EP0259272A2 - Schalter, vorzugsweise aber nicht ausschliesslich doppelpoliger Schalter, für Montage auf Rahmen geschlossener Gehäuse von elektrischen Einrichtungen im zivilen Bereich - Google Patents

Schalter, vorzugsweise aber nicht ausschliesslich doppelpoliger Schalter, für Montage auf Rahmen geschlossener Gehäuse von elektrischen Einrichtungen im zivilen Bereich Download PDF

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Publication number
EP0259272A2
EP0259272A2 EP87830214A EP87830214A EP0259272A2 EP 0259272 A2 EP0259272 A2 EP 0259272A2 EP 87830214 A EP87830214 A EP 87830214A EP 87830214 A EP87830214 A EP 87830214A EP 0259272 A2 EP0259272 A2 EP 0259272A2
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
core member
civil
cheek
ranges
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Withdrawn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
EP87830214A
Other languages
English (en)
French (fr)
Other versions
EP0259272A3 (de
Inventor
Fabrizio Fabrizi
Ennio Calderara
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.)
Bassani SpA
Bassani Ticino SpA
Original Assignee
Bassani SpA
Bassani Ticino SpA
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 Bassani SpA, Bassani Ticino SpA filed Critical Bassani SpA
Publication of EP0259272A2 publication Critical patent/EP0259272A2/de
Publication of EP0259272A3 publication Critical patent/EP0259272A3/de
Withdrawn legal-status Critical Current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
    • H01H71/0221—Majority of parts mounted on central frame or wall
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
    • 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
    • H01H2071/0242—Assembling parts of a circuit breaker by using snap mounting techniques
    • 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
    • H01H71/002—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00 with provision for switching the neutral conductor

Definitions

  • This invention relates to a circuit breaker intended for mounting on anclosed box carrier frames of civil ranges of electric equipment, such as the MAGIC, LIVING, TEKNE ranges and the like models.
  • a circuit breaker as indicated being characterized in that it comprises a supporting core member for circuit breaking linkages, a plurality of cheek pieces, each provided with means of attachment to a carrier frame from a respective civil range, and means of fastening each cheek piece to the core member.
  • the numeral 1 designates generally a circuit breaker according to this invention, as intended for mounting on a small carrier frame, omitted from the drawing, within an enclosed type box for a civil electric equipment range. Understandably, such circuit breakers as this would also lend themselves for jutting installations and incorporation to exchanges.
  • the circuit breaker 1 of this invention comprises a core member 2 of substantially parallelepipedal shape which is formed of a substantially rectangular central diaphragm 3 bounded by a framing member 4 along one side and both sides adjoining said one side.
  • the circuit breaker 1 further comprises a pair of cheek pieces, namely a first cheek piece 5 and second cheek piece 6, and fasteners 7 for securing the cheek pieces 5 and 6 on the core member 2, thereby a box-type body 8 is formed which is suitable for mounting on a carrier frame from the MAGIC civil range and constitutes a module, its cross dimensions measuring preferably 23 to 25 mm.
  • the cheek pieces 5 and 6 are provided with attachment means, respectively indicated at 5a and 6a, in the form of preset size blocks adapted to engage with mating attachment means associated with the MAGIC range carrier frame.
  • the fasteners 7 for securing the cheek pieces 5 and 6 on the core member 2 comprise four screws 9 extending from the cheek piece 5 through the core member 2 to threadably engage in the cheek piece 6.
  • the circuit breaker 1 also comprises a further pair of cheek pieces 10 and 11, respectively interchangeable with the cheek pieces 5 and 6 in the first-mentioned pair and having like fasteners 7.
  • the circuit breaker 1 would fit a carrier frame from the LIVING civil range.
  • the cheek pieces 10 and 11 are provided with respective attachment means 10a and 11a in the form of blocks of a preset size and adapted to engage with mating means of attachment associated with a carrier frame from the LIVING range.
  • the circuit breaker 1 additionally comprises a further pair of cheek pieces 12 and 13, also respectively interchangeable with the cheek pieces 5 and 6 in the first-mentioned pair, and also attachable to the core member 2 by means of like fasteners 7.
  • the circuit breaker 1 would fit a carrier frame from the TEKNE range.
  • the cheek pieces 12 and 13 are provided with hook-up dogs 12a and 13a which are adapted to engage in corresponding sockets associated with a carrier frame from the TEKNE range.
  • a pole pair Housed within the body 8 of the circuit breaker 1 are a pole pair, namely a protected pole 14 and a neutral pole 15.
  • the protected pole 14 is accommodated between the core member 2 and the cheek piece 5, and extends from an input terminal 16 to an output terminal 17.
  • the neutral pole 15 is accommodated between the core member 2 and the cheek piece 6, and extends from an input terminal 20 to an output terminal 21.
  • the circuit breaker 1 also comprises circuit breaking linkages, comprehensively designated 24, which are supported on the core member 2.
  • the linkages 24 include a key 25 and a moving contact holder assembly 26. Between the key 25 and the moving contact holder assembly 26 there is provided a toggle mechanism, known per se, as indicated at 27.
  • the circuit breaking linkages 24 also comprise a spring-loaded lever 28 for hooking the moving contact holder assembly 26 into the making position of the circuit breaker.
  • the lever 28 is pivoted to the diaphragm 3 astride it, and has two lugs 29 and 30 placed on opposed sides of the diaphragm 3, the lug 29 being located on the cheek member 5 side, and the lug 30 being located on the cheek member 6 side.
  • the moving contact holder assembly 26 includes a contact carrier body 31, being a one-piece construction from a non-conductive material, such as a plastics material, which straddles the diaphragm 3 of the core member 2.
  • Spring mounted to the contact carrier body 31 are two moving contacts 19 and 23 via respective means of attachment 32 to be explained hereinafter.
  • the two moving contacts 19 and 23 extends on opposed sides of the diaphragm 3 into two respective arcing chambers 33 and 34 formed in the body 8 between the core member 2 and the cheek pieces 5 and 6, respectively.
  • the arcing chambers 33 and 34 are formed with respective venting slits 33a and 34a which open outwards and are formed in part in the cheek pieces and in part in the framing member 4 of the core member 2 on opposed sides relatively to the central diaphragm 3.
  • the moving contacts 19 and 23 are movable along equal paths T toward and away from their respective fixed contacts 19 and 22 facing in said chambers 33 and 34, respectively.
  • a throughgoing socket 35 having an L-shaped cross section.
  • the numeral 36 denotes a metal cross-piece, preferably made of copper-plated iron, which has an L-shaped cross-section matching the L-shaped cross-section of the throughgoing socket 35.
  • This crosspiece penetrates, with a middle portion 37 thereof, the throughgoing soscket 35 in a substantially force fit relationship therewith, and has opposed end portions 38 and 39 overhanging into the chambers 33 and 34.
  • the socket 35, and hence the crosspiece 36, are positioned relatively to the moving and fixed contacts such that the crosspiece locates itself at a preset distance from the path T, preferably at 2-3 mm therefrom, and such that the back of the "L" is facing the path T.
  • the key 25 of the circuit breaker 1 of this invention is adapted to be snap-action fitted with a capping 40 as appropriate for the MAGIC civil range.
  • the cheek pieces 5 and 6 are provided with respective seats 5b and 6b mating with the key 25.
  • Indicated at 41 is a yoke which extends all around the key 25 and its capping 40, and has means of mechanical connection arranged to interact between the attachment means 5a and 6a and the carrier frame from the MAGIC civil range.
  • the key 25 is adapted to be snap-action fitted, in an interchangeable manner with the capping 40, a capping 42 appropriate for the LIVING civil range, as well as a capping 43 appropriate for the TEKNE civil range, also interchangeably with the capping 40.
  • the cheek pieces 10 and 11, and the cheek pieces 12 and 13, are provided with respective seats 10b, 11b and 12b, 13b mating with the key 25.
  • the inventive circuit breaker 1 further comprises, within the body 8, an amperometer coil 44 of large cross-section area wire, which is accommodated on the core member 2 on the cheek piece 5 side, at the protected pole 14.
  • the amperometer coil 44 has a respective pusher 45 adapted to engage with the lug 29 on the hook-up lever 28 to release the moving contact carrier assembly 26 on the occurrence of shorting currents, thereby causing the circuit breaker to break.
  • This circuit breaker 1 also includes a bimetallic strip thermal relay 62 housed at a location close to the amperometer coil 44, between the core member 2 and the cheek piece 5. It is operative on the lever 28 to release the moving contact carrier assembly 26.
  • the circuit breaker 1 of this invention also comprises, within the body 8, a thin wire voltmeter coil 46 which is accommodated on the core member 2, on the cheek piece 6 side and at the neutral pole 15.
  • the voltmeter coil 46 has a respective pusher 47 adapted to engage with the lug 30 on the hook-up lever and release the moving contact carrier assembly 26 on the occurrence of a remote control command or by differential operation, thereby causing the circuit breaker to break.
  • the circuit breaker 1 either operates manually, by acting on the capping, or automatically by operation of the amperometer and voltmeter coils and of the thermal relay.
  • attachment means 32 for spring-loaded attachment of the moving contact 19 to the contact carrier body 31 will be next described.
  • These attachment means 32 comprise a pin 48 jutting out of the contact carrier body 31 toward the cheek piece 5.
  • the pin 48 engages with a hole 49 formed in a central portion 50 of the moving contact 19.
  • the attachment means 32 also comprise a forked spring 51 having a base 52 and two prongs 53 and 54 with free ends 55 and 56.
  • the forked spring 51 has a base 52 which lies astride the moving contact 19 at an active forward portion 57 thereof, has its prongs 53 and 54 extending from the opposed sides of the center portion 50 and wound into a spiral with turns wound in opposite directions around the pin 48, and has its free ends 55 and 56 of the prongs 53 and 54 engaged with a lug 58 formed on the contact carrier body 31.
  • the spring 51 constantly urges, with its base 52, the moving contact 19 to rotate around the pin 48 toward the fixed contact 18.
  • a rearward tail portion 59 of the moving contact 19 engages with the lug 58 to stop the rotary movement.
  • Retainer means 60 are provided to retain the moving contact 19 axially on the pin 48. These retainer means 60 are comprised of an elevation 61 formed on the lug 58 of the contact carrier body 31, against which the free end 56 of the prong 54 of the spring 51 engages laterally.
  • the attachment means 32 for spring-loaded attachment of the moving contact 23 to the contact carrier body 31 are arranged symmetrically with respect to the ones discussed above for securing the contact 19 relatively to the diaphragm 3, and accordingly, will not be described in detail.
  • the circuit breaker of this invention affords the principal advantage of facilitating production of a variety of models, in agreement with various civil ranges for which it is intended.
  • a main portion of the circuit breaker is shared by the various models and can be readily fitted with simple parts, such as the cheek pieces and the cappings, in order to adapt it for use with the different civil ranges to be equipped therewith.
  • circuit breaking linkages, key, contact carrier assembly, and coils are all supported on the core member and may be assembled sequentially thereto by means of suitable assembling robots.
  • a further important advantage of the circuit breaker according to this invention resides in its compact size. In fact, by virtue of its structure being provided with a core member and cheek pieces, it can accommodate both a protected pole and a neutral pole, as well as an amperometer coil, a voltmeter coil, and a thermal relay for safeguarding against shorting, remote control, and thermal protection within a single module.
  • a not negligible advantage of the circuit breaker according to this invention is that it lends itself to accommodate additional electric functions, such as differential protection, by merely replacing a cheek piece with a suitable box-type element dimensioned to contain that electric function.
  • circuit breaker of this invention is, thanks to its compact size and ability to accommodate a variety of ancillary electric functions, in keeping with the growing trend toward splitting of electric systems, that is multiplication of the protected branch-offs individually located in the proximities of the individual use outlets.
  • circuit breaker disclosed hereinabove may be altered and modified in various ways by a skilled person in the art to meet specific contingent requirements, within the protection scope of the invention as set forth in the appended claims.

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  • Breakers (AREA)
EP87830214A 1986-08-04 1987-06-09 Schalter, vorzugsweise aber nicht ausschliesslich doppelpoliger Schalter, für Montage auf Rahmen geschlossener Gehäuse von elektrischen Einrichtungen im zivilen Bereich Withdrawn EP0259272A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2275086U IT207990Z2 (it) 1986-08-04 1986-08-04 Interruttore, preferibilmente manon esclusivamente bipolare ed automatico, destinato al montaggio in telaietti per scatole ad incasso di apparecchiature elettriche di serie civili.
IT2275086U 1986-08-04

Publications (2)

Publication Number Publication Date
EP0259272A2 true EP0259272A2 (de) 1988-03-09
EP0259272A3 EP0259272A3 (de) 1988-08-17

Family

ID=11200015

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87830214A Withdrawn EP0259272A3 (de) 1986-08-04 1987-06-09 Schalter, vorzugsweise aber nicht ausschliesslich doppelpoliger Schalter, für Montage auf Rahmen geschlossener Gehäuse von elektrischen Einrichtungen im zivilen Bereich

Country Status (3)

Country Link
EP (1) EP0259272A3 (de)
BR (1) BR6701522U (de)
IT (1) IT207990Z2 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0403358A1 (de) * 1989-06-16 1990-12-19 Hager Electro S.A. Null- und Phasenschalter
EP0456587A1 (de) * 1990-05-10 1991-11-13 Schneider Electric Sa Isolierendes Gehäuse für Miniatur-Lastschalter mit Vorassemblagemitteln
FR2674986A1 (fr) * 1991-04-08 1992-10-09 Hager Electro Disjoncteur unipolaire modulaire perfectionne et son procede de montage.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB783470A (en) * 1955-06-17 1957-09-25 Crabtree & Co Ltd J A Improvements in dolly-operated circuit breakers
FR1403969A (fr) * 1964-04-11 1965-06-25 Bassani Spa Système de protection singulière des différentes utilisations dans les installations électriques à l'usage civil et appareil de protection y relatif
DE2901246A1 (de) * 1978-01-27 1979-08-02 Hager Electro Elektrotechnische vorrichtung
EP0099786A1 (de) * 1982-07-12 1984-02-01 Merlin Gerin Zweipoliger Differentialschutzschalter
US4500746A (en) * 1980-03-14 1985-02-19 Slater Electric Inc. Self-contained electrical wiring device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB783470A (en) * 1955-06-17 1957-09-25 Crabtree & Co Ltd J A Improvements in dolly-operated circuit breakers
FR1403969A (fr) * 1964-04-11 1965-06-25 Bassani Spa Système de protection singulière des différentes utilisations dans les installations électriques à l'usage civil et appareil de protection y relatif
DE2901246A1 (de) * 1978-01-27 1979-08-02 Hager Electro Elektrotechnische vorrichtung
US4500746A (en) * 1980-03-14 1985-02-19 Slater Electric Inc. Self-contained electrical wiring device
EP0099786A1 (de) * 1982-07-12 1984-02-01 Merlin Gerin Zweipoliger Differentialschutzschalter

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0403358A1 (de) * 1989-06-16 1990-12-19 Hager Electro S.A. Null- und Phasenschalter
FR2648614A1 (fr) * 1989-06-16 1990-12-21 Hager Electro Disjoncteur phase et neutre
EP0456587A1 (de) * 1990-05-10 1991-11-13 Schneider Electric Sa Isolierendes Gehäuse für Miniatur-Lastschalter mit Vorassemblagemitteln
FR2662018A1 (fr) * 1990-05-10 1991-11-15 Merlin Gerin Boitier isolant pour un disjoncteur miniature equipe de moyens de preassemblage.
FR2674986A1 (fr) * 1991-04-08 1992-10-09 Hager Electro Disjoncteur unipolaire modulaire perfectionne et son procede de montage.
EP0508846A1 (de) * 1991-04-08 1992-10-14 Hager Electro S.A. Verbesserter enkelpoliger modularer Schalter und dessen Aufbau

Also Published As

Publication number Publication date
BR6701522U (pt) 1988-04-26
IT8622750V0 (it) 1986-08-04
IT207990Z2 (it) 1988-03-14
EP0259272A3 (de) 1988-08-17

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Inventor name: CALDERARA, ENNIO

Inventor name: FABRIZI, FABRIZIO