US3154653A - Center pivoted armature rotary relay - Google Patents

Center pivoted armature rotary relay Download PDF

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Publication number
US3154653A
US3154653A US173746A US17374662A US3154653A US 3154653 A US3154653 A US 3154653A US 173746 A US173746 A US 173746A US 17374662 A US17374662 A US 17374662A US 3154653 A US3154653 A US 3154653A
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United States
Prior art keywords
relay
armature
contacts
predetermined height
pole
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
US173746A
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English (en)
Inventor
Rowell James Henry
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.)
PHILLIPS ECKHARDT ELECTRONIC C
PHILLIPS-ECKHARDT ELECTRONIC Corp
Original Assignee
PHILLIPS ECKHARDT ELECTRONIC C
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Filing date
Publication date
Priority to GB1047464D priority Critical patent/GB1047464A/en
Application filed by PHILLIPS ECKHARDT ELECTRONIC C filed Critical PHILLIPS ECKHARDT ELECTRONIC C
Priority to US173746A priority patent/US3154653A/en
Application granted granted Critical
Publication of US3154653A publication Critical patent/US3154653A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature

Definitions

  • This invention relates to a miniature, compact rotary relay in which the parts are so designed as to provide compactness and thereby small size in order to produce a relay of minimum weight for missiles, airplanes and the like.
  • One object of the invention is to provide a relay header which has contacts on the top thereof which are so designed that space is provided among them for an armature pivot and the major portion of the armature itself, thereby eliminating the necessity of providing vertical space for the armature.
  • Another object is to provide a relay coil which occupies the space immediately above the contacts and armature, and which has pole pieces or L-shape lying in a horizontal plane to reduce the vertical space required therefor, such space being substantially the diameter or" the relay coil.
  • Still another object is to provide the relay coil at an angle in the housing of the relay, so that at diagonally opposite sides thereof adjacent the ends of the coil, space is provided for armature pads to be attracted toward the L-shaped pole pieces when the relay coil is energized.
  • a further object is to provide a relay assembly that includes a support for the relay coil and its pole pieces which minimizes the vertical space required for its installation, and additionally serves as a retainer for the armature when the relay is assembled.
  • Still a further object is to provide a return spring for the armature which also has a stop for the armature, the return spring being conveniently assembled by a spotwelding operation in relation to one of the pole pieces.
  • Still a further object is to provide components of a rotary relay so designed as to minimize space, weight and volume, which considerations are paramount in missiles and the like as long as proper operation of the relay can be assured.
  • An additional object is to provide a header with the usual contact pins but a novel design of contacts, armature and coil with its pole pieces so that these parts cooperate with each other for proper operation of the relay, yet may be confined in a housing much smaller than previous miniature relays of this general type.
  • FIG. 1 is a perspective view of a rotary relay embodying my invention and showing a full size illustration thereof.
  • FIG. 2 is an enlarged perspective view of the relay with the housing removed.
  • FIG. 3 is a plan view of FIG. 2.
  • FIG. 4 is a side elevation thereof.
  • FIG. 5 is an end elevation thereof with the relay housing shown in cross section.
  • FIG. 6 is a horizontal sectional view on the line 6-6 of FIG. 4 to show contact and armature details.
  • FIG. 7 is a vertical sectional view on the line '7-7 of FIG. 4 to show the relationship of armature and relay coil, and supporting and retaining means therefor.
  • FIG. 8 is a side elevation of the armature of the relay.
  • FIG. 9 is an end elevation thereof.
  • FIG. 10 is an exploded perspective view of the relay coil, the pole pieces, a supporting bracket and a return spring of my relay.
  • the header base It is of metal and the terminals 12 are insulated therefrom by molded insulation inserts 14 shown in FIG. 4 which is the usual construction for miniature relays of this general type.
  • the lower ends of the terminals 12 may be in the form of prongs as illustrated, the length of which may be varied from that shown if desired, or the lower ends formed into eyes for soldering leads thereto also in the usual manner.
  • a pair of normally closed contacts 16 and a pair of normally open contacts 18 are provided in the form of leaf springs soldered to six of the terminals 12 as shown.
  • the remaining two terminals have relay coil leads 22 soldered thereto, the relay coil being shown at 24 in FIG. 10. These two terminals accordingly supply the control current to the relay coil whereas the other six terminals are for appropriate controlled circuits.
  • the leaf springs 16, 18 and 29 are bent to the shapes llustrated to provide among them space for an armature 24 pivoted on a pin 26 which is brazed into the header base It) and thereby rigidly positioned relative thereto.
  • the armature 24 is S-shaped so as to pivot a few degrees, and its ends terminate in upwardly projecting rectangular pads 28 as shown in FIGS. 8 and 9.
  • the ends of the armature are indicated 39 in FIG. 8 and it will be noted are narrow enough to operate with freedom beveen the adjacent terminals 12.
  • the armature is so shaped as to be of substantially equal cross sectional area throughout its length to insure full and eflicient utilization of the magnetic field, and may be formed of sintered ferrous material. Its odd shape also permits it to clear the relay coil, the contacts and the terminals of the relay.
  • Solder-ed or welded to the pads 28 are actuating rods 32 terminating in glass beads 34 adapted to engage the contact blades 26) and move them from the contacts 16 to the contacts 18 when the armature is rotated counter-clockwise in FIG. 6.
  • FIG. 7 shows the armature 24 in cross-section at the pivot pin 26.
  • Teflon washers 36 and 38 encircle the pivot pin 2d and are located above and below the armature.
  • a supporting bracket is provided having a perforated, trough-like upper portion, a pair of sides 44 and each side provided with a plurality of arms 46, 4S and 50.
  • the arms 5% are spotwelded in notches S2 of the header base it) whereby the bracket is mounted with respect to the base.
  • the supporting bracket it supports a pair of L-shaped pole pieces 54 and a core 56 on which the relay coil 24 is wound.
  • the pole pieces are provided with notches 58 and 6b which receive the arms 46 and 43 of the supporting bracket ill, and are held assembled relative thereto by spotwelding as illustrated in FIG. 2.
  • An armature return spring 62 is provided, and is of such shape that it also provides an armature stop 64. As shown in FIGS. 3 and 4 the spring 62 is spotwelded as at 66 against a shoulder 68 on one of the pole pieces which are also made of sintered ferrous material. Thus a simple stamping serves both as a return spring for the armature and a stop therefor, the armature being returned by the spring engaging one of its pads 28 against the stop 64 as shown in FIG. 3.
  • the armature 24 By nesting the armature 24 among the contacts 16, 118 and 2th and having its ends operate between certain of the terminals 12 as illustrated, all within substantially the height of the relay coil 24 represented by its diameter, the size of the relay is minimized.
  • the pole pieces and the pads 28 of the armature 24! are so located as to eliminate requiring separate height dimensions for these particular elements of the relay.
  • the total height thereof is less than one-half the usual height of this general type of relay and may be enclosed within a housing 70 likewise of small height.
  • the housing 70 is usually soldered around its lower edge to the header base 10 whereby a hermetically sealed relay unit is provided to exclude dust, moisture and the like that might cause malfunctioning of the relay. 7
  • the single stamping 6264 provides an integral return spring and stroke positioner.
  • the relay can be reduced to substantially half size because of the features disclosed.
  • a header comprising a header base and terminals mounted therethrough, contacts on said terminals within a predetermined height above said base, i
  • an armature within substantially said predetermined height and pivoted centrally among said contacts, said armature being S-shaped and provided with pole pads within a second predetermined height projecting above said first predetermined height, a relay coil and L-shaped pole pieces therefor within said second predetermined height, said pole pieces extending around diagonally 0pposite corners of said relay, a core for said relay coil at an angle from pole piece to pole piece to provide space between diagonally opposite sides of said coil and the poles of said pole pieces in which said pole pads may operate, and means carried by said armature for operating said contacts.
  • a header base terminals extending upwardly therefrom, contacts on said terminals within a predetermined height above said base, a pivoted armature within substantially said predetermined height, said armature being provided with pole pads within a second predetermined height above.
  • said first predetermined height a relay coil and L-shaped pole pieces therefor within said second predetermined height, said pole pieces extending around diagonally opposite corners of said relay, a core for said relay coil extending from pole piece to pole piece, means carried by said armature for operating said contacts, a supporting bracket for said pole pieces and said relay coil having arms connected with said pole pieces and with said base, and having a cross member for retaining said armature against said header base.
  • a header comprising a header base and terminals mounted; therethrough, contacts on said terminals within a predetermined height above said base, an armature Within substantially said predetermined height, a pivot pin mounted in said header base and extending through said armature, said armature being ta-shapedand provided with pole pads within a second predetermined height projecting above saidfirst predetermined height, a relay coil and L-shaped pole pieces therefor .within said second predetermined height, said pole pieces extending around diagonally opposite corners of said relay, a core for said relay coil atan angle from pole piece to pole piece to provide space between.
  • a header comprising a header base and terminals mounted therethrough, a pivot pin located centrally among said contacts, carried by said header base and projecting upwardly therefrom, contacts on said terminals within a predetermined height above said base, an armature within substantially said predetermined height and pivoted on said pivot pin, said armature being S-shaped and provided with pole pads Within a second predetermined height above said first predetermined height, a relay coil and L -shaped pole pieces therefor Within said second predetermined height, said pole pieces extending I around diagonally opposite corners of said relay, a core for said relay coil at an angle.
  • pole piece from pole piece to pole piece to provide space between diagonally opposite sides of said coil andthe poles of said pole pieces in which said, pole pads may operate, means carried by said armature for operating said contacts, and a supporting bracket having a cross member for retaining. said armature with respect to said header base.
  • a relay as claimed in claim land a combinedarmature return spring and stop mounted on one of said pole pieces andcomprisinga member having a leaf spring blade engaging one side of one of said pole pads. to normally bias said armature in one direction and'having a stop'for said pole padonthe other side thereof.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
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US173746A 1962-02-16 1962-02-16 Center pivoted armature rotary relay Expired - Lifetime US3154653A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1047464D GB1047464A (enrdf_load_stackoverflow) 1962-02-16
US173746A US3154653A (en) 1962-02-16 1962-02-16 Center pivoted armature rotary relay

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US173746A US3154653A (en) 1962-02-16 1962-02-16 Center pivoted armature rotary relay

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US3154653A true US3154653A (en) 1964-10-27

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3253096A (en) * 1963-08-30 1966-05-24 American Mach & Foundry Miniature electromagnetic relay and mounting bracket arrangement therefor
US3258556A (en) * 1963-05-13 1966-06-28 Babcock Electronics Corp Electromagnetic actuator and relay comprising same
US3260817A (en) * 1963-10-23 1966-07-12 Comar Electric Company Electromagnetic relay
US3329791A (en) * 1965-06-01 1967-07-04 Leach Corp Integral terminal pin contact structure for relays
US3416225A (en) * 1963-10-18 1968-12-17 Welch Relay Company Inc Method of assembling a relay
US3518588A (en) * 1968-06-04 1970-06-30 Westinghouse Air Brake Co Microminiature relay
US4075402A (en) * 1976-01-22 1978-02-21 Shinobu Okamoto Apparatus for holding battery

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1104077A (en) * 1912-11-30 1914-07-21 Western Electric Co Electromagnetic circuit-controlling device.
US2506792A (en) * 1945-05-21 1950-05-09 Marie Yuhas Magnetically operated switch
US2993150A (en) * 1958-09-15 1961-07-18 Kenneth C Johnson Relay construction
US3013136A (en) * 1959-02-12 1961-12-12 Fligue Wladimir De Electromagnetic relay

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1104077A (en) * 1912-11-30 1914-07-21 Western Electric Co Electromagnetic circuit-controlling device.
US2506792A (en) * 1945-05-21 1950-05-09 Marie Yuhas Magnetically operated switch
US2993150A (en) * 1958-09-15 1961-07-18 Kenneth C Johnson Relay construction
US3013136A (en) * 1959-02-12 1961-12-12 Fligue Wladimir De Electromagnetic relay

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3258556A (en) * 1963-05-13 1966-06-28 Babcock Electronics Corp Electromagnetic actuator and relay comprising same
US3253096A (en) * 1963-08-30 1966-05-24 American Mach & Foundry Miniature electromagnetic relay and mounting bracket arrangement therefor
US3416225A (en) * 1963-10-18 1968-12-17 Welch Relay Company Inc Method of assembling a relay
US3260817A (en) * 1963-10-23 1966-07-12 Comar Electric Company Electromagnetic relay
US3329791A (en) * 1965-06-01 1967-07-04 Leach Corp Integral terminal pin contact structure for relays
US3518588A (en) * 1968-06-04 1970-06-30 Westinghouse Air Brake Co Microminiature relay
US4075402A (en) * 1976-01-22 1978-02-21 Shinobu Okamoto Apparatus for holding battery

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