EP1022760A2 - Procédé de fabrication d'un contact pour interrupteur à vide - Google Patents

Procédé de fabrication d'un contact pour interrupteur à vide Download PDF

Info

Publication number
EP1022760A2
EP1022760A2 EP00100967A EP00100967A EP1022760A2 EP 1022760 A2 EP1022760 A2 EP 1022760A2 EP 00100967 A EP00100967 A EP 00100967A EP 00100967 A EP00100967 A EP 00100967A EP 1022760 A2 EP1022760 A2 EP 1022760A2
Authority
EP
European Patent Office
Prior art keywords
contact
contact piece
contact carrier
carrier
solder
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
Application number
EP00100967A
Other languages
German (de)
English (en)
Other versions
EP1022760B1 (fr
EP1022760A3 (fr
Inventor
Johannes Meissner
Gerhard Rossmann
Jerrie Lipperts
Alfredo Lietz
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.)
Eaton Industries GmbH
Original Assignee
Moeller GmbH
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 Moeller GmbH filed Critical Moeller GmbH
Publication of EP1022760A2 publication Critical patent/EP1022760A2/fr
Publication of EP1022760A3 publication Critical patent/EP1022760A3/fr
Application granted granted Critical
Publication of EP1022760B1 publication Critical patent/EP1022760B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/0203—Contacts characterised by the material thereof specially adapted for vacuum switches
    • H01H1/0206—Contacts characterised by the material thereof specially adapted for vacuum switches containing as major components Cu and Cr
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
    • H01H11/041—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts by bonding of a contact marking face to a contact body portion
    • H01H11/045—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts by bonding of a contact marking face to a contact body portion with the help of an intermediate layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49204—Contact or terminal manufacturing
    • Y10T29/49208—Contact or terminal manufacturing by assembling plural parts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49204—Contact or terminal manufacturing
    • Y10T29/49208—Contact or terminal manufacturing by assembling plural parts
    • Y10T29/4921—Contact or terminal manufacturing by assembling plural parts with bonding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49204—Contact or terminal manufacturing
    • Y10T29/49208—Contact or terminal manufacturing by assembling plural parts
    • Y10T29/4921—Contact or terminal manufacturing by assembling plural parts with bonding
    • Y10T29/49211—Contact or terminal manufacturing by assembling plural parts with bonding of fused material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49204—Contact or terminal manufacturing
    • Y10T29/49208—Contact or terminal manufacturing by assembling plural parts
    • Y10T29/4921—Contact or terminal manufacturing by assembling plural parts with bonding
    • Y10T29/49211—Contact or terminal manufacturing by assembling plural parts with bonding of fused material
    • Y10T29/49213—Metal

Definitions

  • the invention relates to a method for producing a contact arrangement for a vacuum interrupter with a contact carrier and with a means of a solder material connected under vacuum contact piece, the Contact carrier made of electrically good conductive material, for example made of copper, and the contact piece made of a erosion-resistant and copper-containing sintered material consists.
  • a method of making a contact assembly for a vacuum chamber is known from DE 196 32 573 A1, in which the contact carrier under Vacuum with a contact layer by melting a corresponding one Powder is coated with subsequent solidification of the same.
  • contact carriers with a contact piece in between arranged solder material in a vacuum by melting the solder material and soldering the contact carrier and contact piece together.
  • mechanical non-positive connections between the contact piece and Contact carriers are known, for which only by way of example on DE 44 47 391 C1 and DE 195 34 398 A1 is referred to.
  • solder connection between a contact carrier 1 and a contact piece 10 with the interposition of a solder material 11, for example a solder disk, shown schematically.
  • the contact piece 10 is preferred here a cup-shaped recess 101 into which the solder disk 11 used and then inserted the contact carrier 1 with its receiving end becomes. After heating in a vacuum, the solder disk 11 melts and restores the soldered connection 30 between contact carrier 1 and contact piece 10.
  • a disadvantage of this known method is that with a hanging arrangement of the contact piece 10 on the contact carrier 1 during the production of the solder connection an adequate form fit between the contact piece and contact carrier must be present to during the melting of the solder disk to prevent the contact piece 10 from falling off. In many cases it is necessary for larger contacts with a hanging arrangement during the soldering process use auxiliary structures in a vacuum to prevent the To prevent contact piece or an additional positive locking of the To provide contact piece 10 on the contact carrier 1.
  • the invention has for its object to provide a method with which a contact arrangement with flawless soldered connection points and can be manufactured more easily using the least possible optimized Amounts of solder material.
  • This object is achieved according to the invention in a generic method solved for producing a contact arrangement in that the contact piece directly across the contact carrier, forming a gap the contact surface is pressed and the solder material to the Gap of the contact surface between the contact piece and contact carrier immediately adjacent areas is arranged and then under vacuum the solder material is melted by the application of heat and the melted solder material in the gap of the contact surfaces penetrates between contact carrier and contact piece.
  • the inventive method can be particularly advantageous for Use the manufacture of contact arrangements for vacuum interrupters.
  • the method according to the invention enables an almost full-surface and thus adequate wetting of the contact surface between contact carrier and Contact piece with solder material. It also strengthens the connection between contact carrier and contact piece by ascending solder material melt in which the contact surface between the contact carrier and Contact piece connecting to the outside, preferably vertical gap - Annular gap - reached between contact carrier and contact piece.
  • the invention enables Method, contact carrier with attached contact piece, So in a hanging position, easy to manufacture.
  • the application of the inventive method in the manufacture of vacuum interrupters enables, for example, all solder joints of a pre-assembled Vacuum interrupter in one process train, i.e. to manufacture in an oven cycle.
  • a contact piece is used that has a flat cup-shaped recess into which the contact carrier its receiving end is used, with the flat gap of the contact surface a subsequent between the contact piece and contact carrier An annular gap is formed and the solder material in a ring around the contact carrier at the emerging annular gap between the contact carrier and contact piece is placed so that after melting due to the Gravity and capillary forces in the annular gap and gap along the cup-shaped Recess is drawn into it.
  • the process involves wetting the contact surface almost completely between contact carrier and contact piece through the in the gap molten solder material penetrating and flowing in from the sides reached.
  • the vertical in the side Splitting accumulating solder between a good bond with high strength Contact carrier and contact piece reached is provided.
  • soldering material through holes through the contact carrier to the contact surface between the contact carrier and the contact piece.
  • a contact piece that has a flat Has cup-shaped recess in which the contact carrier with his Insertion end is used, and also a contact carrier is used, the at least one through the contact carrier up to the contact surface with the Has cup-shaped recess extending bore and the solder material is filled into the bores of the contact carrier so that it melts after melting due to gravity and capillary forces along the gap the cup-shaped recess penetrates, including in the peripheral Annular gap.
  • solder can be drilled into the holes in the contact carrier for example in the form of wire.
  • enable these holes provide improved degassing of the space between Contact piece and contact carrier.
  • a Contact piece which has a flat cup-shaped recess, in which the contact carrier is inserted with its receiving end and a contact carrier is used, which on its at the cup-shaped recess adjacent contact surface has at least one recess and filled the solder material into the recess of the contact carrier is so that after melting due to gravity and capillary forces penetrates into the gap along the cup-shaped recess, including in the circumferential annular gap.
  • Another possibility of specifying the method according to claim 1 consists in that a contact piece in a cup-shaped recess Contact carrier is used and the solder material in the form of a solder paste the contact piece and over the ring gap end between contact carrier and Contact piece is layered so that it melts after melting gravity and capillary forces in the gap along the cup-shaped recess is drawn in.
  • a fixation of the contact piece on the contact carrier is also without here Form or frictional connection possible.
  • This variant is particularly for attachment of contacts in a non-hanging position.
  • a solder paste preferably used one based on silver or copper, whereby during the heating process under vacuum, the binder, binder evaporates, and without residue.
  • the contact piece is caused by surface tension the solder material and / or the adhesive forces of the same, so that the exact positioning is ensured.
  • solder material is used so that after the complete wetting of the gap residual melt of solder remaining between the contact carrier and the contact piece is used to seal the solder feed point, for example as a residual plug closes the solder feed point.
  • the method according to the invention thus enables flawless manufacture of soldered connections between contact pieces and contact carrier also in a hanging arrangement, which is particularly advantageous in connection with vacuum interrupters.
  • the method according to the invention can be further developed and used to the extent that the contact carrier and contact piece and solder material composite contact arrangement with further components forming the vacuum interrupter, which by means of solder material provided solder joints are to be connected together, such as a second Contact arrangement, a shield part, cover parts, insulating parts, bellows, is preassembled into a structural unit and the preassembled structural unit into one Vacuum soldering furnace is introduced, one of the two contact arrangements is in the hanging position of the contact piece and under action vacuum through heat the simultaneous melting of all solder materials is effected at all solder points, so that all solder connections of the vacuum interrupter be produced in one process step.
  • solder joints can thus be in a hanging position at the same time of a part to be connected, namely in particular the contact piece with a contact carrier as well as in the standing position.
  • solder material only after melting into the gap between the contact piece and contact carrier penetrates, a fall-off due to too much solder melt, what by arranging the solder material between the contact carrier and Avoid contact piece is avoided.
  • the procedure is at least for the one to be manufactured in a hanging position A mechanical clamp connection or a mechanical connection Form fit sufficient to prevent the contact piece from falling off Avoid contact carriers during the creation of the solder connection.
  • Such a mechanical connection between the contact piece and Contact carrier can, for example, at least by forming a profile in some areas on the lateral surface of the contact carrier and / or if necessary also on the inside surface of the recess of the contact piece be provided to easily pinch the contact carrier in a cup-shaped recess of the contact piece for a sufficient To achieve hold in a hanging position.
  • This profiling can be used Example as a knurl with ribs and depressions or just for example through a single profile in the form of a protruding survey on the Mantle surface of the contact carrier may be provided.
  • the elevations or grooves of such a bayonet connection can also be slightly tapered to the end so that when you turn the Contact piece in a contact carrier made of a soft copper a good holding compression fitting is achieved.
  • the groove of the bayonet lock connection as Solder supply channel and then as a solder joint for the two below serve parts to be connected by means of a solder.
  • the contact carrier and the contact pieces can be used depending on the purpose and loading the vacuum interrupter made of the known materials be, for example, in the beginning of the prior art mentioned publications are described.
  • a vacuum interrupter is shown schematically by way of example in FIG. 7 with two contact arrangements, of which one contact arrangement 2, 20 is firmly arranged on the housing and the second contact arrangement 1, 10 over a bellows 7 is movably mounted in the housing.
  • a sufficient positive or mechanically adhesive connection produced, for example by forming the contact piece with a cup-shaped recess 101 into which the contact carrier with its End of recording, which can be set off accordingly, is fitted.
  • a profile 105 is advantageous, at least in some areas on the outer surface of the contact carrier and / or one-sided Provide the lateral surface of the contact piece in order to easily pinch the Contact carrier in the cup-shaped recess 101 of the contact piece for to achieve a sufficient hold in a hanging position.
  • the profiling can be formed, for example, as a knurl 105 with ribs and depressions his.
  • the solder material 11 for example in the form of a ring as solder wire on the edge of the contact piece 10 placed and in contact with the contact carrier 1.
  • solder material 11 melts and into the gap RS between the contact piece 10 and contact carrier 1 penetrates and subsequently in the gap FS between is drawn into the contact surfaces and for full-surface wetting the contact area between the contact carrier and contact piece with solder melt leads.
  • solder also remains up to the upper outer edge of the contact piece 10 and here forms a closing the gap to the outside remaining plugs 11a in the manner of a fillet made of solder material.
  • contact piece 10 is, for example formed with the cup-shaped recess 101, in which the contact carrier 1 is used.
  • the mechanical connection made in this way Non-positive and / or positive locking is sufficient to prevent the contact piece from falling off 10 in the hanging position before and during the manufacture of the Prevent solder connection.
  • the contact carrier 1 itself has at least one, see Fig. 4a, or for example 2, see Fig.
  • 8a, b is a contact arrangement with a contact carrier 1 in the form a stroke conductor and a contact piece 10 with a cup-shaped Recess 101 shown that is designed for mechanical connection a bayonet catch are formed.
  • 8c is the top view on the contact piece 10 with recess 101 and two inwardly projecting Noses 107 shown on the cylindrical inside of the Recess 101 are formed above.
  • the contact carrier 1 instructs its lateral surface on that coming into contact with the contact piece 10 Opposing grooves 106 arranged in a slightly inclined area, into which the contact piece 10 with its lugs 107 can be inserted helically is. With a short turn, the contact piece 10 is then firmly on Contact carrier 1 pressed.
  • the remaining gap can then also be used Lot, as explained in Fig. 2a, b, or from a solder depot, such as shown for example in Fig. 3a, 4a, 5, filled with solder and the Solder connection to be made.
  • the bayonet lock between the contact piece and contact carrier can also two or more bevelled grooves and elevations on the circumference have, the grooves either on the contact carrier or on the contact piece can be formed and then the lugs on the other Part.
  • the groove / grooves can also be slightly conical be shaped, i.e. tapering towards its end, so that when turning it up of the parts to be joined together in the one from a soft Copper existing contact carrier a well-holding clamping screw connection is achieved.
  • the groove 106 on the contact carrier can also can be used as a solder feed channel and at the same time forms a good solder connection area between contact carrier and contact piece.
  • a vacuum interrupter is shown schematically with a fixed arranged contact carrier 2 with firmly connected via a solder connection 31
  • the housing settles from the pot-like cover parts 5 and 6 together with arranged in between Insulator 8.
  • One pot-like cover is on the fixed contact carrier 2 soldered in the area of the connecting surfaces 32 - solder joint.
  • the another pot-like cover 6 is interposed with a bellows 7 attached to the movable contact carrier 1, via the two solder joints 34, 36.
  • a slide bearing 71 provided in the area adjacent to the contact carrier 1 is a slide bearing 71 provided.
  • the pot-like covers 6, 5 are also soldered 35, 33 connected to the insulator. Inside the side of the contact pieces 10, 20, the shield part 4 with getter ring 3 is arranged for shielding the metal vapor arc, collecting radiant heat and dissipating it in the cover and to adequately shield the insulator condensing metal vapor.
  • FIGS. 3 to 5 it is possible to use the in FIG Pre-assemble the vacuum tube shown with its components in the area of Contact gap of the contact piece 10 and the contact carrier 1 and on the corresponding to all connection points 31, 32, 33, 34, 35, 36 to be soldered Arrange the solder material and then the thus removed unit in a vacuum soldering oven to spend and here under vacuum by adding heat to make all soldered connections in one work step - furnace cycle.

Landscapes

  • Manufacture Of Switches (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
EP00100967A 1999-01-22 2000-01-19 Procédé de fabrication d'un contact pour interrupteur à vide Expired - Lifetime EP1022760B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19902500A DE19902500B4 (de) 1999-01-22 1999-01-22 Verfahren zum Herstellen einer Kontaktanordnung für eine Vakuumschaltröhre
DE19902500 1999-01-22

Publications (3)

Publication Number Publication Date
EP1022760A2 true EP1022760A2 (fr) 2000-07-26
EP1022760A3 EP1022760A3 (fr) 2001-05-02
EP1022760B1 EP1022760B1 (fr) 2005-12-21

Family

ID=7895092

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00100967A Expired - Lifetime EP1022760B1 (fr) 1999-01-22 2000-01-19 Procédé de fabrication d'un contact pour interrupteur à vide

Country Status (5)

Country Link
US (1) US6574864B1 (fr)
EP (1) EP1022760B1 (fr)
AT (1) ATE313852T1 (fr)
DE (2) DE19902500B4 (fr)
ES (1) ES2255470T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012098003A1 (fr) * 2011-01-21 2012-07-26 Abb Technology Ag Procédé de fabrication d'un soufflet en accordéon ou à membrane ainsi que soufflet en accordéon ou à membrane utilisé dans la technologie moyenne tension
WO2022069263A1 (fr) * 2020-09-30 2022-04-07 Siemens Aktiengesellschaft Contact pour interrupteur à vide, et procédé de production dudit contact
CN117548886A (zh) * 2024-01-11 2024-02-13 武汉飞特电气有限公司 一种用于真空开关管的焊接装置

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JP4818530B2 (ja) † 2001-04-19 2011-11-16 三菱電機株式会社 真空バルブ
NL1019651C2 (nl) * 2001-12-21 2003-06-24 Holec Holland Nv Soldeerring voor vervaardigen van vacuümbuis, en werkwijze voor het vervaardigen van een dergelijke soldeerring en van een vacuümbuis.
JP2003245792A (ja) * 2002-02-21 2003-09-02 Sumitomo Electric Ind Ltd 接続構造
DE10252577B4 (de) * 2002-11-12 2008-08-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zum Erzeugen einer Lotverbindung durch kapillaren Lotfluß
WO2006032522A1 (fr) * 2004-09-25 2006-03-30 Abb Technology Ag Procede de production d'un revetement resistant a l'usure et blindage correspondant pour interrupteurs a vide
DE102005003812A1 (de) * 2005-01-27 2006-10-05 Abb Technology Ag Verfahren zur Herstellung eines Kontaktstückes, sowie Kontaktstück für eine Vakuumschaltkammer selbst
DE102005043484B4 (de) * 2005-09-13 2007-09-20 Abb Technology Ag Vakuumschaltkammer
RU2313846C2 (ru) * 2006-02-21 2007-12-27 ГОУ ВПО Пензенская государственная технологическая академия Способ контроля контактного нажатия в вакуумных выключателях
CN104701068B (zh) * 2015-03-12 2015-12-02 西安交通大学 一种新型真空灭弧室横向磁场触头
DE102015105069B4 (de) 2015-04-01 2022-04-28 Karl Storz Se & Co. Kg Verfahren zum Verbinden mindestens zweier Bauteile eines Endoskops
CN105448587B (zh) * 2015-12-04 2018-07-20 天津平高智能电气有限公司 一种灭弧室及其纵磁触头装置
CN105448585B (zh) * 2015-12-04 2019-02-01 天津平高智能电气有限公司 一种灭弧室的触头组件及使用该触头组件的灭弧室
CN119650335B (zh) * 2024-11-08 2025-10-28 佛山市诺普材料科技有限公司 一种电触头加工用的纳米银膜及制备方法与应用

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GB415221A (en) * 1933-03-25 1934-08-23 Clements Albert Laise Improvements in or relating to methods of uniting metal articles by fusion and resulting products such as electric contact assemblies
US3055098A (en) * 1956-10-22 1962-09-25 Westinghouse Electric Corp Brazing dissimilar metals
DE1127180B (de) * 1960-02-02 1962-04-05 Siemens Ag Verfahren zum Hartloeten von vorzugsweise gesinterten Kontaktplaettchen mit seinem Traeger
US3191274A (en) * 1961-02-20 1965-06-29 Talon Inc Method of making an electrical contact
SE303417B (fr) * 1967-11-27 1968-08-26 Fagersta Bruks Ab
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DE3703326A1 (de) * 1987-02-04 1988-08-18 Siemens Ag Vakuumschaltroehre
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DE19534398A1 (de) * 1995-09-16 1997-03-20 Abb Patent Gmbh Kontaktanordnung für eine Vakuumschaltkammer
US5816868A (en) * 1996-02-12 1998-10-06 Zierick Manufacturing Corp. Capillary action promoting surface mount connectors
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012098003A1 (fr) * 2011-01-21 2012-07-26 Abb Technology Ag Procédé de fabrication d'un soufflet en accordéon ou à membrane ainsi que soufflet en accordéon ou à membrane utilisé dans la technologie moyenne tension
WO2022069263A1 (fr) * 2020-09-30 2022-04-07 Siemens Aktiengesellschaft Contact pour interrupteur à vide, et procédé de production dudit contact
CN117548886A (zh) * 2024-01-11 2024-02-13 武汉飞特电气有限公司 一种用于真空开关管的焊接装置
CN117548886B (zh) * 2024-01-11 2024-04-23 武汉飞特电气有限公司 一种用于真空开关管的焊接装置

Also Published As

Publication number Publication date
ATE313852T1 (de) 2006-01-15
EP1022760B1 (fr) 2005-12-21
US6574864B1 (en) 2003-06-10
DE19902500A1 (de) 2000-08-17
DE19902500B4 (de) 2004-07-22
ES2255470T3 (es) 2006-07-01
EP1022760A3 (fr) 2001-05-02
DE50011875D1 (de) 2006-01-26

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