US3624331A - Electric contact system - Google Patents

Electric contact system Download PDF

Info

Publication number
US3624331A
US3624331A US68681A US3624331DA US3624331A US 3624331 A US3624331 A US 3624331A US 68681 A US68681 A US 68681A US 3624331D A US3624331D A US 3624331DA US 3624331 A US3624331 A US 3624331A
Authority
US
United States
Prior art keywords
contact members
double
armed
contact
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
US68681A
Other languages
English (en)
Inventor
Harald Strubin
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.)
BBC Brown Boveri AG Germany
Original Assignee
Bbc Brown Boveri & Cie
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 Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Application granted granted Critical
Publication of US3624331A publication Critical patent/US3624331A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2041—Rotating bridge
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H1/226—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars

Definitions

  • the invention relates to an electric contact system with two spaced stationary contact members and a plurality of doublearmed contact members which are mounted on a rotatable shaft disposed between the stationary contacts. It is known in electric contact systems, for example for isolators, to employ so-called rotating knife contacts, constructed as double-anned contact members and which are operated by a rotating shaft or rotating isolator disposed between the stationary contact members. In known embodiments it is necessary, depending on the desired current carrying capacity, to provide fixed contact members or moving contact members in different embodiments, a feature which results in a substantial complexity in manufacture and in storage,
  • the doublearmed contact member be constructed of a plurality of parallel platelike individual contact members which are loosely rotatable on a rotating shaft so as to be movable relative to each other, the said parallel contact members being supported in the make direction by means of individual springs against a driving device, which is fixedly joined to the rotatable shaft and the endfaces of the parallel members in each case forming a wedge contact with the endfaces of the stationary contact members.
  • this method provides the advantage by selection of the number of parallel members to select the desired current carrying capacity of the rotating contact member in an uncomplicated manner by the stacking of a greater or lesser number of platelike contact members while the fixed contact members may be constructed as simple block contacts. This provides a relatively compact and space-saving system.
  • FIG. 1 shows an elevation in section of a rotary contact system and FIG. 2 shows a side elevation in section of FIG. 1.
  • the rotary shaft 3 having two diametrical drive lugs 3a and drive pins 3b fixedly inserted therein is disposed between the block-shaped, fixed contact members, 1,2, the endfaces of which are slightly chamfered.
  • the individual double-armed contact members 5 are retained together by means of the washer 6 and the circlip 7.
  • the contact members 5 are provided with slot-shaped recesses 5a through which the bolts 3b extend.
  • curved leaf springs 4 are also inserted into the aforementioned recesses by means of which the contact members 5 are driven by the pins 3b in the make direction, that is to say in an anticlockwise direction as seen in HO. 1.
  • the members 5 are driven after a brief dead travel by the pins 3b when the pins 3b strike the defining surfaces of the recesses 50 of the members 5.
  • the endfaces of the members 5, adapted to engage with the fixed contact members [,2 in the manner of a pressure contact by a wedging effect, are correspondingly chamfered. Being individually spring-biased, the contact members 5 are able to individually adapt themselves in the engaged position with the fixed contact members 1,2.
  • An electric contact system comprising two spaced apart stationary contact members, a plurality of double-armed parallelly arranged plate like contact members, each said arm being engageable at its end face with a corresponding one of said stationary contact members, a rotatable shaft supporting said double-armed contact members disposed between said stationary contact members, the plurality of double-armed contact members being loosely supported on aid rotatable shaft so as to be rotatabl driven relatively to each other, each arm of each of said doub e-armed contact members being provided with a slotted recess, springs individual to and disposed in each said recess, a driver device fixedly joined to the rotatable shaft for imparting rotatary movement to said doublearmed contact members through said springs when the shaft is rotated whereby the endfaces of the double-armed contact members are adapted in each case to form a wedge contact with the end faces of the stationary contact members.
  • a contact system as claimed in claim 1 wherein said driver device comprises pins extending through the slotted recesses of said double armed contact members to drive the springs disposed in said recesses.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Contacts (AREA)
  • Mechanisms For Operating Contacts (AREA)
US68681A 1969-09-22 1970-09-01 Electric contact system Expired - Lifetime US3624331A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1425969A CH505453A (de) 1969-09-22 1969-09-22 Elektrische Kontaktanordnung

Publications (1)

Publication Number Publication Date
US3624331A true US3624331A (en) 1971-11-30

Family

ID=4399348

Family Applications (1)

Application Number Title Priority Date Filing Date
US68681A Expired - Lifetime US3624331A (en) 1969-09-22 1970-09-01 Electric contact system

Country Status (8)

Country Link
US (1) US3624331A (de)
JP (1) JPS4926769B1 (de)
AT (1) AT297136B (de)
CH (1) CH505453A (de)
DE (1) DE1952146B2 (de)
FR (1) FR2062325A5 (de)
GB (1) GB1253509A (de)
SE (1) SE356632B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54130868U (de) * 1978-03-03 1979-09-11
DE3120006C2 (de) * 1981-05-20 1983-02-24 Arthur Pfeiffer Vakuumtechnik Wetzlar Gmbh, 6334 Asslar Drehbarer Hochstromkontakt
DE102004019251A1 (de) * 2004-04-16 2005-11-03 Magcode Ag Vorrichtung zur elektrischen Verbindung einer Stromgebereinrichtung mit einer Stromabnehmereinrichtung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2830144A (en) * 1954-08-11 1958-04-08 Mc Graw Edison Co Disconnecting switch
US2854553A (en) * 1953-10-29 1958-09-30 Ite Circuit Breaker Ltd In-line jaw
DE1063680B (de) * 1953-10-28 1959-08-20 Busch Jaeger Duerener Metall Elektrischer Schalter mit zwei in Reihe liegenden Unterbrechungsstellen
GB869810A (en) * 1958-12-13 1961-06-07 Brookhirst Switchgear Ltd Improvements in or relating to electrical connecting devices
US3127491A (en) * 1960-01-11 1964-03-31 Mc Graw Edison Co High voltage air switch
US3388225A (en) * 1966-09-29 1968-06-11 Ite Circuit Breaker Ltd Jaw for ice breaking switch
US3487456A (en) * 1968-03-13 1969-12-30 Gulf General Atomic Inc Contact system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1063680B (de) * 1953-10-28 1959-08-20 Busch Jaeger Duerener Metall Elektrischer Schalter mit zwei in Reihe liegenden Unterbrechungsstellen
US2854553A (en) * 1953-10-29 1958-09-30 Ite Circuit Breaker Ltd In-line jaw
US2830144A (en) * 1954-08-11 1958-04-08 Mc Graw Edison Co Disconnecting switch
GB869810A (en) * 1958-12-13 1961-06-07 Brookhirst Switchgear Ltd Improvements in or relating to electrical connecting devices
US3127491A (en) * 1960-01-11 1964-03-31 Mc Graw Edison Co High voltage air switch
US3388225A (en) * 1966-09-29 1968-06-11 Ite Circuit Breaker Ltd Jaw for ice breaking switch
US3487456A (en) * 1968-03-13 1969-12-30 Gulf General Atomic Inc Contact system

Also Published As

Publication number Publication date
GB1253509A (en) 1971-11-17
JPS4926769B1 (de) 1974-07-11
FR2062325A5 (de) 1971-06-25
DE1952146A1 (de) 1971-09-16
DE1952146B2 (de) 1971-12-23
CH505453A (de) 1971-03-31
AT297136B (de) 1972-03-10
SE356632B (de) 1973-05-28

Similar Documents

Publication Publication Date Title
US2419072A (en) Electric switch
GB582687A (en) Indexing means for multi-position rotary electric switches
GB1467159A (en) Electromagnetic switch
US3210491A (en) Self-contained mechanical interlock having oppositely rotatable interlocking elements
ES2004349A6 (es) Cerradura con mando electrico
US3624331A (en) Electric contact system
GB676343A (en) A multi-position electric switch
GB1251180A (de)
GB1419409A (de)
GB1294185A (en) Movable contact structure for an electric switch
GB1276807A (en) Quick acting safety disconnect electrical switch
US3609267A (en) Electric load changeover switch with movable contacts insertable in a rotary shaft, and arc discharge channels
ES473278A1 (es) Perfeccionamientos en dispositivos de guia y de suspension para asientos de vehiculos.
US3919512A (en) Spring actuated electric switch with particular latching dog arrangement
GB1037275A (en) Interlocking mechanism
US2499622A (en) Electric switch with magnetic biasing
US3614717A (en) Electric contact devices
US3575565A (en) Overtravel device for rotary electric switch
GB853162A (en) Improvements in or relating to electric cut-off switches having arc-quenching arrangements
US2158369A (en) Electric switch
GB1406173A (en) Electric switches
US2405005A (en) Double-throw switch
GB924120A (en) Rotary motor driven rotary switch
FI88084B (fi) Stroembrytare
GB1391287A (en) Electrical spring contacts