JPS5863049A - Stator coil connecting device - Google Patents

Stator coil connecting device

Info

Publication number
JPS5863049A
JPS5863049A JP16021881A JP16021881A JPS5863049A JP S5863049 A JPS5863049 A JP S5863049A JP 16021881 A JP16021881 A JP 16021881A JP 16021881 A JP16021881 A JP 16021881A JP S5863049 A JPS5863049 A JP S5863049A
Authority
JP
Japan
Prior art keywords
stator coil
stator
winding
stator winding
connecting device
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
Application number
JP16021881A
Other languages
Japanese (ja)
Inventor
Yutaka Nakajima
豊 中嶋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP16021881A priority Critical patent/JPS5863049A/en
Publication of JPS5863049A publication Critical patent/JPS5863049A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Windings For Motors And Generators (AREA)

Abstract

PURPOSE:To reduce loss of eddy current and suppress rise of temperature, by a method wherein slits developing in the lengthwise direction are formed on coil conductive material to connect the ends stretched out from the core end portion of a stator coil. CONSTITUTION:Connection of the ends of a stator coil stretched out from the end portion of a stator core is made by brazing the stator coil conductive materials 3 that are overlaid in a body. Then, slits 4 developing in the strengthwise direction are made for each connecting portion of the coil conductive materials 3. Thus, a stray magnetic flux current area is reduced, and the temperature caused by the eddy current loss is restrained.

Description

【発明の詳細な説明】 本発明は固定子巻線の接続装置に係り、特に巻線導体同
志を接続した固定子巻線の接続装置に関するものである
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a stator winding connection device, and more particularly to a stator winding connection device in which winding conductors are connected to each other.

固定子巻線の接続装置の従来例が第１図及び第２図に示
されている。タービン発電機等の固定子巻線１は固定子
鉄心１ａにその端部が頭出するように装着されており、
その固定子巻線１の端部間を接続する接続装置２は、第
２図に示されているように端部の′巻線導体３同志を接
続して形成されている。すなわち固定子巻線１の巻線導
体３を夫々重ね合せ、ろう付は等によって接続していた
。A conventional example of a stator winding connection device is shown in FIGS. 1 and 2. A stator winding 1 of a turbine generator or the like is attached to a stator core 1a with its end protruding,
A connecting device 2 for connecting the ends of the stator winding 1 is formed by connecting the winding conductors 3 at the ends as shown in FIG. That is, the winding conductors 3 of the stator winding 1 were overlapped and connected by brazing or the like.

ところでこのように形成された接続装置２は、接続装置
２以外の部分が巻線導体３中に直接冷媒を流して冷却す
る所謂直接冷却によって冷却されているのに対し、外部
から冷却する所謂間接冷却によって冷却されている。そ
の上、漂遊磁束によるうず電流積が発生するので、接続
装置２の温度上昇は他の部分に比べて大きく、従って接
続装置２近傍の巻線導体３を絶縁している絶縁物（図示
せず）の劣化が大きかった。By the way, the connecting device 2 formed in this way is cooled by so-called direct cooling in which the parts other than the connecting device 2 are cooled by flowing a refrigerant directly into the winding conductor 3, whereas the parts other than the connecting device 2 are cooled by so-called indirect cooling in which they are cooled from the outside. Cooled by cooling. Furthermore, since an eddy current product is generated due to stray magnetic flux, the temperature rise in the connecting device 2 is larger than that in other parts. ) had a significant deterioration.

本発明は以上の点に鑑みなされたものであり、その目的
とするところは、温度上昇を低減した固定子巻線の接続
装置を提供するにある。The present invention has been made in view of the above points, and an object thereof is to provide a stator winding connection device that reduces temperature rise.

すなわち本発明は、巻線導体に長手方向に伸びたスリッ
トを設けて接続したことを特徴とするものである。That is, the present invention is characterized in that the winding conductor is connected by providing a slit extending in the longitudinal direction.

以下、図示した実施例に基づいて本発明を説明する。第
３図には本発明の一実施例が示されている。なお従来と
同じ部品には同じ符号を付したので説明は省略する。本
実施例では巻線導体３に長手方向に伸びたスリット４を
設けて接続した。すなわち巻線導体３に夫々スリット４
を設け、このスリット４を設けた巻線導体３同志を重ね
合せ、ろう付は等により接続して接続装置２ａを形成し
た。このようにすることにより、漂遊磁束によるうず電
流の流れる面積がスリット４によって縮小するので、う
ず電流積が低減し、この分だけ接続装置２ａの温度上昇
が低減する。温度上昇が低減するので、巻線導体３に施
された絶縁物の劣化を低減することができる。The present invention will be explained below based on the illustrated embodiments. FIG. 3 shows an embodiment of the invention. Note that parts that are the same as those in the conventional model are given the same reference numerals, and therefore their explanations will be omitted. In this embodiment, a slit 4 extending in the longitudinal direction is provided in the winding conductor 3 for connection. That is, each winding conductor 3 has a slit 4.
The winding conductors 3 provided with the slits 4 were stacked on top of each other and connected by brazing or the like to form a connecting device 2a. By doing so, the area through which eddy currents due to stray magnetic flux flow is reduced by the slits 4, so the eddy current product is reduced, and the temperature rise of the connecting device 2a is reduced by this amount. Since the temperature rise is reduced, deterioration of the insulation applied to the winding conductor 3 can be reduced.

上述のように本発明は、巻線導体に長手方向に伸びたス
リットを設けて接続したので、うず電流の流れる面積が
小さくなってうず電流積が低減するようになって、温度
上昇が低減するようになり、温度上昇を低減した固定子
巻線の接続装置を得ることができる。As described above, in the present invention, since the winding conductor is connected by providing a slit extending in the longitudinal direction, the area through which the eddy current flows is reduced, the eddy current product is reduced, and the temperature rise is reduced. Thus, it is possible to obtain a stator winding connection device that reduces temperature rise.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の固定子巻線の接続装置の固定子巻線の縦
断側面図、第２図は従来の固定子巻線の接続装置の斜視
図、第３図は本発明の固定子巻線の接続装置の一実施例
の斜視図である。 装置、３・・・巻線導体、４・・・ス１１ツｋ　　　　
　　　　−−算　１　口 芹２閉FIG. 1 is a longitudinal cross-sectional side view of a stator winding of a conventional stator winding connection device, FIG. 2 is a perspective view of a conventional stator winding connection device, and FIG. 3 is a stator winding of the present invention. 1 is a perspective view of an embodiment of a wire connecting device; FIG. Device, 3... Winding conductor, 4... S11k
--Math 1 Mouth chrysalis 2 Closed

Claims (1)

【特許請求の範囲】[Claims] １、固定子鉄心より頭出している固定子巻線の端部間の
接続が、前記固定子巻線の巻線導体同志を接続してなる
固定子巻線の接続装置において、前記巻線導体に長手方
向に伸びたスリットを設けて接続したことを特徴とする
固定子巻線の接続装置。1. In a stator winding connection device in which the connection between the ends of the stator winding protruding from the stator core is formed by connecting the winding conductors of the stator winding, the winding conductor A stator winding connection device characterized in that a stator winding is connected by providing a slit extending in the longitudinal direction.
JP16021881A 1981-10-09 1981-10-09 Stator coil connecting device Pending JPS5863049A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16021881A JPS5863049A (en) 1981-10-09 1981-10-09 Stator coil connecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16021881A JPS5863049A (en) 1981-10-09 1981-10-09 Stator coil connecting device

Publications (1)

Publication Number Publication Date
JPS5863049A true JPS5863049A (en) 1983-04-14

Family

ID=15710277

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16021881A Pending JPS5863049A (en) 1981-10-09 1981-10-09 Stator coil connecting device

Country Status (1)

Country Link
JP (1) JPS5863049A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170054349A1 (en) * 2015-07-14 2017-02-23 Kabushiki Kaisha Toshiba Method of assembling rotary electric machine and brazing device for stator coil ends thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170054349A1 (en) * 2015-07-14 2017-02-23 Kabushiki Kaisha Toshiba Method of assembling rotary electric machine and brazing device for stator coil ends thereof
US10050497B2 (en) * 2015-07-14 2018-08-14 Kabushiki Kaisha Toshiba Method of assembling rotary electric machine

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