EP1554741B1 - Boitier en materiau isolant presentant un profil interieur rainure - Google Patents

Boitier en materiau isolant presentant un profil interieur rainure Download PDF

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Publication number
EP1554741B1
EP1554741B1 EP03757700A EP03757700A EP1554741B1 EP 1554741 B1 EP1554741 B1 EP 1554741B1 EP 03757700 A EP03757700 A EP 03757700A EP 03757700 A EP03757700 A EP 03757700A EP 1554741 B1 EP1554741 B1 EP 1554741B1
Authority
EP
European Patent Office
Prior art keywords
ribs
casing
longitudinal
rib
sectional
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 - Lifetime
Application number
EP03757700A
Other languages
German (de)
English (en)
Other versions
EP1554741A1 (fr
Inventor
Uwe Hering
Ralf-Reiner Volkmar
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
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP1554741A1 publication Critical patent/EP1554741A1/fr
Application granted granted Critical
Publication of EP1554741B1 publication Critical patent/EP1554741B1/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
    • H01H33/662—Housings or protective screens
    • H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5822—Flexible connections between movable contact and terminal
    • 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
    • H01H33/6606—Terminal arrangements
    • 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
    • H01H2033/6623—Details relating to the encasing or the outside layers of the vacuum switch housings

Definitions

  • the invention relates to an insulating material housing for receiving and isolating dozenssbeetzter components in a one-piece and rigid sheath which extends circumferentially closed in a cross-sectional view and is interrupted by at least one passage opening for receiving a voltage-loadable connection part, wherein on the inside of the casing ribs to increase the tracking resistance are formed.
  • Such an insulating material housing is known from US 5,736,705. Therefore, it is an insulating housing for receiving and isolating dozenssbeaufschlagter components in a tubular one-piece and rigid sheath.
  • the insulating housing disclosed therein is made of cast resin, wherein in a cross-sectional view circumferentially closed extending sheath is pierced by a through hole for receiving a voltage applied to the connector part.
  • circumferential ribs are formed to increase the overall length of the inner wall of the casing and thus to increase the tracking resistance.
  • an insulating housing from DE 197 12 182 A1 is known.
  • the insulating housing disclosed therein is made of cast resin and provided for receiving and insulating a vacuum circuit breaker, which is arranged inside a tubular sheath.
  • the casing projects beyond the vacuum circuit breaker with a hollow-cylindrical collar section, in the side wall of which a passage opening for receiving a connection part is provided is.
  • the connector allows for easy contacting of the vacuum circuit breaker with conductors.
  • the collar section has, between its passage opening and a housing opening facing away from the vacuum circuit breaker, closed ribs running around it, which ribs are formed on the outside of the collar section.
  • the prior art insulating material adheres to the disadvantage that the ribs do not increase the tracking resistance. Rather, a leakage current may flow along the inside of the sheath without detours over the outer fins to ground potential components.
  • the tracking resistance is thus determined by the length of the collar portion. In order to meet the requirements of the creep resistance, the collar portion is therefore designed to be correspondingly long. However, this leads to a bulky design, which is usually undesirable.
  • DE 35 38 955 A1 discloses a Isolierstoffgeophuse a gas pressure switch, in which a tubular casing delimits a gas space to extinguish a drawn between two switching contacts arc.
  • the tubular casing is provided with inner and outer grooves, in the crossing points through openings for the quenching gas arise.
  • the inner and outer grooves serve for mechanical stabilization of the sheathing.
  • DE 39 23 205 discloses an electrical connection box with flat areas in which passage openings and ribbed arches can be seen, enclose the passage openings of several pages.
  • DE 31 45 391 C2 discloses a compressed gas switch with an insulating body, which is provided with circumferential gas guiding chambers and extending in the longitudinal direction lamellae.
  • the object of the invention is to provide an insulating material of the type mentioned above, which has a compact design and is simple and therefore inexpensive to manufacture.
  • the ribs are formed as ribbed arcs, each having longitudinal ribs extending in a longitudinal direction of the casing, which transition into at least one perpendicular thereto and in the transverse direction of the casing transverse rib and thereby enclose each through hole each of a plurality of sides ,
  • the inventively designed ribbed arches are particularly easy to produce, whereby the cost of the insulating material can be reduced.
  • each passage opening is bounded on several sides by rib arcs, the leakage current is forced to flow over a region profiled by the ribs, wherein the creepage distance is increased according to the invention. It is by no means necessary for the ribbed curves to be closed, running around the passage opening.
  • the ribbed arches can limit the passage opening only from three sides. In this case, however, it must be ensured that the path which the leakage current would have to take in order to bypass the ribbed arcs is greater than the direct path to a component with different electrical potential.
  • the direct way could also be called as the crow flies.
  • the ribbed arches have rib portions which span angles to each other which are respectively between 0 and 180 degrees, for example between 60 and 120 degrees, or preferably at 90 degrees.
  • the sheath according to the invention consists of a dimensionally stable or rigid material. This excludes materials that give the sheath such elasticity that it could be deducted from an inner mandrel after or during its completion under material expansion. Suitable materials for the dimensionally stable Isolierstoffgeophuse come epoxy resins such as cast resin or other thermosets or thermoplastics into consideration.
  • the transverse ribs in a cross-sectional view of the sheath are circumferentially not closed.
  • a one-piece mandrel used to form the inner ribs can therefore be easily removed in the manufacture after solidification of the insulating material.
  • the longitudinal ribs each have such a longitudinal rib height that in a cross-sectional view of the casing, the longitudinal ribs and the transverse ribs abut against a common surface contour.
  • the longitudinal ribs and the transverse ribs together define a cavity through which electrical components can be introduced into or removed from the insulating material housing.
  • the longitudinal ribs and the transverse ribs are thus arranged quasi aligned with each other and lie together on the contour of the usable cavity.
  • the creepage distance in the longitudinal and in the transverse direction is optimized for a usable cavity, since ribs with a lower rib height than for introducing the previously defined component are necessarily avoided.
  • the common surface contour is a circular contour. This allows, for example, the insertion or execution of a cylindrical vacuum switch in the insulating material.
  • FIG. 1 shows an embodiment of the insulating material according to the invention 1 in a longitudinally sectioned view.
  • the insulating housing 1 has a sheath 2 made of cast resin, as well as outer ribs 3 and inner ribs 4, which are each formed on the casing 2.
  • the insulating housing is thus integrally formed.
  • a cylindrical vacuum circuit breaker 5 can be seen, wherein between the casing 2 and the vacuum power peeler 5 elastic material to compensate for temperature-dependent volume fluctuations of the vacuum circuit breaker 5 are provided during operation.
  • the vacuum circuit breaker 5 has in its interior a fixed contact and a related movable guided moving contact.
  • Figure 1 only the free end of a permanently connected to the moving contact switching rod 7 can be seen, via which a drive movement of a drive unit, not shown, is introduced into the moving contact.
  • transmission means such as levers, rods and the like are provided in Figure 1 for reasons of clarity.
  • a flexurally elastic band conductor 8 is provided, which on the linearly movably guided shift rod 7 on the one hand and on the other hand on a fixed connection part 9 is fixed.
  • the connection part 9 is arranged in a passage opening 10 of the casing 2 and has a threaded connection opening 11, by means of which the attachment of a connection conductor, not shown, is made possible.
  • the insulating housing is tubular or hollow-cylindrical, wherein the inner ribs 4 have longitudinal ribs 12 extending in the longitudinal direction of the casing 2 and transverse ribs 13 extending at right angles thereto, wherein the longitudinal ribs 12 at transition points 14 into the transverse ribs 13 pass.
  • ribbed arches are formed, which surrounds the passage opening 10 from three sides. A potential leakage current from the connecting part 9 on its way to the free opening 15 of the casing 2 is thus forced to flow over the ribbed arches.
  • a creepage along the first longitudinal rib 12 which is closest to the through-hole 10, then laterally past the other two longitudinal ribs 12, and finally over the non-profiled or rib-free region to the free opening 15, would be longer than the direct path from the connector 9
  • the creeping resistance thus remains determined by the profiling depth of the inner ribs 4 and the outer ribs 3, respectively.
  • FIG. 2 shows the circuit breaker according to FIG. 1 in a cross-sectional view cut along the line II.
  • the individual longitudinal ribs 12 have different rib heights, so that they rest in this cross-sectional view with the transverse ribs 13 on a common surface contour, which here is a pitch circle.
  • the longitudinal ribs 12 are arranged in alignment with the transverse ribs 13.
  • the limited by the longitudinal ribs 12 and the transverse ribs 13 pitch circle is a semicircle which is complementary to a semicircle which is bounded by the inner surface of the casing 2. Both semicircles form the total circle 16 indicated in FIG.
  • the total circle 16 represents the cross-sectional area of a cavity, which is cylindrical and whose radial diameter is greater than the outer diameter of the vacuum circuit breaker 5, so that the exchange of the vacuum circuit breaker 5 even after commissioning without destroying the casing 2 or the insulating housing 1 is made possible.
  • the leakage current was thus optimized for a given cavity.
  • Figure 3 shows a further longitudinal sectional view of the insulating material according to Figure 1, in which once again the multi-sided boundary of the passage opening 10 through the ribbed arches is thus illustrated by the longitudinal ribs 12 and the transverse ribs 13.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Insulating Bodies (AREA)
  • Insulators (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

L'invention vise à mettre en oeuvre un boîtier en matériau isolant (1) destiné à recevoir et à isoler des composants sous tension dans une enveloppe (2) monopièce rigide, constituant un cercle fermé en vue transversale, et comportant au moins une ouverture traversante (10) destinée à recevoir un élément de connexion pouvant être mis sous tension (9), des rainures (12, 13) étant formées sur l'enveloppe (2) de manière à augmenter la résistance au courant de fuite. A cet effet, les rainures sont formées à l'intérieur de l'enveloppe et/ou forment des arcs de rainure (12, 13) entourant chaque ouverture de passage (9) sur plusieurs côtés.

Claims (4)

  1. Boîtier en matériau isolant (1) pour recevoir et isoler des composants (5) sous tension dans une enveloppe (2) tubulaire, indéformable et en une seule pièce, qui a une étendue périphérique fermée dans une vue en coupe transversale et qui est interrompue par au moins une ouverture de passage (10) destinée à recevoir une pièce de raccordement (9) susceptible d'être mise sous tension, des nervures (12, 13) étant façonnées à l'intérieur de l'enveloppe (2) afin d'augmenter la résistance aux courants de fuite,
    caractérisé en ce que les nervures (12, 13) se présentent comme des arcs nervurés dont chacun comporte des nervures longitudinales (12) qui s'étendent en direction longitudinale de l'enveloppe (2) et se transforment en au moins une nervure transversale (13), celle-ci s'étendant perpendiculairement à elles et dans la direction transversale de l'enveloppe, et qui entourent chaque ouverture de passage (10) de plusieurs côtés.
  2. Boîtier en matériau isolant selon la revendication 1, caractérisé en ce que chaque nervure transversale (13) a une étendue périphérique non fermée (2) dans une vue en coupe transversale de l'enveloppe.
  3. Boîtier en matériau isolant selon la revendication 1 ou 2, caractérisé en ce que chacune des nervures longitudinales (12) a une hauteur telle que, dans une vue en coupe transversale de l'enveloppe (2), les nervures longitudinales (12) et les nervures transversales (13) se trouvent sur un contour de surface (16) commun.
  4. Boîtier en matériau isolant selon la revendication 3, caractérisé en ce que le contour de surface commun est une partie de cercle (16).
EP03757700A 2002-10-21 2003-10-06 Boitier en materiau isolant presentant un profil interieur rainure Expired - Lifetime EP1554741B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10249614A DE10249614B3 (de) 2002-10-21 2002-10-21 Isolierstoffgehäuse mit Rippenkontur
DE10249614 2002-10-21
PCT/DE2003/003343 WO2004040609A1 (fr) 2002-10-21 2003-10-06 Boitier en materiau isolant presentant un profil interieur rainure

Publications (2)

Publication Number Publication Date
EP1554741A1 EP1554741A1 (fr) 2005-07-20
EP1554741B1 true EP1554741B1 (fr) 2006-08-23

Family

ID=32114851

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03757700A Expired - Lifetime EP1554741B1 (fr) 2002-10-21 2003-10-06 Boitier en materiau isolant presentant un profil interieur rainure

Country Status (5)

Country Link
EP (1) EP1554741B1 (fr)
CN (1) CN1328741C (fr)
DE (1) DE10249614B3 (fr)
HK (1) HK1083565A1 (fr)
WO (1) WO2004040609A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004047276B4 (de) * 2004-09-24 2006-11-30 Siemens Ag Selbsthaftende Elastomerschicht in feststoffisolierten Schalterpolen
DE102007007695A1 (de) * 2007-02-09 2008-08-14 Siemens Ag Isolierstoff-Gussgehäuse, Verfahren zu seiner Herstellung, Schaltervorrichtung und Verfahren zu deren Herstellung
DE102009020152B3 (de) * 2009-05-06 2010-12-23 Siemens Aktiengesellschaft Isolierstoffgehäuse zur Aufnahme einer Vakuumschaltröhre und feststoffisolierter Schalterpol
CN103681095B (zh) * 2013-12-31 2016-05-04 辽宁易德电气有限公司 户外高压固封极柱真空断路器或重合器

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4060785A (en) * 1976-09-13 1977-11-29 Kearney-National Inc. Enclosing structure for a high voltage electric fuse
DE3145391C2 (de) * 1981-11-12 1984-10-11 Siemens AG, 1000 Berlin und 8000 München Druckgasschalter
DE8531024U1 (de) * 1985-10-29 1988-12-01 Siemens AG, 1000 Berlin und 8000 München Druckgasschalter
DE3712226A1 (de) * 1987-04-10 1988-10-27 Danfoss As Elektrische maschine mit einem eine wicklung tragenden blechpaket und verfahren zu ihrer herstellung
JPH0615457Y2 (ja) * 1988-07-15 1994-04-20 矢崎総業株式会社 電気接続箱
DE9017054U1 (de) * 1990-12-18 1991-03-07 ABB Patent GmbH, 6800 Mannheim Schalterpolanordnung
DE19503347A1 (de) * 1995-02-02 1996-08-08 Abb Patent Gmbh Die Kontaktstelle eines Vakuumschalters umgebendes Abschirmelement
US5736705A (en) * 1996-09-13 1998-04-07 Cooper Industries, Inc. Grading ring insert assembly
DE19712182A1 (de) * 1997-03-22 1998-09-24 Abb Patent Gmbh Vakuumkammer
JPH10321096A (ja) * 1997-05-23 1998-12-04 Mitsubishi Electric Corp 開閉器

Also Published As

Publication number Publication date
HK1083565A1 (en) 2006-07-07
CN1706016A (zh) 2005-12-07
EP1554741A1 (fr) 2005-07-20
WO2004040609A1 (fr) 2004-05-13
CN1328741C (zh) 2007-07-25
DE10249614B3 (de) 2004-05-19

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