EP0860848A3 - Electromagnetic safety relay - Google Patents

Electromagnetic safety relay Download PDF

Info

Publication number
EP0860848A3
EP0860848A3 EP98200107A EP98200107A EP0860848A3 EP 0860848 A3 EP0860848 A3 EP 0860848A3 EP 98200107 A EP98200107 A EP 98200107A EP 98200107 A EP98200107 A EP 98200107A EP 0860848 A3 EP0860848 A3 EP 0860848A3
Authority
EP
European Patent Office
Prior art keywords
strips
actuator
relay
given
frame
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.)
Withdrawn
Application number
EP98200107A
Other languages
German (de)
French (fr)
Other versions
EP0860848A2 (en
Inventor
Maurizio Baggi
Federico Ceriati
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.)
MTI Srl
Original Assignee
MTI Srl
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 MTI Srl filed Critical MTI Srl
Publication of EP0860848A2 publication Critical patent/EP0860848A2/en
Publication of EP0860848A3 publication Critical patent/EP0860848A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H01H50/642—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement intermediate part being generally a slide plate, e.g. a card
    • 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
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/001—Means for preventing or breaking contact-welding

Abstract

An electromagnetic safety relay (90) comprising a coil (10) wound about a core, a metal frame (20), a movable armature (30) secured to the frame (20) and used to operate an assembly of contact carrier strips (50) consisting of fixed strips (5F) and mobile strips (5M), an actuator (40) guiding the movement of the strips (50), and a return spring (80) positioned below the frame (20) such that the system of active forces (given by the movable armature (30)) and of reactive forces (given by the return spring (80)) is asymmetric, ie is applied on the same side of the actuator (40). This constructional arrangement enables the fixed contact carrier strips (5F) to be given sufficient rigidity and enables a single compact and robust actuator model (40) to be used for the various configurations of the electrical contacts (70) of the relay (90). Moreover, differential malfunctions between the two sides of the assembly of electrical contacts (70) are prevented and it becomes possible to determine and indicate anomalies in the case of breakage of the actuator (40) with the relay (90) energized.
EP98200107A 1997-02-13 1998-01-15 Electromagnetic safety relay Withdrawn EP0860848A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT97MI000295A IT1290310B1 (en) 1997-02-13 1997-02-13 ELECTROMAGNETIC SAFETY RELAY
ITMI970295 1997-02-13

Publications (2)

Publication Number Publication Date
EP0860848A2 EP0860848A2 (en) 1998-08-26
EP0860848A3 true EP0860848A3 (en) 1999-03-17

Family

ID=11375986

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98200107A Withdrawn EP0860848A3 (en) 1997-02-13 1998-01-15 Electromagnetic safety relay

Country Status (2)

Country Link
EP (1) EP0860848A3 (en)
IT (1) IT1290310B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59902225D1 (en) * 1998-10-16 2002-09-05 Tyco Electronics Gmbh Wien SAFETY RELAY
FR2811469B1 (en) * 2000-07-05 2003-01-31 Chauvin Arnoux ELECTROMAGNETIC RELAY COMPRISING AN INSULATING BLOCK FOR THE HOUSING OF CONTACT COMPONENTS AND A SLIDER FOR CONTROLLING MOBILE CONTACTS
FR2811470B1 (en) * 2000-07-05 2003-02-07 Chauvin Arnoux ELECTROMAGNETIC RELAY COMPRISING A BLOCK FOR THE HOUSING OF CONTACT COMPONENTS AND A CONTROL SLIDER OF MOBILE CONTACTS
JP6047909B2 (en) * 2012-04-09 2016-12-21 オムロン株式会社 Switch
CN104037024A (en) * 2014-06-12 2014-09-10 朱红锋 Lever forced traction type safe relay
CN107193270B (en) * 2017-05-31 2024-01-23 北京广利核系统工程有限公司 Digital quantity output channel self-diagnosis detection circuit, detection device and detection method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2529205A1 (en) * 1972-10-18 1977-01-27 Rausch & Pausch FOLDING ARM RELAY WITH ONE END OF CONTACT AND SWITCHING SPRING HELD IN A SPRING
FR2379904A1 (en) * 1977-02-02 1978-09-01 Feme ELECTROMAGNETIC RELAY
DE2717293A1 (en) * 1977-04-19 1978-11-02 Siemens Ag Electromagnetic relay with guided contacts - has slider actuating moving contact springs, coupled to flap armature extension
FR2421456A1 (en) * 1978-03-31 1979-10-26 Rausch & Pausch ELECTROMAGNETIC RELAY

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2529205A1 (en) * 1972-10-18 1977-01-27 Rausch & Pausch FOLDING ARM RELAY WITH ONE END OF CONTACT AND SWITCHING SPRING HELD IN A SPRING
FR2379904A1 (en) * 1977-02-02 1978-09-01 Feme ELECTROMAGNETIC RELAY
DE2717293A1 (en) * 1977-04-19 1978-11-02 Siemens Ag Electromagnetic relay with guided contacts - has slider actuating moving contact springs, coupled to flap armature extension
FR2421456A1 (en) * 1978-03-31 1979-10-26 Rausch & Pausch ELECTROMAGNETIC RELAY

Also Published As

Publication number Publication date
ITMI970295A1 (en) 1998-08-13
EP0860848A2 (en) 1998-08-26
IT1290310B1 (en) 1998-10-22

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