US3257524A - Double-break vacuum relay - Google Patents

Double-break vacuum relay Download PDF

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Publication number
US3257524A
US3257524A US325667A US32566763A US3257524A US 3257524 A US3257524 A US 3257524A US 325667 A US325667 A US 325667A US 32566763 A US32566763 A US 32566763A US 3257524 A US3257524 A US 3257524A
Authority
US
United States
Prior art keywords
envelope
bridge plate
relay
contact points
spaced
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
US325667A
Other languages
English (en)
Inventor
Frederick S Eggers
William D Escobar
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.)
Jennings Radio Manufacturing Corp
Original Assignee
Jennings Radio Manufacturing 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 Jennings Radio Manufacturing Corp filed Critical Jennings Radio Manufacturing Corp
Priority to US325667A priority Critical patent/US3257524A/en
Priority to GB48833/65A priority patent/GB1121497A/en
Priority to CH163266A priority patent/CH443489A/de
Priority to DE1966J0030218 priority patent/DE1257284B/de
Application granted granted Critical
Publication of US3257524A publication Critical patent/US3257524A/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
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
    • H01H33/6646—Contacts; Arc-extinguishing means, e.g. arcing rings having non flat disc-like contact surface
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/28—Relays having both armature and contacts within a sealed casing outside which the operating coil is located, e.g. contact carried by a magnetic leaf spring or reed

Definitions

  • This invention relates to electromagnetic relays and more particularly to improvements in vacuum relays.
  • One of the important objects of the present invention is to simplify the construction of such relays to reduce the cost of jigging and production.
  • Another object of the invention is the provision of a method of improving the radio frequency properties of transfer relays.
  • a still further object of the invention is the provision of a transfer relay possessing vibration, shock, life and reliability characteristics not heretofore achieved in transfer relays of equivalent design.
  • a still further object of the invention is the provision of a transfer relay capable of operation through at least 25 million operations.
  • the transfer relay of the invention comprises an hermetically sealed envelope into which extend a pair of axially aligned conductive members providing spaced contact points within the envelope and terminal leads outside the envelope.
  • a movable contact assembly is provided within the envelope movable to selectively make or break a circuit between the spaced contact points, and means are provided on the envelope to actuate the movable contact. Means are also provided within the envelope to limit movement of the movable contact upon actuation to break a circuit through the relay.
  • FIG. 1 is a vertical cross sectional view taken in the plane indicated by the line 1-1 in FIG. 2.
  • FIG. 2 is a horizontal sectional View of the relay taken in the plane indicated by the line 22 of FIG. 1.
  • FIG. 3 is a fragmentary view illustrating the movable contact in one of its extreme positions opposite to that shown in FIG. 2.
  • FIG. 4 is a fragmentary elevational view taken in the direction indicated by the arrow 4 in FIG. 1.
  • the present improvement over this conventional relay structure is directed to the elimination of the relationship between the slotted contact point and the cooperatively related movable contact or bridge plate,
  • the invention comprises a transfer relay including an electromagnetic actuating assembly 2 having a housing 3, a core member 4, and a coil 6 energized through terminals 7 and 8 to provide a magnetic circuit to which a pivoted armature 9 is responsive.
  • the dielectric envelope portion 12 is preferably fabricated from high dielectric strength glass, is symmetrical in shape and supports a pair of axially aligned conductive members 14 and 16 which respectively provide spaced contact points 17 and 18 within the envelope and terminal leads 19 and 21 outside the envelope. As shown best in FIGS. 2, 3 and 4, the conductive members 14 and 16 are diametrically opposed and hermetically sealed in the glass envelope portion.
  • the bridge plate preferably comprises a horizontally disposed U-shaped portion 23 the arms 24 of which are pivotally supported on 'a centrally disposed dielectric stern structure 26 resiliently mounted on the armature by means of a bracket 27 and stud shaft 28.
  • the bridge plate also includes oppositely disposed transversely extending lug portions 29 lying in the same plane but offset somewhat from the central axis of the relay as shown best in FIG. 3.
  • means are provided to insure that both lugs 29- will be disengaged from their associated contact points upon energization of the coil, thus providing a double gap and thereby increasing the applicable voltage limit by about twice that capable of being imposed on a single-gap relay.
  • Such means comprise a pair of substantially parallel or juxtaposed spaced stop members 32, preferably in the nature of dielectric posts extending transversely toward and associated with opposite ends of the bridge plate. This construction is shown best in FIGS. 2 and 3.
  • a relay comprising an envelope, a pair of axially aligned conductive members extending into the envelope to provide terminal leads outside the envelope and spaced contact points within the envelope, movable contact means within the envelope including a conductive bridge plate movable transversely with respect to said axially aligned pair of conductive members into and out of engagement with the spaced contact points to selectively make or break a circuit therethrough, and abutment means within the envelope apart from said movable contact means and against which the bridge plate impinges upon disengagement thereof from both spaced contact points.
  • a relay comprising an envelope, a pair of axially aligned conductive members extending into the envelope to provide terminal leads outside the envelope and spaced other free end normally disposed spaced from the associated end of the bridge plate.
  • the movable contact means comprises an armature movably mounted within the envelope, a support stern on the armature having a free end disposed adjacent the spaced fixed contact points, and the bridge plate is pivotally disposed on the stern adjacent the free end thereof.
  • the bridge plate includes a U-shaped mounting portion with oppositely disposed transversely extending lug portions lying in a comm-0n plane.
  • the movable contact means includes a dielectric rod portion, the U-shaped mounting portion of the bridge plate being pivotally supported on the rod, and the lug portions of the bridge plate are offset from the axis of the rod.
  • a relay comprising an envelope, a pair of axially aligned conductive members extending into the envelope to provide terminal leads outside the envelope and spaced contact points within the envelope, a movable contact assembly within the envelope including an armature, a
  • stem having one end resiliently mounted on the armature and its other free end disposed adjacent the spaced contact points, a conductive contact bridge plate pivotally supported adjacent the free end of the stem and movable thereby into and out of bridging relation with the spaced contact points to selectively make or break a circuit.
  • a vacuum relay having an envelope including a dielectric portion, spaced contact points within the envelope connected to terminal leads outside the envelope and a bridge plate'within the envelope movable into and out of engagement with both spaced contact points, the improvement comp-rising a pair of juxtaposed abutments within the envelope arranged to insure a double gap between the bridge plate and the spaced contact points when the bridge plate is moved to break a circuit through the relay.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Contacts (AREA)
US325667A 1963-11-22 1963-11-22 Double-break vacuum relay Expired - Lifetime US3257524A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US325667A US3257524A (en) 1963-11-22 1963-11-22 Double-break vacuum relay
GB48833/65A GB1121497A (en) 1963-11-22 1965-11-17 Improvement in electromagnetic relays
CH163266A CH443489A (de) 1963-11-22 1966-02-04 Elektromagnetisches Relais
DE1966J0030218 DE1257284B (de) 1963-11-22 1966-03-03 Vakuumrelais

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US325667A US3257524A (en) 1963-11-22 1963-11-22 Double-break vacuum relay

Publications (1)

Publication Number Publication Date
US3257524A true US3257524A (en) 1966-06-21

Family

ID=23268882

Family Applications (1)

Application Number Title Priority Date Filing Date
US325667A Expired - Lifetime US3257524A (en) 1963-11-22 1963-11-22 Double-break vacuum relay

Country Status (3)

Country Link
US (1) US3257524A (de)
CH (1) CH443489A (de)
GB (1) GB1121497A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3447107A (en) * 1965-12-02 1969-05-27 Jennings Radio Mfg Corp Ground-isolated electromagnetically operated vacuum relay
US3629746A (en) * 1970-05-04 1971-12-21 Torr Lab Inc Vacuum relay
US4331847A (en) * 1980-03-20 1982-05-25 Alsthom-Atlantique Apparatus for selectively connecting and disconnecting two sets of three-phase busbars via isolating switch means
EP0411213A1 (de) * 1989-08-03 1991-02-06 Siemens Aktiengesellschaft Vakuumrelais mit im Vakuumraum liegendem Schaltelement
US5268544A (en) * 1989-08-03 1993-12-07 Siemens Aktiengesellschaft Vacuum relay with a contact unit located in a vacuum

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2982836A (en) * 1960-02-15 1961-05-02 Jennings Radio Mfg Corp Vacuum switch
US3153131A (en) * 1958-08-27 1964-10-13 Gratzmuller Jean Louis Switch for large currents with one contact plastically deformable in proportion to current value

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3153131A (en) * 1958-08-27 1964-10-13 Gratzmuller Jean Louis Switch for large currents with one contact plastically deformable in proportion to current value
US2982836A (en) * 1960-02-15 1961-05-02 Jennings Radio Mfg Corp Vacuum switch

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3447107A (en) * 1965-12-02 1969-05-27 Jennings Radio Mfg Corp Ground-isolated electromagnetically operated vacuum relay
US3629746A (en) * 1970-05-04 1971-12-21 Torr Lab Inc Vacuum relay
US4331847A (en) * 1980-03-20 1982-05-25 Alsthom-Atlantique Apparatus for selectively connecting and disconnecting two sets of three-phase busbars via isolating switch means
EP0411213A1 (de) * 1989-08-03 1991-02-06 Siemens Aktiengesellschaft Vakuumrelais mit im Vakuumraum liegendem Schaltelement
US5268544A (en) * 1989-08-03 1993-12-07 Siemens Aktiengesellschaft Vacuum relay with a contact unit located in a vacuum

Also Published As

Publication number Publication date
CH443489A (de) 1967-09-15
GB1121497A (en) 1968-07-31

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