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WO2010015604A1 - Tube interrupteur à vide - Google Patents

Tube interrupteur à vide Download PDF

Info

Publication number
WO2010015604A1
WO2010015604A1 PCT/EP2009/060042 EP2009060042W WO2010015604A1 WO 2010015604 A1 WO2010015604 A1 WO 2010015604A1 EP 2009060042 W EP2009060042 W EP 2009060042W WO 2010015604 A1 WO2010015604 A1 WO 2010015604A1
Authority
WO
WIPO (PCT)
Prior art keywords
flange
screen
housing part
vacuum interrupter
housing
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.)
Ceased
Application number
PCT/EP2009/060042
Other languages
German (de)
English (en)
Inventor
Rolf-Peter Gust
Klaus Oberndörfer
Klaus Petznick
Michael Westerkowski
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of WO2010015604A1 publication Critical patent/WO2010015604A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • H01H33/662—Housings or protective screens
    • H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
    • 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
    • H01H33/662—Housings or protective screens
    • H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
    • H01H2033/66215—Details relating to the soldering or brazing of vacuum switch housings
    • 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
    • H01H33/662—Housings or protective screens
    • H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
    • H01H2033/66276—Details relating to the mounting of screens in vacuum switches
    • 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
    • H01H33/662—Housings or protective screens
    • H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
    • H01H2033/66284—Details relating to the electrical field properties of screens in vacuum switches
    • 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
    • H01H33/662—Housings or protective screens
    • H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing

Definitions

  • the invention relates to a vacuum interrupter with a first housing part and a second housing part having tubular housing and a vapor shield for protecting inner surfaces of the tubular housing, the vapor shield having a first screen portion, at one end of a first radially extending flange is disposed, and the vapor shield a second screen part, at one end of a second radially extending flange is arranged.
  • German Patent DE 38 06 921 C2 discloses a vacuum interrupter with a two-part vapor shield.
  • the steam shield consists of two bell-shaped parts, whose flared ends are inserted into each other.
  • the outer end with a larger diameter encompasses the inner end. From the outer end, tabs that have been worked out by means of separating cuts are displayed, which center the steam shield in the tube housing.
  • a vacuum interrupter of the type mentioned is known from German patent application DE 195 17 288 Al.
  • holes are distributed in the one flange on the circumference, while the other flange circumferentially distributed, punched tabs, which engage in the holes of the other flange.
  • the tabs rest on the inside of the housing parts of the tubular housing. In this way, the housing parts and the screen parts are centered to each other.
  • this vacuum interrupter are in particular at the punched tabs and on the resulting from the punching of the tabs recesses sharp edges before, which in the electric Field can lead to unwanted field increases and breakdowns.
  • the invention has for its object to provide a vacuum tube in which the screen parts are aligned in a different way to each other.
  • an end face of the first flange has a rotationally symmetrical step which engages around the second flange (for aligning or centering the two shield parts relative to one another), and the first flange is free of openings.
  • the first flange is free of openings.
  • no holes, tabs or the like are arranged in the first flange, so that sharp-edged or punctiform protruding elements are avoided, where undesirable increases in field strength can occur.
  • the encompassing step ensures a reliable centering (ie coaxial alignment) of the two screen parts to one another.
  • the design of the first flange as a break-free flange is effectively avoided an undesirable field strength increase due to sharp edges or ridges and on the other hand increases the stability of the flange.
  • the vacuum interrupter can be designed so that the inner circumferential surface of the rotationally symmetrical stage rests against the outer circumferential surface of the narrow side of the second flange. As a result, the rotationally symmetrical stage (eg during assembly of the vacuum interrupter) holds the second flange in the intended position.
  • the vacuum interrupter can be designed so that the second flange is free of openings.
  • the second flange as a break-through-free flange (i.e., flange without holes, punched holes or other openings) is on the one hand effectively avoided unwanted field strength increase due to sharp edges or burrs and on the other hand increases the stability of the flange.
  • the vacuum interrupter may be constructed such that the thickness of the second flange is less than or equal to the height of the step. This makes it possible that the second flange is completely encompassed by the stage, so that a particularly good centering of the screen parts is made possible to each other. Furthermore, this ensures that the second flange does not protrude beyond the step of the first flange, so that a surface connection of both sides of the first flange is made possible in each case with a housing part.
  • the vacuum interrupter can also be configured such that the first screen part has radially outwardly directed bulges, which bear against the inner surface of the first housing part and / or the second screen part has radially outwardly directed bulges, which bear against the inner surface of the second housing part.
  • the bulges of the first screen part allow a centering or alignment of the first screen part with respect to the first housing part.
  • the bulges of the second screen part allow a centering or alignment of the second screen part with respect to the second housing part.
  • the vacuum interrupter can be constructed such that the bulges of the first screen part and / or the bulges of the second screen part have round contours.
  • sharp edges or pointed or punctiform elevations are advantageously avoided on the screen parts, so that thereby field strength peaks, which can lead to unwanted flashovers are avoided.
  • the vacuum interrupter can be realized in such a way that the first flange is connected to the first housing part as well as to the second housing part in a vacuum-tight manner, in particular vacuum-soldered.
  • a particularly reliable vacuum-tight connection between the first housing part and the second housing part is advantageously produced because the first housing part is directly connected to the first flange and this first flange again directly to the second housing part vacuum-tight.
  • only two connection points are necessary for the vacuum-tight connection of the two housing parts with each other. This results in a higher reliability of the connection than, for example, three or more connection points.
  • the vacuum interrupter can be constructed such that the first shield part and / or the second shield part consist of metal, in particular of copper or stainless steel (for example of a Cr-Ni steel).
  • the use of metal in particular of copper or stainless steel (for example of a Cr-Ni steel).
  • Stainless steel is advantageous because of the lower price and / or lighter weight of stainless steel over copper.
  • FIG. 1 shows a partial sectional view of a vacuum interrupter
  • Figure 2 shows an enlarged detail of Figure 1 shown.
  • a vacuum interrupter is shown in a partial sectional view.
  • a tube housing of this vacuum interrupter has a first housing part 1 and a second housing part 3.
  • the first housing part 1 and the second housing part 3 are each realized as a ceramic hollow cylinder.
  • the first housing part 1 and the second housing part 3 enclose a contact system of the vacuum interrupter, which consists of a fixed contact and a moving contact.
  • the fixed contact has a fixed contact piece 5, which is connected by means of a fixed (fixed) contact pin 9 with a housing cap 11.
  • the housing cap is vacuum-tightly connected to the first housing part 1, soldered in the exemplary embodiment.
  • the moving contact has a movable contact piece 7, which is supported by an axially movable contact pin 13.
  • the axially movable contact pin 13 is axially slidably guided in a sliding bearing 15.
  • the sliding bearing 15 is arranged on a second housing cap 17.
  • This second housing cap 17 is on the one hand vacuum-tight connected to the second housing part 3;
  • the second housing cap 17 is vacuum-tightly connected to a bellows 19.
  • the bellows 19 is also vacuum-tightly connected to the movable contact pin 13.
  • the bellows 13 allows the axial displacement of the movable contact pin 13.
  • the vacuum-tight connections are designed as solder joints.
  • a vapor shield is arranged, which has a first screen part 21 and a second screen part 23.
  • the first screen part 21 and the second screen part 23 are fastened between the mutually facing end faces of the first housing part 1 and the second housing part 3.
  • the vapor shield serves to protect inner surfaces of the first housing part 1 and of the second housing part 3 from metal vapor deposits that occur during switching operations: the first screen part 21 shields the inner surface of the first housing part 1, the second screen part 23 shields the inner surface of the second housing part 3.
  • the vacuum interrupter has a third screen part 25 and a fourth screen part 27, which in particular shield the part facing away from the contact system end of the first housing part 1 and the second housing part 3 from metal vapor.
  • FIG. 2 a detail of FIG. 1 is shown enlarged in a sectional view. It is in particular illustrated how the first screen part 21 and the second screen part 23 with the first housing part 1 and the second housing part 3 are connected.
  • the first screen part 21 is substantially rotationally symmetrical and has a substantially sleeve-like shape. At one end of the first
  • a first flange 201 is arranged, which projects radially from the sleeve-shaped portion of the first screen member 21.
  • This first flange 201 has a rotationally symmetrical step 203 on its end-side end face.
  • the first flange 201 is vacuum-tightly connected, for example soldered, both to the first housing part 1 and to the second housing part 3.
  • the second screen part 23 likewise has a substantially sleeve-like shape, at the end of the second screen part 23 facing the first screen part 21 a second flange 205 projecting in the radial direction is arranged.
  • the second flange 205 is encompassed by the step 203 of the first flange 201, thereby centering the first screen member 21 and the second screen member 23; d. H. the first screen part 21 and the second screen part 23 are aligned so as to be coaxially arranged.
  • the first flange 201 has an annular recess (eg, a recess) bounded by the step 203, in which the second flange 205 engages.)
  • the inner circumferential surface 207 of the rotationally symmetrical step 203 lies on the outer circumferential surface 209 of the narrow side of the second flange 205 at.
  • the step 203 may be made, for example, by turning off an inner annular portion of the flange plate in the first flange 201.
  • the step 203 can also be produced during a deep-drawing process by a corresponding configuration of the deep-drawing mold. Except for the design of the first The first screen part 21 and the second screen part 23 are configured substantially identically.
  • the facing on the first flange 201 end face of the second flange 205 is at least partially connected to the end face of the first flange 201, for example, soldered.
  • the thickness of the second flange 205 is generally smaller (or equal) to the height of the step 203; In the exemplary embodiment, the thickness of the second flange 205 is slightly smaller than the height of the step 203. This ensures that the second flange 205 is completely encompassed by the step 203 and the second flange 205 does not project beyond the step 203 in the axial direction.
  • first flange 201 and the second housing part 3 (more precisely, between the step 203 of the first flange 201 and the second housing part 3) can be produced, for example by soldering.
  • first screen part 21 and the second screen part 23 in particular no additional retaining ring (center ring) is necessary.
  • the first flange 201 and / or the second flange 205 are made of solid screen material and are break-through-free, d. H. they have no holes, punched or the like.
  • the first screen part 21 has radially outwardly directed bulges (eg knobs) 211, which bear against the inner surface (inner circumferential surface) of the first hollow cylindrical housing part 1.
  • the second screen member 23 radially outwardly directed bulges 213 (eg knobs), which bear against the inner surface (inner circumferential surface) of the second hollow cylindrical housing part 3.
  • the first for example, the shade member 21 carries six bulges 211 uniformly distributed around the circumference, and the second shade member 23 has, for example, six bulges 213 uniformly distributed around the circumference.
  • the bulges 211 and 213 each have round contours, thereby sharp-edged projections or tips are avoided, so that increases in the electric field strength can be effectively prevented.
  • FIG. 2 shows a gap between the bulge and the housing part in order to clearly show that, for example, the second housing part 3 and the second screen part 23 are separate components.
  • This gap serves to take account of the different degrees of thermal expansions of the housing part made of ceramic and the shielding part consisting of metal.
  • the first screen part and the second screen part are made of metal, for example copper or stainless steel.
  • the material thickness (material thickness) of the first screen part 21 and the second screen part 23 is 1 mm in the exemplary embodiment. In general, this material thickness can advantageously be between 0.9 mm and 2.1 mm. It has been found that with such material thicknesses there is advantageously an optimum between the opposing demands for good heat dissipation capability of the screen on the one hand and low material consumption combined with a low weight on the other hand.
  • the first housing part 1 When assembling the vacuum interrupter first the first housing part 1 is brought into the position shown in Figure 2.
  • the metallized end face of the first housing part 1 is covered with an annular solder foil, wherein the width of this solder foil corresponds approximately to the width of the horizontally extending end face of the first housing part 1.
  • the first flange 201 of the first screen part 21 is then placed on the solder foil.
  • the bulge 211 serves to center the first screen part 21 within the first housing part 1.
  • the second flange 205 of the second screen part 23 is inserted into the recess 203 surrounded by the first flange 201, so that the step 203, the second flange 205th embraces.
  • the second screen member 23 is centered with respect to the first screen member 21, that is aligned coaxially.
  • another Lötfolienring is placed on the side facing away from the first housing part 1 side of the first flange 201 and on the side facing away from the first housing part 1 side of the second flange 205, whose width corresponds approximately to the width of the horizontally extending end face of the second insulating part 3 .
  • the second insulating part 3 is placed on the first flange 201 and the second flange 205.
  • the bulge 213 serves as a centering aid.
  • the vacuum interrupter is soldered after assembly of the contact pin fixed to the fixed contact piece 5 and the movable BewegCount institutions 7 and the other parts in Vakuumlötofen.
  • the first housing part is permanently connected to the first flange 201; the second housing part 3 is permanently connected to the first flange 201.
  • a vacuum interrupter which has a two-screen center screen as a vapor screen.
  • Each of these screen parts each has a radially projecting flange; both flanges are permanently soldered between the first housing part and the second housing part.
  • the first flange has a step which engages around the second flange, thereby forming the flanges or the associated screen parts centered to each other during assembly. Due to the formation of the first flange with a step, only two soldering surfaces occur during the vacuum-tight connection of the first housing part to the second housing part.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Abstract

La présente invention concerne un tube interrupteur à vide comprenant un boîtier de tube qui présente une première partie boîtier (1) et une deuxième partie boîtier (3), et un écran anti-vapeur destiné à protéger les surfaces intérieures du boîtier de tube. Selon l'invention, l'écran anti-vapeur présente une première partie de protection (21) à une extrémité de laquelle est formée une première bride (201) s'étendant radialement. L'écran anti-vapeur présente également une deuxième partie de protection (23) à une extrémité de laquelle est formée une deuxième bride (205) s'étendant radialement. Une face de la première bride (201) présente une section (23) à symétrie de rotation qui entoure la deuxième bride (205), et la première bride (201) est exempte de toute perforation.
PCT/EP2009/060042 2008-08-07 2009-08-03 Tube interrupteur à vide Ceased WO2010015604A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008037112.2 2008-08-07
DE200810037112 DE102008037112B4 (de) 2008-08-07 2008-08-07 Vakuumschaltröhre

Publications (1)

Publication Number Publication Date
WO2010015604A1 true WO2010015604A1 (fr) 2010-02-11

Family

ID=41066470

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/060042 Ceased WO2010015604A1 (fr) 2008-08-07 2009-08-03 Tube interrupteur à vide

Country Status (2)

Country Link
DE (1) DE102008037112B4 (fr)
WO (1) WO2010015604A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012042294A1 (fr) * 2010-10-01 2012-04-05 Abb Technology Ltd Interrupteur à vide compact à encapsulation sélective

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3514559A (en) * 1967-03-27 1970-05-26 Mc Graw Edison Co Vacuum type circuit interrupter
SU610205A1 (ru) * 1975-07-24 1978-05-05 Предприятие П/Я Р-6517 Вакуумна дугогасительна камера
US4127755A (en) * 1975-08-05 1978-11-28 Siemens Aktiengesellschaft Vacuum switch tube
DE3344643A1 (de) * 1983-12-09 1985-06-20 Siemens AG, 1000 Berlin und 8000 München Vakuumschaltroehre fuer mittelspannungsschaltgeraete
DE3806921A1 (de) * 1988-03-03 1989-09-14 Calor Emag Elektrizitaets Ag Vakuumschalterkammer
DE19517288A1 (de) * 1995-05-11 1996-11-14 Abb Patent Gmbh Vakuumschaltröhre
DE19910119A1 (de) * 1999-03-08 2000-09-14 Abb Patent Gmbh Vakuumkammer

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19625737B4 (de) * 1995-07-25 2007-05-03 Abb Patent Gmbh Vakuumschaltkammer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3514559A (en) * 1967-03-27 1970-05-26 Mc Graw Edison Co Vacuum type circuit interrupter
SU610205A1 (ru) * 1975-07-24 1978-05-05 Предприятие П/Я Р-6517 Вакуумна дугогасительна камера
US4127755A (en) * 1975-08-05 1978-11-28 Siemens Aktiengesellschaft Vacuum switch tube
DE3344643A1 (de) * 1983-12-09 1985-06-20 Siemens AG, 1000 Berlin und 8000 München Vakuumschaltroehre fuer mittelspannungsschaltgeraete
DE3806921A1 (de) * 1988-03-03 1989-09-14 Calor Emag Elektrizitaets Ag Vakuumschalterkammer
DE19517288A1 (de) * 1995-05-11 1996-11-14 Abb Patent Gmbh Vakuumschaltröhre
DE19910119A1 (de) * 1999-03-08 2000-09-14 Abb Patent Gmbh Vakuumkammer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012042294A1 (fr) * 2010-10-01 2012-04-05 Abb Technology Ltd Interrupteur à vide compact à encapsulation sélective
CN103329233A (zh) * 2010-10-01 2013-09-25 Abb技术有限公司 具有选择性封装的紧凑型真空断续器
JP2014510989A (ja) * 2010-10-01 2014-05-01 アーべーべー・テヒノロギー・リミテッド 選択的カプセル封じを含むコンパクトな真空遮断器
RU2543984C2 (ru) * 2010-10-01 2015-03-10 Абб Текнолоджи Лтд Компактный вакуумный прерыватель с избирательным инкапсулированием
US9214292B2 (en) 2010-10-01 2015-12-15 Abb Technology Ltd Compact vacuum interrupter with selective encapsulation
CN103329233B (zh) * 2010-10-01 2016-01-27 Abb技术有限公司 真空断续器和改进真空断续器的电压耐受性的方法

Also Published As

Publication number Publication date
DE102008037112A1 (de) 2010-02-18
DE102008037112B4 (de) 2010-07-08

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