EP0003736A1 - Interrupteur de puissance à basse tension constitué d'un boîtier en matière isolante divisé en deux - Google Patents

Interrupteur de puissance à basse tension constitué d'un boîtier en matière isolante divisé en deux Download PDF

Info

Publication number
EP0003736A1
EP0003736A1 EP78101827A EP78101827A EP0003736A1 EP 0003736 A1 EP0003736 A1 EP 0003736A1 EP 78101827 A EP78101827 A EP 78101827A EP 78101827 A EP78101827 A EP 78101827A EP 0003736 A1 EP0003736 A1 EP 0003736A1
Authority
EP
European Patent Office
Prior art keywords
outer walls
housing
low
breaker
circuit breaker
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
EP78101827A
Other languages
German (de)
English (en)
Inventor
Bernhard Preuss
Manfred Krüger
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 EP0003736A1 publication Critical patent/EP0003736A1/fr
Ceased legal-status Critical Current

Links

Images

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
    • H01H71/025—Constructional details of housings or casings not concerning the mounting or assembly of the different internal parts
    • H01H71/0257—Strength considerations

Definitions

  • the invention relates to a low-voltage circuit breaker with stepwise overlapping lateral outer walls of an insulating material housing divided along a joint into an upper and a lower part.
  • a circuit breaker of this type has become known, for example, from US Pat. No. 3,943,316.
  • the step overlap of the outer walls of the upper part and the lower part of the insulating housing is carried out so that the upper part engages in the lower part. In this way, the housing parts are aligned with each other and the housing is sealed.
  • the invention has for its object, while maintaining the seal achievable by a step overlap of the housing parts, the mechanical strength of the insulating housing in the region of the outer walls to improve compared to the gas pressure occurring during switching operations.
  • This is achieved according to the invention in that the outer walls of the upper part overlap the outer walls of the lower part.
  • the step overlap is thus opposite to that of the known circuit breaker. It is thereby achieved that the spreading forces exerted by the gas pressure on the outer walls of the lower part are partially transferred into the outer walls of the upper part. With the same pressure load, a smaller material thickness can therefore be selected for the outer walls of the lower part.
  • the lower part of the housing can have continuous chambers for the current paths in its longitudinal direction, and the upper part can have reinforcing ribs running transversely to the outer walls, at least in the region of the arc chambers.
  • the continuous chambers of the lower part are advantageous for the installation of the current path, which can consist of fixed and movable contact pieces as well as flexible conductor strips, bimetal strips.
  • the outer walls have inclined surfaces interacting in the area of the gradation. These cause a wedge-like tension between the parts of the housing.
  • the invention has a particularly advantageous effect in the case of housings with an unequal pitch height between the lower and the upper part, which increases the breaking force acting on a side wall with increasing height of the side wall. * ) because
  • the circuit breaker 1 shown in simplified form in FIG. 1 has a housing 2 made of insulating material, which can be made, for example, from a molded material. As FIG. 1 shows, the housing 2 is divided into an upper part 3 and a lower part 4 along a parting joint in approximately two thirds of the total height.
  • the current path extends from a connecting terminal 5 via a fixed contact 6 and a movable contact 7 as well as via a flexible conductor 10 and a heating conductor 11 to a further connecting terminal 12 at the other end of the housing 2.
  • the movable contact 7 is through a contact carrier 13 a shift shaft 14 movable.
  • a drive lever 16 engages, which can be adjusted manually by means of an actuating handle 17 for switching on and off by means of a mechanism, not shown, known per se. From the switch-on position shown in FIG. 1, the movable switching element 7 is also independent of the actuating handle 17 and automatically into the switch-off position by the known current and voltage-dependent triggers lung convertible.
  • FIG. 2 shows a lower housing part 20 corresponding to the lower part 4 of the circuit breaker 1, with all built-in parts being omitted to improve clarity.
  • the lower part 20 has three continuous chambers 21, which are delimited by partitions 22 and outer walls 23. The length of each of the chambers 21 is divided into different areas.
  • the quenching chamber 25, which is intended for receiving the arc chamber, and a central drive chamber 26 are connected to a terminal chamber 24.
  • the following trigger space 27 extends across all chambers 21 and is intended to receive a common trigger block.
  • the lower end in turn form separate connection spaces 30 for each chamber 21.
  • the chambers 21, as can be seen particularly in FIG. 3, are free of partitions, so that the main components of the current path, as shown in the basic diagram in FIG. 1, can be inserted largely pre-assembled into the lower housing part 20.
  • the outer walls 23 of this lower part have a step 31 on the outside and a sloping surface 32.
  • the upper part 33 (FIG. 4) also has stepped outer walls 34 with sloping surfaces. The steps 35 are located on the inside of the outer walls 34 as well as the inclined surfaces 36.
  • the outer walls of the lower part and the upper part can be stepped at right angles even without inclined surfaces.
  • the desired power transmission from the outer walls of the lower part to the outer walls of the upper part is facilitated by the sloping surfaces.
  • the lower part 20 and the upper part 33 are held together by screws, for which suitable openings are provided in both housing parts.
  • Two screw holes 41 can be seen in FIG. 2, two of which are located in the region of the partition walls 22 near the connection spaces 24. and two more are located near the connection spaces 30 in the area of the outer walls 23.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Breakers (AREA)
EP78101827A 1978-01-19 1978-12-22 Interrupteur de puissance à basse tension constitué d'un boîtier en matière isolante divisé en deux Ceased EP0003736A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2802553 1978-01-19
DE19782802553 DE2802553B1 (de) 1978-01-19 1978-01-19 Niederspannungs-Leistungsschalter mit geteiltem Isolierstoffgehaeuse

Publications (1)

Publication Number Publication Date
EP0003736A1 true EP0003736A1 (fr) 1979-09-05

Family

ID=6030025

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78101827A Ceased EP0003736A1 (fr) 1978-01-19 1978-12-22 Interrupteur de puissance à basse tension constitué d'un boîtier en matière isolante divisé en deux

Country Status (3)

Country Link
EP (1) EP0003736A1 (fr)
JP (1) JPS54113079A (fr)
DE (1) DE2802553B1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0309924A2 (fr) * 1987-09-29 1989-04-05 CGE- COMPAGNIA GENERALE ELETTROMECCANICA S.p.A. Boîtier moulé et couvercle d'un disjoncteur limiteur de courant
EP0360366A2 (fr) * 1988-09-19 1990-03-28 Siemens Aktiengesellschaft Boîtier moulé pour un disjoncteur électrique de puissance basse tension avec renfort contre une surpression
FR2637120A1 (fr) * 1988-09-29 1990-03-30 Gen Electric Agencement de boitier et de couvercle en materiau plastique moule pour des disjoncteurs a limitation de courant

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03116546U (fr) * 1990-03-07 1991-12-03
JPH11154453A (ja) * 1997-11-20 1999-06-08 Mitsubishi Electric Corp 回路遮断器の筐体
JP2001319555A (ja) * 2000-05-12 2001-11-16 Kawamura Electric Inc 回路遮断器のカバー
JP4859121B2 (ja) * 2006-09-26 2012-01-25 日東工業株式会社 回路遮断器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1438963B2 (de) * 1964-12-19 1971-08-15 Bassani SpA, Mailand (Italien) Schalterkombination aus einem fehlerstromausloeser und einem elektromagnetischen ausloeser
DE2363916A1 (de) * 1972-12-29 1974-07-04 Westinghouse Electric Corp Selbstschalter mit ausloeseantrieb und statischem auswertungsgeraet
DE1463033C3 (de) * 1964-03-16 1975-01-23 J.A. Crabtree & Co., Ltd., Walsall, Staffordshire (Grossbritannien) Thermischer Uberlastschalter, insbesondere für Motor-Anlasser
US3943316A (en) * 1974-04-29 1976-03-09 Square D Company Current limiting circuit breaker
DE2649056A1 (de) * 1975-11-11 1977-05-12 Westinghouse Electric Corp Motorschutzschalter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5422821B2 (fr) * 1974-04-15 1979-08-09
CA1043840A (fr) * 1974-04-29 1978-12-05 Square D. Company Disjoncteur limiteur de courant

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1463033C3 (de) * 1964-03-16 1975-01-23 J.A. Crabtree & Co., Ltd., Walsall, Staffordshire (Grossbritannien) Thermischer Uberlastschalter, insbesondere für Motor-Anlasser
DE1438963B2 (de) * 1964-12-19 1971-08-15 Bassani SpA, Mailand (Italien) Schalterkombination aus einem fehlerstromausloeser und einem elektromagnetischen ausloeser
DE2363916A1 (de) * 1972-12-29 1974-07-04 Westinghouse Electric Corp Selbstschalter mit ausloeseantrieb und statischem auswertungsgeraet
US3943316A (en) * 1974-04-29 1976-03-09 Square D Company Current limiting circuit breaker
DE2649056A1 (de) * 1975-11-11 1977-05-12 Westinghouse Electric Corp Motorschutzschalter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0309924A2 (fr) * 1987-09-29 1989-04-05 CGE- COMPAGNIA GENERALE ELETTROMECCANICA S.p.A. Boîtier moulé et couvercle d'un disjoncteur limiteur de courant
EP0309924A3 (en) * 1987-09-29 1990-06-13 Cge- Compagnia Generale Elettromeccanica S.P.A. Molded case and cover arrangement for current limiting circuit breakers
EP0360366A2 (fr) * 1988-09-19 1990-03-28 Siemens Aktiengesellschaft Boîtier moulé pour un disjoncteur électrique de puissance basse tension avec renfort contre une surpression
EP0360366A3 (fr) * 1988-09-19 1991-11-06 Siemens Aktiengesellschaft Boítier moulé pour un disjoncteur électrique de puissance basse tension avec renfort contre une surpression
FR2637120A1 (fr) * 1988-09-29 1990-03-30 Gen Electric Agencement de boitier et de couvercle en materiau plastique moule pour des disjoncteurs a limitation de courant

Also Published As

Publication number Publication date
DE2802553B1 (de) 1979-01-18
JPS54113079A (en) 1979-09-04

Similar Documents

Publication Publication Date Title
EP0309386A1 (fr) Disjoncteur multipolaire de puissance à basse tension avec un boîtier isolant et chambre d'extinction d'arc
EP0632927B1 (fr) Interrupteur a vide multipolaire muni d'un dispositif isolant entourant chacun des tubes interrupteurs a vide
DE2134352B2 (de) Mikrowellen-Koaxialschalter
EP0003736A1 (fr) Interrupteur de puissance à basse tension constitué d'un boîtier en matière isolante divisé en deux
EP0003236B1 (fr) Interrupteur de puissance à basse tension constitué d'un boîtier en matière isolante subdivisé par des parois de séparation
DE3827306A1 (de) Wasserdichte schalteinrichtung fuer elektrische anlagen
DE3840940C2 (fr)
EP0177438B1 (fr) Interrupteur multipolaire avec des boîtiers séparés en matière isolante pour chaque pôle
EP0180537A2 (fr) Interrupteur du type MCCB à deux parts de boîte
EP0916148A1 (fr) Boitier de chambre de commutation pour un sectionneur de puissance et modules servant a fabriquer ce boitier de chambre de commutation
DE69934559T2 (de) Einbau des Einschaltwiderstandes für Hochspannungsanlage
EP0309384B1 (fr) Dispositif interrupteur multipolaire basse tension avec un boîtier isolant sous-divisé en chambres parallèles
EP1297547A1 (fr) Barrette a connexions pour dispositifs et appareils electriques utilisables pour differents courants nominaux et comportant une cavite
EP0632928B1 (fr) Interrupteur a vide avec un montage en boucle de courant
DE3334671A1 (de) Mehrzweckschalter fuer videokameras
DE2817414C3 (de) Hilfsauslöser mit Unterbrechungsschalter für mehrpolige Niederspannungs-Schutzschalter
EP0734580A1 (fr) Sectionneur de puissance de haute tension avec une electrode de champ
DE2737021C3 (de) Trennschalter fur Niederspannung
DE2855205A1 (de) Mehrpoliges mittelspannungsschaltgeraet mit stufenloser einstellung von unterschiedlichen polmittenabstaenden
DE1072718B (de) Kleinselbstschalter mit thermischer Auslösung
DE1588270C (de) Selbstschaltergehause
DE693180C (de) Walzenschalter
DE2217031A1 (de) Lichtbogenkammer
DE1588270B2 (de) Selbstschaltergehaeuse
CH683304A5 (de) NH-Sicherungs-Lastschaltvorrichtung.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE CH DE FR GB IT LU NL SE

17P Request for examination filed
16A New documents despatched to applicant after publication of the search report
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19820212

RIN1 Information on inventor provided before grant (corrected)

Inventor name: PREUSS, BERNHARD

Inventor name: KRUEGER, MANFRED