕切壁36で閉じられるので、リード8は固定軸
31の他端の外周の溝や、別途に設ける仕切壁の他端側
の中空穴37から軸受1aを潜って外部に導くことは自
由である。冷媒供給口36sと冷媒排出口36dとのあ
る固定軸31の一端の外周の溝から軸受1bを潜って外
部へ導くことも自由である。また、大径な冷媒通路35
は外周面積を拡大して固定子2をさらによく冷却する。
そして、固定軸31の一端から冷媒通路35を旋盤によ
る困難な中ぐりをすることなく、面22で分割された個
別の固定軸31は開かれた冷媒通路35から旋盤などに
より容易に加工でき、面22はアーク溶接や摩擦溶接で
固着される。According to the third embodiment, the coolant 7 is guided to the coolant passage 35 by the coolant supply port 36s and the coolant discharge port 36d, cools the stator 2 well via the fixed shaft 31, and the bearing 1
The inner ring of b is also well cooled through the fixed shaft 31 having the refrigerant supply port 36s and the refrigerant discharge port 36d. Refrigerant supply port 36s
And the refrigerant discharge port 36d are both at one end of the fixed shaft 31,
Since the other end is closed by the partition wall 36, the lead 8 does not lead the bearing 1a to the outside through the groove on the outer periphery of the other end of the fixed shaft 31 or the hollow hole 37 on the other end side of the partition wall which is separately provided. Be free. It is also free to guide the bearing 1b to the outside through the groove on the outer periphery of one end of the fixed shaft 31 having the refrigerant supply port 36s and the refrigerant discharge port 36d. In addition, the large-diameter refrigerant passage 35
Expands the outer peripheral area to cool the stator 2 better.
Then, the individual fixed shafts 31 divided by the surface 22 can be easily machined from the opened refrigerant passage 35 by a lathe or the like without making a difficult boring of the refrigerant passage 35 from one end of the fixed shaft 31 by the lathe. The surface 22 is fixed by arc welding or friction welding.
【0025】図4に示す実施例4は実施例3の変形であ
り、冷媒供給口6sは固定軸31に直接に形成され、冷
媒排出口は管40からなって冷媒供給口6sの内部に差
し込まれる。また、管40の先端40aを重力方向の上
方に曲げて冷媒通路35の内壁に接近させるとよい。さ
らに、管40の先端40aが向かう冷媒通路35に凹部
41を形成するとよい。管40の先端付近を支持具42
で支持するが、固定軸31の外部の図示しない固定側で
支持してもよい。図示しないが、実施例2のように冷媒
通路35の内面に冷却フィン又は凹凸を設けることもで
きる。The fourth embodiment shown in FIG. 4 is a modification of the third embodiment, in which the refrigerant supply port 6s is formed directly on the fixed shaft 31, and the refrigerant discharge port is formed by the pipe 40 and inserted into the refrigerant supply port 6s. Be done. Further, the tip 40a of the tube 40 may be bent upward in the direction of gravity so as to approach the inner wall of the refrigerant passage 35. Further, the recess 41 may be formed in the refrigerant passage 35 to which the tip 40a of the tube 40 faces. A support tool 42 is provided near the tip of the pipe 40.
However, it may be supported by a fixed side (not shown) outside the fixed shaft 31. Although not shown, cooling fins or irregularities may be provided on the inner surface of the refrigerant passage 35 as in the second embodiment.
【0026】実施例4によれば、実施例3の冷媒供給口
36sと冷媒排出口36dとを共に固定軸31の一端に
設けることが別な構造として具体化される。また、冷媒
7が液体で流量が少なく、冷媒通路35が短くて径がか
なり大きい場合、回転電機の設置の時の空気が冷媒通路
35の重力方向の上方に停滞しても、空気は管40の先
端から排出される。さらに、停滞した空気は凹部41に
集中し、空気は管40の先端からよく排出される。冷媒
通路35の内面に冷却フィン又は凹凸を設けるときに
は、管40の先端40aは冷却フィン又は凹凸の内周近
くでもよく、凹部41は冷却フィン又は凹凸の外周近く
までがよい。管40、先端40a又は凹部41は、実施
例2又は実施例3にも適用できる。According to the fourth embodiment, providing both the refrigerant supply port 36s and the refrigerant discharge port 36d of the third embodiment at one end of the fixed shaft 31 is embodied as another structure. Further, when the refrigerant 7 is a liquid and has a small flow rate, and the refrigerant passage 35 is short and has a large diameter, even if the air is stagnated above the refrigerant passage 35 in the direction of gravity when the rotating electric machine is installed, the air is pipe 40. Is discharged from the tip of. Further, the stagnant air is concentrated in the recess 41, and the air is well discharged from the tip of the pipe 40. When providing cooling fins or irregularities on the inner surface of the refrigerant passage 35, the tips 40a of the tubes 40 may be near the inner periphery of the cooling fins or irregularities, and the recesses 41 may be near the outer periphery of the cooling fins or irregularities. The tube 40, the tip 40a or the recess 41 can be applied to the second or third embodiment.
【0027】図5に示す実施例5において、軸受1a、
1bで支承される固定軸31に固定子2を固着し、固定
子2の外周に空隙を介して図示しない回転子を配置し、
回転子に取付けた図示しないブラケットに軸受1a、1
bを取付ける。従来の外側回転子形回転電機である。固
定子2が固着される付近の固定軸31の中心部に冷媒通
路35を形成し、固定軸31の一端に冷媒供給口6sを
形成して冷媒通路35に連通する。冷媒通路35の他端
に冷媒通路35を閉じる仕切壁36を設け、仕切壁36
の他端側の固定軸31に他端に開放する引出穴51を形
成する。仕切壁36に液密又は気密に貫通して固定軸3
1の他端側に延設される管40を冷媒排出口とする。ま
た、冷媒通路35の内径を、冷媒供給口6sより大径と
するとよい。さらに、固定軸31の冷媒通路35を軸心
と直角な面22で個別に分割されたものを面22で固着
するとよい。図示しないが、冷媒通路35の内面に冷却
フィン又は凹凸を設けるとよい。冷媒通路35に連通す
る管40の先端40aを重力方向の上方に曲げて冷媒通
路35の内壁に接近させるとよいが、管40は仕切壁3
6に液密又は気密に貫通するだけで冷媒通路35内では
欠損してもよい。管40の先端40aが向かう冷媒通路
35に凹部41を形成するとよい。リード8は引出穴5
1から軸受1aを潜って外部に導くと便利である。In the fifth embodiment shown in FIG. 5, the bearing 1a,
The stator 2 is fixed to the fixed shaft 31 supported by 1b, and the rotor (not shown) is arranged on the outer periphery of the stator 2 with a space therebetween.
Bearings 1a, 1 are attached to a bracket (not shown) attached to the rotor.
Install b. It is a conventional outer rotor type rotating electric machine. A coolant passage 35 is formed in the central portion of the fixed shaft 31 near where the stator 2 is fixed, and a coolant supply port 6s is formed at one end of the fixed shaft 31 to communicate with the coolant passage 35. A partition wall 36 that closes the refrigerant passage 35 is provided at the other end of the refrigerant passage 35.
The fixed shaft 31 on the other end side is formed with a drawing hole 51 open to the other end. Fixed shaft 3 penetrating partition wall 36 in a liquid-tight or air-tight manner
The pipe 40 extending to the other end side of 1 is used as a refrigerant outlet. Further, the inner diameter of the refrigerant passage 35 may be larger than that of the refrigerant supply port 6s. Further, it is preferable that the refrigerant passage 35 of the fixed shaft 31 is divided by the surface 22 perpendicular to the axis to be fixed to the surface 22. Although not shown, cooling fins or irregularities may be provided on the inner surface of the refrigerant passage 35. The tip 40a of the pipe 40 communicating with the refrigerant passage 35 may be bent upward in the direction of gravity so as to approach the inner wall of the refrigerant passage 35.
6 may be deficient in the refrigerant passage 35 only by penetrating liquid-tight or air-tight. The recess 41 may be formed in the refrigerant passage 35 to which the tip 40a of the tube 40 faces. Lead 8 is pull-out hole 5
It is convenient to divert the bearing 1a from 1 and guide it to the outside.
【0028】実施例5によれば、冷媒供給口6sは固定
軸31の一端に形成され、冷媒排出口は仕切壁36を貫
通して固定軸31の他端側に延設される管40から形成
される。冷媒7は冷媒供給口6sと冷媒排出口である管
40とにより冷媒通路35に導かれ、固定軸31を介し
て固定子2をよく冷却し、固定軸31の一端の軸受1b
の内輪を固定軸31を介してよく冷却し、管40の側の
軸受1aの内輪も適当に冷却する。リード8は引出穴5
1から軸受1aを潜って外部に導くことができる。もっ
とも、固定軸31の両端の外周の溝から軸受1a、1b
を潜って外部へ導くことは自由である。また、大径な冷
媒通路35は外周面積を拡大して固定子2をさらによく
冷却する。さらに、固定軸31の一端から冷媒通路35
を旋盤による困難な中ぐりをすることなく、面22で分
割された個別の固定軸31は開かれた冷媒通路35から
旋盤などにより容易に加工でき、面22はアーク溶接や
摩擦溶接で固着される。管40の先端40aと凹部41
との作用は実施例4に説明した。全ての実施例におい
て、管の先端を重力方向の上方に曲げるものは冷媒排出
口に限定されるが、それ以外においては、冷媒供給口と
冷媒排出口とは入れ換え可能である。According to the fifth embodiment, the coolant supply port 6s is formed at one end of the fixed shaft 31, and the coolant discharge port extends from the pipe 40 extending through the partition wall 36 to the other end side of the fixed shaft 31. It is formed. The coolant 7 is guided to the coolant passage 35 by the coolant supply port 6s and the pipe 40 serving as a coolant discharge port, cools the stator 2 well via the fixed shaft 31, and the bearing 1b at one end of the fixed shaft 31.
The inner ring of 1 is well cooled through the fixed shaft 31, and the inner ring of the bearing 1a on the tube 40 side is also appropriately cooled. Lead 8 is pull-out hole 5
It is possible to guide the bearing 1a from the underside of the bearing 1. However, from the grooves on the outer periphery of the fixed shaft 31 to the bearings 1a, 1b.
It is free to dive in and lead to the outside. Further, the large-diameter refrigerant passage 35 enlarges the outer peripheral area to further cool the stator 2. Further, from one end of the fixed shaft 31 to the refrigerant passage 35
The individual fixed shafts 31 divided by the surface 22 can be easily machined from the opened refrigerant passage 35 by a lathe or the like without making difficult boring by a lathe, and the surface 22 is fixed by arc welding or friction welding. It Tip 40a of tube 40 and recess 41
The action of and was explained in Example 4. In all the examples, the pipe whose tip is bent upward in the direction of gravity is limited to the coolant outlet, but in other cases, the coolant supply port and the coolant outlet can be interchanged.
【0029】また、実施例1において、冷媒供給口6
s、冷媒通路15又は冷媒排出口6dに冷却フィン又は
凹凸を設けてもよい。なお、実施例を図示するまでもな
く、冷媒供給口、冷媒排出口及び冷媒通路がない固定軸
11、21又は31の中心部に、冷媒を密封した公知の
ヒートパイプの吸熱部を埋設し、ヒートパイプの発熱部
を固定軸の端部の外部に配置すると、固定子2はよく冷
却される。Further, in the first embodiment, the refrigerant supply port 6
s, the cooling medium passage 15 or the cooling medium discharge port 6d may be provided with cooling fins or irregularities. It should be noted that, without needing to illustrate the example, the refrigerant supply port, the refrigerant discharge port, and the central portion of the fixed shaft 11, 21 or 31 having no refrigerant passage is embedded with a heat absorbing portion of a known heat pipe in which a refrigerant is sealed, When the heat generating portion of the heat pipe is arranged outside the end of the fixed shaft, the stator 2 is cooled well.
【0030】[0030]
【発明の効果】発明1の外側回転子形冷媒冷却回転電機
によれば、冷媒は冷媒通路に導かれて固定子と軸受とを
よく冷却するという効果がある。発明2によれば、大径
な冷媒通路は外周面積を拡大して固定子をさらによく冷
却するという効果がある。発明3によれば、面で分割さ
れた個別の固定軸は開かれた冷媒通路から容易に加工で
きるという効果がある。発明4によれば、冷却フィン又
は凹凸は冷媒通路における固定軸の冷媒との熱交換を良
好にして益々よく固定子を冷却するという効果がある。According to the outer rotor type refrigerant cooling rotary electric machine of the first aspect of the invention, the refrigerant is guided to the refrigerant passage to cool the stator and the bearing well. According to the second aspect of the invention, the large-diameter refrigerant passage has an effect of enlarging the outer peripheral area and further cooling the stator. According to the third aspect of the invention, the individual fixed shafts divided by the surface can be easily machined from the opened refrigerant passage. According to the fourth aspect of the invention, the cooling fins or the irregularities have an effect that the heat exchange with the refrigerant of the fixed shaft in the refrigerant passage is improved and the stator is cooled more and more.
【0031】発明5の外側回転子形冷媒冷却回転電機に
よれば、冷媒は冷媒通路に導かれて固定子をよく冷却す
るという効果があり、リードの外部への引き出しが自由
であるという効果がある。発明6によれば、大径な冷媒
通路は外周面積を拡大して固定子をさらによく冷却する
という効果がある。発明7によれば、面で分割された個
別の固定軸は開かれた冷媒通路から容易に加工できると
いう効果がある。発明8によれば、冷却フィン又は凹凸
は、冷媒通路における固定軸の冷媒との熱交換を良好に
して益々よく固定子を冷却するという効果がある。According to the outer rotor type refrigerant cooling rotary electric machine of the invention 5, there is an effect that the refrigerant is guided to the refrigerant passage to cool the stator well, and there is an effect that the lead can be drawn out to the outside freely. is there. According to the sixth aspect of the invention, the large-diameter refrigerant passage has an effect of enlarging the outer peripheral area and further cooling the stator. According to the invention 7, the individual fixed shafts divided by the surface can be easily machined from the opened refrigerant passage. According to the eighth aspect of the invention, the cooling fins or the irregularities have an effect of improving the heat exchange with the refrigerant of the fixed shaft in the refrigerant passage to cool the stator more and more.
【0032】発明9によれば、発明5の冷媒供給口と冷
媒排出口とを共に固定軸の一端に設けることが1つの構
造として具体化されるという効果がある。発明10によ
れば、発明5の冷媒供給口と冷媒排出口とを共に固定軸
の一端に設けることが別な構造として具体化されるとい
う効果がある。発明11の外側回転子形冷媒冷却回転電
機によれば、リードは引出穴から軸受を潜って外部に導
くことができるという効果がある。もっとも、固定軸の
両端の外周の溝から軸受を潜って外部へ導くことは自由
である。発明12によれば、大径な冷媒通路は外周面積
を拡大して固定子をさらによく冷却するという効果があ
る。発明13によれば、面で分割された個別の固定軸は
開かれた冷媒通路から容易に加工できるという効果があ
る。発明14によれば、冷却フィン又は凹凸は、冷媒通
路における固定軸の冷媒との熱交換を良好にして益々よ
く固定子を冷却するという効果がある。According to the ninth aspect, there is an effect that the refrigerant supply port and the refrigerant discharge port of the fifth aspect are both provided at one end of the fixed shaft as one structure. According to the tenth aspect, there is an effect that providing both the refrigerant supply port and the refrigerant discharge port of the fifth aspect at one end of the fixed shaft is embodied as another structure. According to the outer rotor type refrigerant cooling rotary electric machine of the eleventh aspect of the invention, there is an effect that the lead can be guided to the outside through the bearing hole through the bearing. However, it is free to guide the bearing to the outside through the grooves on the outer periphery of both ends of the fixed shaft. According to the twelfth aspect, the large-diameter refrigerant passage has an effect of enlarging the outer peripheral area and further cooling the stator. According to the thirteenth aspect, the individual fixed shafts divided by the surface can be easily machined from the opened refrigerant passage. According to the fourteenth aspect of the invention, the cooling fins or the irregularities have an effect that the heat exchange with the refrigerant of the fixed shaft in the refrigerant passage is improved and the stator is cooled more and more.
【0033】発明15によれば、冷媒が液体で流量が少
なく、冷媒通路が短くて径がかなり大きい場合、回転電
機の設置の時の空気が冷媒通路の重力方向の上方に停滞
しても、空気は管の先端から排出されるという効果があ
る。発明16によれば、停滞した空気は凹部に集中し、
さらによく空気は管の先端から排出されるという効果が
ある。According to the fifteenth aspect, when the refrigerant is a liquid and the flow rate is small, the refrigerant passage is short and the diameter is considerably large, even when the air is stagnated above the refrigerant passage in the direction of gravity when the rotary electric machine is installed, Air has the effect of being expelled from the tip of the tube. According to the sixteenth aspect, stagnant air is concentrated in the recess,
Better yet, the air is expelled from the tip of the tube.
【0034】発明17の外側回転子形冷媒冷却回転電機
によれば、固定子はヒートパイプの原理によりよく冷却
されるという効果がある。According to the outer rotor type refrigerant cooling rotary electric machine of the seventeenth aspect, there is an effect that the stator is well cooled by the principle of the heat pipe.
【図1】実施例1の回転図示断面図を含む縦断面図FIG. 1 is a longitudinal sectional view including a rotationally sectional view of a first embodiment.
【図2】実施例2の固定子側の縦断面図FIG. 2 is a vertical cross-sectional view of a stator according to a second embodiment.
【図3】実施例3の回転図示断面図を含む固定子側の縦
断面図FIG. 3 is a longitudinal sectional view of a stator side including a rotational sectional view of the third embodiment.
【図4】実施例4の固定子側の縦断面図FIG. 4 is a vertical cross-sectional view of a stator side of Example 4
【図5】実施例5の回転図示断面図を含む固定子側の縦
断面図FIG. 5 is a longitudinal sectional view of a stator side including a rotational sectional view of the fifth embodiment.
1a 軸受 1b 軸受 2 固定子 3 回転子 4a ブラケット 4b ブラケット 6s 冷媒供給口 6d 冷媒排出口 7 冷媒 8 リード 11 固定軸 15 冷媒通路 19 溝 21 固定軸 22 面 25 冷媒通路 25a 冷却フィン 31 固定軸 35 冷媒通路 36 仕切壁 36s 冷媒供給口 36d 冷媒排出
口 37 中空穴 40 管 40a 先端 41 凹部 42 支持具 51 引出穴1a Bearing 1b Bearing 2 Stator 3 Rotor 4a Bracket 4b Bracket 6s Refrigerant supply port 6d Refrigerant outlet 7 Refrigerant 8 Lead 11 Fixed shaft 15 Refrigerant passage 19 Groove 21 Fixed shaft 22 Surface 25 Refrigerant passage 25a Cooling fin 31 Fixed shaft 35 Refrigerant Passage 36 Partition wall 36s Refrigerant supply port 36d Refrigerant discharge port 37 Hollow hole 40 Tube 40a Tip 41 Recess 42 Support tool 51 Draw-out hole
Claims (17)
し、固定子の外周に空隙を介して回転子を配置し、回転
子に取付けたブラケットに軸受を取付ける外側回転子形
回転電機において、固定子が固着される付近の固定軸の
中心部に冷媒通路を形成し、固定軸の一端と他端とに冷
媒供給口と冷媒排出口とを設け、冷媒供給口と冷媒排出
口とを冷媒通路に連通し、固定子のリードを固定軸の外
周の溝から引き出すことを特徴とする外側回転子形冷媒
冷却回転電機。1. An outer rotor type rotary electric machine in which a stator is fixed to a fixed shaft supported by a bearing, the rotor is arranged on the outer circumference of the stator with a gap, and the bearing is mounted on a bracket attached to the rotor. In, in the vicinity of the stator is fixed to form a refrigerant passage in the central portion of the fixed shaft, one end and the other end of the fixed shaft is provided with a coolant supply port and a coolant discharge port, a coolant supply port and a coolant discharge port. Is connected to the refrigerant passage, and the lead of the stator is pulled out from the groove on the outer periphery of the fixed shaft.
電機において、冷媒通路の内径を、冷媒供給口又は冷媒
排出口より大径とすることを特徴とする外側回転子形冷
媒冷却回転電機。2. The outer rotor type refrigerant cooling rotary electric machine according to claim 1, wherein the inner diameter of the refrigerant passage is larger than that of the refrigerant supply port or the refrigerant discharge port. Electric machinery.
電機において、固定軸の冷媒通路を軸心と直角な面で個
別に分割されたものを前記面で固着することを特徴とす
る外側回転子形冷媒冷却回転電機。3. The outer rotor type refrigerant cooling rotary electric machine according to claim 2, wherein the refrigerant passages of the fixed shaft are individually divided by a plane perpendicular to the axis, and are fixed at the plane. Outer rotor type refrigerant cooling rotating electric machine.
媒冷却回転電機において、冷媒通路の内面に冷却フィン
又は凹凸を設けることを特徴とする外側回転子形冷媒冷
却回転電機。4. The outer rotor type refrigerant cooling rotary electric machine according to claim 1, 2 or 3, wherein cooling fins or irregularities are provided on an inner surface of the refrigerant passage.
し、固定子の外周に空隙を介して回転子を配置し、回転
子に取付けたブラケットに軸受を取付ける外側回転子形
回転電機において、固定子が固着される付近の固定軸の
中心部に冷媒通路を形成し、固定軸の一端に冷媒供給口
と冷媒排出口とを設け、冷媒供給口と冷媒排出口とを冷
媒通路に連通し、冷媒通路の他端に冷媒通路を閉じる仕
切壁を設けることを特徴とする外側回転子形冷媒冷却回
転電機。5. An outer rotor type rotary electric machine in which a stator is fixed to a fixed shaft supported by a bearing, the rotor is arranged on the outer periphery of the stator with a gap, and the bearing is mounted on a bracket attached to the rotor. In, the refrigerant passage is formed in the center of the fixed shaft in the vicinity where the stator is fixed, the refrigerant supply port and the refrigerant discharge port are provided at one end of the fixed shaft, and the refrigerant supply port and the refrigerant discharge port are used as the refrigerant passage. An outer rotor type refrigerant cooling rotary electric machine which is provided with a partition wall which communicates with the other end of the refrigerant passage and closes the refrigerant passage.
電機において、冷媒通路の内径を、冷媒供給口と冷媒排
出口とを包絡して軸心と同心の包絡円より大径とするこ
とを特徴とする外側回転子形冷媒冷却回転電機。6. The outer rotor type refrigerant cooling rotary electric machine according to claim 5, wherein an inner diameter of the refrigerant passage is larger than an enveloping circle concentric with the axis by enclosing the refrigerant supply port and the refrigerant discharge port. An outer rotor type refrigerant cooling rotating electric machine characterized by the above.
電機において、固定軸の冷媒通路を軸心と直角な面で個
別に分割されたものを前記面で固着することを特徴とす
る外側回転子形冷媒冷却回転電機。7. The outer rotor type refrigerant cooling rotary electric machine according to claim 6, wherein the refrigerant passages of the fixed shaft are individually divided by a surface perpendicular to the axial center, and fixed on the surface. Outer rotor type refrigerant cooling rotating electric machine.
媒冷却回転電機において、冷媒通路の内面に冷却フィン
又は凹凸を設けることを特徴とする外側回転子形冷媒冷
却回転電機。8. The outer rotor type refrigerant cooling rotary electric machine according to claim 5, 6 or 7, wherein cooling fins or irregularities are provided on the inner surface of the refrigerant passage.
形冷媒冷却回転電機において、冷媒供給口と冷媒排出口
とは、固定軸の一端で並列することを特徴とする外側回
転子形冷媒冷却回転電機。9. The outer rotor type refrigerant cooling rotary electric machine according to claim 5, 6, 7 or 8, wherein the refrigerant supply port and the refrigerant discharge port are arranged in parallel at one end of the fixed shaft. Sub-refrigerant cooling rotary electric machine.
子形冷媒冷却回転電機において、冷媒供給口と冷媒排出
口とのいずれか一方は固定軸に直接に形成され、他方は
管からなって一方の内部に差し込まれることを特徴とす
る外側回転子形冷媒冷却回転電機。10. The outer rotor type refrigerant cooling rotary electric machine according to claim 5, 6, 7 or 8, wherein one of the refrigerant supply port and the refrigerant discharge port is directly formed on the fixed shaft and the other is a pipe. An outer rotor type refrigerant cooling rotary electric machine characterized by being inserted into one inside.
し、固定子の外周に空隙を介して回転子を配置し、回転
子に取付けたブラケットに軸受を取付ける外側回転子形
回転電機において、固定子が固着される付近の固定軸の
中心部に冷媒通路を形成し、固定軸の一端に冷媒供給口
と冷媒排出口との一方を形成して冷媒通路に連通し、冷
媒通路の他端に冷媒通路を閉じる仕切壁を設け、仕切壁
の他端側の固定軸に他端に開放する引出穴を形成し、仕
切壁に液密又は気密に貫通して固定軸の他端側に延設さ
れる管を冷媒供給口と冷媒排出口との他方とすることを
特徴とする外側回転子形冷媒冷却回転電機。11. An outer rotor type rotary electric machine in which a stator is fixed to a fixed shaft supported by a bearing, the rotor is arranged on the outer periphery of the stator with a gap, and the bearing is mounted on a bracket attached to the rotor. In, the refrigerant passage is formed in the central portion of the fixed shaft near where the stator is fixed, and one of the refrigerant supply port and the refrigerant discharge port is formed at one end of the fixed shaft to communicate with the refrigerant passage. A partition wall that closes the refrigerant passage is provided at the other end, a fixed hole on the other end side of the partition wall is formed with a drawing hole that opens to the other end, and the partition wall is penetrated liquid-tightly or airtightly to the other end side of the fixed shaft. An outer rotor type refrigerant cooling rotary electric machine, wherein the pipe extending to the other side is the other side of the refrigerant supply port and the refrigerant discharge port.
回転電機において、冷媒通路の内径を、冷媒供給口又は
冷媒排出口より大径とすることを特徴とする外側回転子
形冷媒冷却回転電機。12. The outer rotor type refrigerant cooling rotary electric machine according to claim 11, wherein the inner diameter of the refrigerant passage is larger than that of the refrigerant supply port or the refrigerant discharge port. Electric machinery.
回転電機において、固定軸の冷媒通路を軸心と直角な面
で個別に分割されたものを前記面で固着することを特徴
とする外側回転子形冷媒冷却回転電機。13. The outer rotor type refrigerant cooling rotary electric machine according to claim 12, wherein the refrigerant passages of the fixed shaft are individually divided by a surface perpendicular to the axis, and fixed on the surface. Outer rotor type refrigerant cooling rotating electric machine.
転子形冷媒冷却回転電機において、冷媒通路の内面に冷
却フィン又は凹凸を設けることを特徴とする外側回転子
形冷媒冷却回転電機。14. The outer rotor type refrigerant cooling rotary electric machine according to claim 11, 12 or 13, wherein cooling fins or irregularities are provided on an inner surface of the refrigerant passage.
載の外側回転子形冷媒冷却回転電機において、冷媒通路
に連通する管の先端を重力方向の上方に曲げて冷媒通路
の内壁に接近させることを特徴とする外側回転子形冷媒
冷却回転電機。15. The outer rotor type refrigerant cooling rotary electric machine according to any one of claims 10 to 14, wherein the tip of a pipe communicating with the refrigerant passage is bent upward in the direction of gravity so as to approach the inner wall of the refrigerant passage. An outer rotor type refrigerant cooling rotating electric machine characterized by the above.
回転電機において、管の先端が向かう冷媒通路に凹部を
形成することを特徴とする外側回転子形冷媒冷却回転電
機。16. The outer rotor type refrigerant cooling rotary electric machine according to claim 15, wherein a concave portion is formed in the refrigerant passage toward which the tip of the pipe is directed.
し、固定子の外周に空隙を介して回転子を配置し、回転
子に取付けたブラケットに軸受を取付ける外側回転子形
回転電機において、固定子が固着される付近の固定軸の
中心部に冷媒を密封したヒートパイプの吸熱部を埋設
し、ヒートパイプの発熱部を固定軸の端部の外部に配置
することを特徴とする外側回転子形冷媒冷却回転電機。17. An outer rotor type electric rotating machine in which a stator is fixed to a fixed shaft supported by a bearing, the rotor is arranged around the outer periphery of the stator with a gap, and the bearing is mounted on a bracket attached to the rotor. In, the heat absorbing portion of the heat pipe in which the refrigerant is sealed is embedded in the central portion of the fixed shaft near where the stator is fixed, and the heat generating portion of the heat pipe is arranged outside the end of the fixed shaft. Outer rotor type refrigerant cooling rotating electric machine.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP31986595A JPH09163680A (en) | 1995-12-08 | 1995-12-08 | Outer side rotary type refrigerant cooling dynamo-electric machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP31986595A JPH09163680A (en) | 1995-12-08 | 1995-12-08 | Outer side rotary type refrigerant cooling dynamo-electric machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH09163680A true JPH09163680A (en) | 1997-06-20 |
Family
ID=18115105
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP31986595A Pending JPH09163680A (en) | 1995-12-08 | 1995-12-08 | Outer side rotary type refrigerant cooling dynamo-electric machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH09163680A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2874137A1 (en) * | 2004-08-04 | 2006-02-10 | Peugeot Citroen Automobiles Sa | Electric machine for use in power transmission device of motor vehicle, has flywheel connected to rotor and having flange fixed perpendicular to rotation axis of flywheel and axial ring gear folded back around stator and rotor |
JP2007252108A (en) * | 2006-03-16 | 2007-09-27 | Ihi Corp | Outer-rotor type synchronous machine and synchronous device |
WO2012139820A3 (en) * | 2011-04-13 | 2013-07-18 | Schaeffler Technologies AG & Co. KG | Drive device comprising a rotor arrangement that can be cooled |
JP2019106860A (en) * | 2017-07-21 | 2019-06-27 | 株式会社デンソー | Rotating electrical machine |
EP3540918A1 (en) * | 2018-03-13 | 2019-09-18 | FLET GmbH | Electric vehicle |
JP2019194056A (en) * | 2018-05-02 | 2019-11-07 | マツダ株式会社 | In-wheel motor drive device |
WO2020077883A1 (en) * | 2018-10-17 | 2020-04-23 | 杭州恒业电机制造有限公司 | Special motor for brush plate of cleaning device |
JP2020527931A (en) * | 2017-07-20 | 2020-09-10 | エー−トラクション ユーロペ ベスローテン フェンノートシャップE−Traction Europe B.V. | In-wheel electric motor with cooling system |
-
1995
- 1995-12-08 JP JP31986595A patent/JPH09163680A/en active Pending
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2874137A1 (en) * | 2004-08-04 | 2006-02-10 | Peugeot Citroen Automobiles Sa | Electric machine for use in power transmission device of motor vehicle, has flywheel connected to rotor and having flange fixed perpendicular to rotation axis of flywheel and axial ring gear folded back around stator and rotor |
JP2007252108A (en) * | 2006-03-16 | 2007-09-27 | Ihi Corp | Outer-rotor type synchronous machine and synchronous device |
WO2012139820A3 (en) * | 2011-04-13 | 2013-07-18 | Schaeffler Technologies AG & Co. KG | Drive device comprising a rotor arrangement that can be cooled |
JP2020527931A (en) * | 2017-07-20 | 2020-09-10 | エー−トラクション ユーロペ ベスローテン フェンノートシャップE−Traction Europe B.V. | In-wheel electric motor with cooling system |
JP2019106860A (en) * | 2017-07-21 | 2019-06-27 | 株式会社デンソー | Rotating electrical machine |
EP3540918A1 (en) * | 2018-03-13 | 2019-09-18 | FLET GmbH | Electric vehicle |
WO2019175170A1 (en) * | 2018-03-13 | 2019-09-19 | Flet Gmbh | Electric vehicle |
US11958347B2 (en) | 2018-03-13 | 2024-04-16 | Flet Gmbh | Electric vehicle |
JP2019194056A (en) * | 2018-05-02 | 2019-11-07 | マツダ株式会社 | In-wheel motor drive device |
WO2020077883A1 (en) * | 2018-10-17 | 2020-04-23 | 杭州恒业电机制造有限公司 | Special motor for brush plate of cleaning device |
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