JP2007143247A - Water-cooled motor, and method of processing waterway in its motor frame - Google Patents

Water-cooled motor, and method of processing waterway in its motor frame Download PDF

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JP2007143247A
JP2007143247A JP2005331433A JP2005331433A JP2007143247A JP 2007143247 A JP2007143247 A JP 2007143247A JP 2005331433 A JP2005331433 A JP 2005331433A JP 2005331433 A JP2005331433 A JP 2005331433A JP 2007143247 A JP2007143247 A JP 2007143247A
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water
motor
motor frame
axial direction
water channel
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Yuji Sasaki
裕司 佐々木
Sukeaki Aida
祐明 会田
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IHI Corp
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IHI Corp
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water-cooled motor which can improve its cooling efficiency and manufacture cost, and a method of processing a waterway in the motor frame. <P>SOLUTION: In the water-cooled motor 1 where a waterway 4 for circulating cooling water is made around a motor frame 2 retaining a stator, a plurality of circumferential ring grooves 5 are made, being lined up axially, at the periphery of the above motor frame 2, and cuts 7 are made to line up axially in each bulkhead 6 demarcating these ring grooves 5, and a defector 8 is provided to alternately contact with either one side 7a and 7b of each cut 7, within these cuts 7 thereby forming one waterway 4. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、冷却水を流通させるための水路が形成された水冷モータおよびそのモータフレームの水路加工方法に関するものである。   The present invention relates to a water-cooled motor having a water channel for circulating cooling water and a water channel processing method for the motor frame.

一般に、大容量モータは発熱量が多く、その小型化を図るためには高い冷却効果が必要とされる。そのような冷却方式としては、水冷が有効である。   In general, a large-capacity motor generates a large amount of heat, and a high cooling effect is required to reduce its size. As such a cooling method, water cooling is effective.

従来、水冷式の冷却構造を備えた水冷モータにおいて、モータの固定子を保持するモータフレームの外周に、冷却水を流通させるための水路を形成した水冷モータが知られている。   2. Description of the Related Art Conventionally, in a water cooling motor having a water cooling type cooling structure, a water cooling motor is known in which a water passage for circulating cooling water is formed on the outer periphery of a motor frame that holds a stator of the motor.

例えば、モータフレームの外周面に、リング状の水路を軸方向に並べて形成し、それらリング状水路に並列に冷却水を流して、モータの冷却を行うものが提案されている。   For example, there has been proposed a structure in which ring-shaped water passages are formed side by side in the axial direction on the outer peripheral surface of a motor frame, and cooling water is allowed to flow in parallel to the ring-like water passages to cool the motor.

また、モータフレームの外周面に、１本の螺旋状の水路を形成し、その螺旋状水路に冷却水を流して、モータの冷却を行うものが提案されている（特許文献１参照）。   Further, there has been proposed one in which a spiral water channel is formed on the outer peripheral surface of the motor frame, and cooling water is allowed to flow through the spiral water channel to cool the motor (see Patent Document 1).

特開２００４−２２９４１８号公報JP 2004-229418 A

しかしながら、上述したモータには、以下のような問題があった。   However, the motor described above has the following problems.

複数のリング状水路を有するモータでは、供給される冷却水が各リング状水路で分散され、各水路ごとの流量および流速が低下してしまうため、冷却効果が低いという問題があった。   In a motor having a plurality of ring-shaped water channels, the supplied cooling water is dispersed in each ring-shaped water channel, and the flow rate and the flow velocity of each water channel are reduced, so that the cooling effect is low.

また、螺旋状水路を有するモータでは、螺旋状加工を必要とするため、製作に手間がかかり、製作コストが増大してしまうという問題があった。   In addition, since a motor having a spiral water channel requires spiral processing, there is a problem that it takes time to manufacture and increases the manufacturing cost.

そこで、本発明の目的は、上記課題を解決し、冷却効率の向上と製造コストの低減とを図ることができる水冷モータおよびそのモータフレームの水路加工方法を提供することにある。   Accordingly, an object of the present invention is to provide a water-cooled motor and a water channel processing method for the motor frame that can solve the above-described problems and can improve the cooling efficiency and reduce the manufacturing cost.

上記目的を達成するために本発明は、固定子を保持するモータフレームの外周に、冷却水を流通させるための水路を形成する水冷モータにおいて、上記モータフレームの外周面に、周方向に沿ったリング溝を複数本軸方向に並べて形成し、それらリング溝を区画する各隔壁に切り欠き部を軸方向に並ぶように形成し、これら切り欠き部内に、各切り欠き部のいずれか一側に交互に接するように反転板を設けて、一本の水路を形成したものである。   In order to achieve the above object, the present invention provides a water-cooled motor that forms a water channel for circulating cooling water on the outer periphery of a motor frame that holds a stator, and is arranged along the circumferential direction on the outer peripheral surface of the motor frame. A plurality of ring grooves are formed side by side in the axial direction, and a notch is formed in each partition partitioning the ring grooves so as to be aligned in the axial direction, and within each of these notches, on either side of each notch A reversing plate is provided so as to be in contact with each other to form a single water channel.

好ましくは、上記反転板が直線状に形成され、上記各隔壁に形成される各切り欠き部は、その切り欠き部の側面が交互に上記反転板と接するように、軸方向に沿って互い違いに並べて形成されるものである。   Preferably, the inversion plate is formed in a straight line, and the cutout portions formed in the partition walls are staggered along the axial direction so that the side surfaces of the cutout portions alternately contact the inversion plate. They are formed side by side.

上記目的を達成するために本発明は、水冷モータの固定子を保持するモータフレームの外周に、冷却水を流通させるための水路を形成する方法において、上記モータフレームを旋回しつつ、そのモータフレームの外周面に軸方向に沿って複数本のリング溝を切削加工し、それらリング溝を区画する各隔壁に、切り欠き部を軸方向に並ぶように形成し、これら切り欠き部内に、各切り欠き部のいずれか一側に交互に接するように、反転板を嵌め込み、上記モータフレームの外周に、上記リング溝を覆うカバー部材を設けたものである。   In order to achieve the above object, the present invention provides a method for forming a water channel for circulating cooling water on the outer periphery of a motor frame that holds a stator of a water cooling motor. A plurality of ring grooves are cut along the axial direction on the outer peripheral surface of each of the ribs, and notches are formed in each partition partitioning the ring grooves so that the notches are aligned in the axial direction. A reversing plate is fitted so as to alternately contact one side of the notch, and a cover member that covers the ring groove is provided on the outer periphery of the motor frame.

本発明によれば、冷却効率の向上と製造コストの低減とを図ることができるという優れた効果を発揮するものである。   According to the present invention, the excellent effect of improving the cooling efficiency and reducing the manufacturing cost is exhibited.

以下、本発明の好適な一実施形態を添付図面に基づいて詳述する。   Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

図１から図５に基づき、本実施形態の水冷モータを説明する。   The water-cooled motor according to the present embodiment will be described with reference to FIGS.

図１および図２に示すように、水冷モータ１は、回転軸１１に取り付けられた回転子（図示せず）と、その回転子の外周に設けられた固定子（図示せず）を保持するモータフレーム２と、そのモータフレーム２を覆うカバー部材３（図１において想像線で示す）とを備え、モータフレーム２の外周には、冷却水を流通させるための水路４が形成される。より具体的には、本実施形態の水冷モータ１は、上記モータフレーム２の外周面に、周方向に沿ったリング溝５を複数本、軸方向に並べて形成し、それらリング溝５を区画する各隔壁６に切り欠き部７を軸方向に並ぶように形成し、これら切り欠き部７内に、各切り欠き部７のいずれかの側面（一側）７ａ、７ｂ（図４参照）に交互に接するように反転板８を設けて、一本の水路４を形成して構成される。   As shown in FIGS. 1 and 2, the water-cooled motor 1 holds a rotor (not shown) attached to the rotating shaft 11 and a stator (not shown) provided on the outer periphery of the rotor. A motor frame 2 and a cover member 3 (shown by an imaginary line in FIG. 1) covering the motor frame 2 are provided, and a water channel 4 for circulating cooling water is formed on the outer periphery of the motor frame 2. More specifically, the water-cooled motor 1 of the present embodiment forms a plurality of ring grooves 5 along the circumferential direction in the outer circumferential surface of the motor frame 2 and forms the ring grooves 5 in the axial direction. Cutout portions 7 are formed in each partition wall 6 so as to be aligned in the axial direction, and the cutout portions 7 are alternately arranged on either side surface (one side) 7a, 7b (see FIG. 4). A reversing plate 8 is provided so as to be in contact with each other, and a single water channel 4 is formed.

図１および図３に示すように、モータフレーム２は、両端が開放した筒体（具体的には、円筒体）の両端部を、各々蓋部で閉塞して形成される。そのモータフレーム２の外周面（外側表面）には、複数本（図例では、５本）のリング溝５が軸方向に並べて形成される。各リング溝５は、モータフレーム２を一周するように設けられ、それらリング溝５が、モータフレーム２の外周面に設けられた略リング状の隔壁６により各々区画される。それら隔壁６には、隣り合うリング溝５同士を連通させるための切り欠き部７が各々形成される。   As shown in FIGS. 1 and 3, the motor frame 2 is formed by closing both ends of a cylindrical body (specifically, a cylindrical body) whose both ends are opened with lids. On the outer peripheral surface (outer surface) of the motor frame 2, a plurality (five in the illustrated example) of ring grooves 5 are formed side by side in the axial direction. Each ring groove 5 is provided so as to go around the motor frame 2, and the ring grooves 5 are partitioned by substantially ring-shaped partition walls 6 provided on the outer peripheral surface of the motor frame 2. Each of the partition walls 6 is formed with a notch 7 for communicating adjacent ring grooves 5 with each other.

図１および図４に示すように、各切り欠き部７は、各隔壁６を周方向に所定長さ切り欠いて形成される。それら切り欠き部７は、全体として軸方向に略並ぶような周方向位置に配置される。本実施形態では、各切り欠き部７は、隣接する切り欠き部７に対して周方向にずらして、かつ二つ隣に位置する切り欠き部７に対して周方向位置が略同一となるように、配置される。つまり、図５に示すように、本実施形態の切り欠き部７は、その切り欠き部７の側面７ａ、７ｂが交互に反転板８と接するように、軸方向に沿って、反転板８を境に互い違いに並べて形成される。   As shown in FIGS. 1 and 4, each notch 7 is formed by notching each partition wall 6 by a predetermined length in the circumferential direction. The cutouts 7 are arranged at circumferential positions that are generally aligned in the axial direction as a whole. In this embodiment, each notch part 7 is shifted in the circumferential direction with respect to the adjacent notch part 7, and the circumferential position is substantially the same with respect to the notch part 7 located two adjacently. Arranged. That is, as shown in FIG. 5, the notch portion 7 of the present embodiment has the reversing plate 8 along the axial direction so that the side surfaces 7 a and 7 b of the notch portion 7 are alternately in contact with the reversing plate 8. Formed alternately on the border.

反転板８は、上記切り欠き部７内に、各切り欠き部７のいずれかの側面（一側）７ａ、７ｂに交互に接するように設けられる。本実施形態の反転板８は、直線状に形成される。その反転板８は、軸方向に、各リング溝５を横切るようにリング溝５の全域に亘り延出する。反転板８は、リング溝５の深さと同じ高さ（モータフレーム径方向に対する長さ）を有する。   The inversion plate 8 is provided in the notch portion 7 so as to alternately contact one of the side surfaces (one side) 7 a and 7 b of the notch portion 7. The reversing plate 8 of the present embodiment is formed in a linear shape. The inversion plate 8 extends over the entire region of the ring groove 5 so as to cross the ring grooves 5 in the axial direction. The reversing plate 8 has the same height as the depth of the ring groove 5 (length with respect to the motor frame radial direction).

以上により、冷却水を流通するための水路４がモータフレーム２の外周に形成される。その水路４は、上記リング溝５により形成されモータフレーム２の外周を周回する複数の周回水路４ａと、上記切り欠き部７および反転板８により形成され周回水路４ａに沿って流れる冷却水を反転させつつ隣接する周回水路４ａへと流すＵターン水路４ｂとからなり、全体として直列に接続された一本の水路４として構成される。   Thus, the water channel 4 for circulating the cooling water is formed on the outer periphery of the motor frame 2. The water channel 4 is formed by the ring groove 5 and reverses the cooling water flowing along the circulation water channel 4a formed by the plurality of circulation water channels 4a that circulate around the outer periphery of the motor frame 2 and the cutout portion 7 and the reversing plate 8. The U-turn water channel 4b is allowed to flow to the adjacent circular water channel 4a while being configured as a single water channel 4 connected in series as a whole.

図１に戻り、モータフレーム２には、上記水路４に冷却水を供給するための供給路１２と、水路４から冷却水を排出するための排出路１３とが、各々形成される。それら供給路１２と排出路１３は、軸方向両側のリング溝５を区画するモータフレーム２の壁面に各々形成され、供給路１２がポンプなどの供給手段に接続される。   Returning to FIG. 1, the motor frame 2 is provided with a supply path 12 for supplying cooling water to the water path 4 and a discharge path 13 for discharging cooling water from the water path 4. The supply path 12 and the discharge path 13 are respectively formed on the wall surface of the motor frame 2 that defines the ring grooves 5 on both sides in the axial direction, and the supply path 12 is connected to a supply means such as a pump.

次に、図３から図５に基づき本実施形態のモータフレーム２の水路加工方法を説明する。   Next, a water channel machining method for the motor frame 2 according to the present embodiment will be described with reference to FIGS.

本実施形態のモータフレーム２の水路加工方法は、水冷モータ１の固定子を保持するモータフレーム２の外周に、冷却水を流通させるための水路４を形成するものであり、例えば、アルミなどからなる円筒体のモータフレーム２に、上述した水路４を形成する。   The water channel processing method of the motor frame 2 of the present embodiment forms the water channel 4 for circulating the cooling water on the outer periphery of the motor frame 2 that holds the stator of the water cooling motor 1, and is made of, for example, aluminum. The water channel 4 described above is formed in the cylindrical motor frame 2.

まず、図３に示すように、モータフレーム２の外周に複数本のリング溝５を形成する。具体的には、上記円筒体のモータフレーム２を周方向に旋回しつつ、そのモータフレーム２の外周面に切削治具などを突き当ててリング溝５を切削加工する。本実施形態では、リング溝５を軸方向に並べて複数本形成する。このリング溝５の形成は、例えば、旋盤加工などにより行う。さらに、モータフレーム２の上記供給路１２と排出路１３（図１参照）とを各々形成する。   First, as shown in FIG. 3, a plurality of ring grooves 5 are formed on the outer periphery of the motor frame 2. Specifically, the ring groove 5 is cut by abutting a cutting jig or the like on the outer peripheral surface of the motor frame 2 while turning the cylindrical motor frame 2 in the circumferential direction. In the present embodiment, a plurality of ring grooves 5 are formed side by side in the axial direction. The ring groove 5 is formed by, for example, lathe processing. Further, the supply path 12 and the discharge path 13 (see FIG. 1) of the motor frame 2 are formed.

次に、図４に示すように、リング溝５間の隔壁６を切り欠いて、切り欠き部７を形成する。本実施形態では、切り欠き部７を軸方向に沿って互い違いに並べて形成する。   Next, as shown in FIG. 4, the partition wall 6 between the ring grooves 5 is cut out to form a cutout portion 7. In the present embodiment, the cutout portions 7 are formed alternately in the axial direction.

次に、図５に示すように、形成した切り欠き部７内に、各切り欠き部７のいずれか一側７ａ、７ｂに交互に接するように、上記直線状の反転板８を嵌め込む。   Next, as shown in FIG. 5, the linear reversal plate 8 is fitted into the formed notch portion 7 so as to alternately contact one side 7 a, 7 b of each notch portion 7.

さらに、上記モータフレーム２の外周に、上記リング溝５を覆うカバー部材３（図２参照）を取り付け、カバー部材３の両端部にシールを施す。   Further, a cover member 3 (see FIG. 2) that covers the ring groove 5 is attached to the outer periphery of the motor frame 2, and both ends of the cover member 3 are sealed.

以上により、本実施形態の上述した水路４がモータフレーム２に形成される。   As described above, the above-described water channel 4 of the present embodiment is formed in the motor frame 2.

次に、図１に基づき本実施形態の水冷モータ１の作用を説明する。   Next, the operation of the water cooling motor 1 of the present embodiment will be described based on FIG.

図１に示すように、供給路１２からリング溝５に流入した冷却水は、そのリング溝５に沿ってモータフレーム２の外周を周回する。その冷却水はモータフレーム２の外周を略一周した後、反転板８に突き当たる。反転板８に突き当たった冷却水は、切り欠き部７でＵターンして、隣接するリング溝５に流入し、そのリング溝５に沿って流れる。以後、冷却水は、周回とＵターンとを繰り返しながら軸方向に進み、排出口１３から排出される。このように、本実施形態では、水路内の冷却水が、モータフレーム２を周方向に周りながら反転板８で反転して、軸方向にジグザグに進む。   As shown in FIG. 1, the cooling water flowing into the ring groove 5 from the supply path 12 circulates around the outer periphery of the motor frame 2 along the ring groove 5. The cooling water hits the reversing plate 8 after making one round of the outer periphery of the motor frame 2. The cooling water hitting the reversing plate 8 makes a U-turn at the notch 7, flows into the adjacent ring groove 5, and flows along the ring groove 5. Thereafter, the cooling water advances in the axial direction while repeating the circulation and the U-turn, and is discharged from the discharge port 13. Thus, in this embodiment, the cooling water in the water channel is reversed by the reversing plate 8 while rotating around the motor frame 2 in the circumferential direction, and proceeds zigzag in the axial direction.

この水路４内の冷却水により、モータフレーム２が冷却される。つまり、発熱した固定子などからモータフレーム２に伝達された熱が、冷却水により奪われ、モータフレーム２および固定子などが冷却される。本実施形態では、冷却水が、各リング溝５の全周を流れつつ、軸方向に並ぶ各リング溝５を順番に進むことで、モータフレーム２が軸方向および周方向の全域に亘り冷却される。   The motor frame 2 is cooled by the cooling water in the water channel 4. That is, the heat transmitted to the motor frame 2 from the heated stator or the like is taken away by the cooling water, and the motor frame 2 and the stator are cooled. In the present embodiment, the cooling water flows in the ring grooves 5 arranged in the axial direction in order while flowing through the entire circumference of each ring groove 5, so that the motor frame 2 is cooled over the entire region in the axial direction and the circumferential direction. The

このように、本実施形態では、各リング溝５を切り欠き部７と反転板８とからなるＵターン水路４ｂで接続することで、各リング溝５が直列に接続されることとなり、リング状の水路に並列に冷却水を流す場合に比べて、高い流速および流量で冷却水を流すことができ、高い冷却効果を得ることができる。つまり、冷却水が流れる水路４を一本の水路４（一本形状）として構成することで、高い冷却効率を図ることができる。   Thus, in this embodiment, each ring groove 5 will be connected in series by connecting each ring groove 5 by the U-turn water channel 4b which consists of the notch part 7 and the inversion board 8, and it will be ring-shaped. Compared with the case where cooling water is made to flow in parallel to the water channel, the cooling water can be made to flow at a high flow rate and flow rate, and a high cooling effect can be obtained. That is, by configuring the water channel 4 through which the cooling water flows as one water channel 4 (one shape), high cooling efficiency can be achieved.

また、本実施形態では、水冷効果が高い１本形状の水路４を、螺旋状加工などを用いることなく、簡単な旋盤加工などで容易に形成することができる。つまり、本実施形態の水路４は、螺旋状の水路４などに比べて、製作に手間がかからず、製作コストの低減を図ることができる。   In this embodiment, the single water channel 4 having a high water cooling effect can be easily formed by simple lathe processing or the like without using spiral processing or the like. That is, the water channel 4 of the present embodiment is less time-consuming to manufacture than the spiral water channel 4 and the like, and the manufacturing cost can be reduced.

このように、本実施形態では、冷却効率の向上と製造コストの低減とを同時に図ることができる。   Thus, in this embodiment, it is possible to simultaneously improve the cooling efficiency and reduce the manufacturing cost.

その他、冷却効果が高いため、大容量モータを小型化する場合にも十分な冷却性能を確保することができる。   In addition, since the cooling effect is high, sufficient cooling performance can be ensured even when the large capacity motor is downsized.

次に、図６に基づき他の実施形態を説明する。   Next, another embodiment will be described based on FIG.

本実施形態は、上述した図１の実施形態とは、反転板の形状と切り欠き部の配置とが異なる。なお、図６において、図１に示したものと同一要素には、同一符号を付す。   This embodiment is different from the above-described embodiment shown in FIG. 1 in the shape of the reversing plate and the arrangement of the notches. In FIG. 6, the same elements as those shown in FIG.

本実施形態の水冷モータ５１では、軸方向に並ぶ各隔壁６を略同一の周方向位置で切り欠いて、切り欠き部６７が形成される。また、反転板６８は、波形状に形成されて複数の屈曲部６８ａを有し、各屈曲部６８ａが、各切り欠き部６７のいずれか一側６７ａ、６７ｂに交互に接するように、上記切り欠き部６７内に設けられる。   In the water-cooled motor 51 of the present embodiment, the partition walls 6 arranged in the axial direction are notched at substantially the same circumferential position, so that the notch 67 is formed. Further, the reversing plate 68 is formed in a wave shape and has a plurality of bent portions 68a, and each of the bent portions 68a alternately contacts the one side 67a, 67b of each of the cutout portions 67. Provided in the notch 67.

本実施形態でも、図１の実施形態と同様の効果が得られ、さらに、切り欠き部６７を容易に加工することができる。   Also in this embodiment, the same effect as that of the embodiment of FIG. 1 is obtained, and the notch 67 can be easily processed.

なお、本発明は、上述の実施形態に限定されず、様々な変形例や応用例が考えられるものである。   In addition, this invention is not limited to the above-mentioned embodiment, Various modifications and application examples can be considered.

例えば、リング溝の本数や、深さなどは、冷却水の流速、流量などに応じて適宜設定することができる。   For example, the number of ring grooves, the depth, and the like can be appropriately set according to the flow rate, the flow rate, and the like of the cooling water.

本発明に係る一実施形態による水冷モータを示す。1 shows a water-cooled motor according to an embodiment of the present invention. 本実施形態の水冷モータの斜視図である。It is a perspective view of the water cooling motor of this embodiment. 本実施形態のモータフレームの水路加工方法を説明するための図であり、リング溝を形成した状態を示す。It is a figure for demonstrating the water channel processing method of the motor frame of this embodiment, and shows the state in which the ring groove was formed. 図３のモータフレームに切り欠き部を形成した状態を示す。The state which formed the notch part in the motor frame of FIG. 3 is shown. 図４のモータフレームに反転板を設けた状態を示す。The state which provided the inversion board in the motor frame of FIG. 4 is shown. 他の実施形態の水冷モータを示す。The water cooling motor of other embodiment is shown.

符号の説明Explanation of symbols

１、５１ 水冷モータ
２ モータフレーム
３ カバー部材
４ 水路
５ リング溝
６ 隔壁
７ 切り欠き部
８ 反転板 1, 51 Water-cooled motor 2 Motor frame 3 Cover member 4 Water channel 5 Ring groove 6 Bulkhead 7 Notch 8 Reversing plate

Claims (3)

固定子を保持するモータフレームの外周に、冷却水を流通させるための水路を形成する水冷モータにおいて、
上記モータフレームの外周面に、周方向に沿ったリング溝を複数本軸方向に並べて形成し、それらリング溝を区画する各隔壁に切り欠き部を軸方向に並ぶように形成し、これら切り欠き部内に、各切り欠き部のいずれか一側に交互に接するように反転板を設けて、一本の水路を形成したことを特徴とする水冷モータ。 In a water cooling motor that forms a water channel for circulating cooling water on the outer periphery of the motor frame that holds the stator,
On the outer peripheral surface of the motor frame, a plurality of ring grooves along the circumferential direction are formed side by side in the axial direction, and a notch is formed in each partition wall defining the ring grooves so as to be aligned in the axial direction. A water-cooled motor characterized in that a reversing plate is provided in the section so as to alternately come into contact with any one side of each notch, thereby forming a single water channel. 上記反転板が直線状に形成され、上記各隔壁に形成される各切り欠き部は、その切り欠き部の側面が交互に上記反転板と接するように、軸方向に沿って互い違いに並べて形成される請求項１記載の水冷モータ。   The reversal plate is formed in a straight line, and the cutout portions formed in the partition walls are alternately formed along the axial direction so that the side surfaces of the cutout portions are alternately in contact with the reversal plate. The water cooling motor according to claim 1. 水冷モータの固定子を保持するモータフレームの外周に、冷却水を流通させるための水路を形成する方法において、
上記モータフレームを旋回しつつ、そのモータフレームの外周面に軸方向に沿って複数本のリング溝を切削加工し、
それらリング溝を区画する各隔壁に、切り欠き部を軸方向に並ぶように形成し、
これら切り欠き部内に、各切り欠き部のいずれか一側に交互に接するように、反転板を嵌め込み、
上記モータフレームの外周に、上記リング溝を覆うカバー部材を設けたことを特徴とするモータフレームの水路加工方法。 In the method of forming a water channel for circulating cooling water on the outer periphery of the motor frame holding the stator of the water cooling motor,
While turning the motor frame, cutting a plurality of ring grooves along the axial direction on the outer peripheral surface of the motor frame,
In each partition wall that partitions these ring grooves, a notch is formed so as to be aligned in the axial direction,
In these notches, reversing plates are fitted so as to alternately contact one side of each notch,
A water channel machining method for a motor frame, wherein a cover member that covers the ring groove is provided on an outer periphery of the motor frame.
JP2005331433A 2005-11-16 2005-11-16 Water-cooled motor, and method of processing waterway in its motor frame Pending JP2007143247A (en)

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