US3717829A - Electromagnetic relay - Google Patents

Electromagnetic relay Download PDF

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Publication number
US3717829A
US3717829A US00175584A US3717829DA US3717829A US 3717829 A US3717829 A US 3717829A US 00175584 A US00175584 A US 00175584A US 3717829D A US3717829D A US 3717829DA US 3717829 A US3717829 A US 3717829A
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assembly
contact
armature
coil
base
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US00175584A
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English (en)
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R Flaherty
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Allied Control Co Inc
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Allied Control Co Inc
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/60—Contact arrangements moving contact being rigidly combined with movable part of magnetic circuit

Definitions

  • ABSTRACT OF THE DISCLOSURE A low profile electromagnetic relay of modular construction having integrated coil, base-contact and armature-contact assemblies to facilitate flexibility of preassembly.
  • the armature-contact assembly includes a unitary contact-return spring which supports an armature and movable contacts on the base-contact assembly for movement toward the coil assembly in parallel relation to the axis thereof in response to energization of an actuating coil associated with the coil assembly.
  • This invention relates in general to electromagnetic relays and deals more particularly with improved miniaturized relays for use with printed circuit boards or the like.
  • the general aim of the present invention is to provide an improved relay of the aforedescribed general type which has a low profile to permit circuit board stacking and which is assembled from modular components to facilitate flexibility of pre-assembly, whereby a plurality of modified forms of a basic relay structure may be provided using common components. Wear points encountered in conventional relays using actuators, armature hinges or bearings and separate return springs are substantially eliminated to produce relay life and assure a high degree of reliability. In the present relay structure the internal resistance of the relay contact circuit varies only at the point of contact between stationary and movable contacts.
  • an improved electromagnetic relay of modular construction having a coil assembly including an actuating coil, a basecontact assembly and at least one armature-contact assembly.
  • a unitary contact-return spring comprises part of the armature-contact assembly, carries at least one movable contact and an armature, and is attached to a terminal mounted on the base assembly for flexure relative thereto.
  • the armature-contact assembly is supported for arcuate movement in parallel relation to the coil axis in response to energization thereof.
  • FIG. 1 is a perspective view of a relay embodying the present invention.
  • FIG. 2 is an exploded perspective view of the relay of FIG. 1, for clarity of illustration the stationary contacts associated with the right end of the base member not being shown.
  • FIG. 3 is a plan view of another relay embodying the present invention.
  • FIG. 4 is an end view of the relay of FIG. 3.
  • a miniaturized electromagnetic relay embodying the present invention and indicated generally by the reference numeral 10 is characterized by its low profile, modular construction and two pole double throw circuit capability.
  • the relay 10 comprises a base-contact assembly indicated generally at 12, a motor or coil assembly designated generally by the numeral 14 and an armature-contact assembly indicated generally at 16.
  • the armature-contact assembly includes a pair of movable contacts 18, 18 which cooperate with stationary contact members 20, 20 and 22, 22 on the base assembly, as will be hereinafter described.
  • the base-contact assembly 12 includes a generally rectangular base member 24 having an upwardly facing seating surface 25 and molded from a suitable resilient plastic material such as nylon, preferably reinforced by glass fiber.
  • a pair of bosses 26, 26 extend upwardly from the seating surface 25 at opposite ends of the base member and have upwardly opening grooves formed therein which define seating surfaces 28, 28 to aid in positioning the stationary contact members 20, 20 and 22, 22 on the base member.
  • Another groove 30 formed in the base member between the bosses 26, 26 opens through the seating surface 25 and defines another seating surface 32 to aid in positioning the armaturecontact assembly 16 on the base member 24.
  • a particylindrical recess 34 formed in the base member opens through the seating surface 25 to receive an associated portion of the coil assembly 14.
  • Slots 36, 36 and 38, 38 respectively associated with the seating surfaces 28, 28 and 32 extend downwardly through the base member to receive the stationary contact members.
  • Integral motor retaining brackets 40, 40 extend upwardly from the seating surface 25 at opposite ends of the recess 34 and have opposing nose portions 42, 42 at the upper ends thereof which project inwardly or toward the center of the base member.
  • a pair of holes 44, 44 extend downwardly through the base member to receive terminals associated with the coil assembly.
  • the base member 24 is also provided with a pair of notches 46, 46 in its opposite ends to facilitate retention of a housing or cover (not shown).
  • a typical stationary contact member indicated at 20 in FIG. 2 includes a contact portion 48 and a terminal portion 50 which has a burr or spur 52 formed thereon.
  • the terminal portion 50 further defines downwardly facing bearing surfaces 54, 54 which engage an associated seating surface 28 when the contact member 20 is inserted into an associated slot 36 and pressed into assembly with the base member 24.
  • the spur 52 incises and grips the base material to retain the contact member 20 in assembly with the base member 24.
  • the stationary contact members 22, 22 are substantially identical to the contact members 20, 20, but have contact portions bent or slightly offset relative to the terminal portions thereof. Thus, a predetermined contact gap is provided between each contact member 20 and its associated contact member 22 to facilitate movement of an associated contact 18 positioned therebetween.
  • the terminal portion of each stationary contact member projects for some distance below the lower surface of the base member 24 to facilitate connection of the relay with a printed circuit board or the like.
  • the armature-control assembly I16 includes an elongated armature 56 formed of suitable paramagnetic material and having a central upwardly opening notch 58 formed therein.
  • the armature-contact assembly 16 further includes a resilient member or return spring 60 which provides flexible hinge connection between the armature 56 and the base member 24.
  • the return spring 60 is substantially flat and has a longitudinally extending portion 62 and an upwardly extending portion defined by a pair of spaced apart legs 64, 64.
  • the armature 56 is attached to the longitudinally extending portion 62 by a pair of fasteners or eyelets 66, 66. Referring to FIG.
  • the return spring has a central part designated by the numeral 68 exposed within the notch 58 and thereby spaced from the armature 56.
  • Strips of suitable insulating material 70, 70 are preferably fastened adjacent opposite sides of the longitudinally extending portion 62 to insulate the return spring from the armature.
  • the free ends of the longitudinal extending portion 62 extend outwardly beyond the ends of the armature 56 and have the movable contacts 18, 18 mounted thereon substantially as shown.
  • the armature-contact assembly also includes a terminal or mounting assembly indicated generally at 72 which comprises a pair of terminals 74, 74 joined by an integral central connecting part 76.
  • Each terminal has a spur 78 formed thereon spaced from the lower or free end thereof, a downwardly facing bearing surface 79 and a mounting lug 80 suitably secured to an associated leg 64.
  • Each lug is bent to a position out of the plane of its associated terminal 74.
  • the terminals 74, 7 4 are inserted into associated slots 38, 38 and pressed into the base member 24 so that the spurs 78, 78 incise and grip the base material.
  • the bearing surfaces 79, 79 engage the seating surface 32 to accurately position the armature-contact assembly 16 on the basecontact assembly 12.
  • the lugs 80, 80 support the return spring 60 in a slightly upwardly and outwardly inclined position relative to the base member 24.
  • Each contact 18 is disposed between an associated pair of stationary contact members and 22 and is biased into engagement with an associated stationary contact member 20 by the spring 60.
  • this assembly comprises a coil form or bobbin 91 accurately molded from suitable synthetic plastic material such as nylon or the like.
  • the bobbin 81 has an integral tubular central portion of generally rectangular cross section connecting a pair of end flanges 82, 82.
  • Base portions 84 and 86 extend outwardly from each flange 82 and are spaced apart a distance equal to the width of an associated bracket 40.
  • the base portions 84, 84 and 86, 86 define a downwardly facing bearing surface 88.
  • Each base portion 86 receives a coil terminal 90 which is pressed into assembly therewith and projects downwardly therefrom.
  • An actuating coil 92 is wound on the bobbin 80 and electrically connected to the upper ends of the coil terminals 90, 90 substantially as shown.
  • the coil assembly 14 further includes a core 93 made of suitable paramagnetic material.
  • the core has a generally rectangular cross-section and extends coaxially through the tubular portion of the bobbin 81 which is or maybe molded on the core.
  • Pole pieces 94, 94 disposed at axially opposite ends of the core 93 are transversely offset from the central portion thereof in one direction or toward one side of the coil assembly and define transversely outwardly. facing pole faces 96, 96 disposed outwardly beyond the bobbin flanges 82, 82.
  • the terminals 90, 90 are aligned with and inserted into the holes 44, 44.
  • the rounded nose portions 42, 42 engage the lower surfaces of the pole pieces 94, 94 and cause the brackets 40, 40 on the resilient base member 24 to spread slightly to receive the coil assembly 14 in snap engagement therebetween.
  • a lower portion of the coil assembly l14 is disposed within recess 34.
  • the base portions 84, 84 and 86, 86 receive the brackets 40, 40 therebetween and cooperate with the brackets to restrain the coil assembly 14 against transverse movement relative to the base member 24.
  • the coil assembly is further restrained against longitudinal movement relative to the base member by engagement of the motor brackets 40, 40 with the opposite end surfaces of the core 93.
  • the rounded nose portions 42, 42 bear against upper surfaces of the pole pieces 94, 94 to retain the coil assembly 14 in assembled relation with the base-contact assembly 12.
  • the armature 56 In assembly the armature 56 is positioned with its longitudinal axis in generally parallel alignment with the axis of the coil 92 and each end portion of the armature transversely aligned with an associated one of the pole faces 96, 96. Each movable contact 18 is received between and in general transverse alignment with a set of stationary contacts 20 and 22.
  • the armature 56 is supported for generally arcuate movement or flexure relative to the base-contact assembly 12 and toward the coil assembly 14 in response to energization of the coil 92.
  • the opposite end portions of the armature 56 are simutlaneously attracted by pole faces 96, 96 causing the armature to move toward the coil assembly in parallel relation to the axis thereof.
  • FIG. 6 a schematic plan view of the relay 10.
  • the illustrated relay 10 comprises a basic structure which may be provided in a plurality of forms each having different switching characteristics by selective assembly of common parts or by alternativeing certain of the parts either before or after assembly.
  • the central part 68 of the spring 60 and the connecting part 76 of the terminal assembly 72 provide common electrical connection between the movable contacts 18, 18 and the terminals 74, 74.
  • this common electrical connection may, if desired, be interrupted by severing the central part 68 and the connecting part 76 as indicated by broken lines S, S in FIGS. 1 and 2. This severing operation may be performed either before or after the relay has been assembled and for this reason the central part 68 and the connecting part 76 are located in relatively exposed positions.
  • FIGS. 7-20 various other forms of the basic relay 10 are illustrated schematically. Referring now particularly to FIGS. 7-11, five variations of the basic relay 10 are illustrated which may be attained by selective arrangement of the stationary contacts.
  • a relay designated at 10a includes only stationary contact members 22, 22 which are engaged by the movable contacts 18, 18 when the coil 92 is energized. Thus, the relay 10a operates as a form A switch.
  • FIG. 8 illustrates a form B modification of the relay 10, designated at 10b.
  • the relay 10b includes only the stationary contacts 20, 20 which are normally closed and which open upon energization of the relay coil 92.
  • FIG. 9 a further modified form of the relay 10 is illustrated and designated at 10c.
  • stationary contacts 20 and 22 are provided at the left end of the base-contact assembly and provide form C switching characteristics.
  • the movable contact 18 engages the stationary contact member 20 when the relay is de-energized and the contact member 22 when energized.
  • Only a single stationary contact member 22 is provided at the opposite end of the relay which imparts a form A characteristic to the pole at this end of the relay.
  • the relay form d illustrated in FIG. 10 includes a left pole of a form A type and a right pole of form B type.
  • FIG. 11 another modified form of the basic relay 10 is illustrated and designated at 10c and includes two poles and a common movable contact.
  • the relay 10e is provided with a pair of stationary contact members 20 and 22 at one end thereof and a single stationary contact member 20 at its opposite end.
  • the contacts 20, 20 are normally closed. Energization of the relay 10e causes the movable contacts 18, 18 to disengage the stationary contact members 20, 20 and one of the movable contacts to engage its associated contact member 22.
  • the relay 10 : provides both form B and form C switching characteristics.
  • FIGS. 12-14 illustrate various relays respectively designated 10f-10h provided with only one set of stationary contact members which may include either or both of the stationary contacts 20 and 22.
  • FIGS. -20 show further schematic illustrations of the basic switch 10, designated 10i-10n which may be obtained by severing the central part 68 and the connecting part 76 along the lines generally indicated at S, S in FIGS. 1 and 2 and by providing various combinations of stationary contacts for interaction with the resulting two electrically isolated movable contacts 18, 18.
  • FIGS. 3-5 Another electromagnetic relay embodying the present invention is illustrated in FIGS. 3-5 and indicated generally by the reference numeral 100.
  • the relay 100 is similar in many respects to the relay 10 previously described and parts substantially identical to parts previously described bear the same reference numerals as the previously described parts and will not be hereinafter further described.
  • the relay 100 includes a base-contact assembly 102 and a coil assembly 104 adapted for snap assembly with the base-contact assembly.
  • a pair of armature assemblies 16,16 mounted at diametrically opposite sides of the coil assembly 104 carry movable contacts 18, 18 which cooperate with a plurality of stationary contact members 20, and 22, 22 in the manner aforedescribed.
  • the base-contact assembly includes a base member 105 preferably molded from a resilient plastic material.
  • the base member 105 is generally symmetrical about its longitudinal and transverse axis and includes an upwardly facing seating surface 106.
  • a central recess 108 opens through the seating surface 106 to receive an associated lower portion of the coil assembly 104.
  • a pair of bosses 110, 110 project upwardly from the seating surface 106 at each end of the base member 105 and cooperate with the latter seating surface to define upwardly opening notches 112, 112.
  • Each pair of bosses has a pair of opposing nose portions 114, 114 which project into the notch 112 formed therebetween.
  • Various slots are formed in the base member 105 to facilitate proper assembly of the various stationary contacts and the armature assemblies 16, 16 with the base member 105 in the manner substantially aforedescribed.
  • the coil assembly 104 comprises a bobbin 116, an acuating coil 118 wound thereon and a core 120.
  • the bobbin is preferably molded on the core and includes a tubular central portion 122 connecting a pair of end flanges 124, 124.
  • a base or mounting portion 126 projects axially outwardly from each flange 124 and has a generally rectangular cross section adapted to be received in an associated notch 112.
  • the core 120 has a generally rectangular cross section and includes a central portion 130'which extends coaxially through the tubular portion 122.
  • 'Pole pieces 132, 132 disposed at axially opposite ends of the core are transversely offset in opposite directions from the central portion 130- thereof.
  • Each pole piece 132 extends outwardly beyond an associated flange and defines a transversely outwardly facing pole face 134.
  • the core 120 has four pole faces 134,
  • each mounting portion 126 is received in snap engagement in an associated notch 112.
  • the nose portions 114, 114 yield or spread as the mounting portions 126, 126 are snapped into the notches 112, 112 to releasably retain the coil assembly 104 in assembed relation with the base-contact assembly 102.
  • the relay also includes a resilient housing or cover 136 releasably retained in snap engagement with the notches 46, 46.
  • both armatures When the coil 118 is energized, both armatures simultaneously move toward the coil in response to attraction of the pole pieces 132, 132.
  • the basic operational characteristics of the relay 100 are substantially identical to those of the previously described relay 10.
  • the basic relay 100 may be altered in the manner substantially aforedescribed with reference to the relay 10 to provide a multiplicity of modified relay forms each having differing switching characteristics.
  • An electromagnetic relay comprising a base, a coil assembly including an actuating coil and a core of magnetic material associated with said coil and having pole pieces exposed at axially opposite ends of said coil, means for retaining said coil assembly in fixed position relative to said base, at least one armature assembly positioned near one side of said coil and including an elongated armature made of magnetic material, resilient means providing flexible hinge connection between said armature and said base and supporting said armature with the 1ongitudinal axis thereof generally parallel to the axis of said coil and each end portion thereof generally transversely aligned with an associated one of said pole pieces for generally arcuate movement relative to said base and in generally parallel relation to said coil axis, and at least one movable contact carried by said resilient means, at least one stationary contact, and means mounting said one stationary contact in fixed position relative to said base and in alignment with said movable contact to be engaged and disengaged thereby.
  • said resilient means comprises at least one flat spring member having a generally longitudinally extending portion and another portion providing said flexible hinge connection and said elongated armature is attached to said longitudinally extending portion.
  • An electromagnetic relay as set forth in claim 3 including another movable contact, another stationary contact, and means mounting said other stationary contact in fixed position relative to said base and in alignment with said other movable contact to be engaged and disengaged thereby, and wherein said longitudinally extending portion has another free end portion extending outwardly beyond the other end of said elongated armature and said other movable contact is carried by said other free end portion.
  • An electromagnetic relay as set forth in claim 4 wherein said longitudinally extending portion electrically connects said one and said other movable contact and wherein a part of said longitudinally extending portion between said one and said other movable contacts is spaced from said elongated armature to permit severance thereof for interrupting electrical connection between said one and said other movable contacts whereby to alter the characteristics of said relay.
  • An electromagnetic relay as set forth in claim 1 including another armature assembly positioned near another side of said coil, at least one other stationary contact, and means mounting said other stationary contact in fixed position relative to said base and in alignment with said one movable contact carried by said other armature assembly to be engaged and disengaged thereby.
  • An electromagnetic relay as set forth in claim 1 including a pair of generally spaced apart stationary contacts, said one movable contact being disposed between said stationary contacts.
  • An electromagnetic relay as set forth in claim 1 wherein said means for retaining said coil is further characterized as means for releasably retaining said coil assembly in snap-in assembly with said base.
  • An electromagnetic relay comprising a base-contact assembly including a base member and at least one stationary contact mounted on said base member, at least one armature-contact assembly including an elongated armature, means for mounting said armature-contact as sembly on said base member, resilient means providing flexible hinge connection between said armature and said mounting means, and at least one movable contact car- 'ried by said resilient means and aligned with said one stationary contact for engagement and disengagement therewith in response to flexure of said resilient means relative to said base member, a coil assembly including an actuating coil and a core having pole pieces exposed at axially opposite ends of said coil, each of said pole pieces being generally transversely aligned with an associated end portion of said armature for moving said armature and said movable contact in a generally arcuate path relative to said base in response to energization of said coil, and means for releasably retaining said coil assembly in snap-in assembly with said base-contact assembly.
  • An electromagnetic relay as set forth in claim 11 wherein said means for releasably retaining said coil assembly comprises portions of said base.
  • An electromagnetic relay as set forth in claim 14 wherein said resilient means comprises a spring member, said spring member cooperating with said terminal and said one movable contact to provide electrical connection therebetween.
  • said armature assembly includes means for electrically insulating said armature from said spring member, said armature has a notch formed therein, and a part of said longitudinally extending portion between said one and said other movable contact is disposed within said notch to facilitate severance thereof.
  • An electromagnetic relay comprising a base, at least two longitudinally spaced apart stationary contact members mounted on said base, each of said stationary contact members having a stationary contact portion disposed above said base and a terminal portion extending through the lower surface of said base, a pair of longitudinally spaced apart terminals mounted on said base, each of said terminals having a portion thereof extending through the lower surface of said base, a coil assembly mounted on said base with the axis thereof disposed in the longitudinal direction, said coil assembly including a coil and a core of magnetic material having pole pieces exposed at axially opposite ends of said core, and an armature assembly including a flat spring member having a longitudinally extending portion and including a pair of longitudinally spaced apart leg portions extending downwardly from said longitudinally extending portion, each of said leg portions attached at its lower end to an associated one of said termi nals, a pair of movable contacts mounted at opposite ends of said longitudinally extending portions, each of said movable contacts being generally transversely aligned with an associated stationary contact portion, and e

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US00175584A 1971-08-27 1971-08-27 Electromagnetic relay Expired - Lifetime US3717829A (en)

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US17558471A 1971-08-27 1971-08-27

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US (1) US3717829A (de)
CA (1) CA949628A (de)
DE (1) DE2229327C3 (de)
FR (1) FR2150817B1 (de)
GB (1) GB1383072A (de)
IT (1) IT964811B (de)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3787789A (en) * 1972-10-24 1974-01-22 Deltrol Corp Switching mechanism
US3828286A (en) * 1973-07-05 1974-08-06 Datron Syst Inc Miniature relay
US3993971A (en) * 1974-05-15 1976-11-23 Matsushita Electric Works, Ltd. Electromagnetic relay
US4010433A (en) * 1974-08-22 1977-03-01 Matsushita Electric Works, Ltd. Electromagnetic relay
JPS52151344U (de) * 1976-05-14 1977-11-16
JPS5373345A (en) * 1976-12-10 1978-06-29 Matsushita Electric Works Ltd Construction of electric equipment
JPS54107848U (de) * 1978-01-17 1979-07-30
FR2430081A1 (fr) * 1978-06-30 1980-01-25 Omron Tateisi Electronics Co Relais electromagnetique
US4292614A (en) * 1978-08-29 1981-09-29 Matsushita Electric Works, Ltd. Electromagnetic relay
DE3132244A1 (de) * 1981-08-14 1983-03-03 Siemens AG, 1000 Berlin und 8000 München Polarisiertes elektromagnetisches relais
DE3233254A1 (de) * 1981-09-22 1983-04-14 International Standard Electric Corp., 10022 New York, N.Y. Elektromagnetisches relais und verfahren zu seiner herstellung
EP0089670A2 (de) * 1982-03-23 1983-09-28 Siemens Aktiengesellschaft Elektromagnetisches Relais
EP0096350A2 (de) * 1982-06-03 1983-12-21 Siemens Aktiengesellschaft Elektromagnetisches Drehankerrelais
WO1984001661A1 (en) * 1982-10-15 1984-04-26 Mitsubishi Electric Corp Electromagnetic contactor
EP0129068A1 (de) * 1983-05-20 1984-12-27 Siemens Aktiengesellschaft Elektromagnetisches Kleinrelais und Verfahren zu dessen Herstellung
US4529952A (en) * 1981-04-06 1985-07-16 Matsushita Electric Works, Ltd. Electromagnetic relay
US4533889A (en) * 1983-12-14 1985-08-06 Amf Incorporated Relays and method for mounting relays on printed circuit boards
US4596972A (en) * 1983-10-31 1986-06-24 Amf Incorporated Miniature power switching relays
US4720909A (en) * 1983-10-31 1988-01-26 Amf Inc. Method of manufacturing miniature power switching relays
US4816794A (en) * 1986-07-30 1989-03-28 Omron Tateisi Electronics Co. Electromagnetic relay
DE3802688A1 (de) * 1988-01-29 1989-08-03 Siemens Ag Polarisiertes relais

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2833153A1 (de) * 1978-07-28 1980-02-14 Bosch Gmbh Robert Elektromagnetisches relais
GB2074381B (en) * 1980-04-10 1983-12-21 Matsushita Electric Works Ltd Electromagnetic relay

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3787789A (en) * 1972-10-24 1974-01-22 Deltrol Corp Switching mechanism
US3828286A (en) * 1973-07-05 1974-08-06 Datron Syst Inc Miniature relay
US3993971A (en) * 1974-05-15 1976-11-23 Matsushita Electric Works, Ltd. Electromagnetic relay
US4010433A (en) * 1974-08-22 1977-03-01 Matsushita Electric Works, Ltd. Electromagnetic relay
JPS5630120Y2 (de) * 1976-05-14 1981-07-17
JPS52151344U (de) * 1976-05-14 1977-11-16
JPS5373345A (en) * 1976-12-10 1978-06-29 Matsushita Electric Works Ltd Construction of electric equipment
JPS5521426B2 (de) * 1976-12-10 1980-06-10
JPS54107848U (de) * 1978-01-17 1979-07-30
JPS5737852Y2 (de) * 1978-01-17 1982-08-20
FR2430081A1 (fr) * 1978-06-30 1980-01-25 Omron Tateisi Electronics Co Relais electromagnetique
US4292614A (en) * 1978-08-29 1981-09-29 Matsushita Electric Works, Ltd. Electromagnetic relay
US4529952A (en) * 1981-04-06 1985-07-16 Matsushita Electric Works, Ltd. Electromagnetic relay
DE3132244A1 (de) * 1981-08-14 1983-03-03 Siemens AG, 1000 Berlin und 8000 München Polarisiertes elektromagnetisches relais
DE3233254A1 (de) * 1981-09-22 1983-04-14 International Standard Electric Corp., 10022 New York, N.Y. Elektromagnetisches relais und verfahren zu seiner herstellung
EP0089670A2 (de) * 1982-03-23 1983-09-28 Siemens Aktiengesellschaft Elektromagnetisches Relais
EP0089670A3 (en) * 1982-03-23 1985-07-03 Siemens Aktiengesellschaft Electromagnetic relay
EP0096350A2 (de) * 1982-06-03 1983-12-21 Siemens Aktiengesellschaft Elektromagnetisches Drehankerrelais
EP0096350A3 (en) * 1982-06-03 1986-12-30 Siemens Aktiengesellschaft Berlin Und Munchen Electromagnetic relay with rotating armature
WO1984001661A1 (en) * 1982-10-15 1984-04-26 Mitsubishi Electric Corp Electromagnetic contactor
US4654744A (en) * 1982-10-15 1987-03-31 Mitsubishi Denki Kabushiki Kaisha Electromagnetic contactor
EP0129068A1 (de) * 1983-05-20 1984-12-27 Siemens Aktiengesellschaft Elektromagnetisches Kleinrelais und Verfahren zu dessen Herstellung
US4517537A (en) * 1983-05-20 1985-05-14 Siemens Aktiengesellschaft Electromagnetic miniature relay and method of manufacture
US4596972A (en) * 1983-10-31 1986-06-24 Amf Incorporated Miniature power switching relays
US4720909A (en) * 1983-10-31 1988-01-26 Amf Inc. Method of manufacturing miniature power switching relays
US4533889A (en) * 1983-12-14 1985-08-06 Amf Incorporated Relays and method for mounting relays on printed circuit boards
US4816794A (en) * 1986-07-30 1989-03-28 Omron Tateisi Electronics Co. Electromagnetic relay
DE3802688A1 (de) * 1988-01-29 1989-08-03 Siemens Ag Polarisiertes relais

Also Published As

Publication number Publication date
FR2150817B1 (de) 1977-04-01
GB1383072A (en) 1975-02-05
IT964811B (it) 1974-01-31
DE2229327A1 (de) 1973-03-08
CA949628A (en) 1974-06-18
DE2229327C3 (de) 1974-12-05
FR2150817A1 (de) 1973-04-13
DE2229327B2 (de) 1974-05-16

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