US3525958A - Poled miniature relay with two-bladed pivoted armature - Google Patents

Poled miniature relay with two-bladed pivoted armature Download PDF

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Publication number
US3525958A
US3525958A US779895A US3525958DA US3525958A US 3525958 A US3525958 A US 3525958A US 779895 A US779895 A US 779895A US 3525958D A US3525958D A US 3525958DA US 3525958 A US3525958 A US 3525958A
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United States
Prior art keywords
armature
contact elements
relay
poled
magnetic
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
US779895A
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English (en)
Inventor
Ulf Rauterberg
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Siemens AG
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Siemens AG
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Filing date
Publication date
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Publication of US3525958A publication Critical patent/US3525958A/en
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Classifications

    • 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
    • H01H51/284—Polarised relays
    • 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
    • H01H51/288—Freely suspended contacts

Definitions

  • This invention relates to electromagnetic switching devices and is particularly directed to an electromagnetic relay having a floating or pivoting armature.
  • a poled miniature relay in which a- V-shaped pivoted armature is positioned with its ends disposed between contact elements which are arranged in contact pairs aligned diagonally with respect to oneanother, the armature being used for both flux guidance and electrical circuit completion functions.
  • the armature is positioned between the contacts in a oating relation thereto so that the armature is without any physical bearing and is therefore free of friction, the resting position, or positions, of the armature being achieved by premagnetization of the/ magnetically conductive contact elements by a plurality of permanent magnets which are located between fparallel extending pairs of Contact elements, the elements being ⁇ of different electrical circuits.
  • the construction of a relay in accordance with the principles of the present invention is also simplified by the fact that the Contact elements are also used for guiding the magnetic flux. Consequently, the number of individual components needed for such a miniature relay is particularly small. Also, the shaping of the magnetically conductive individual components such as contact elements and armatures, is provided in a manner that these elements can be produced by bending and/or stamping operations.
  • the polarizing permanent magnets needed for achieving a poled operating behavior of a relay in accordance with the present invention can be synchronized accordingly for the adjustment of the desired response energization by subjecting these permanent magnets to a partial demagnetization. Such demagnetizations can be provided after the relay has been completely assembled so that a plurality of relays of a single construction may each undergo different partial demagnetization to provide, with a single relay construction, a plurality of relay products.
  • a preferred embodiment of the invention provides a pair of permanent magnets of identical polarization, each of which is inserted in a locking engagement between the I contact element of dilferent electrical circuits. Furthermore, at least one contact element of a magnetic circuit pair is bent so that one of its surfaces will mate with a corresponding contact surface of the armature in a parallel relation while at the same time the V-shaped of the armature provides for a similar parallel mating relation with the other contact of the same magnetic circuit.
  • the forms of the armature and two of the contact elements therefore provide a most favorable mating of surfaces and a guiding of ux between the elements of the electric and magnetic circuits.
  • the poled relay it is advantageous to employ an energizing lield which is operative axially of the relay whereby the energizing eld is reversible by reversing the exciting current for switching the armature from resting position to the other resting position. It is also advantageous to locate the relay system within a housing or protective tube.
  • a relay is shown as comprising contact elements 2, 3, 4 and 5 which are arranged in electrical and magnetic pairs within a protective tube 9.
  • Contact elements 2 and S are provided for a first electrical circuit and contact elements 3 and 4 are provided for a second electrical circuit.
  • Contact elements 2 and 3 are also provided to form a first magnetic circuit along with permanent magnet 6 which is disposed therebetween and which is electrically insulative between elements 2 and 3.
  • the magnetic fiux provided in each magnetic circuit for polarizing the relay is referenced QD. This polarizing flux is seen to traverse the corresponding magnetic circuits and the air gap between, for example, the bent section of element 2 and the adjacent end section of element 3.
  • a V-shaped armature 1 is positioned in the air gaps between contact elements 2, 3, 4 and 5 with its ends 1a and 1b forming pairs of contacts at its upper and lower surfaces, these ends 1a and 1b being positioned between contact elements 4, y5 and 2, 3, respectively. It can easily be determined from the above description and the drawing that the relay is constructed in symmetry and that the elements thereof form a mirror image about the center of gravity of the armature 1.
  • the possible resting positions of the pivoted armature 1 are such that the diagonally opposite contact elements 2, 5; 3, 4) are connected electrically and magnetically which establishes third and fourth magnetic circuits.
  • an adhesive effect of being determined by the field strength of the possible rest positions the magnitude of the adhesive effect of being determined by the field strength of the permanent magnets 6 and 7.
  • the effective fluxes resulting by an operational superposition of permanent flux and exciting flux @E are shown in the drawing, the exciting flux @E being completed through air around the exciting winding 8.
  • the pivoted armature 1 lifts off at both ends 1a and 1b and rotates about its center of gravity, and without the aid of any mechanical supporting structure, into the other resting position.
  • the reversal of the pivoted armature 1 in either case, and thus the distribution of flux in the operating air gaps, is determined by the polarization of the operating voltage effective at the exciting winding 8. If the permanent magnets 6 and 7 have identical field strengths, the pivoted armature 1 correspondingly also has a symmetric switching behavior for both resting positions. If, however, a single resting position is to be provided for the pivoted armature 1, additional permanent magnets may be provided on a selected side of the relay.
  • the invention contemplates the provision of a step whereby finished relays of a single construction may be transformed into a plurality of relays each having a separate response value by applying to each of these relays a different magnetic field for partial demagnetization of the permanent magnets to different selected values.
  • a poled relay having at least four generally parallel spaced-apart contact elements each having upper and lower surfaces, the contact elements being further spaced-apart in pairs in an end-to-end relation, wherein diagonally related ones of said contact elements are provided to complete or open a corresponding electrical circuit, an armature for completing or opening the electrical circuits and at least one permanent magnet for providing at least one polarized resting position for said armature, the improvement comprising the provision of said contact elements and said armature as magnetically conductive members, and wherein two of the endtoend elements include end sections which extend toward their diagonal counterpart contact elements, said armature including an upper surface and a lower surface and a profile wherein its surfaces are parallel to the corresponding lower and upper surfaces of said diagonally associated contact elements when said armature is in contact therewith, and wherein said armature is suspended in operable relation to the remainder of the components of the relay only by the magnetic field of said permanent magnet.
  • a polarized electromagnetic relay comprising: at least four spaced-apart electrically and magnetically conductive contact elements each having a first end and a second end, a first and a third of said contact elements generally parallel to and having their first ends directed towards the corresponding first ends of a second and a fourth of said contact elements, respectively; at least one permanent magnet disposed between two of said contact elements; an armature disposed adjacent said first ends and pivotally supported by the magnetic force of said permanent magnet, said armature being V-shaped and including upper and lower contact surfaces which are parallel to the first ends of said contact elements when said armature is in contact therewith; and means for providing magnetic fields for pivoting said armature to electrically connect selected ones of said contact elements.
  • a polarizedl electromagnetic relay comprising: at least four spaced-apart electrically and magnetically conductive contact elements each havin-g a first and a second end, a first and a third of said contact elements disposed in a substantially end-to-end relation with a second and a fourth of said contact elements; at least one permanent magnet disposed between two of said contact elements; an armature disposed adjacent said first ends and pivotally supported by the magnetic force of said permanent magnet and operatively pivotable to connect diagonally opposite ones of said contact elements; and means for providing magnetic fields for pivoting said armature to electrically connect selected ones of said contact elements.
  • a polarized electromagnetic relay comprising: at least four spaced-apart electrically and magnetically conductive contact elements each having a first end and a second end; a first permanent magnet disposed between two of said contact elements and a second permanent magnet disposed between the other two of said contact elements, said permanent magnets disposed with the same polarity and having different field strengths; an armature disposed adjacent said first ends and pivotally supported by the magnetic force of said permanent magnets; and means for providing magnetic fields for pivoting said armature to electrically connect selected ones of said contact elements.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Magnetic Treatment Devices (AREA)
US779895A 1967-12-04 1968-11-29 Poled miniature relay with two-bladed pivoted armature Expired - Lifetime US3525958A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19671614672 DE1614672B2 (de) 1967-12-04 1967-12-04 Gepoltes relais mit zweifluegeligem drehanker
DES0113138 1967-12-04

Publications (1)

Publication Number Publication Date
US3525958A true US3525958A (en) 1970-08-25

Family

ID=25753709

Family Applications (1)

Application Number Title Priority Date Filing Date
US779895A Expired - Lifetime US3525958A (en) 1967-12-04 1968-11-29 Poled miniature relay with two-bladed pivoted armature

Country Status (6)

Country Link
US (1) US3525958A (xx)
BE (1) BE724894A (xx)
CH (1) CH479948A (xx)
DE (1) DE1614672B2 (xx)
FR (1) FR1594064A (xx)
GB (1) GB1191049A (xx)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631366A (en) * 1966-11-04 1971-12-28 Pierre E Ugon Polarized electromagnetic relays having a floating armature
US3903491A (en) * 1973-09-20 1975-09-02 Siemens Ag Magnet system for a relay having a freely rolling armature
DE2461884A1 (de) * 1974-12-30 1976-07-01 Sds Elektro Gmbh Elektromagnetisches schaltgeraet
US4581597A (en) * 1984-01-13 1986-04-08 Figgie International Inc. Electromagnetic actuator
US5818316A (en) * 1997-07-15 1998-10-06 Motorola, Inc. Nonvolatile programmable switch
US5877664A (en) * 1996-05-08 1999-03-02 Jackson, Jr.; John T. Magnetic proximity switch system
US5929731A (en) * 1996-05-08 1999-07-27 Jackson Research, Inc. Balanced magnetic proximity switch assembly
US20070290777A1 (en) * 2004-10-29 2007-12-20 Markus Leipold Electrical Switching Device Comprising Magnetic Adjusting Elements

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7014026A (xx) * 1970-09-23 1972-03-27

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935585A (en) * 1957-04-22 1960-05-03 Sigma Instruments Inc Polarized electromagnetic relay

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935585A (en) * 1957-04-22 1960-05-03 Sigma Instruments Inc Polarized electromagnetic relay

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631366A (en) * 1966-11-04 1971-12-28 Pierre E Ugon Polarized electromagnetic relays having a floating armature
US3903491A (en) * 1973-09-20 1975-09-02 Siemens Ag Magnet system for a relay having a freely rolling armature
DE2461884A1 (de) * 1974-12-30 1976-07-01 Sds Elektro Gmbh Elektromagnetisches schaltgeraet
US4581597A (en) * 1984-01-13 1986-04-08 Figgie International Inc. Electromagnetic actuator
US5877664A (en) * 1996-05-08 1999-03-02 Jackson, Jr.; John T. Magnetic proximity switch system
US5929731A (en) * 1996-05-08 1999-07-27 Jackson Research, Inc. Balanced magnetic proximity switch assembly
US5818316A (en) * 1997-07-15 1998-10-06 Motorola, Inc. Nonvolatile programmable switch
US20070290777A1 (en) * 2004-10-29 2007-12-20 Markus Leipold Electrical Switching Device Comprising Magnetic Adjusting Elements
US7760057B2 (en) * 2004-10-29 2010-07-20 Rohde & Schwarz Gmbh & Co. Kg Electrical switching device comprising magnetic adjusting elements

Also Published As

Publication number Publication date
CH479948A (de) 1969-10-15
GB1191049A (en) 1970-05-06
DE1614672B2 (de) 1972-05-10
FR1594064A (xx) 1970-06-01
DE1614672A1 (de) 1970-03-26
BE724894A (xx) 1969-06-04

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