EP0106856B1 - Boitier, notamment pour transformateurs et procede de fabrication de boitier - Google Patents

Boitier, notamment pour transformateurs et procede de fabrication de boitier Download PDF

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Publication number
EP0106856B1
EP0106856B1 EP83901183A EP83901183A EP0106856B1 EP 0106856 B1 EP0106856 B1 EP 0106856B1 EP 83901183 A EP83901183 A EP 83901183A EP 83901183 A EP83901183 A EP 83901183A EP 0106856 B1 EP0106856 B1 EP 0106856B1
Authority
EP
European Patent Office
Prior art keywords
casing
wall
cooling fin
boiler
fin element
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.)
Expired
Application number
EP83901183A
Other languages
German (de)
English (en)
Other versions
EP0106856A1 (fr
Inventor
Walter Kanis
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.)
Zschokke Wartmann AG
Original Assignee
Zschokke Wartmann AG
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 Zschokke Wartmann AG filed Critical Zschokke Wartmann AG
Priority to AT83901183T priority Critical patent/ATE22191T1/de
Publication of EP0106856A1 publication Critical patent/EP0106856A1/fr
Application granted granted Critical
Publication of EP0106856B1 publication Critical patent/EP0106856B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H01F27/025—Constructional details relating to cooling

Definitions

  • the invention relates to a boiler, in particular for transformers, which is formed from a plurality of wall parts each extending in one direction, each of which is composed of a cooling fin element, a boiler trough side wall and a frame part, the cooling fin element on the inside of the wall part with flat strips and is reinforced on the outside of the wall part with bars placed on the rib edges.
  • a boiler is known from JP-A-55132 013.
  • a boiler is therefore provided around the electrical machine, the housing of which usually has four walls with cooling fin elements and a floor pan. The upper end is bounded by a frame on which a lid is attached to complete the boiler, e.g. B. is screwed.
  • the boiler receives the electrical machine and an oil filling, the latter, in the simplest embodiment of the boiler, conducts the heat generated by the electrical machine to the outer wall of the boiler, from where it is convectively released to the outside air.
  • the ribbed housing walls and the floor pan are welded together by hand or with the aid of simple devices. In this method, the handling, in particular, of the cooling fin elements forming the housing walls is made considerably more difficult owing to their lack of rigidity.
  • the cooling fin element is stiffened by welded rods and flat strips, but a perfect connection of its edges to the edges of the tub side wall and the frame part remains expensive because of the preparation of these edges.
  • GB-A-2068 647 first fold plates are formed and these are bent into an arrangement directed towards a large cooling surface, whereupon the further parts can only be attached to form a complete boiler. This involves relatively complex welding work.
  • DE-A-2 413 617 the entire cooling fin section is first shaped, whereupon the remaining parts of the boiler are attached. This also involves complex welding work, which is further complicated by the lack of rigidity of the cooling fin part.
  • the object of the present invention is to design a boiler of the type described at the outset in such a way that the wall parts can be produced in a stiffened design without expensive adaptation work on the cooling fin element, on the side wall of the tub and on the frame part, without additional welding work being necessary, and that the boiler can be finished in a simple manner through the wall parts produced in this way.
  • a flange is preferably formed on the tub side wall and on the frame part, which has bores which serve to position the wall parts when the boiler is formed.
  • a further claimed method for producing the boiler according to the invention is characterized in that the wall parts with the flange of the frame part are supported on a base, pins inserted through the flange bores, fixed in the base and positioned by brackets inserted into the bores of adjacent flanges of the side wall be held together.
  • a cooling fin element 1 is manufactured.
  • a band of sheet steel the width of the cooling fin element 1 is unwound from a band roll and provided in a folding press with hollow cooling fins 4, the end 5 of which is squeezed together.
  • the beginning and end 6, 7 of this tape are bent, preferably at 45 ° to the tape level (Fig. 1).
  • the cooling fin element 1 produced in this way is stiffened on the side edges by welding a flat strip 8, 9, see FIG. 2, and the cooling fins 4 are stiffened at their ends by two round bars 10, 11. If the length of the cooling fins 4 is large, further round rods can be welded on.
  • a complete wall part is shown, which is composed of the cooling fin element 1, a boiler trough side wall 2 and a frame part 3.
  • the tub side wall 2 and the frame part 3 are welded according to FIG. 3 to the cooling fin element 1 and the flat strips 8, 9 stiffening it, after the ends 5 of the cooling fins 4 have previously been welded by tensile welding.
  • a flange 12, 13 is formed in each case and provided with bores 14, 15.
  • FIG. 4 shows the provision of wall parts 1, 2, 3 for welding together to form a transformer tank.
  • the wall parts 1, 2, 3 are supported and positioned with the part 3 down on a mounting plate 16.
  • the positioning is carried out by means of positioning pins 17 arranged in the mounting plate 16, onto which the flange 13 of the frame part 3 is inserted using some of the bores 15.
  • the holes 14 in the tub side wall 2 serve to insert a bracket 18 and thus hold two wall parts together. Since the cooling fin element 1 is stiffened by the parts 8-11, this also applies to the entire wall parts 1, 2, 3, so that they can be easily positioned.
  • the beginnings and ends 6, 7 of the strips are connected by spot welding, the welding points being expediently moved inwards, in order to prevent or at least keep bending stresses in the circumferential weld seam when internal pressure occurs. Due to the spot welding at the beginnings and ends 6, 7, the housing is fixed in its final shape and can be removed from the mounting plate 16 in order to carry out the final welding of the various welding seams.
  • FIG. 6 shows the welded transformer tank which, in addition to the housing frame according to FIG. 5, has a floor pan 19 welded onto the flanges 12 of the side wall 2 of the tub.
  • the welding of the seams between the wall parts 1, 2, 3 and the floor pan 19 can be carried out manually or by machine. It is essential that wall parts are first created in a stable, dimensionally stable design, the shape stability being achieved by producing the individual parts 1, 2, 3 by simultaneously creating well-weldable and defined welding points.
  • the flat strips 8, 9 (FIG. 2) create a defined welding point which favors the production of a perfect weld seam. In particular, an improvement of the welding point at the base points of the rib ends 5 is achieved.
  • the described boiler and the associated manufacturing process are suitable for all containers in which liquids have to be cooled by ribbed housing walls.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Transformer Cooling (AREA)

Abstract

Chaque paroi du boîtier est constituée d'un élément à ailettes de refroidissement (1), d'une partie de paroi (2) et d'un cadre (3) qui sont mutuellement soudés. L'élément à ailettes est renforcé par des bandes (8, 9) et des tringles (10, 11). Les différentes parois sont montées sur une plaque de montage (16) au moyen de vis (17) et maintenues entre elles par des étriers (18). Les éléments à ailettes sont solidarisés les uns aux autres au moyen de points de soudures sur leurs bords inclinés. Les éléments à ailettes constituent ainsi un boîtier sur lequel peuvent être appliqués les cordons de soudure horizontaux et verticaux définitifs. L'utilisation d'éléments préfabriqués pour le montage de boîtiers de transformateurs permet de diminuer la part de travail manuel car les soudures s'effectuent dans des emplacements précis et facilement accessibles.

Claims (3)

1. Boîtier, notamment pour transformateurs, qui est formé de plusieurs éléments de paroi qui sont orientées chacune dans une direction et dont chacune est constituée par un élément (1) comportant des nervures de réfrigération, par une paroi latérale (2) du bac de boîtier et par une partie de cadre (3), l'élément (1) comportant des nervures de réfrigération étant renforcé, du côté de l'intérieur de la partie de paroi, par des bandes plates (8, 9) et, du côté de l'extérieur de la partie de paroi, par des barres (10, 11) fixées sur les arêtes des nervures, caractérisé en ce que les bandes plates (8, 9) sont fixées à plat sur les bords latéraux de l'élément (1) comportant des nervures de réfrigération et servent de support à la paroi latérale (2) du bac ou à la partie de cadre (3).
2. Boîtier selon la revendication 1, caractérisé en ce que la partie latérale (2) du bac et la partie de cadre (3) comportent chacune une bride (12, 13) réalisée par formage et munie d'alésage (14, 15) assurant le positionnement des parties de paroi pour le montage du boîtier.
3. Procédé de fabrication d'un boîtier selon la revendication 2, caractérisé en ce que les parties de paroi (1, 2, 3) prennent appui, avec la bride (13) de la partie de cadre (3), sur une base (16) et sont positionnées au moyen de chevilles (17), qui sont fixées à la base et traversent les alésages (15) des brides, et sont maintenues assemblées par des étriers (18) qui s'engagent dans les alésages (14) ménagés dans les brides voisines de la paroi latérale (2).
EP83901183A 1982-04-30 1983-04-21 Boitier, notamment pour transformateurs et procede de fabrication de boitier Expired EP0106856B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83901183T ATE22191T1 (de) 1982-04-30 1983-04-21 Kessel, insbesondere fuer transformatoren, und verfahren zu dessen herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2665/82A CH655258A5 (de) 1982-04-30 1982-04-30 Verfahren zur herstellung eines kessels, insbesondere fuer transformatoren.
CH2665/82 1982-04-30

Publications (2)

Publication Number Publication Date
EP0106856A1 EP0106856A1 (fr) 1984-05-02
EP0106856B1 true EP0106856B1 (fr) 1986-09-10

Family

ID=4238820

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83901183A Expired EP0106856B1 (fr) 1982-04-30 1983-04-21 Boitier, notamment pour transformateurs et procede de fabrication de boitier

Country Status (8)

Country Link
US (1) US4589587A (fr)
EP (1) EP0106856B1 (fr)
JP (1) JPS59500689A (fr)
CH (1) CH655258A5 (fr)
DE (1) DE3365989D1 (fr)
FI (1) FI75445C (fr)
SU (1) SU1342434A3 (fr)
WO (1) WO1983003921A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101465195B (zh) * 2007-12-19 2010-12-08 中国北车集团大同电力机车有限责任公司 动力分散、动力集中型变压器油箱的制造方法
DE102009015377B4 (de) * 2008-06-27 2011-12-15 André Meuleman Kühlradiator für einen Transformator
KR200480697Y1 (ko) * 2012-11-13 2016-06-27 엘에스산전 주식회사 변압기 외함의 보강 구조
CN103009009B (zh) * 2012-12-27 2015-06-03 中国西电电气股份有限公司 一种超大型三节式变压器油箱装焊方法
BR112017005190B8 (pt) * 2014-09-17 2023-04-25 Siemens Ag Instalação elétrica e método de atualizar uma instalação elétrica
CN106787435B (zh) * 2017-01-10 2019-02-12 南通润雅机电科技有限公司 一种电梯发电装置
CN108581260B (zh) * 2018-05-15 2020-07-14 山东泰开箱变有限公司 一种机器人全自动焊接配变油箱波纹壁工艺方法
CN114871579B (zh) * 2022-07-06 2022-09-23 艾芦精密机械(江苏)有限公司 基于变压器外壳加工的自动焊接装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55132013A (en) * 1979-03-31 1980-10-14 Toshiba Corp Tank for oil-filled electrical machine

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1515692A (en) * 1924-11-18 Method op welding metallic structures
US1743109A (en) * 1926-11-19 1930-01-14 Westinghouse Electric & Mfg Co Tank structure
DE671286C (de) * 1937-06-05 1939-02-03 Aeg Kuehlgefaess fuer Transformatoren, insbesondere grosser Leistung
US3168777A (en) * 1960-06-07 1965-02-09 Reynolds Metals Co Method of making distribution transformer casings
US3168778A (en) * 1962-03-27 1965-02-09 Burroughs Corp Magnetic core memory assembling apparatus
JPS5593205A (en) * 1979-01-10 1980-07-15 Mitsubishi Electric Corp Manufacturing method of oil filled electrical apparatus casing
JPS5656611A (en) * 1979-10-15 1981-05-18 Toshiba Corp Sealed type transformer
JPS5656610A (en) * 1979-10-15 1981-05-18 Toshiba Corp Tank for oil filled electrical machinery
GB2068647B (en) * 1980-01-30 1983-09-28 Tokyo Shibaura Electric Co Tanks for oil-cooled electrical induction apparatus
US4298771A (en) * 1980-05-19 1981-11-03 General Electric Company Bolted/welded joint and method of perfecting same
JPS5877218A (ja) * 1981-10-31 1983-05-10 Toshiba Corp 油入電気機器用タンクの製造方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55132013A (en) * 1979-03-31 1980-10-14 Toshiba Corp Tank for oil-filled electrical machine

Also Published As

Publication number Publication date
FI75445C (fi) 1988-06-09
JPS59500689A (ja) 1984-04-19
FI75445B (fi) 1988-02-29
FI834849A (fi) 1983-12-29
EP0106856A1 (fr) 1984-05-02
WO1983003921A1 (fr) 1983-11-10
DE3365989D1 (en) 1986-10-16
FI834849A0 (fi) 1983-12-29
SU1342434A3 (ru) 1987-09-30
CH655258A5 (de) 1986-04-15
US4589587A (en) 1986-05-20

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