US3750060A - Electromagnetic relay - Google Patents

Electromagnetic relay Download PDF

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Publication number
US3750060A
US3750060A US00245739A US3750060DA US3750060A US 3750060 A US3750060 A US 3750060A US 00245739 A US00245739 A US 00245739A US 3750060D A US3750060D A US 3750060DA US 3750060 A US3750060 A US 3750060A
Authority
US
United States
Prior art keywords
spring means
contact spring
contact
holding
springs
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
US00245739A
Other languages
English (en)
Inventor
H Pfenning
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.)
Bach and Co GmbH
Original Assignee
Bach and Co GmbH
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
Priority claimed from DE19712119734 external-priority patent/DE2119734C3/de
Application filed by Bach and Co GmbH filed Critical Bach and Co GmbH
Application granted granted Critical
Publication of US3750060A publication Critical patent/US3750060A/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
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/56—Contact spring sets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
    • H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
    • H01H1/26—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting with spring blade support
    • H01H2001/265—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting with spring blade support having special features for supporting, locating or pre-stressing the contact blade springs

Definitions

  • FIG. l shows a relay accordingto thepresent invention asseen from the side and at a scale whichcorrehas at least three slits or cuts respectivelyreceiving one contact spring each which are inclined relative to the base surface ofthe insulating block and the inclination of which determines the elastic preloadof the contact springs.
  • the insulating block furthermore is provided with at least two supporting arms extending in" a direction transverse to thecontact springsrone of thesupporting arms forming an abutment for the outer counter contact spring, whereas the other supporting arm serves for engagement with the inner contact spring.”
  • the insulating block With such a design of the insulating block it is particularly advantageous to mount the supporting arms on a wall formed onto the insulating block which wall in the longitudinal direction of the contact springs and at least approximately parallel thereto protrudes from the insulating block.
  • Such wall will assure not only the spacing of the supporting arms and their counter springs from the intermediate contact spring but will also protect the en- .tire counter spring set against mechanical damage which may occur when mounting the relay in a larger unit and may also occur during a later checking operation.
  • the invention may advantageously be employed with such electromagnetic relays in which the contact spring set is equipped with contact springs of which each two are arranged in a common plane adjacent to each other. f each two contact springs located in the same plane adjacent to each other, one spring belongs to one of two contact sets whereas the other spring belongs to another one of two contact sets.
  • These contact sets may preferably be designed as reversing contact sets.
  • a particularly simple but stable symmetrical construction of the contact spring set may be realized by providing the insulating block for each of the contact springs with one of two cuts or slits which are located in the same plane and extend from two oppositely located block sides to the vicinity of another cut or slit while maintaining an intermediate Web for holding the block together.
  • the illustrated miniature relay has arranged on the pressed body of synthetic material a fine wire coil 11, and an iron core 12 extending through the coil, which core protrudes at one coil end beyond the body 10 and at its other end is riveted to an angle member 13 forming a part of the iron core.
  • the longer leg 14 of the angle member 13 has its end section designed to form a knife edge bearing 15 for a movable hinged armature 16 which is secured on the'edge of leg 14 by means of a holding plate 17.
  • The'contact spring set forming a compact construction group is connected to the leg 14 by a holding screw 18 extending all the way through.
  • the supporting wall 27 is located along the extension of this web. These cuts are shown in FIG. 3 for the contact set B and are designated with the reference numerals 31, 32 and 33, and are also shown for the contact set C and are designated with the reference numerals 34, 35 and 36.
  • the slit 31 intended for receiving the outer contact spring 25 is inclined with regard to the base surface 40 of the insulating block 26 which base surface is provided with two plug studs 37 and 38 in such a way that the contact spring 25, when being inserted into the slit, will automatically obtain the necessary preload which, when energizing the relay, will assure a proper contact with regard to the intermediate contact spring 22 which is then moved by the hinged armature 16 through the plunger stud 21.
  • Numerals 45 designate the contact elements on contactsprings 25.
  • a contact spring assembly comprising: ribbon-like center contact spring means and outer contact spring means arranged in generally parallel superposed spaced relation, holding and insulating means supportingly engaging said spring means in a region near one end and interengageable contact element means on said spring means near the other end, an'electromagnetic actuator having a frame connected to said holding and insulating means adjacent one of said outer contact spring means, said center contact spring means normally holding the contact element means thereon in engagement with the contact element means on said one'outer contact spring means,
  • said electromagnetic actuator having an armature operatively connected to said center contact spring means and operable when energized to move said center contact spring means to cause the contact element thereon to separate from the contact means on said one outer spring means and to engage the said contact means on the other outer spring means, said holdingand insulating means having separate slits receiving said regions of said contact spring means, said slits being inclined to each other to predetermine the elastic preload on said contact spring means, and abutment elements engageable with said outer contact spring means to limit the movement of said outer contact spring means toward said center spring means, said abutment elements protruding into the space betweensaid center contact spring means and respective ones of said outer contact means, and being formed in one piece with said holding g 6 and insulating means.
  • each of said center andouter spring means comprise a pair of springs in laterally spaced relation, said holding and insulating means having a said slit for each spring extending inwardly from the respective side of said holding and insulating means, the central portion of said holding and insulating means between the respective slits for each pair of springs being uninterrupted.
  • each of said center and outer spring means comprise a pair of springs in laterally spaced relation, said holding and insulating means having a said slit for each spring extending inwardly from the respective side of said holding and insulating means, the central portion of said holding and insulating means between the respective slits for each pair of springs being uninterrupted, a wall portion integral with said central portion of said holding and insulating means and extending outwardly therefrom in the space between the respective springs of each pair of contact spring means, said abutment elements being integral with said wall portion and protruding in the lateral direction therefrom into the spaces between the respective springs of said pair of center contact spring means and the respective springs of said pairs of outer contact spring means.
  • each of said center and outer spring means comprise a pair of springs in laterally spaced relation, said holding and insulating means having a said slit for each spring extending inwardly from the respective side of said holding and insulating means, the central portion of said holding and insulating means between the respective slits for each pair of springs being uninterrupted, a wall portion integral with said central portion of said holding and insulating means and extending outwardly therefrom in the space between'the respective springs of each pair of contact spring means, said abutment elements being integral with said wall portion and protruding in the lateral direction therefrom into the spaces between the respective springs of said pair of center contact spring means and the respective springs of said pairs of outer contact spring means, said wall portion comprising a cutout facing said electromagnetic actuator, and plunger means reciprocably guided in said cuto'ut and disposed between said center contact spring means and the armature of said electromagnetic actuator and forming the operative connection of said armature to said center contact

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Contacts (AREA)
  • Electromagnets (AREA)
US00245739A 1971-04-22 1972-04-20 Electromagnetic relay Expired - Lifetime US3750060A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19712119734 DE2119734C3 (de) 1971-04-22 Elektromagnetisches Relais
DE7115572U DE7115572U (de) 1971-04-22 1971-04-22 Elektromagnetisches Relais

Publications (1)

Publication Number Publication Date
US3750060A true US3750060A (en) 1973-07-31

Family

ID=25761002

Family Applications (1)

Application Number Title Priority Date Filing Date
US00245739A Expired - Lifetime US3750060A (en) 1971-04-22 1972-04-20 Electromagnetic relay

Country Status (5)

Country Link
US (1) US3750060A (enrdf_load_stackoverflow)
DE (1) DE7115572U (enrdf_load_stackoverflow)
FR (1) FR2135168B1 (enrdf_load_stackoverflow)
GB (1) GB1338548A (enrdf_load_stackoverflow)
NL (1) NL7205391A (enrdf_load_stackoverflow)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020435A (en) * 1974-10-28 1977-04-26 Danfoss A/S Hinged armature relay
US4052581A (en) * 1974-10-29 1977-10-04 Nippon Gakki Seizo Kabushiki Kaisha Switch with movable and fixed contacts
US4087667A (en) * 1975-01-20 1978-05-02 Bunker Ramo Corporation Double-throw contact
US4101856A (en) * 1976-04-07 1978-07-18 Fritz Kolle Electrical switching relay construction and housing therefor
DE2719870A1 (de) * 1977-02-02 1978-08-03 Feme Elektromagnetisches relais
US4264885A (en) * 1978-03-31 1981-04-28 Kabushiki Kaisha Tokai Rika Deuki Seisakusho Electromagnetic relay
US4322700A (en) * 1979-12-21 1982-03-30 Bell Telephone Laboratories, Incorporated Electrical relay apparatus
US4542582A (en) * 1983-08-01 1985-09-24 Original Electric Mfg. Co., Ltd. Relay assemblage and a method of forming same
US4672158A (en) * 1984-09-05 1987-06-09 At&T Company And At&T Technologies, Inc. Multiple contact switch
US20140368302A1 (en) * 2013-06-14 2014-12-18 Shanghai Wanjia Precision Components Co.,Ltd Relay contact system
US20160099096A1 (en) * 2013-05-08 2016-04-07 Eto Magnetic Gmbh Electromagnetic actuating apparatus
US20180025824A1 (en) * 2015-02-01 2018-01-25 K.A. Advertising Solutions Ltd. Electromagnetic actuator
US11062868B2 (en) * 2018-01-17 2021-07-13 Fujitsu Component Limited Electromagnetic relay
US11133140B2 (en) * 2017-04-14 2021-09-28 Panasonic Intellectual Property Management Co., Ltd. Contact device and electromagnetic relay

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3002079A1 (de) 1980-01-21 1981-07-23 Siemens AG, 1000 Berlin und 8000 München Relais
GB2225165B (en) * 1988-11-21 1993-01-06 Mitsuku Denshi Kogyo Leaf switch

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT224708B (de) * 1959-10-10 1962-12-10 Tesla Np Kontaktfedersatz für elektromagnetische Schwachstromrelais
US3256401A (en) * 1963-04-03 1966-06-14 American Mach & Foundry Spring pile-up electromagnetic relay

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT224708B (de) * 1959-10-10 1962-12-10 Tesla Np Kontaktfedersatz für elektromagnetische Schwachstromrelais
US3256401A (en) * 1963-04-03 1966-06-14 American Mach & Foundry Spring pile-up electromagnetic relay

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020435A (en) * 1974-10-28 1977-04-26 Danfoss A/S Hinged armature relay
US4052581A (en) * 1974-10-29 1977-10-04 Nippon Gakki Seizo Kabushiki Kaisha Switch with movable and fixed contacts
US4087667A (en) * 1975-01-20 1978-05-02 Bunker Ramo Corporation Double-throw contact
US4101856A (en) * 1976-04-07 1978-07-18 Fritz Kolle Electrical switching relay construction and housing therefor
DE2719870A1 (de) * 1977-02-02 1978-08-03 Feme Elektromagnetisches relais
US4264885A (en) * 1978-03-31 1981-04-28 Kabushiki Kaisha Tokai Rika Deuki Seisakusho Electromagnetic relay
US4322700A (en) * 1979-12-21 1982-03-30 Bell Telephone Laboratories, Incorporated Electrical relay apparatus
US4542582A (en) * 1983-08-01 1985-09-24 Original Electric Mfg. Co., Ltd. Relay assemblage and a method of forming same
US4672158A (en) * 1984-09-05 1987-06-09 At&T Company And At&T Technologies, Inc. Multiple contact switch
US20160099096A1 (en) * 2013-05-08 2016-04-07 Eto Magnetic Gmbh Electromagnetic actuating apparatus
US9761363B2 (en) * 2013-05-08 2017-09-12 Eto Magnetic Gmbh Electromagnetic actuating apparatus
US20140368302A1 (en) * 2013-06-14 2014-12-18 Shanghai Wanjia Precision Components Co.,Ltd Relay contact system
US20180025824A1 (en) * 2015-02-01 2018-01-25 K.A. Advertising Solutions Ltd. Electromagnetic actuator
US11133140B2 (en) * 2017-04-14 2021-09-28 Panasonic Intellectual Property Management Co., Ltd. Contact device and electromagnetic relay
US11062868B2 (en) * 2018-01-17 2021-07-13 Fujitsu Component Limited Electromagnetic relay

Also Published As

Publication number Publication date
FR2135168B1 (enrdf_load_stackoverflow) 1980-04-18
DE7115572U (de) 1972-10-19
GB1338548A (en) 1973-11-28
DE2119734A1 (de) 1972-11-02
DE2119734B2 (de) 1974-01-10
NL7205391A (enrdf_load_stackoverflow) 1972-10-24
FR2135168A1 (enrdf_load_stackoverflow) 1972-12-15

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