EP0028013A1 - Disjoncteur garni d'un boîtier - Google Patents

Disjoncteur garni d'un boîtier Download PDF

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Publication number
EP0028013A1
EP0028013A1 EP80106489A EP80106489A EP0028013A1 EP 0028013 A1 EP0028013 A1 EP 0028013A1 EP 80106489 A EP80106489 A EP 80106489A EP 80106489 A EP80106489 A EP 80106489A EP 0028013 A1 EP0028013 A1 EP 0028013A1
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
housing
arc
grooves
cover
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.)
Withdrawn
Application number
EP80106489A
Other languages
German (de)
English (en)
Inventor
Kiyoshi Dipl.-Ing. Kandatsu
Makoto Dipl.-Ing. Yamazaki
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Publication of EP0028013A1 publication Critical patent/EP0028013A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/18—Means for extinguishing or suppressing arc
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/342—Venting arrangements for arc chutes

Definitions

  • the invention relates to an electrical circuit breaker provided with a housing and having an arc quenching device, in the housing walls of which there are grooves for inserting arc quenching plates.
  • grooves are incorporated in the base of the switch plate in accordance with the required number of extinguishing plates, the length of which is dimensioned such that they can accommodate the extinguishing plates and one for these on the inside of the switch Make a stop.
  • the groove intended for receiving a closure plate which has a curvature over part of its length which is at least so strong that the width of a shoulder is equal to the groove width.
  • extinguishing devices known (DE-AS 1 413 990), in which the arc quenching chamber consists of a fire-extinguishing sheet packet loosely encased by the side legs of a U-shaped frame, in which the side legs of the frame have incisions, into which the approaches of the fire-extinguishing sheets engage.
  • an additional frame which must be elastic, is required to hold the extinguishing plates.
  • the invention is intended to provide a circuit breaker which is easy to set up, in particular with regard to the arc quenching device, ie can be produced in a simple, cost-saving manner.
  • the circuit breaker has a housing 2 and a cover 3 for the housing, which is made of thermosetting resin (thermoset) such as polyester premix. Screws, not shown, are used to fasten the fixed, U-shaped contact piece 4 in the housing 2. On one leg of the fixed contact piece 4, the fixed contact pad 5 and an arcing horn 6 are attached. The screws pass through an iron core 7, which serves as a magnetic shield, and an insulating plate 8.
  • a movable contact piece 9 has the contact pad 10, which is arranged opposite the fixed contact pad 5. The movable contact piece and the contact pad are carried by a carrier 11, which starts from a switching mechanism, not shown.
  • a support plate 12 is connected by a rivet 13 to the bent end of the arcing guide 6 and is thus connected to the housing 2 via the support plate 12.
  • a plurality of arc extinguishing plates 15 are provided with V-shaped recesses 15a, as shown in FIG. 4, which are known as deionization grids.
  • the arc extinguishing plates 15 extend in their longitudinal direction parallel to the switching direction of the movable contact piece 9 with the V-shaped recesses 15a in the direction of the latter.
  • Partitions 16 made of a heat-resistant, insulating material such as polyester resin, one of which is shown in FIG. The partitions serve to reduce the amount of gas released when a load is switched off and the switching gases are cooled.
  • the partitions 16 form side surfaces in the area of the arc formation in the arc quenching chamber.
  • the arc extinguishing plates 15, the partitions 16, the net plate 14 and the support plate 12 are fitted in vertical cavities 2a, 2b, 2c which are molded in the inner surface of the housing 2, as can be seen from FIG. 6.
  • 6 shows the housing 2 in section
  • FIG. 7 shows a top view of the housing 2.
  • the housing 2 is used as a side wall of the arc quenching chamber.
  • the arc extinguishing plates 15 are adapted to the cavities 2a, the partition 16 of the cavity 2b and the sieve plate 14 and the support plate 12 of the cavity 2c.
  • the cover 3 has hollows 3a, the edges of which serve as stops for the arc extinguishing plates 15, and a hollow 3b for the screen plate 14.
  • the cover 3 covers the arc extinguishing plates 15 and the other parts which are fitted in the housing 2.
  • the cover 3 secures the arc extinguishing plates 15 and the sieve plate 14 against removal, ie displacement along the groove-shaped cavities 2a to 2c.
  • the cover 3 provides a space 3c in which suitable means such as a rail, a network or the like for cooling the gases between the cover and the ends of the inverted V-shaped cutouts can be provided in the arc extinguishing plates 15.
  • the circuit breaker according to the present invention has a case and a cover made of a high heat-resistant insulating thermosetting resin.
  • a plurality of vertical recesses are formed in the housing, specifically in the part that accommodates the arc quenching chamber. It extends essentially in the direction of the switching movement of the movable contact piece.
  • Arc quenching plates, screen plate and partition are adapted to the hollows and secured against falling out by the cover. With such an arrangement it is possible to do without fastening means for the arc quenching plates.
  • the arc quenching chamber is enlarged due to the omission of a side plate. This creates space for cooling the switching gases.

Landscapes

  • Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
EP80106489A 1979-10-27 1980-10-23 Disjoncteur garni d'un boîtier Withdrawn EP0028013A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP13903279A JPS5663735A (en) 1979-10-27 1979-10-27 Circuit breaker
JP139032/79 1979-10-27

Publications (1)

Publication Number Publication Date
EP0028013A1 true EP0028013A1 (fr) 1981-05-06

Family

ID=15235864

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80106489A Withdrawn EP0028013A1 (fr) 1979-10-27 1980-10-23 Disjoncteur garni d'un boîtier

Country Status (3)

Country Link
EP (1) EP0028013A1 (fr)
JP (1) JPS5663735A (fr)
DE (1) DE8028306U1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0251160A3 (en) * 1986-06-27 1988-08-24 Brown, Boveri & Cie Aktiengesellschaft Quenching device for electric circuit breaker
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
US6573815B1 (en) 1999-12-02 2003-06-03 Mitsubishi Denki Kabushiki Kaisha Circuit breaker
CN108447714A (zh) * 2018-04-04 2018-08-24 上海电科电器科技有限公司 灭弧室

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012015247A1 (de) * 2012-08-01 2014-02-20 Abb Ag Schaltkammer-Baugruppe und Schaltgerät

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1171050B (de) * 1962-01-29 1964-05-27 Dresden Elektroschaltgeraete Halterung fuer Lichtbogenleitbleche und -ent-ionisierungsbleche in Lichtbogenkammern
DE1233929B (de) * 1965-10-30 1967-02-09 Elektroschaltgeraete Rochlitz Halterung fuer Verschlussplatten von Lichtbogen-loeschraeumen
DE1413990B2 (de) * 1962-04-26 1969-11-27 Licentia Patent-Verwaltungs-GmbH, 6000 Prankfurt Lichtbogenlöschicammer für Selbstschalter
DE7601104U1 (de) * 1976-01-16 1976-05-13 Felten & Guilleaume Carlswerk Ag, 5000 Koeln Leitungsschutzschalter mit Gehäuse in Schmalbauweise

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1171050B (de) * 1962-01-29 1964-05-27 Dresden Elektroschaltgeraete Halterung fuer Lichtbogenleitbleche und -ent-ionisierungsbleche in Lichtbogenkammern
DE1413990B2 (de) * 1962-04-26 1969-11-27 Licentia Patent-Verwaltungs-GmbH, 6000 Prankfurt Lichtbogenlöschicammer für Selbstschalter
DE1233929B (de) * 1965-10-30 1967-02-09 Elektroschaltgeraete Rochlitz Halterung fuer Verschlussplatten von Lichtbogen-loeschraeumen
DE7601104U1 (de) * 1976-01-16 1976-05-13 Felten & Guilleaume Carlswerk Ag, 5000 Koeln Leitungsschutzschalter mit Gehäuse in Schmalbauweise

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0251160A3 (en) * 1986-06-27 1988-08-24 Brown, Boveri & Cie Aktiengesellschaft Quenching device for electric circuit breaker
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
US6573815B1 (en) 1999-12-02 2003-06-03 Mitsubishi Denki Kabushiki Kaisha Circuit breaker
CN108447714A (zh) * 2018-04-04 2018-08-24 上海电科电器科技有限公司 灭弧室

Also Published As

Publication number Publication date
JPS5663735A (en) 1981-05-30
DE8028306U1 (de) 1981-04-23

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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): DE FR IT

STAA Information on the status of an ep patent application or granted ep patent

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18W Application withdrawn

Withdrawal date: 19811009

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KANDATSU, KIYOSHI, DIPL.-ING.

Inventor name: YAMAZAKI, MAKOTO, DIPL.-ING.