EP0309384B1 - Dispositif interrupteur multipolaire basse tension avec un boîtier isolant sous-divisé en chambres parallèles - Google Patents

Dispositif interrupteur multipolaire basse tension avec un boîtier isolant sous-divisé en chambres parallèles Download PDF

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Publication number
EP0309384B1
EP0309384B1 EP88730204A EP88730204A EP0309384B1 EP 0309384 B1 EP0309384 B1 EP 0309384B1 EP 88730204 A EP88730204 A EP 88730204A EP 88730204 A EP88730204 A EP 88730204A EP 0309384 B1 EP0309384 B1 EP 0309384B1
Authority
EP
European Patent Office
Prior art keywords
chambers
parts
separating wall
insulating material
individual parts
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
EP88730204A
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German (de)
English (en)
Other versions
EP0309384A1 (fr
Inventor
Martin Dipl.-Ing. Böttcher
Karl-Heinz Dipl.-Ing. Manthe
Bernhard Dr.-Ing. Pfeiffer
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 EP0309384A1 publication Critical patent/EP0309384A1/fr
Application granted granted Critical
Publication of EP0309384B1 publication Critical patent/EP0309384B1/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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H71/0214—Housing or casing lateral walls containing guiding grooves or special mounting facilities

Definitions

  • the invention relates to a multi-pole low-voltage switchgear with an insulating material housing divided by partitions into parallel chambers and connecting devices arranged in the chambers, and current paths having fixed and movable contacts and switching chambers, the partitions being designed as partitions at least over part of their length and height and the insulating material housing and the dividing wall individual parts are provided with interlocking recesses or projections, and furthermore the dividing wall individual parts are designed as carriers of components or internal accessories.
  • a switching device of this type is known from US-A-3 421 129.
  • the interior of the switchgear is continuously delimited by external walls and is divided by the partition walls when installing the contact systems and accessories. This means that the interior of the switching device is only accessible from one side. Proceeding from this, the object of the invention is to further facilitate the assembly of the components of the switching device.
  • each partition wall part is integrally formed with at least one transverse end part closing one of the chambers, that one of the partition wall parts is designed as a T-shaped part for the end closure of two adjacent chambers and that Individual partition parts from an end face of the insulating material housing having connection parts to the arc extinguishing devices adjoining the end face having the other connection spaces opposite containing interrupters. This ensures that the housing is accessible not only from above, but also from one end when the switching device is installed.
  • the design of the individual partition parts enables the manufacture of either three-pole or four-pole switchgear. This is done in that in addition to the T-shaped dividing wall part, one or two dividing wall parts provided with only one cross-section that terminates at the end are used.
  • FIG. 1 shows the bottom part of an insulating material housing of a low-voltage circuit breaker in a top view.
  • FIG. 2 shows a T-shaped partition part for use in the insulating material housing according to FIG. 1.
  • An L-shaped partition part according to FIG. 3 is also provided for insertion into the insulating material housing according to FIG. 1.
  • FIG. 4 shows a section through a low-voltage circuit breaker.
  • the lower housing part 1 is part of the insulating material housing of a low-voltage circuit breaker and can be covered at the top, for example, by an upper housing part, as is shown in GB-A-1 244 890.
  • the lower housing part 1 there are a total of four rooms or chambers 2, 3, 4 and 5 arranged in parallel, between which partition walls 6, 7 and 8 are located.
  • These partitions are not designed to be continuous or in one piece, but are each subdivided into a part connected to or independent of the lower housing part 1 and a further part of the partition made as a single part.
  • the dividing wall parts 6a, 7a and 8a delimit arc chambers 2a, 2b, 2c and 2d, in which there are extinguishing plate arrangements and fixed and movable contact parts.
  • quenching plates 10 and a movable contact lever 11 are shown.
  • the previously mentioned parts have been omitted, while a fixed counter-contact 12 cooperating with the contact lever 11 can be seen.
  • the remaining chamber sections 2b, 3b, 4b and 5b are provided for receiving mechanical parts of the circuit breaker, which include in particular a switching shaft for actuating the movable contact levers and the latching and drive parts referred to as a switching lock, as well as triggers and additional components such as auxiliary triggers and auxiliary switches.
  • the partitions of these chambers are formed by partitions 6b, 7b and 8b, which are designed differently. For this purpose, reference is first made to FIGS. 2 and 3.
  • FIG. 2 shows the dividing wall part 6b which has an essentially T-shaped shape.
  • the head part of the dividing wall individual part 6b has two cross legs 13 and 14 of different lengths, which are the width of the chamber parts Correspond to 2b and 3b.
  • the chamber part 3b is designed to accommodate the drive and latching parts that are common to all chambers of the switching devices and is somewhat wider than the other chambers. The legs 13 and 14 thus close the chambers 2b and 3b on one end of the lower housing part 1.
  • the partition part 6b serves as a support for accessories.
  • a trigger 17 is shown, which can thus be mounted without any hindrance by adjacent parts before the partition wall part 6b is inserted into the insulating housing.
  • a shunt release 20 is provided, the plunger 21 of which can cooperate in a suitable manner with the drive and latching parts and which is provided with connecting pins 22 for supplying its solenoid.
  • FIG. 3 shows an auxiliary switch 24 attached to the dividing wall individual part 7b, the actuating plunger 25 of which protrudes into the chamber part 4b and can there interact in a suitable manner with the switching shaft of the switching device.
  • Figure 3 is also indicated by a dashed line that the height of the partition wall parts 7b and 8b can be different.
  • the partition wall parts to be provided on the upper housing part must also be selected differently.
  • the height of the dividing wall individual part 7b can be dimensioned for the entire height of the interior of the insulating material housing.
  • a gradation of the height can also be considered if the shape of the one located on the upper housing part Counterpart of the partition part is designed accordingly.
  • the height of the partition part 6b in FIG. 2 can be chosen differently in the manner described.
  • the lower housing part 1 is reinforced in the region of the transition between the chamber parts 2a and 2b and, analogously, at the transition between the other chamber parts, thereby simultaneously creating a space for the arrangement of holes 30 for fastening screws and for grooves 31 , in which the dividing wall parts 6b, 7b and 8b engage.
  • strip-like projections 18 and 26 are provided, which cooperate with corresponding grooves 32 of the lower housing part 1.
  • the ends of the legs 15 of the dividing wall part 6b rest on a housing projection 33 and the end of the leg 23 of the dividing wall part 8b on a housing projection 34.
  • all partition parts are fixed immovably.
  • the procedure is such that after the installation of the fixed parts of the current paths, in particular of connecting devices in the front-side connection spaces 35 and 36 of the lower housing part 1 and the further conductors directly connected therewith a selector shaft with contact levers and drive and latching parts acting on the selector shaft is inserted into the initially undivided space next to the arc chambers. Then the dividing wall individual parts 6b, 7b and 8b are used with the previously attached components of the accessories. In this way, an upper bearing shell for the selector shaft can be formed at the same time if corresponding recesses 27 and 28 are provided according to FIGS. 2 and 3. By placing an upper part of the housing, all chambers or chamber parts are closed and the dividing wall individual parts 6b, 7b and 8b are also fixed in the remaining direction perpendicular to the plane of the drawing in FIG. 1.
  • the lower housing part 1 has four parallel chambers. Accordingly, a T-shaped partition wall part 6b and two L-shaped partition wall parts 7b and 8b are used. If the same principle is to be applied to a three-pole switch, only a T-shaped partition wall part 6b and a single partition wall part 7b are required.
  • the circuit breaker 40 shown in FIG. 4 has an insulating housing 41 with a lower housing part 42 and an upper housing part 43.
  • the sectional view shows the main components of a current path of the circuit breaker 40.
  • a first connection device 44 this comprises a fixed contact piece 45, a movable switching lever 46, which can be pivoted by means of a switching shaft 47 for switching on and off, a flexible current band 50 and a clamping piece 51 as a whole with 52 designated electromagnetic release and the heating winding 55 for the bimetallic strip 56 of a thermal release designated as a whole with 54, which is connected via a connection bracket 57 to a second connection device 60.
  • the winding 53 of the electromagnetic release 52 is located on a U-shaped magnetic core 61, with the pole faces 62 of which a hinged armature 63 interacts.
  • the upper end of the hinged armature 63 interacts with a release shaft 64, to which the release movement of the bimetallic strip 56 of the thermal release 54 that is perpendicular to the image plane is also transmitted via a transmission part, not shown.
  • the magnetic core 61 with the winding 53 of the electromagnetic release 52 located thereon is in an adapted one Recess 66, which is integrally formed on an individual partition 67.
  • the bimetallic strip 65 is also attached to the dividing wall part 67.
  • the electromagnetic trigger 52 and the thermal trigger 54 can be mounted on the partition wall part 67 outside the insulating material housing 41.
  • This subunit is then kept ready at the assembly location of the circuit breaker 40. Then this assembly is inserted into the lower housing part 42.
  • the dividing wall part 67 extends from the connection space in which the connection device 60 is located to an arc quenching chamber 70 which is separated from the adjacent arc quenching devices by separate dividing wall parts.
  • the chamber of the insulating material housing 41, in which the described current path and adjacent current paths, not shown, are located, is closed off by the housing upper part 43.

Landscapes

  • Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Claims (1)

  1. Appareil de coupure multipolaire basse tension comportant un boîtier en matériau isolant (1) subdivisé en des chambres parallèles (2,3,4,5) par des parois de séparation (6,7,8,9), et des dispositifs de raccordement disposés dans les chambres ainsi que des voies de courant comportant des contacts fixes et mobiles (11,12) et des chambres de coupure, et dans lequel les parois de séparation (6,7,8) sont réalisées, au moins sur une partie de leur longueur et de leur hauteur, sous la forme d'éléments individuels de paroi de séparation (6b,7b,8b) et le boîtier en matériau isolant (1) ainsi que les éléments de paroi de séparation individuels (6b,7b,8b) sont pourvus d'évidements (32) et de parties saillantes (18,26), qui s'emboîtent, et dans lequel en outre les éléments de paroi de séparation individuels (6b,7b,8b) sont réalisés sous la forme de supports de composants ou d'accessoires intérieurs (17,20,24), caractérisé par le fait que
    chaque élément de paroi de séparation individel (6b,7b,8b) est réalisé d'un seul tenant avec au moins une partie transversale (13,14,23) fermant frontalement l'une des chambres (2,3,4,5),
    que l'un des éléments individuels de paroi de séparation (67) est agencé sous la forme d'une pièce en forme de T (6b) pour réaliser la fermeture frontale de deux chambres voisines (2,3) et que les éléments de paroi de séparation individuels (6b,7b,8b) s'étendent depuis une face frontale, qui comporte des logements de raccordement (36), du boîtier en matériau isolant (1) jusqu'aux chambres de coupure qui jouxtent la face frontale opposée, qui comporte d'autres logements de raccordement (35), et qui contiennent des dispositifs (2a,3a,4a,5a) d'extinction d'arcs électriques.
EP88730204A 1987-09-23 1988-09-07 Dispositif interrupteur multipolaire basse tension avec un boîtier isolant sous-divisé en chambres parallèles Expired - Lifetime EP0309384B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3732470 1987-09-23
DE19873732470 DE3732470A1 (de) 1987-09-23 1987-09-23 Mehrpoliges niederspannungs-schaltgeraet mit einem in parallele kammern unterteilen isolierstoffgehaeuse

Publications (2)

Publication Number Publication Date
EP0309384A1 EP0309384A1 (fr) 1989-03-29
EP0309384B1 true EP0309384B1 (fr) 1993-01-27

Family

ID=6336944

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88730204A Expired - Lifetime EP0309384B1 (fr) 1987-09-23 1988-09-07 Dispositif interrupteur multipolaire basse tension avec un boîtier isolant sous-divisé en chambres parallèles

Country Status (2)

Country Link
EP (1) EP0309384B1 (fr)
DE (2) DE3732470A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19653378A1 (de) * 1996-12-20 1998-06-25 Abb Patent Gmbh Installationsschalter
JP3843675B2 (ja) * 1999-12-13 2006-11-08 富士電機機器制御株式会社 多極開閉器の端子ユニット
DE10013103C1 (de) * 2000-03-17 2001-11-29 Aeg Niederspannungstech Gmbh Gehäuse
CN107845538B (zh) * 2017-10-16 2020-04-14 宁波鑫鑫鑫寅电气有限公司 一种大功率空气式双断口隔离负荷开关

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3421129A (en) * 1966-06-03 1969-01-07 Wood Electric Corp Multipole circuit breaker with sliding contact actuator and swinging latch plate
CH489887A (it) * 1968-04-13 1970-04-30 Bassani Spa Interruttore elettrico di potenza
FR224860A (fr) * 1973-04-05
FR2584527B1 (fr) * 1985-07-05 1988-04-15 Telemecanique Electrique Interrupteur de protection a poles accouplables

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Publication number Publication date
DE3732470A1 (de) 1989-04-13
EP0309384A1 (fr) 1989-03-29
DE3877878D1 (de) 1993-03-11

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