JPH04364343A - Cooling structure for stator winding of motor and fabrication thereof - Google Patents
Cooling structure for stator winding of motor and fabrication thereofInfo
- Publication number
- JPH04364343A JPH04364343A JP13769591A JP13769591A JPH04364343A JP H04364343 A JPH04364343 A JP H04364343A JP 13769591 A JP13769591 A JP 13769591A JP 13769591 A JP13769591 A JP 13769591A JP H04364343 A JPH04364343 A JP H04364343A
- Authority
- JP
- Japan
- Prior art keywords
- stator
- slot
- stator core
- winding
- core
- 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.)
- Granted
Links
- 238000004804 winding Methods 0.000 title claims abstract description 49
- 238000001816 cooling Methods 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 15
- 230000002093 peripheral effect Effects 0.000 claims abstract description 14
- 239000011347 resin Substances 0.000 claims abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 13
- 238000004080 punching Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- 239000002826 coolant Substances 0.000 claims description 4
- 239000012809 cooling fluid Substances 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 6
- 239000000110 cooling liquid Substances 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 229920006351 engineering plastic Polymers 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
Landscapes
- Motor Or Generator Cooling System (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明はステータ巻線を直接に液
体冷却する冷却構造とその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling structure for directly cooling stator windings with liquid, and a method for manufacturing the same.
【０００２】0002
【従来の技術】近年、モータの小型化の要求と、出力向
上の要求という相反する２つの要求が求められる傾向に
ある。この２つの要求を満たすためには、モータの強制
的な冷却が必要となり、初期においては空冷方式が採用
されていた。然しながら空冷方式ではその冷却性能に限
界があり、最近の小型化、高出力の要求には応えられな
い。そこでステータの外周部を液冷するジャケット方式
の冷却構造等が採用されている。2. Description of the Related Art In recent years, there has been a tendency for two contradictory demands to be made: a demand for smaller motors and a demand for increased output. In order to meet these two demands, forced cooling of the motor was required, and air cooling was used in the early days. However, the air cooling method has a limit in its cooling performance and cannot meet the recent demands for miniaturization and high output. Therefore, a jacket-type cooling structure is adopted in which the outer periphery of the stator is liquid-cooled.
【０００３】0003
【発明が解決しようとする課題】然しながら、熱の発生
源であるステータ巻線をステータコアを介して間接的に
冷却する各方式ではその冷却性能に限界がある。依って
本発明は、ステータ巻線を直接に液冷する冷却構造と、
その製造方法の提供を目的とする。However, each method that indirectly cools the stator windings, which are the source of heat generation, through the stator core has a limit in its cooling performance. Therefore, the present invention provides a cooling structure that directly liquid-cools the stator windings;
The purpose is to provide a manufacturing method for the same.
【０００４】0004
【課題を解決するための手段】上記目的に鑑みて本発明
は、スロットの開口しているステータコアの内周面を樹
脂材料によって被覆し、ステータコアの前端と後端にお
いて夫々突出したステータ巻線を囲繞するカバー部材を
Ｏリングを介してステータの各端部に取り付け、該カバ
ー部材に冷却液の入口と出口とを設けたことを特徴とす
るモータにおけるステータ巻線の冷却構造を提供する。[Means for Solving the Problems] In view of the above object, the present invention covers the inner circumferential surface of a stator core in which slots are opened with a resin material, and provides stator windings that protrude at the front and rear ends of the stator core. A cooling structure for a stator winding in a motor is provided, characterized in that a surrounding cover member is attached to each end of the stator via an O-ring, and the cover member is provided with an inlet and an outlet for a cooling liquid.
【０００５】また、スロットが外周にのみ開口したステ
ータコアと、前記スロットに挿入されたステータ巻線と
、該巻線の外側からスロットの残り領域を塞ぐくさび状
のコア部材と、ステータコアの前端と後端において夫々
突出した巻線部をＯリングを介して囲繞、密閉するカバ
ー部材と、該カバー部材に設けた冷却液の入口と出口と
を具備したことを特徴とするモータにおけるステータ巻
線の冷却構造を提供する。[0005] The invention also includes a stator core in which slots are open only on the outer periphery, a stator winding inserted into the slot, a wedge-shaped core member that closes off the remaining area of the slot from the outside of the winding, and a front end and a rear end of the stator core. Cooling of stator windings in a motor characterized by comprising a cover member that surrounds and seals the winding parts protruding from each end via an O-ring, and an inlet and an outlet for a cooling liquid provided in the cover member. Provide structure.
【０００６】更に、外周にのみ開口したスロットの前記
外周側の部分を打ち抜く第１のステップと、残りの部分
を打ち抜く第２のステップとを具備してステータコア用
の各要素板を製造し、スロット用に打ち抜かれた前記第
１ステップによる外周側部分をスロットにステータ巻線
を挿入した後で前記スロットを塞ぐくさび状コア部材と
して使用することを特徴とするステータ巻線の冷却構造
の製造方法を提供する。[0006] Furthermore, each element plate for the stator core is manufactured by punching out the outer circumferential portion of the slot that is open only on the outer circumference, and a second step of punching out the remaining portion. A method for producing a cooling structure for a stator winding, characterized in that the outer peripheral side part punched out in the first step is used as a wedge-shaped core member that closes the slot after the stator winding is inserted into the slot. provide.
【０００７】[0007]
【作用】通常のモータの様に、内周に開口したスロット
を有するステータコアの内周面に、樹脂材料をモールド
成形等によって被覆層を形成することにより、スロット
の開口を閉じることができ、スロット内に冷却液を流す
ことが可能となる。また、スロットが外周側に開口する
ようにステータコアを形成し、巻線を挿入後にその残り
領域をくさび状コア部材によって塞げば閉じられたスロ
ット内に冷却液を流すことができる。更に、上記スロッ
ト形成時に２つのステップに分け、くさび状コア部材と
して利用する部分を打ち抜くステップと、残りの巻線挿
入部分を打ち抜くステップとでスロットを形成するが、
くさび状コア部材を新たに製造する必要がなくなる。[Operation] Like a normal motor, the slot openings can be closed by forming a coating layer on the inner peripheral surface of the stator core, which has slots opened on the inner periphery, by molding a resin material, etc. Allows coolant to flow inside. Furthermore, if the stator core is formed so that the slots are open toward the outer periphery, and the remaining area of the stator core is closed with a wedge-shaped core member after the windings are inserted, the coolant can flow into the closed slots. Furthermore, when forming the slot, the slot is formed in two steps: a step of punching out a portion to be used as a wedge-shaped core member, and a step of punching out the remaining winding insertion portion.
There is no need to newly manufacture a wedge-shaped core member.
【０００８】[0008]
【実施例】以下本発明を添付図面に示す実施例に基づき
、更に詳細に説明する。まず図２を参照すると、モータ
の中央ケーシング１４の前、後に前側ケーシング２１と
後側ケーシング２３とが取り付けられてモータのケーシ
ングを構成している。ロータコア部１８と出力軸１６と
は一体化されており、上述の前後のケーシング２１，２
３に軸受を介して軸承されている。このロータコア部１
８と対向する位置には上記中央ケーシング１４に固定さ
れたステータコア１０が設けられている。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained in more detail below based on embodiments shown in the accompanying drawings. First, referring to FIG. 2, a front casing 21 and a rear casing 23 are attached to the front and rear of the central casing 14 of the motor to constitute the casing of the motor. The rotor core part 18 and the output shaft 16 are integrated, and the above-mentioned front and rear casings 21, 2
3 through a bearing. This rotor core part 1
A stator core 10 fixed to the central casing 14 is provided at a position facing the stator core 8 .
【０００９】上記ステータコア１０の内周側にはスロッ
ト２４が設けられており、その中にはステータ巻線１２
が挿通、配設されている。このスロット２４の開口部分
は、後述の様にして成形されたエンジニアリングプラス
チックの充填層２０によって塞がれており、更にステー
タコア１０の前端と後端に突出した巻線の端部１２Ｆ，
１２Ｒを囲繞するカバー部材３０，３２をステータの前
後に取り付け、その取付に際してはＯリング３４を介在
させている。また、上記カバー部材３０，３２の一方に
は冷却液の流入口形成部材４６を、他方には流出口形成
部材４８を取り付けており、これらの構造によってステ
ータ巻線１２を直接に液冷することができる。A slot 24 is provided on the inner peripheral side of the stator core 10, and the stator winding 12 is inserted into the slot 24.
is inserted and placed. The opening portion of this slot 24 is closed with a filling layer 20 of engineering plastic molded as described below, and the end portions 12F of the winding protruding from the front and rear ends of the stator core 10,
Cover members 30 and 32 surrounding 12R are attached to the front and rear of the stator, and an O-ring 34 is interposed during the attachment. Furthermore, a coolant inlet forming member 46 is attached to one of the cover members 30, 32, and an outlet forming member 48 is attached to the other, and these structures allow direct liquid cooling of the stator winding 12. Can be done.
【００１０】図１はモータの横断面からロータを省略し
た図を示しており、ステータコア１０の内周面を被覆す
る層２２は各スロットの開口部を塞ぐエンジニアリング
プラスチックの充填層２０と同一材料で一体的に製造さ
れる。以下、当該層２０，２２の製造プロセスを説明す
る。FIG. 1 shows a cross-sectional view of the motor with the rotor omitted, and the layer 22 covering the inner peripheral surface of the stator core 10 is made of the same material as the filling layer 20 of engineering plastic that closes the opening of each slot. Manufactured in one piece. The manufacturing process of the layers 20 and 22 will be described below.
【００１１】まず図３を参照すると、内周側に開口２４
Ｉを有するスロット２４を形成するよう電磁鋼板を打ち
抜き加工することによってステータコア１０用要素板を
製作し、それらを積層してステータコア１０を製造する
。この要素板の製作時に、スロット２４を区画形成して
いる２個の側壁２４Ｓであって、スロットの開口２４Ｉ
に近い位置に凹所２６を同時に形成しておく。First, referring to FIG. 3, there is an opening 24 on the inner circumferential side.
Element plates for the stator core 10 are manufactured by punching an electromagnetic steel plate to form slots 24 having I, and the stator core 10 is manufactured by laminating them. When manufacturing this element plate, the two side walls 24S defining the slot 24 and the opening 24I of the slot
At the same time, a recess 26 is formed at a position close to .
【００１２】次のこのスロット２４内へ絶縁紙２８Ａを
挿入してステータ巻線１２を挿入後、絶縁紙２８Ｂでつ
つんで配設した状態を図４に示す。この状態のステータ
コア１０を図５に示す様に金型４０，４２にセットする
。即ち、ステータコア１０の外周面と金型４０とをイン
ローの関係とし、内側の金型４２とステータコア１０の
内周面１０Ｉとは約０．２ｍｍの隙間を有するよう設定
する。更には、上述したスロット２４の側壁２４Ｓに設
けた凹所２６に図示の如く係合するように中子４４を挿
入する。FIG. 4 shows a state in which an insulating paper 28A is then inserted into this slot 24, the stator winding 12 is inserted, and then the stator winding 12 is wrapped with an insulating paper 28B. The stator core 10 in this state is set in the molds 40 and 42 as shown in FIG. That is, the outer peripheral surface of the stator core 10 and the mold 40 are set in a spigot relationship, and the inner mold 42 and the inner peripheral surface 10I of the stator core 10 are set to have a gap of about 0.2 mm. Furthermore, the core 44 is inserted so as to engage with the recess 26 provided in the side wall 24S of the slot 24 as shown in the figure.
【００１３】上記の通りに金型を設定した後に、エンジ
ニアリングプラスチック材料を各中子４４と内側の金型
４２との間に射出し、成形する。その後金型からステー
タを取り出した成品としての状態を図６に示す。ステー
タコア１０の内周面には約０．２ｍｍの厚さのプラスチ
ック層２２が形成されており、また、各スロット２４の
開口部を塞ぐ充填層２０が上記層２２と一体形成されて
いる。図示の充填層２０から明らかな様に、上述した中
子４４は射出された樹脂材料が絶縁紙２８や巻線１２の
方へ流れることを防止する作用を果たすのであり、スロ
ット２４の側壁２４Ｓに凹所２６を設けたのはその中子
４４を保持するためと、樹脂材料がスロット２４の内部
へ流入することをより効果的に遮断するためでもある。After the molds are set up as described above, engineering plastic material is injected between each core 44 and the inner mold 42 and molded. FIG. 6 shows the state of the stator as a finished product after the stator was removed from the mold. A plastic layer 22 with a thickness of approximately 0.2 mm is formed on the inner circumferential surface of the stator core 10, and a filling layer 20 that closes the opening of each slot 24 is integrally formed with the layer 22. As is clear from the illustrated filling layer 20, the above-mentioned core 44 serves to prevent the injected resin material from flowing toward the insulating paper 28 and the winding 12, and the core 44 serves to prevent the injected resin material from flowing toward the insulating paper 28 and the winding 12. The recess 26 is provided to hold the core 44 and to more effectively block the resin material from flowing into the slot 24.
【００１４】金型から取り出された図６の状態のステー
タの巻線１２には、その後、含浸処理を施す。その後既
述の如く、カバー部材３０，３２をＯリング３４を介し
て取り付ける等行って、ステータ巻線１２を直接に液冷
するための冷却構造が完成する。冷却液を図２に示す流
入口形成部材４６から流入させ、スロット２４内を流し
つつ巻線１２を冷却し、後方の流出口形成部材４８から
流れ出る。The stator winding 12 in the state shown in FIG. 6 taken out from the mold is then subjected to an impregnation treatment. Thereafter, as described above, the cover members 30 and 32 are attached via the O-ring 34, and the cooling structure for directly liquid cooling the stator winding 12 is completed. The cooling liquid is made to flow in from the inlet forming member 46 shown in FIG. 2, cools the winding 12 while flowing through the slot 24, and flows out from the outlet forming member 48 at the rear.
【００１５】上述の様な、冷却液の流路を形成する手法
としての他のステータ部の構造を図７と図８によって説
明する。電磁鋼板を打ち抜き加工することによって、図
８に示す様に外周側に開口したスロット２４′を有する
ステータコア用要素板を製作する。この場合、内周側は
全周に亘って閉じており、このスロットの底部へステー
タ巻線１２を挿入、配設する。磁気抵抗の観点から、こ
のスロット２４′の底部の厚さは薄い方が望ましい。Another structure of the stator section as a method of forming the cooling fluid flow path as described above will be explained with reference to FIGS. 7 and 8. By punching an electromagnetic steel plate, a stator core element plate having a slot 24' opened on the outer circumferential side as shown in FIG. 8 is manufactured. In this case, the inner peripheral side is closed over the entire circumference, and the stator winding 12 is inserted and arranged at the bottom of this slot. From the viewpoint of magnetic resistance, it is desirable that the bottom of the slot 24' be thin.
【００１６】積層体１０′は上述の要素板を積層して製
作するが、当該要素板のスロット２４′の打ち抜き加工
時において、スロット２４′は一時に形成するのではな
く、各スロットを２つの領域５０，５２に分けて打ち抜
く。これは、外側の領域５０の打ち抜き片を厚さ方向に
互いに積層した後に巻線１２の外側に挿入するコア部材
５０Ｓとして利用するためである。即ち、巻線１２を挿
入後、その外側の残りのスロット領域を埋めて、磁気抵
抗を低減させ、従来の内周側に開口したスロットを有す
るステータコアと同等のステータコアを形成するためで
ある。The laminate 10' is manufactured by laminating the above-mentioned element plates, but when punching the slots 24' of the element plates, the slots 24' are not formed at once, but each slot is formed in two pieces. It is divided into regions 50 and 52 and punched out. This is because the punched pieces in the outer region 50 are laminated on each other in the thickness direction and then used as the core member 50S which is inserted outside the winding 12. That is, after the winding 12 is inserted, the remaining slot area on the outside thereof is filled to reduce magnetic resistance and form a stator core equivalent to a conventional stator core having slots that open on the inner circumferential side.
【００１７】コア部材５０Ｓは各スロット２４′内に単
に挿入するだけではなく、接着剤によって固定するので
ある。こうして製作されたステータを中央ケーシング１
４に固定した状態を図７に示す。この図は図１に対応す
るものである。当該第２実施例の冷却構造の他の部分の
構造は第１実施例の場合のモータの縦断面図である図２
に示すものと同様である。従って、第１実施例の場合と
同様、モータの内部や外部へ液漏れを発生させることな
くステータ巻線１２を直接に冷却液で冷却することがで
きる。The core member 50S is not only inserted into each slot 24', but is also fixed with adhesive. The stator manufactured in this way is placed in the central casing 1.
4 is shown in FIG. This figure corresponds to FIG. The structure of other parts of the cooling structure of the second embodiment is shown in FIG. 2, which is a longitudinal sectional view of the motor in the first embodiment.
It is similar to that shown in . Therefore, as in the case of the first embodiment, the stator winding 12 can be directly cooled with the cooling liquid without causing liquid leakage to the inside or outside of the motor.
【００１８】[0018]
【発明の効果】以上の説明から明らかな様に本発明によ
ればステータ巻線を直接に液体で冷却することが可能と
なり、冷却効率が向上する。従って、モータの小型化と
その出力向上という相反する２つの要求が達成され得る
。また、そうした冷却構造を製造することも容易、かつ
、効率的に行われ得る。As is clear from the above description, according to the present invention, the stator windings can be directly cooled with liquid, and the cooling efficiency is improved. Therefore, the two contradictory demands of reducing the size of the motor and increasing its output can be achieved. Also, manufacturing such a cooling structure can be done easily and efficiently.
【図１】本発明に係る冷却構造を示す図であり、図２の
矢視線Ｉ−Ｉによるステータ部のみの横断面図である。FIG. 1 is a diagram showing a cooling structure according to the present invention, and is a cross-sectional view of only a stator portion taken along the arrow line II in FIG. 2. FIG.
【図２】本発明に係る冷却構造を有するモータの縦断面
図である。FIG. 2 is a longitudinal sectional view of a motor having a cooling structure according to the present invention.
【図３】図１のステータ部を構成するステータコアの部
分拡大図である。FIG. 3 is a partially enlarged view of a stator core that constitutes the stator section of FIG. 1;
【図４】図３のステータコアにステータ巻線を挿入した
状態を示す図である。FIG. 4 is a diagram showing a state in which stator windings are inserted into the stator core of FIG. 3;
【図５】図４のステータコアをし射出成形用の型にセッ
トした状態を示す図である。FIG. 5 is a diagram showing the stator core of FIG. 4 set in an injection mold.
【図６】図５の状態でステータコアの内周部に樹脂材料
を射出成形した成形品としてのステータの部分図である
。6 is a partial view of the stator as a molded product obtained by injection molding a resin material onto the inner peripheral portion of the stator core in the state shown in FIG. 5; FIG.
【図７】本発明に係る他の冷却構造を示すステータ部の
横断面図である。FIG. 7 is a cross-sectional view of a stator section showing another cooling structure according to the present invention.
【図８】図７のステータ部を構成するプロセスの一段階
を示しており、ステータコアのスロット一部に巻線を挿
入した図である。FIG. 8 shows one step in the process of configuring the stator section of FIG. 7, with windings inserted into some of the slots of the stator core.
１０…ステータコア
１２…ステータ巻線
２０…樹脂材料の充填層
２２…樹脂材料によるステータコア内周面の被覆層２４
…スロット
３０，３２…カバー部材DESCRIPTION OF SYMBOLS 10... Stator core 12... Stator winding 20... Filling layer of resin material 22... Covering layer 24 of the inner peripheral surface of the stator core with resin material
...Slots 30, 32...Cover member
Claims (5)
の内周面を樹脂材料によって被覆し、ステータコアの前
端と後端において夫々突出したステータ巻線を囲繞する
カバー部材をＯリングを介してステータの各端部に取り
付け、該カバー部材に冷却液の入口と出口とを設けたこ
とを特徴とするモータにおけるステータ巻線の冷却構造
。Claim 1: The inner circumferential surface of the stator core where the slots are open is covered with a resin material, and the cover members surrounding the stator windings protruding from the front and rear ends of the stator core are connected to each of the stator windings through an O-ring. 1. A cooling structure for a stator winding in a motor, characterized in that the cover member is attached to an end thereof and has an inlet and an outlet for a coolant.
あって、前記ステータコアの内周面から前記スロットの
内部へ入った位置において、スロットを形成する両側壁
に凹所を形成しており、該凹所と前記ステータコア内周
面との間に亘るスロット開口部付近に前記樹脂材料が充
填され、ステータコア内周面を被覆している同一樹脂材
料の層と一体化して成る請求項１のモータにおけるステ
ータ巻線の冷却構造。2. A recess is formed in both side walls forming the slot at a position near the opening of the slot of the stator and entering the inside of the slot from the inner circumferential surface of the stator core, 2. The stator of the motor according to claim 1, wherein the resin material is filled in the vicinity of the slot opening extending between the stator core and the inner peripheral surface of the stator core, and is integrated with a layer of the same resin material covering the inner peripheral surface of the stator core. Winding cooling structure.
置からスロットの内部へ入った位置において、スロット
を形成する両側壁に凹所を形成したステータコアを準備
し、該ステータコアの各スロット内へ絶縁紙の巻かれた
ステータ巻線を挿入し、前記両凹所間に亘って中子を挿
入すると共にステータコアの外周をインローにした成形
型に入れて樹脂材料を射出成形し、前記中子と成形型を
取り除いた後にステータ巻線を含浸し、前記ステータ巻
線のステータの端部への突出部にＯリングを介してカバ
ー部材を被せて巻線部を密閉したことを特徴とするステ
ータ巻線の冷却構造の製造方法。3. A stator core is provided in which a recess is formed in both side walls forming the slot at a position near the opening of the slot and entered into the slot from the opening position, and an insulating material is provided in each slot of the stator core. A paper-wrapped stator winding is inserted, a core is inserted between the two recesses, and the outer periphery of the stator core is put into a mold with a spigot, and a resin material is injected and molded with the core. A stator winding characterized in that the stator winding is impregnated after the mold is removed, and a cover member is placed on the protruding part of the stator winding toward the end of the stator via an O-ring to seal the winding part. A method for manufacturing a cooling structure.
タコアと、前記スロットに挿入されたステータ巻線と、
該巻線の外側からスロットの残り領域を塞ぐくさび状の
コア部材と、ステータコアの前端と後端において夫々突
出した巻線部をＯリングを介して囲繞、密閉するカバー
部材と、該カバー部材に設けた冷却液の入口と出口とを
具備したことを特徴とするモータにおけるステータ巻線
の冷却構造。4. A stator core in which slots are opened only on the outer periphery; a stator winding inserted into the slots;
A wedge-shaped core member that closes the remaining area of the slot from the outside of the winding; a cover member that surrounds and seals the winding portions protruding at the front and rear ends of the stator core via an O-ring; 1. A cooling structure for a stator winding in a motor, comprising a cooling fluid inlet and an outlet.
周側の部分を打ち抜く第１のステップと、残りの部分を
打ち抜く第２のステップとを具備してステータコア用の
各要素板を製造し、スロット用に打ち抜かれた前記第１
ステップによる外周側部分をスロットにステータ巻線を
挿入した後で前記スロットを塞ぐくさび状コア部材とし
て使用することを特徴とするステータ巻線の冷却構造の
製造方法。5. Each element plate for a stator core is manufactured by manufacturing each element plate for a stator core, comprising a first step of punching out a portion on the outer peripheral side of the slot that is open only on the outer periphery, and a second step of punching out the remaining portion. Said first punched out for
A method of manufacturing a cooling structure for a stator winding, characterized in that the outer peripheral side portion formed by the step is used as a wedge-shaped core member that closes the slot after the stator winding is inserted into the slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3137695A JP2716286B2 (en) | 1991-06-10 | 1991-06-10 | Cooling structure of stator winding in motor and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3137695A JP2716286B2 (en) | 1991-06-10 | 1991-06-10 | Cooling structure of stator winding in motor and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04364343A true JPH04364343A (en) | 1992-12-16 |
| JP2716286B2 JP2716286B2 (en) | 1998-02-18 |
Family
ID=15204649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3137695A Expired - Fee Related JP2716286B2 (en) | 1991-06-10 | 1991-06-10 | Cooling structure of stator winding in motor and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2716286B2 (en) |
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|---|---|---|---|---|
| EP1215801A2 (en) * | 2000-12-14 | 2002-06-19 | Nissan Motor Co., Ltd. | Rotating electric machine and method of manufacture therefor |
| EP1241773A2 (en) | 2001-03-14 | 2002-09-18 | Nissan Motor Co., Ltd. | Rotating electrical machine with air-gap sleeve |
| JP2003009437A (en) * | 2001-06-25 | 2003-01-10 | Nissan Motor Co Ltd | Cooling structure of rotary electric machine and method for manufacturing the same |
| US6515384B1 (en) * | 1999-11-17 | 2003-02-04 | Nissan Motor Co., Ltd. | Motor/generator with equalized coolant distribution |
| US6653758B2 (en) | 2001-08-28 | 2003-11-25 | Nissan Motor Co., Ltd. | Stator structure for rotary electric machine |
| FR2840122A1 (en) * | 2002-05-23 | 2003-11-28 | Renault Sa | Electrical machine cooled by liquid circulation has cylindrical stator with cavities to house windings and co-axial inserts which channel cooling liquid axially through the winding housings |
| US6713927B2 (en) | 2000-12-14 | 2004-03-30 | Nissan Motor Co., Ltd. | Rotating electric machine |
| JP2004112856A (en) * | 2002-09-13 | 2004-04-08 | Nissan Motor Co Ltd | Cooling structure for rotary electric machine and its manufacturing method |
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| US6809442B2 (en) | 2001-09-26 | 2004-10-26 | Nissan Motor Co., Ltd. | Stator structure for rotary electric machine |
| US6933633B2 (en) | 2001-10-03 | 2005-08-23 | Nissan Motor Co., Ltd. | Rotating electric machine and cooling structure for rotating electric machine |
| JP2005348594A (en) * | 2004-05-06 | 2005-12-15 | Nissan Motor Co Ltd | Cooling structure for motor generator |
| EP1780872A2 (en) * | 2005-10-26 | 2007-05-02 | Festool GmbH | Electric motor and manufacturing method of the same |
| US7919890B2 (en) | 2005-01-17 | 2011-04-05 | Toyota Jidosha Kabushiki Kaisha | Rotating electric machine |
| WO2017022639A1 (en) * | 2015-08-06 | 2017-02-09 | 日本電産株式会社 | Cooling device and motor |
| DE102017221801A1 (en) * | 2017-12-04 | 2019-06-06 | Mahle International Gmbh | Method for producing a stator for an electrical machine |
| DE102017221808A1 (en) * | 2017-12-04 | 2019-06-06 | Mahle International Gmbh | Method for producing a stator for an electrical machine |
| JP2020521422A (en) * | 2017-05-19 | 2020-07-16 | マーレ インターナショナル ゲゼルシャフト ミット ベシュレンクテル ハフツングＭＡＨＬＥ Ｉｎｔｅｒｎａｔｉｏｎａｌ ＧｍｂＨ | Electric machine |
| DE102020117267A1 (en) | 2020-07-01 | 2022-01-05 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Stator arrangement with cooling |
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|---|---|---|---|---|
| US6870292B2 (en) | 2001-11-28 | 2005-03-22 | Nissan Motor Co., Ltd. | Stator for motor |
| EP2658098A4 (en) | 2010-12-22 | 2016-06-29 | Ihi Corp | Rotator |
| DE102021113225A1 (en) | 2021-05-21 | 2022-11-24 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Stator device for an electrical machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5395207A (en) * | 1977-02-01 | 1978-08-21 | Toshiba Corp | Electric rotary machine |
-
1991
- 1991-06-10 JP JP3137695A patent/JP2716286B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5395207A (en) * | 1977-02-01 | 1978-08-21 | Toshiba Corp | Electric rotary machine |
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|---|---|---|---|---|
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| EP1102383B1 (en) * | 1999-11-17 | 2012-04-18 | Nissan Motor Co., Ltd. | Cooling of a cylindrical stator |
| EP1215801A2 (en) * | 2000-12-14 | 2002-06-19 | Nissan Motor Co., Ltd. | Rotating electric machine and method of manufacture therefor |
| US6700283B2 (en) | 2000-12-14 | 2004-03-02 | Nissan Motor Co., Ltd. | Rotating electric machine and method of manufacture therefor |
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| EP1241773A2 (en) | 2001-03-14 | 2002-09-18 | Nissan Motor Co., Ltd. | Rotating electrical machine with air-gap sleeve |
| US6495936B2 (en) | 2001-03-14 | 2002-12-17 | Nissan Motor Co., Ltd. | Rotating electrical machine |
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| US6653758B2 (en) | 2001-08-28 | 2003-11-25 | Nissan Motor Co., Ltd. | Stator structure for rotary electric machine |
| US6809442B2 (en) | 2001-09-26 | 2004-10-26 | Nissan Motor Co., Ltd. | Stator structure for rotary electric machine |
| US6933633B2 (en) | 2001-10-03 | 2005-08-23 | Nissan Motor Co., Ltd. | Rotating electric machine and cooling structure for rotating electric machine |
| FR2840122A1 (en) * | 2002-05-23 | 2003-11-28 | Renault Sa | Electrical machine cooled by liquid circulation has cylindrical stator with cavities to house windings and co-axial inserts which channel cooling liquid axially through the winding housings |
| JP2004112856A (en) * | 2002-09-13 | 2004-04-08 | Nissan Motor Co Ltd | Cooling structure for rotary electric machine and its manufacturing method |
| US7001297B2 (en) | 2002-11-14 | 2006-02-21 | Nissan Motor Co., Ltd. | Hybrid transmission |
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| EP1419921A2 (en) | 2002-11-14 | 2004-05-19 | Nissan Motor Company, Limited | Hybrid transmission |
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| EP1780872A2 (en) * | 2005-10-26 | 2007-05-02 | Festool GmbH | Electric motor and manufacturing method of the same |
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| DE102017221801A1 (en) * | 2017-12-04 | 2019-06-06 | Mahle International Gmbh | Method for producing a stator for an electrical machine |
| DE102017221808A1 (en) * | 2017-12-04 | 2019-06-06 | Mahle International Gmbh | Method for producing a stator for an electrical machine |
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| DE102020117267B4 (en) | 2020-07-01 | 2022-01-20 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Stator arrangement with cooling |
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|---|---|
| JP2716286B2 (en) | 1998-02-18 |
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