US3870980A - Electrical contact carrier for electrical circuit breakers - Google Patents

Electrical contact carrier for electrical circuit breakers Download PDF

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Publication number
US3870980A
US3870980A US401285A US40128573A US3870980A US 3870980 A US3870980 A US 3870980A US 401285 A US401285 A US 401285A US 40128573 A US40128573 A US 40128573A US 3870980 A US3870980 A US 3870980A
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US
United States
Prior art keywords
carrier member
circuit breaker
disposed
guide members
members
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
US401285A
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English (en)
Inventor
Fritz Pollmann
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
Siemens Corp
Original Assignee
Siemens Corp
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 Corp filed Critical Siemens Corp
Application granted granted Critical
Publication of US3870980A publication Critical patent/US3870980A/en
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
    • H01H50/00—Details of electromagnetic relays
    • H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
    • H01H50/645—Driving arrangements between movable part of magnetic circuit and contact intermediate part making a resilient or flexible connection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/546—Contact arrangements for contactors having bridging contacts

Definitions

  • An electrical circuit breaker of the type including a movable carrier member for the electrical contacts [30] Forelgn Apphcatmn Pnomy Data thereof, which is slidably disposed within a circuit Sept. 29, 1972 Germany 2248029 breaker housing and guided therein by means of elQn. gated lateral guide members.
  • the guide members are [52] US. Cl. 335/202, 335/262 slidably disposed in guide slots provided in the housing [51] Int. Cl. H01h 50/04 d are mounted on opposing sides of the carrier ld of Search 335/202, 132, 2 member.
  • the improvement comprises the provision of 200/280 lateral guide members which are separable from the carrier member and an additional guide member References Clted mounted on a side surface of the carrier member be- UNITED STATES PATENTS tween the lateral guide members, which is slidably dis- 3,331,039 7/1967 McGary 335/202 Posed in an additional elongated Slot in the circuit b k h FOREIGN PATENTS OR APPLICATIONS er Ousmg 675,729 11/1964 It'aly 335/132 5 Claims, 7 Drawing Figures Al7 A7 A7 PATENTEDHARI 5 3. 870.980
  • the invention relates generally to an electrical circuit breaker, and in particular, to an improved carrier member for the electrical contacts of an electromagnetic circuit breaker.
  • Electrical circuit breakers including slidable carrier members for the electrical contacts thereof are generally known in the prior art. See, for example, German Auslegeschrift No. 1,000,490.
  • Such carrier members generally include a pair of elongated, bar shaped projecting members attached to opposing sides thereof which are disposed in corresponding slots provided in the circuit breaker housing for guiding the carrier member therein.
  • solid sections of metallic material have been molded into the carrier member, or, alternatively, into the circuit breaker housing. These metallic sections, however, substantially increase the weight of the circuit breaker, and complicate its fabrication. It is also known to construct at least one of the surfaces of the guide slots or guide members from a plastic material having a polyamide base in order to reduce wear.
  • an electrical circuit breaker of the type including a movable carrier member for the electrical contacts thereof which is slidably disposed within a circuit breaker housing and includes elongated lateral guide members mounted on opposing sides of the carrier member and disposed in guide slots provided in the housing, for guiding the carrier member therein.
  • the improvement comprises the provision of an additional guide member mounted on a side surface of the carrier member between the lateral guide members and slidably disposed in an elongated slot provided in the housing for guiding the carrier member therein.
  • the additional guide member provides further stabilization of the carrier member so that tilting thereof during opening and closing of the electrical contacts is prevented.
  • the improvement further comprises the provision of lateral guide members which are separable from the carrier member. This feature permits the lateral guide members to be separably fabricated and construction of the carrier member is simplified.
  • FIG. 1 is a perspective view of an improved electrical contact carrier member for an electrical circuit breaker constructed according to the invention
  • FIG. 2 is a partial, cross-sectional view of a circuit breaker including a carrier member constructed according to the invention
  • FIG. 3 is a cross-sectional view of the circuit breaker taken along section 3-3 of FIG. 2;
  • FIG. 4 is a front view of a lateral guide member for a carrier member constructed according to the inventron;
  • FIG. 5 is a side view of the guide member of FIG. 4;
  • FIG. 6 is a bottom view of the guide member; and
  • FIG. 7 is a top plan view thereof.
  • an improved carrier member for an electrical circuit breaker in particular, an electromagnetic circuit breaker, comprises a generally rectangular shaped carrier member 1 having a recess 2 opening on one side thereof for receiving a switching magnet assembly 3, and upwardly extending receptacle members 4 in which the electrical contacts 5 of the circuit breaker are disposed.
  • Lateral guide members 9 are guided in circuit breaker housing guide slots 26 and are disposed on opposing sides of carrier member 1 and are separable therefrom.
  • the opposing sides of the carrier member include elongated, rectangular shaped recesses 11, disposed transverse to the direction of motion of the carrier member, which receive similar shaped projection members 10 formed on the inner side surfaces of guide members 9.
  • Axially disposed cylindrical shaped recesses 12 are provided in each guide member and open at the lower end there-of for receiving return springs 13.
  • An additional guide member 7 is disposed on the carrier member on a side surface 6 thereof joining the opposing sides on which guide members 9 are disposed.
  • Guide member 7 is disposed in an additional elongated guide slot 8 provided in the circuit breaker housing.
  • the electromagnetic circuit breaker comprises a three part housing 14a, 14b, and 140.
  • the housing accomodates a nonswitching magnet assembly 15, including coils 15a which, in conjunction with switching magnet assembly 3 in carrier member 1 causes the displacement of carrier member I when coils 15a are energized.
  • Stationary contacts 16 engage movable contacts 5 when the circuit breaker coils are energized and permit electrical power to flow between electrical terminals 16a.
  • An arc quenching arrangement 17 is provided in the known manner and is also displaced by the carrier member.
  • a coupling latch 18, comprising an elongated rectangular shaped rod, is disposed in the circuit breaker housing transverse to switching magnet assembly 3 andincludes a bend 19 which is disposed in a corresponding opening in carrier member 1 and secures the coupling latch in the magnet assembly.
  • Latch 18 is secured in carrier member 1 by means of apertures 20 provided in guide members 9 in which the ends of the latch are disposed.
  • Projecting members 21 are integrally formed within apertures 20 and are received in corresponding recesses provided in the ends of latch 18 for securely holding the latch in the guide members.
  • inwardly directed coupling recesses 22 are also provided in guide members 9 for receiving an actuating member 23 of at least one additional carrier member 24.
  • the actuating member 23 is disposed through a slot 25 provided in the circuit breaker housing which is disposed adjacent guide slots 26 in which guide members 9 are disposed.
  • Upwardly extending support members 27 are disposed in the housing below guide members 9 for securing springs 13 therein.
  • Guide members 7 and 9 provide a carrier member having significant advantages over conventional circuit breakers. Apertures 20 and 22, for example, cause significant weight reduction of the carrier member. Recesses 12 for return springs 13 protect the springs from damage and laterally support them. Guide members 9 may also be fabricated with guide surfaces 9a disposed along the entire axial length of the side surfaces thereof, since the members are fabricated separately and the mold for the guide members can be separated in a direction transverse to the longitudinal axis thereof. Also, since the guide members are separable from the carrier member, apertures for receiving coupling members of other carrier members can easily be provided therein. This feature permits several carrier members to be coupled together in the circuit breaker housing.
  • the latch disposed in the carrier member also insures that the switching assembly is securely held therein and is restrained from twisting movement. Furthermore, if the guide members are constructed so as to extend downwardly beyond the switching magnet assembly of the carrier member, the center of gravity thereof may be moved downwardly so as to further prevent tilting of the carrier member within the circuit breaker housing and the resultant abrasive wear caused thereby.
  • an electrical circuit breaker of the type including a movable carrier member for the electrical contacts thereof which is slidably disposed within a circuit breaker housing and includes elongated lateral guide members mounted on opposing sides of the carrier member, and disposed in guide slots provided in the housing, for guiding the carrier member therein, the improvement comprising, an additional guide member, disposed on a side surface of said carrier member joining said opposing sides between said lateral guide members, said circuit breaker housing including an additional guide slot for receiving said additional guide member and guiding said carrier member therein.
  • lateral guide members are separable from said carrier member and include outwardly extending projection members disposed on the inner surface thereof transverse to the longitudinal axis of said guide members, said carrier member further comprising elongated recesses disposed in said opposing surfaces thereof for receiving said projection members.
  • circuit breaker includes at least one additional carrier member including an actuating member coupled thereto, and wherein said lateral guide members further comprise inwardly directed coupling recesses for receiving said actuating members.
  • circuit breaker is an electro-magnetic circuit breaker and said carrier member further comprises a switching magnet assembly disposed therein and a transverse latch for securing said assembly in said carrier member, and wherein said lateral guide members include apertures for receiving the ends of said latch for securing said switching assembly thereto.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Push-Button Switches (AREA)
  • Contacts (AREA)
  • Adjustable Resistors (AREA)
  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
US401285A 1972-09-29 1973-09-27 Electrical contact carrier for electrical circuit breakers Expired - Lifetime US3870980A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE7235951U DE7235951U (de) 1972-09-29 1972-09-29 Elektromagnetisches Schaltgerät
DE19722248029 DE2248029A1 (de) 1972-09-29 1972-09-29 Traeger fuer die beweglichen kontakte eines schaltgeraetes

Publications (1)

Publication Number Publication Date
US3870980A true US3870980A (en) 1975-03-11

Family

ID=25763907

Family Applications (1)

Application Number Title Priority Date Filing Date
US401285A Expired - Lifetime US3870980A (en) 1972-09-29 1973-09-27 Electrical contact carrier for electrical circuit breakers

Country Status (8)

Country Link
US (1) US3870980A (enrdf_load_stackoverflow)
JP (1) JPS5528386B2 (enrdf_load_stackoverflow)
BR (1) BR7307494D0 (enrdf_load_stackoverflow)
DE (2) DE2248029A1 (enrdf_load_stackoverflow)
FR (1) FR2201528B1 (enrdf_load_stackoverflow)
GB (1) GB1437230A (enrdf_load_stackoverflow)
IT (1) IT993407B (enrdf_load_stackoverflow)
SE (1) SE388712B (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4733210A (en) * 1985-11-06 1988-03-22 Siemens Aktiengesellschaft Auxiliary switch hookup assembly in a motor contactor
US5038124A (en) * 1988-09-05 1991-08-06 Siemens Aktiengesellschaft Electromagnetic switchgear
US20100134224A1 (en) * 2008-12-03 2010-06-03 Ls Industrial Systems Co., Ltd. Electromagnetic contactor with abrasion preventing means
US20140210575A1 (en) * 2013-01-28 2014-07-31 James J. Kinsella Electrically operated branch circuit protector
US20150206684A1 (en) * 2012-12-05 2015-07-23 Fuji Electric Fa Components & Systems Co., Ltd. Electromagnetic contactor

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2916276C2 (de) * 1979-04-21 1986-04-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltgerät
DE2916805C2 (de) * 1979-04-26 1984-05-10 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltgerät
DE3032724A1 (de) * 1980-08-30 1982-04-29 Brown, Boveri & Cie Ag, 6800 Mannheim Elektromagnetisches schaltgeraet
DE3431664A1 (de) * 1984-08-29 1986-03-20 Brown, Boveri & Cie Ag, 6800 Mannheim Elektrischer Schalter
DE3827389A1 (de) * 1988-08-12 1990-02-22 Asea Brown Boveri Elektrisches schaltgeraet
DE102007013572B4 (de) * 2007-03-21 2009-06-18 Siemens Ag Kontaktsystem mit einer Schaltbrücke

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3331039A (en) * 1966-01-03 1967-07-11 Furnas Electric Co Contactor with floating coil and armature

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2918554A (en) * 1957-09-30 1959-12-22 Murray Mfg Corp Interlock contact mechanism
FR1356828A (fr) * 1963-05-20 1964-03-27 Stotz Kontakt Gmbh Relais pneumatique électro-magnétique
JPS4113646Y1 (enrdf_load_stackoverflow) * 1965-10-28 1966-06-27
DE1614342A1 (de) * 1966-05-24 1970-05-27 Pirelli Mehrpoliges elektromagnetisches Relais mit umkehrbaren Kontakten

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3331039A (en) * 1966-01-03 1967-07-11 Furnas Electric Co Contactor with floating coil and armature

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4733210A (en) * 1985-11-06 1988-03-22 Siemens Aktiengesellschaft Auxiliary switch hookup assembly in a motor contactor
US5038124A (en) * 1988-09-05 1991-08-06 Siemens Aktiengesellschaft Electromagnetic switchgear
US20100134224A1 (en) * 2008-12-03 2010-06-03 Ls Industrial Systems Co., Ltd. Electromagnetic contactor with abrasion preventing means
US8427262B2 (en) * 2008-12-03 2013-04-23 Ls Industrial Systems Co., Ltd. Electromagnetic contactor with abrasion preventing means
CN101752144B (zh) * 2008-12-03 2014-01-08 Ls产电株式会社 具有防磨损器件的电磁接触器
US20150206684A1 (en) * 2012-12-05 2015-07-23 Fuji Electric Fa Components & Systems Co., Ltd. Electromagnetic contactor
US9520246B2 (en) * 2012-12-05 2016-12-13 Fuji Electric Fa Components & Systems Co., Ltd. Electromagnetic contactor
US20140210575A1 (en) * 2013-01-28 2014-07-31 James J. Kinsella Electrically operated branch circuit protector

Also Published As

Publication number Publication date
IT993407B (it) 1975-09-30
JPS5528386B2 (enrdf_load_stackoverflow) 1980-07-28
GB1437230A (en) 1976-05-26
DE2248029A1 (de) 1974-04-11
FR2201528A1 (enrdf_load_stackoverflow) 1974-04-26
SE388712B (sv) 1976-10-11
DE7235951U (de) 1976-04-15
FR2201528B1 (enrdf_load_stackoverflow) 1979-08-31
JPS4971465A (enrdf_load_stackoverflow) 1974-07-10
BR7307494D0 (pt) 1974-08-22

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