US3102935A - Electromagnetic air contactor - Google Patents

Electromagnetic air contactor Download PDF

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Publication number
US3102935A
US3102935A US57441A US5744160A US3102935A US 3102935 A US3102935 A US 3102935A US 57441 A US57441 A US 57441A US 5744160 A US5744160 A US 5744160A US 3102935 A US3102935 A US 3102935A
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US
United States
Prior art keywords
contact
plunger
contactor
contacts
severable
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
US57441A
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English (en)
Inventor
Christeler Ernst
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.)
Maschinenfabrik Oerlikon AG
Original Assignee
Maschinenfabrik Oerlikon AG
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Filing date
Publication date
Application filed by Maschinenfabrik Oerlikon AG filed Critical Maschinenfabrik Oerlikon AG
Application granted granted Critical
Publication of US3102935A publication Critical patent/US3102935A/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/20—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil
    • H01H50/22—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil wherein the magnetic circuit is substantially closed

Definitions

  • FIG. 1 A first figure.
  • the present invention aims at obviating the foregoing drawbacks.
  • both movable and fixed contacts are arranged to be detachable without the need of undoing screw connections.
  • FIG. 1 is atransverse section of an upper portion of a contactor member constructed in accordance with the invention
  • FIG. 2 is a transverse section of the lower portion of the contactor member
  • FIG. 3 is an elevation of the upper portion
  • FIG. 4 is an elevation of the lower portion
  • FIG. 5 is an elevation of another embodiment of the invention.
  • FIG. 6 is a transverse section through the embodiment indicated in FIG. 5;
  • FIG. 7 is a transverse section of still another embodiment of the invention.
  • FIG. 8 is a transverse section of the embodiment indicated in FIGS. 1 to 4 with the upper and lower sections shown together and with the movable contact in a non-contacting position;
  • FIG. 9 is a side elevation of the invention as indicated in FIG. 8.
  • FIG. 10 is a somewhat perspective view of the top portion of the member
  • FIG. 11 is a perspective view of one of the contacts.
  • FIG. 12 is a perspective view indicating the contact positions in the member.
  • the reference numeral 1 denotes the parting walls of a contactor compartment
  • 2 is a cross member between the parting walls
  • 3 is a contact bar which through a spring 4 applies pressure to a contact bridge member 5 carrying contact blocks 6.
  • the bridge members can be readily removed from the bar by withdrawing them laterally.
  • a bayonet joint which is not shown holds the fixed contacts 7 which are loaded by a spring 8 bearing on a cross member 9.
  • the plunger 10 of the magnet is connected with contact bar 3.
  • the upper part 1 of the contactor therefore contains the movable as Well as the fixed contacts.
  • FIGURE 2 shows the lower portion II of the contactor which substantially comprises coil 11, the associated body of magnet 12 and terminals 13.
  • FIGURE 3 is a side elevation, seen indirection A in FIGURE 1
  • FIGURE 4 is a corresponding view of FIGURE 2.
  • Like parts in the several drawings are indicated by the same reference numerals.
  • FIGURE 5 shows the magnet which according to FIG- URE 6 can be removed by deflecting leaf spring 16.
  • the connections of the contactors are especially easy to make because the terminals are completely free and accessible, and functionally important parts cannot be damaged.
  • the connections to the coil of the detachable magnet may be embodied in springs which automatically release when the magnet is removed.
  • FIGURE 7 is a contactor according to the invention in contact-making position. Springs 17 can be seen which on release serve for lifting contact bar 3.
  • FIGURES 8 and 9 show an assembled contactor in non-contacting position.
  • a feature of the construction is that the contacts 7 which are referred to as fixed contacts are slidablein a bore defined in cross member 9.
  • the bore in the member 9 includes a groove 9a (FIG. 8) to accommodate a projection 7a defined at the upper end of the contacts 7.
  • the contacts 7 are inserted by placing the spring on the shoulder portion 7b and aligning the projection 7a with the groove 9a. Once the spring is. compressed slightly, the projection 7a is displaced out of the groove so that it is retained in association with the member 9.
  • the contacts 7 are therefore fixed once they have been positioned on the member 9 and cannot be displaced downwardly due to the projection 7a. They may be displaced upwardly to compress the spring 8 and permit realignment of the projection 7a with the groove 9a for removal purposes.
  • FIGS. 8 and 10 to 12 it can be seen that the bayonet type of connection between the fixed contact 7 and the member 9 is provided.
  • Grooves 9a, 9a extend upwardly along the entire length of the member 9.
  • the contact 7 includes projections 7a, 7a which are aligned with the grooves 9a, 9a to permit insertion of the contacts. After the member 7 is inserted and the spring '8 is compressed, the member is rotated to bring the projections 7a, 7a out of alignment with the grooves 9a, 9a into alignment with diametrically opposite respective locking grooves 912, 9b.
  • An electromagnetic air contactor comprising first and second severable main portions, said first main portion including a contactor compartment including a portion with a bore defined therein, a first contact member slidable in said bore, first means biasing said first contact in a first direction, a movable second contact bar displaceably guided in said contact compartment, second means biasing said movable contact in a second direction opposite to said first direction toward engagement with said first contact, said second main portion having a connection contact with at least one terminal post disposed to be electrically connected to said first contact upon mating engagement of said first and second severable main portions, and electromagnetic plunger and coil means carried by said first and second severable main portions including a plunger displaceable along a path intercepting said second contact means to move the latter against said 'an opposite direction to permit electrical contacting engagement of said first and second contacts, wherein said electromagnetic solenoid means includes a plunger slidably carried by said first main portion and a solenoid carried by said second main portion.
  • An electromagnetic air contactor comprising first and second severable main portions, said first main portion including a contactor compartment including a portion with a bore defined therein, a first contact member slidable in said bore, first means biasing said first contact in a first direction, a movable second contact bar displaceably guided in said contactor compartment, second means biasing said movable contact in a second direction opposite to said first direction toward engagement with said first contact, said second main portion having a connection contact with at least one terminal post disposed to be electrically connected to said first contact upon matingengagement of said first and second severable main portions, and electromagnetic plunger and coil means oarriedby said first and second severable main portions including a plunger displaceable along a path intercepting said second contact means to move the latter against said second biasing means for disconnecting said first and second contacts, said plunger being displaceable in an opposite direction to permit electrical contacting engagement of said first and second contacts, including clamp.- ing means on one of said portions engageable with the other of said portions
  • An electromagnetic aircontact comprising first and I second severable main portions, said first main portion ina 4 said bore, first means biasing said first contact in afirst direction, a movable second contact bar displaceably guided in said contactor compartment, second means'biasing said movable contact in a second directionopposite to said first direction toward engagement with said first contact, said second main portion having a connection contact with at least one terminal post disposed to be electrically connected to said first contact upon mating engagement of said first and second severable main portions, and electromagnetic plunger and coil means carried by said first and second severable main portions including a plunger displaceable along a path intercepting said second contact means to move the latter against said,

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Push-Button Switches (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Slide Switches (AREA)
  • Electromagnets (AREA)
  • Switch Cases, Indication, And Locking (AREA)
US57441A 1959-09-25 1960-09-21 Electromagnetic air contactor Expired - Lifetime US3102935A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH7867559A CH373800A (de) 1959-09-25 1959-09-25 Elektromagnetisches Luftschütz

Publications (1)

Publication Number Publication Date
US3102935A true US3102935A (en) 1963-09-03

Family

ID=4536639

Family Applications (1)

Application Number Title Priority Date Filing Date
US57441A Expired - Lifetime US3102935A (en) 1959-09-25 1960-09-21 Electromagnetic air contactor

Country Status (7)

Country Link
US (1) US3102935A (me)
BE (1) BE595196A (me)
CH (1) CH373800A (me)
DE (1) DE1161345B (me)
ES (1) ES261061A1 (me)
GB (1) GB899589A (me)
NL (1) NL254850A (me)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3238329A (en) * 1963-04-19 1966-03-01 Clark Controller Co Electric switch apparatus
US3324431A (en) * 1962-04-24 1967-06-06 Ite Circuit Breaker Ltd Electromagnetic contactor having interchangeable auxiliary devices
US3334319A (en) * 1965-08-20 1967-08-01 Ite Circuit Breaker Ltd Electro-magnetic contactor
US3727157A (en) * 1972-01-17 1973-04-10 Westinghouse Electric Corp Electric control device
US3748608A (en) * 1972-01-17 1973-07-24 Westinghouse Electric Corp Electric control device
US3781727A (en) * 1970-06-03 1973-12-25 Siemens Ag Electromagnetic switching device
US3970977A (en) * 1974-03-11 1976-07-20 Siemens Aktiengesellschaft Arrangement for mounting the non-switching magnet part
US20150015350A1 (en) * 2012-04-27 2015-01-15 Fuji Electric Co., Ltd. Electromagnetic switch

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2605150B1 (fr) * 1986-10-09 1988-12-30 Telemecanique Electrique Appareil electro-magnetique de commutation ayant des interrupteurs interchangeables

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2064632A (en) * 1935-09-26 1936-12-15 Gen Electric Electromagnetic switch
US2087895A (en) * 1934-07-16 1937-07-27 Square D Co Magnet construction for contactors
US2172633A (en) * 1939-09-12 Electric switch
US2855548A (en) * 1955-08-11 1958-10-07 Furnas Electric Co Magnetic switch assemblage
US2859302A (en) * 1956-06-14 1958-11-04 Arrow Hart & Hegeman Electric Electromagnet and magnetic switch mounting
US2896045A (en) * 1957-11-08 1959-07-21 American Nat Bank Relay with clamp-contact assembly
US3024335A (en) * 1958-10-28 1962-03-06 United Carr Fastener Corp Electrical assembly

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1665932U (de) * 1950-12-30 1953-10-29 Siemens Ag Gehaeuse fuer schuetze oder andere elektromagnetische schaltgeraete.
DE958487C (de) * 1952-03-04 1957-02-21 Licentia Gmbh Elektrisches Schaltgeraet, insbesondere elektromagnetisches Schuetz
DE1004701B (de) * 1954-05-11 1957-03-21 Siemens Ag Nockenschalter, insbesondere in Form eines Fahr- oder Steuerschalters fuer elektrische Fahrzeuge
DE1056235B (de) * 1957-12-23 1959-04-30 Licentia Gmbh Elektromagnetisch betaetigter Schalter

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2172633A (en) * 1939-09-12 Electric switch
US2087895A (en) * 1934-07-16 1937-07-27 Square D Co Magnet construction for contactors
US2064632A (en) * 1935-09-26 1936-12-15 Gen Electric Electromagnetic switch
US2855548A (en) * 1955-08-11 1958-10-07 Furnas Electric Co Magnetic switch assemblage
US2859302A (en) * 1956-06-14 1958-11-04 Arrow Hart & Hegeman Electric Electromagnet and magnetic switch mounting
US2896045A (en) * 1957-11-08 1959-07-21 American Nat Bank Relay with clamp-contact assembly
US3024335A (en) * 1958-10-28 1962-03-06 United Carr Fastener Corp Electrical assembly

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324431A (en) * 1962-04-24 1967-06-06 Ite Circuit Breaker Ltd Electromagnetic contactor having interchangeable auxiliary devices
US3238329A (en) * 1963-04-19 1966-03-01 Clark Controller Co Electric switch apparatus
US3334319A (en) * 1965-08-20 1967-08-01 Ite Circuit Breaker Ltd Electro-magnetic contactor
US3781727A (en) * 1970-06-03 1973-12-25 Siemens Ag Electromagnetic switching device
US3727157A (en) * 1972-01-17 1973-04-10 Westinghouse Electric Corp Electric control device
US3748608A (en) * 1972-01-17 1973-07-24 Westinghouse Electric Corp Electric control device
US3970977A (en) * 1974-03-11 1976-07-20 Siemens Aktiengesellschaft Arrangement for mounting the non-switching magnet part
US20150015350A1 (en) * 2012-04-27 2015-01-15 Fuji Electric Co., Ltd. Electromagnetic switch
US9673008B2 (en) * 2012-04-27 2017-06-06 Fuji Electric Co., Ltd. Electromagnetic switch

Also Published As

Publication number Publication date
CH373800A (de) 1963-12-15
ES261061A1 (es) 1960-11-16
BE595196A (fr) 1961-01-16
DE1161345B (de) 1964-01-16
NL254850A (me)
GB899589A (en) 1962-06-27

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