US3681719A - Electrical switch - Google Patents

Electrical switch Download PDF

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Publication number
US3681719A
US3681719A US133498A US3681719DA US3681719A US 3681719 A US3681719 A US 3681719A US 133498 A US133498 A US 133498A US 3681719D A US3681719D A US 3681719DA US 3681719 A US3681719 A US 3681719A
Authority
US
United States
Prior art keywords
pins
arm
leg
coil
switch
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
US133498A
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English (en)
Inventor
John Philip Treschitta
Ralph Edmond Perusse
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.)
JOSLYN DEFENSE SYSTEMS Inc A CORP OF
Bunker Ramo Corp
Original Assignee
Bunker Ramo 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 Bunker Ramo Corp filed Critical Bunker Ramo Corp
Application granted granted Critical
Publication of US3681719A publication Critical patent/US3681719A/en
Assigned to ALLIED CORPORATION A CORP. OF NY reassignment ALLIED CORPORATION A CORP. OF NY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: BUNKER RAMO CORPORATION A CORP. OF DE
Assigned to JOSLYN DEFENSE SYSTEMS, INC., A CORP OF DE reassignment JOSLYN DEFENSE SYSTEMS, INC., A CORP OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ALLIED CORPORATION A NY CORP
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
    • H01H50/54—Contact arrangements
    • H01H50/546—Contact arrangements for contactors having 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/10—Auxiliary devices for switching or interrupting
    • H01P1/12—Auxiliary devices for switching or interrupting by mechanical chopper
    • H01P1/125—Coaxial switches
    • 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
    • H01H50/641—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement

Definitions

  • Arbuckle [22] Filed: April 13, 1971 57 ABSTRACT [21] Appl. No.: 133,498 1
  • An improved clapper arm is pivotally mounted on a frame that is secured to a coil for actuating an electri- [52] ES. (il cal Switch The clapper arm is provided with indepem 333/97 7 dent fingers for depressing two pins of the switch.
  • RF coaxial switches are used for transmit-receive switches to switch a single antenna between transmitter and receiver and for other RF signal transfer purposes.
  • VSWR Voltage Standing Wave Ratio
  • RF voltage and RF power handling capabilities While this problem may to some extent be overcome by the use of electronic devices such as semiconductor diodes, ionizable electron tubes and various breakdown devices as the switching elements, mechanical switches are still preferable in many instances.
  • SUMMARY OF THE INVENTION clapper arm is pivotally mounted on the other leg of the support frame and is provided with two elongated, centrally located and tandemly arranged fingers that are arranged to bear against pins which carry the switch contact blades.
  • the opposite end of the improved clapper arm is in closely spaced opposition to a coil so as to be angularly displaced when the coil is energized.
  • the two fingers of the improved clapper arm that are displaced by the armature of the solenoid may be adjusted to compensate for manufacturing and assembly tolerances merely by bending, as required after assembly.
  • an object of the present invention to provide an improved electrical switch, and in particular, an improved radio frequency coaxial switch.
  • a further object of the invention is to provide a construction for an RF coaxial switch which permits the use of a coil in place of a solenoid.
  • a feature of the present invention is that the rocker arm and the spring biasing means therefor, such as have been used in the prior art, have been eliminated.
  • An advantage of the present invention is the relatively simple adjustment of the clapper arm as regards the pins that support the switch contact blades.
  • FIG. 1 is a fragmentary side elevational view, partially in section, illustrating the components comprising the present invention.
  • FIG. 2 is an exploded perspective view of the improved clapper arm comprising the present invention together with the coil mounted frame that supports the clapper arm.
  • FIG. 3 is a plain view of the support frame and clapper arm shown in FIG. 2.
  • FIG. 4 is a transverse, elevational sectional view taken along line 4-4 of FIG. 3.
  • FIG. 5 is a longitudinal, sectional view taken along line 5-5 of FIG. 3, with the clapper arm also shown in phantom outline in an alternate position.
  • FIG. 1 of the drawing there is shown a single pole, double-throw coaxial switch 10 comprising the present invention.
  • the switch 10 includes a support base 12 and three, coaxial connectors l4, l6 and 18, which are secured to the base 12 such as by a threaded connection, for example.
  • the central terminals 20, 22 and 24 of the connectors l4, l6 and 18, respectively, extend through openings 26, 28 and 30, respectively.
  • An elongated cavity 32 is formed in the upper surface of the support base 12 with the free end of each of the terminals 20, 22 and 24 being located in the cavity 32.
  • the dimensions of the chamber 32 are such that it fonns a wave guide below cut-off with a principal wave guide mode in the operating frequency range of switch 10. Reference may be had to the copending application mentioned above for a fuller discussion of the dimensions of the cavity 32 as well as the operating parameters of the switch 10.
  • a cover plate 34 that is suitably secured to the top surface of the support base 12, is provided with an elongated recess 36 that is in opposition to the cavity 32.
  • a pair of counterbored holes 38 are formed in tandem along the longitudinal axis of the cover plate 34.
  • Pins 40a and 40b extend slidably through the counterbored holes 38 with the heads of the pins 40a and 40b being positioned above the cover plate 34.
  • Compression springs 42a and 42b are positioned in the counterbored holes 38 about the shanks of the pins 40a and 40b and beneath the heads thereof so as to normally bias the pins 40a and 40b in an upward direction.
  • switch contact blades 44a and 44b respectively, secured thereto in any suitable manner.
  • One switch contact blade 44a spans the terminals 20 and 22 while the adjacent switch contact blade 44b spans the terminals 22 and 24.
  • Connector 16 is a common connector which is connected altematively to either connectors 14 and 18, by the switch 10.
  • the cover plate 34 is also formed with integral support pads 46 and 48 to which is mounted one leg of an L-shaped support frame 50.
  • a coil 52 is secured to the other leg of the L-shaped support frame 50 by means of a screw 56.
  • the coil 52 is comprised of a bobbin 58 about which is wound an insulated wire coil generally designated by the reference character 60.
  • a leaf spring 62 is captured between one end flange of the bobbin 58 and the leg of the L-shaped support frame 50 through which the screw 56 extends.
  • the L-shaped support frame 50 includes a first leg 64 having a counter-sunk hole 66 through which the screw 56 extends.
  • the second leg 68 of the support frame 50 includes several holes 70 that accommodate screws (not shown) by which the support frame 50 is mounted to the support pads 46 and 48.
  • the free end of the leg 68 is provided with a pair of opposed, laterally extending tabs 72 that are bent downwardly to the position shown in phantom outline in FIG. 2 and in solid outline in FIGS. 3, 4 and 5 during the assembly procedure. Holes 74 are formed during the stamping operation in each of the tabs 72.
  • a clapper arm generally designated by the reference character 76 is mounted on the L-shaped frame utilizing the downwardly bent tabs 72.
  • the clapper member 76 comprises a plate 78 which is normally in spaced opposition to the coil 50.
  • a leg 80 extends outwardly from the plate 78 and terminates in a transverse shaft 82.
  • the tabs 72 are bent downwardly so that the outward ends of the shaft 82 are joumaled therein utilizing the holes 74 for this purpose.
  • a first finger 84 extends outwardly from the plate 78 and a second finger 86 extends outwardly from the transverse shaft 82 in tandem, colinear relationship with the finger 84. As shown in FIG. 1, the first finger 84 is positioned over the top of the pin 40b while the second finger 86 is positioned over the top of the pin 40a.
  • the free end of the leaf spring 62 bears downwardly against the upper surface of the first finger 84 to bias clapper arm 76 in the position shown in FIG. 1. It is apparent that, the spring could also bear against arm in addition to or instead of finger 84, that a coil spring could be substituted for the leaf spring 62, or that some other suitable biasing means could be provided for the clapper arm.
  • the clapper arm 76 When the coil 52 is energized, the clapper arm 76 is pulled in a direction towards the coil and thus overcomes the force of the leaf spring 62. The clapper arm 76 pivots in a counter-clockwise direction about the shaft 82. The finger 86 thereby depresses the pin 40a working against the force of the spring 42a and thereby brings switch contact blade 44a into electrical contact with the terminals 20 and 22 of connectors 14 and 16, respectively. When the clapper arm 76 pivots in the counter-clockwise direction as just described, it will move away from the pin 40b so that the spring 42b will urge the pin 40b in an upward direction, thus moving the switch contact blade 44b from the terminals 22 and 24 of the connectors 16 and 18, respectively. When the coil 52 is de-energized, the leaf spring 62 will urge the clapper arm 76 in a clockwise direction and thus return it to the position shown in FIG. 1.
  • the switch 10 has been referred to as a coaxial switch and the inputs as coaxial connectors, in the discussion heretofore, the inputs could, in fact, be in the form of coaxial lines and cables, parallel plate lines, strip lines, microstrip, wave guide or any other acceptable transmission line for microwave energy.
  • coaxi is thus being used as a generic term for the type of switch involved.
  • the improved clapper arm configuration of this invention might also find application in electrical switches utilized for DC. and selected A.C. applications.
  • An electrical switch having a coil and two contactcontrolling pins, both of which are normally biased to a first position, one of said pins being moved to a second position when said coil is energized, and the other of said pins being moved to said second position when said coil is de-energized, characterized by:
  • a clapper arm having a first leg with two independently cantilevered fingers, positioned in tandem collinearly with the pins, each of which is adapted to bear against a corresponding one of said pins to move the pin to its second position, and a pivot shaft positioned between said fingers and at substantially right angle thereto;
  • a switch of the type described in claim 1 including a leaf spring for biasing said arm to move to other of said pins the said second position when said coil is deenergized.
  • a switch of the type described in claim 1 including a frame fixed at one end to said switch and including means at the other end for pivotally supporting the pivot shaft of said clapper arm.
  • said pivotally supporting means is a pair of laterally spaced tabs having coaxially aligned openings therein, the ends of said pivot shaft being joumaled in the aligned openings of said tabs.
  • a clapper arm pivotally mounted on said support frame and responsive to the energizing of the actuation means, said clapper arm including means for exerting a force directly on the pin means to move the contact blade means between the first and second positions, said force exerting means of said clapper arm comprising a first finger posigifnii iin r osiiiii ?8asoS an &i.e r one of the pins, said first and second fingers being positioned in tandem, collinearly with the pins.
  • said support frame is substantially L-shaped and includes a pair of laterally spaced tabs at one end thereof, said tabs having coaxially aligned openings therein, said clapper arm being substantially L-shaped and having a transverse shaft integral with one leg thereof, the ends of said shaft being joumaled in the aligned openings of said tabs.
  • said spring is a leaf spring having one end secured to said frame.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Tumbler Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)
US133498A 1971-04-13 1971-04-13 Electrical switch Expired - Lifetime US3681719A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13349871A 1971-04-13 1971-04-13

Publications (1)

Publication Number Publication Date
US3681719A true US3681719A (en) 1972-08-01

Family

ID=22458888

Family Applications (1)

Application Number Title Priority Date Filing Date
US133498A Expired - Lifetime US3681719A (en) 1971-04-13 1971-04-13 Electrical switch

Country Status (13)

Country Link
US (1) US3681719A (xx)
AT (1) AT314020B (xx)
BE (1) BE781980A (xx)
CA (1) CA940176A (xx)
CH (1) CH546007A (xx)
DE (1) DE2215855A1 (xx)
FR (1) FR2132874A1 (xx)
GB (1) GB1379817A (xx)
IL (1) IL39057A (xx)
IT (1) IT950791B (xx)
NL (1) NL7204481A (xx)
SE (1) SE369799B (xx)
ZA (1) ZA722103B (xx)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2499309A1 (fr) * 1981-01-30 1982-08-06 Omron Tateisi Electronics Co Commutateur et relais electriques en particulier pour la commutation de signaux haute frequence
FR2522195A1 (fr) * 1982-02-24 1983-08-26 Micronde Sa Relais coaxial inverseur hyperfrequence
US4496806A (en) * 1981-01-30 1985-01-29 Omron Tateisi Electronics Co. Electric contact switching device
WO1985004764A1 (en) * 1984-04-09 1985-10-24 Hughes Aircraft Company Air-line microwave coaxial reversing switch
EP0163497A2 (en) * 1984-05-28 1985-12-04 Nec Corporation Mechanical high-speed microwave switch
GB2246663A (en) * 1989-02-28 1992-02-05 Victor Nelson Magnetic switch for coaxial transmission lines
USRE34642E (en) * 1981-01-30 1994-06-21 Omron Tateisi Electronics Co. Electric contact switching device
US5712603A (en) * 1996-08-09 1998-01-27 Kmw Usa, Inc. Multipole multiposition microwave switch with a common redundancy
WO2000016355A1 (en) * 1998-09-11 2000-03-23 Teledyne Industries, Inc. Microwave switch contact interface
US6133812A (en) * 1998-05-21 2000-10-17 Relcomm Technologies, Inc. Switching relay with magnetically resettable actuator mechanism
US6211756B1 (en) * 1998-11-06 2001-04-03 Teledydne Industries, Inc. Electromechanical relay and method of matching the impedance of the relay with the impedance of a signal source
US20080283379A1 (en) * 2007-05-18 2008-11-20 Teledyne Technologies Incorporated Coaxial switch with reduced tribo-electric charge accumulation
US20090273420A1 (en) * 2008-05-05 2009-11-05 Teledyne Technologies Incorporated Electromagnetic switch

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2926318A (en) * 1956-06-26 1960-02-23 Electronic Specialty Co Miniature co-axial switch
US2941164A (en) * 1957-01-18 1960-06-14 Electronic Specialty Co Manual co-axial switch
US3131268A (en) * 1962-03-14 1964-04-28 Electronic Specialty Company Electromagnetic coaxial switch
US3414849A (en) * 1966-05-16 1968-12-03 Microwave Ass Radio frequency coaxial switches
US3439298A (en) * 1965-10-22 1969-04-15 Herbert D Steinback Radio frequency shielded switch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2926318A (en) * 1956-06-26 1960-02-23 Electronic Specialty Co Miniature co-axial switch
US2941164A (en) * 1957-01-18 1960-06-14 Electronic Specialty Co Manual co-axial switch
US3131268A (en) * 1962-03-14 1964-04-28 Electronic Specialty Company Electromagnetic coaxial switch
US3439298A (en) * 1965-10-22 1969-04-15 Herbert D Steinback Radio frequency shielded switch
US3414849A (en) * 1966-05-16 1968-12-03 Microwave Ass Radio frequency coaxial switches

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE34642E (en) * 1981-01-30 1994-06-21 Omron Tateisi Electronics Co. Electric contact switching device
US4496806A (en) * 1981-01-30 1985-01-29 Omron Tateisi Electronics Co. Electric contact switching device
FR2499309A1 (fr) * 1981-01-30 1982-08-06 Omron Tateisi Electronics Co Commutateur et relais electriques en particulier pour la commutation de signaux haute frequence
FR2522195A1 (fr) * 1982-02-24 1983-08-26 Micronde Sa Relais coaxial inverseur hyperfrequence
EP0087372A1 (fr) * 1982-02-24 1983-08-31 MICRONDE, Société Anonyme dite: Relais inverseur hyperfréquence à contacts coaxiaux
WO1985004764A1 (en) * 1984-04-09 1985-10-24 Hughes Aircraft Company Air-line microwave coaxial reversing switch
EP0163497A3 (en) * 1984-05-28 1986-08-27 Nec Corporation Mechanical high-speed microwave switch
EP0163497A2 (en) * 1984-05-28 1985-12-04 Nec Corporation Mechanical high-speed microwave switch
GB2246663A (en) * 1989-02-28 1992-02-05 Victor Nelson Magnetic switch for coaxial transmission lines
GB2246663B (en) * 1989-02-28 1994-08-17 Victor Nelson Magnetic switch for coaxial transmission lines
US5712603A (en) * 1996-08-09 1998-01-27 Kmw Usa, Inc. Multipole multiposition microwave switch with a common redundancy
US6133812A (en) * 1998-05-21 2000-10-17 Relcomm Technologies, Inc. Switching relay with magnetically resettable actuator mechanism
WO2000016355A1 (en) * 1998-09-11 2000-03-23 Teledyne Industries, Inc. Microwave switch contact interface
US6043440A (en) * 1998-09-11 2000-03-28 Teledyne Industries, Inc. Microwave switch contact interface
US6211756B1 (en) * 1998-11-06 2001-04-03 Teledydne Industries, Inc. Electromechanical relay and method of matching the impedance of the relay with the impedance of a signal source
US20080283379A1 (en) * 2007-05-18 2008-11-20 Teledyne Technologies Incorporated Coaxial switch with reduced tribo-electric charge accumulation
US20090273420A1 (en) * 2008-05-05 2009-11-05 Teledyne Technologies Incorporated Electromagnetic switch
US7876185B2 (en) 2008-05-05 2011-01-25 Teledyne Technologies Incorporated Electromagnetic switch

Also Published As

Publication number Publication date
SE369799B (xx) 1974-09-16
DE2215855A1 (de) 1972-10-19
IL39057A (en) 1974-12-31
GB1379817A (en) 1975-01-08
AT314020B (de) 1974-02-15
CH546007A (xx) 1974-02-15
BE781980A (fr) 1972-07-31
FR2132874A1 (xx) 1972-11-24
ZA722103B (en) 1972-12-27
CA940176A (en) 1974-01-15
IT950791B (it) 1973-06-20
IL39057A0 (en) 1972-05-30
NL7204481A (xx) 1972-10-17

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AS Assignment

Owner name: ALLIED CORPORATION COLUMBIA ROAD AND PARK AVENUE,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:BUNKER RAMO CORPORATION A CORP. OF DE;REEL/FRAME:004149/0365

Effective date: 19820922

AS Assignment

Owner name: JOSLYN DEFENSE SYSTEMS, INC., 1820 SHELBOURNE ROAD

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ALLIED CORPORATION A NY CORP;REEL/FRAME:004432/0812

Effective date: 19850614