EP1011122A2 - Unité de contact pour relais électromagnétiques - Google Patents

Unité de contact pour relais électromagnétiques Download PDF

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Publication number
EP1011122A2
EP1011122A2 EP99123867A EP99123867A EP1011122A2 EP 1011122 A2 EP1011122 A2 EP 1011122A2 EP 99123867 A EP99123867 A EP 99123867A EP 99123867 A EP99123867 A EP 99123867A EP 1011122 A2 EP1011122 A2 EP 1011122A2
Authority
EP
European Patent Office
Prior art keywords
contact
spring
unit according
points
contact spring
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.)
Granted
Application number
EP99123867A
Other languages
German (de)
English (en)
Other versions
EP1011122A3 (fr
EP1011122B1 (fr
EP1011122B8 (fr
Inventor
Johannes Oberndorfer
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.)
Panasonic Electric Works Europe AG
Original Assignee
Matsushita Electric Works Europe AG
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 Matsushita Electric Works Europe AG filed Critical Matsushita Electric Works Europe AG
Priority to SI9930829T priority Critical patent/SI1011122T1/sl
Priority to DK99123867T priority patent/DK1011122T3/da
Priority to EP05012458A priority patent/EP1575075B1/fr
Publication of EP1011122A2 publication Critical patent/EP1011122A2/fr
Publication of EP1011122A3 publication Critical patent/EP1011122A3/fr
Publication of EP1011122B1 publication Critical patent/EP1011122B1/fr
Application granted granted Critical
Publication of EP1011122B8 publication Critical patent/EP1011122B8/fr
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
    • H01H50/548—Contact arrangements for miniaturised relays
    • 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
    • H01H1/20—Bridging contacts
    • H01H1/2075—T-shaped bridge; bridging contact has lateral arm for mounting resiliently or on a pivot
    • 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
    • H01H1/20—Bridging contacts
    • H01H1/2083—Bridging contact surfaces directed at an oblique angle with respect to the movement of the bridge
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/38—Auxiliary contacts on to which the arc is transferred from the main contacts

Definitions

  • Twin contact springs as they are similar from DE-B-11 75 807, DE-U-94 04 775 and DE-C-972 072 are known, but there is Difficulty that the spring arms formed by the longitudinal slot easier break as the undivided feather. In such a case, the relay is indeed in itself still functional, but the broken spring arm can unforeseen short circuits.
  • Another problem with the known Twin contact spring is that the individual spring arms a lot are softer than the undivided spring, so that when welding a contact the corresponding spring arm is not sufficiently stiff to the actuator to hold in the closed contact position. For these reasons is the use of the well-known twin contact springs for safety relays not permitted.
  • the invention has for its object to a contact unit create the reliability of the contacting in safety relays, i.e. Relay with positively driven contacts, increased.
  • the contact spring is attached Two contact points are provided, which are transverse to the longitudinal extension of the contact spring are arranged and with the same fixed contact or with this the intended counter contact points.
  • the fact, that the contact spring is not only flexible in at least one area, but also has increased torsional capability around its longitudinal axis, that both contact pairs close even if that Contact pieces carrying the free end of the contact spring is not parallel to the the fixed contact carrying the mating contacts runs.
  • the contact unit according to the invention the contact spring continuously in its preserved in one piece, so that spring breakage is less likely and, if necessary, to a complete failure of the relay due to an interruption leads.
  • the two contact pairs can each have at least two separate, provided on contact spring and / or fixed contact be educated. According to claim 2, it is alternatively possible to use the two Contact points on the contact spring and / or on the fixed contact in the form to train a common contact piece.
  • the design of the actuator guiding the contact spring according to the Claims 8 and 9 is appropriate to that for the relay according to the invention to effectively utilize typical torsion behavior of the contact spring.
  • the contact unit designed so that the contact spring relative to the fixed contact is consciously inclined, so that a first closing and last opening Pre-contact and a last closing and first opening main contact arise.
  • This design has the advantage of softer contact with reduced bounce behavior.
  • the contact unit shown in FIGS. 1 and 2 essentially consists of a contact spring 10, which is fastened at one end to a carrier 11 , for example riveted, a fixed contact 12 opposite the free end of the contact spring 10 and one which engages on the contact spring 10 Actuator 13, which in the exemplary embodiment assumed here is coupled to a relay armature 14 indicated in FIG. 2.
  • the free end of the contact spring 10 opposite the fixed contact 12 is widened with respect to its main part and carries two contact pieces 15, 16 which are arranged next to one another (in the drawing one below the other) transversely to the longitudinal extension of the contact spring 10 .
  • the fixed contact 12 is provided with two contact pieces 17, 18 , which face the contact pieces 15, 16 of the contact spring 10 and each cooperate with them.
  • the free end of the contact spring 10 is at an angle to the fixed contact 12, so that the straight line connecting the contact pieces 15, 16 of the contact spring 10 intersects the straight line connecting the contact pieces 17, 18 of the fixed contact 12 at an acute angle .
  • This inclined position of the free end of the contact spring 10 arises from the fact that the contact spring is pre-arranged around its longitudinal axis in a torsion region 19 located between its fixed and free end.
  • the actuator 13 is arranged and designed so that it engages the contact spring 10 near its free end and can engage with both opposite surfaces of the contact spring 10 .
  • the contact areas 20, 21 of the actuator 13 are convex in the direction of the respective surface of the contact spring 10 .
  • the armature 14 If the armature 14 is actuated in the direction of arrow A when the relay is actuated, it moves the actuator 13 to the right in FIG. Figure 2 shows the moment at which the upper contact piece 15 of the contact spring 10 just touches the contact piece 17 of the fixed contact 12 .
  • the front end of the contact spring 10 pivots about the point of contact between the contact pieces 15 and 17, this pivoting movement being ensured by the torsion area 19 being adequately dimensioned until the lower contact pieces 16, 18 meet one another touch.
  • the subsequent further movement of the actuator 13 to the right in FIG. 2 to the end position of the armature 14 now causes the fixed contact 12 to be deflected and the contact force on the two contact pairs to be increased.
  • the upper contact pair 15, 17 forms a pre-contact and the lower contact pair 16, 18 a main contact. Since the first closing and last opening pre-contact forms a load contact and wears out more quickly, as can be seen from FIG. 1, the contact piece 15 is dimensioned larger than the contact piece 16 belonging to the main or signal contact . Furthermore, the contact pieces 15, 17 consist of the pre-contact less noble material than the contact pieces 16, 18 of the main contact. For example, the contact pieces 15, 17 made of AgSnO and the contact pieces 16, 18 made of an AuAg alloy.
  • the electromagnetic relay partially shown in the perspective view in FIG. 3 (omitting the housing cap) comprises a base body 22, from which a yoke leg 23 of a yoke (not shown) penetrating a coil protrudes.
  • the yoke leg 23 is located between the two arms of the relay armature 14 which is generally H-shaped in this exemplary embodiment and which is pivotably mounted about a vertical central axis on a bearing journal 24 attached to the base body 22 .
  • the actuator 13 coupled to the relay armature 14 is displaceably guided in its plane by guide columns 25 formed on the base body 22 and, as shown in more detail in FIGS. 4 to 6, engages around the contact spring 10, whose contact pieces 15, 16 with the contact pieces 17 attached to the fixed contact 12 , 18 work together.
  • the relay is shown equipped with two contact springs 10 . Pins 26 of the fixed contacts 12 protrude from the base body 22 downward.
  • the torsion area 19 is realized by reducing the spring width.
  • the spring 10 can also be reduced in its material thickness in this area 19 or treated in some other way in order to increase the torsional capacity.
  • the area 19 is located between the fixed end of the contact spring 10 riveted to the contact carrier 11 and the engagement area of the actuator 13.
  • the contact spring 10 has its full width in this engagement area and at its fixed end, which is further increased at the free end, to create enough distance between the contact pieces 15 and 16 .
  • the actuator 13 engages the contact spring 10 in a stiffened area.
  • the contact spring 10 extends between the two contact areas 20, 21 of the actuator 13, of which the area is made convex or crowned 20 to assist in pressing the contact spring 10 to pivot about its central longitudinal axis allow and thus ensure contact at both contact pairs 15, 17 and 16, 18 .
  • a convex or spherical design is not necessary. If the contact spring 10 is biased into the closed position, the surface 21 of the actuator 13 which bears against it when it is opened should be spherical.
  • the two contact points located on the fixed contact 12 are formed on a common contact piece 27 , the contact surface of which is dimensioned such that it can cooperate with the two separate contact pieces 15 and 16 of the contact spring.
  • the contact surface of the common contact piece 27 is spherical.
  • Another conceivable alternative is to arrange a single, continuous contact piece both on the contact spring 10 and on the fixed contact 12 and to provide at least one of them with two projections for producing two spatially separated contact points.
  • the contact spring 10 is provided with a bead 28 in the direction of its longitudinal center axis, which increases the rigidity of the contact spring 10 in its longitudinal direction in the area between the contact pieces 15, 16 and the engagement area of the actuator 13 .
  • stiffening of the contact spring 10 can be achieved by increasing its thickness in the area between the contact pieces 15, 16 and the engagement area of the actuator 13 .
  • stiffening is in the bead 28 shown in FIG. 7 , it can pass over the entire length of the contact spring 10 up to its end fastened to the contact carrier 10 ; such a bead 28 running in the direction of the longitudinal central axis and thus in the neutral zone of the contact spring 10 leads to a reduced flexibility also in the area 19, but only slightly impairs the torsional capability in this area.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Relay Circuits (AREA)
  • Contacts (AREA)
  • Switch Cases, Indication, And Locking (AREA)
EP99123867A 1998-12-18 1999-12-01 Unité de contact pour relais électromagnétiques Expired - Lifetime EP1011122B8 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SI9930829T SI1011122T1 (sl) 1998-12-18 1999-12-01 Kontaktna enota za elektromagnetni rele
DK99123867T DK1011122T3 (da) 1998-12-18 1999-12-01 Kontaktenhed til elektromagnetiske relæer
EP05012458A EP1575075B1 (fr) 1998-12-18 1999-12-01 Unité de contact pour relais électromagnétiques

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19858755A DE19858755C1 (de) 1998-12-18 1998-12-18 Kontakteinheit für elektromagnetische Relais
DE19858755 1998-12-18

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP05012458A Division EP1575075B1 (fr) 1998-12-18 1999-12-01 Unité de contact pour relais électromagnétiques
EP05012458.5 Division-Into 2005-06-09

Publications (4)

Publication Number Publication Date
EP1011122A2 true EP1011122A2 (fr) 2000-06-21
EP1011122A3 EP1011122A3 (fr) 2001-04-25
EP1011122B1 EP1011122B1 (fr) 2005-07-06
EP1011122B8 EP1011122B8 (fr) 2005-08-31

Family

ID=7891762

Family Applications (2)

Application Number Title Priority Date Filing Date
EP05012458A Expired - Lifetime EP1575075B1 (fr) 1998-12-18 1999-12-01 Unité de contact pour relais électromagnétiques
EP99123867A Expired - Lifetime EP1011122B8 (fr) 1998-12-18 1999-12-01 Unité de contact pour relais électromagnétiques

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP05012458A Expired - Lifetime EP1575075B1 (fr) 1998-12-18 1999-12-01 Unité de contact pour relais électromagnétiques

Country Status (9)

Country Link
US (2) US6300854B1 (fr)
EP (2) EP1575075B1 (fr)
JP (1) JP4265057B2 (fr)
AT (2) ATE475982T1 (fr)
DE (3) DE19858755C1 (fr)
DK (1) DK1011122T3 (fr)
ES (2) ES2242347T3 (fr)
PT (2) PT1011122E (fr)
SI (2) SI1011122T1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105374583A (zh) * 2014-08-07 2016-03-02 株式会社电装 电磁开关

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6837729B2 (en) * 2002-09-10 2005-01-04 Tyco Electronics Corporation High power electrical contactor with improved bridge contact mechanism
JP2006294459A (ja) 2005-04-12 2006-10-26 Nec Tokin Corp 電磁継電器
DE102007034989B3 (de) * 2007-07-26 2009-03-12 Schaltbau Gmbh Mikroschalter
US7859372B2 (en) * 2007-10-24 2010-12-28 Tyco Electronics Corporation Methods and apparatus for reducing bounce between relay contacts
US9160333B2 (en) * 2011-05-06 2015-10-13 Purdue Research Foundation Capacitive microelectromechanical switches with dynamic soft-landing
EP2620966A1 (fr) 2012-01-27 2013-07-31 Johnson Electric S.A. Agencement de contact pour dispositifs de commutation électrique de grande puissance
DE102012017157A1 (de) 2012-08-30 2014-03-06 Hengstler Gmbh Relais mit modifizierter Kraft-Weg-Kennlinie
CN104995709A (zh) * 2012-11-05 2015-10-21 (株)旲桐 车辆用高压负荷开关
FR3007186B1 (fr) * 2013-06-12 2016-09-09 Stmicroelectronics Rousset Dispositif de memoire compact associant un plan memoire du type sram et un plan memoire du type non volatil, et procedes de fonctionnement
JP6393025B2 (ja) * 2013-07-01 2018-09-19 富士通コンポーネント株式会社 電磁継電器
JP2015153564A (ja) * 2014-02-13 2015-08-24 Ｎｅｃトーキン株式会社 電磁継電器
FR3018944A1 (fr) 2014-03-21 2015-09-25 St Microelectronics Rousset Dispositif de memoire associant un plan memoire du type sram et un plan-memoire du type non volatil, durci contre des basculements accidentels
US20230223227A1 (en) * 2022-01-07 2023-07-13 Te Connectivity Solutions Gmbh Contactor

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2665352A (en) * 1948-04-10 1954-01-05 Itt Contact-spring switch assembly
DE757518C (de) * 1938-12-10 1954-02-01 Mix & Genest A G Verfahren zur Erzeugung der erforderlichen Vorspannung bei gebogenen Kontaktfedern
US2853578A (en) * 1955-10-31 1958-09-23 Telephone Mfg Co Ltd Electric contact-making devices
DE972072C (de) * 1952-07-27 1959-05-21 Siemens Ag Kontaktfedersatz fuer elektrische Schaltgeraete, insbesondere fuer Relais der Fernmeldetechnik
DE1175807B (de) * 1959-04-10 1964-08-13 Schaltbau Gmbh Elektrische Zwillingskontaktanordnung mit zeit-lich nacheinanderschaltenden Kontaktpaaren
EP0081164A1 (fr) * 1981-11-30 1983-06-15 Siemens Aktiengesellschaft Relais électromagnétique
DE3224013A1 (de) * 1981-08-14 1983-12-29 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches relais
DE3224468A1 (de) * 1982-06-30 1984-01-05 Siemens AG, 1000 Berlin und 8000 München Relais mit brueckenkontaktfeder
EP0443075A1 (fr) * 1990-01-19 1991-08-28 BREMAS S.p.A. Poussoir, particulièrement pour coopérer avec des arbres à cames dans des commutateurs électriques
DE9404775U1 (de) * 1994-03-22 1994-06-09 W. Gruner Gmbh Relaisfabrik, 78564 Wehingen Kontaktsystem mit Wolfram-Vorlaufkontakt für Schaltrelais für hohe Einschaltstromspitzen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3238183A1 (de) * 1982-10-15 1983-05-19 Alois Zettler Elektrotechnische Fabrik GmbH, 8000 München Elektromagnetisches relais
DE9015406U1 (de) * 1990-11-09 1992-03-05 Siemens AG, 8000 München Elektromagnetisches Relais mit auf dem Anker befestigter Kontaktfeder

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE757518C (de) * 1938-12-10 1954-02-01 Mix & Genest A G Verfahren zur Erzeugung der erforderlichen Vorspannung bei gebogenen Kontaktfedern
US2665352A (en) * 1948-04-10 1954-01-05 Itt Contact-spring switch assembly
DE972072C (de) * 1952-07-27 1959-05-21 Siemens Ag Kontaktfedersatz fuer elektrische Schaltgeraete, insbesondere fuer Relais der Fernmeldetechnik
US2853578A (en) * 1955-10-31 1958-09-23 Telephone Mfg Co Ltd Electric contact-making devices
DE1175807B (de) * 1959-04-10 1964-08-13 Schaltbau Gmbh Elektrische Zwillingskontaktanordnung mit zeit-lich nacheinanderschaltenden Kontaktpaaren
DE3224013A1 (de) * 1981-08-14 1983-12-29 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches relais
EP0081164A1 (fr) * 1981-11-30 1983-06-15 Siemens Aktiengesellschaft Relais électromagnétique
DE3224468A1 (de) * 1982-06-30 1984-01-05 Siemens AG, 1000 Berlin und 8000 München Relais mit brueckenkontaktfeder
EP0443075A1 (fr) * 1990-01-19 1991-08-28 BREMAS S.p.A. Poussoir, particulièrement pour coopérer avec des arbres à cames dans des commutateurs électriques
DE9404775U1 (de) * 1994-03-22 1994-06-09 W. Gruner Gmbh Relaisfabrik, 78564 Wehingen Kontaktsystem mit Wolfram-Vorlaufkontakt für Schaltrelais für hohe Einschaltstromspitzen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105374583A (zh) * 2014-08-07 2016-03-02 株式会社电装 电磁开关
CN105374583B (zh) * 2014-08-07 2018-07-13 株式会社电装 电磁开关
DE102015112947B4 (de) * 2014-08-07 2020-11-05 Denso Corporation Elektromagnetischer Schalter

Also Published As

Publication number Publication date
ES2347967T3 (es) 2010-11-26
EP1575075A3 (fr) 2008-09-10
DK1011122T3 (da) 2005-08-01
US6362710B2 (en) 2002-03-26
US6300854B1 (en) 2001-10-09
EP1575075A2 (fr) 2005-09-14
PT1575075E (pt) 2010-09-08
SI1011122T1 (sl) 2005-12-31
PT1011122E (pt) 2005-09-30
ES2242347T3 (es) 2005-11-01
EP1011122A3 (fr) 2001-04-25
JP2000182456A (ja) 2000-06-30
ATE299290T1 (de) 2005-07-15
US20010054546A1 (en) 2001-12-27
SI1575075T1 (sl) 2010-11-30
ATE475982T1 (de) 2010-08-15
DE59912238D1 (de) 2005-08-11
EP1011122B1 (fr) 2005-07-06
EP1575075B1 (fr) 2010-07-28
DE59915189D1 (de) 2010-09-09
JP4265057B2 (ja) 2009-05-20
EP1011122B8 (fr) 2005-08-31
DE19858755C1 (de) 2000-06-08

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