EP1575075B1 - Kontakeinheit für elektromagnetische Relais - Google Patents

Kontakeinheit für elektromagnetische Relais Download PDF

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Publication number
EP1575075B1
EP1575075B1 EP05012458A EP05012458A EP1575075B1 EP 1575075 B1 EP1575075 B1 EP 1575075B1 EP 05012458 A EP05012458 A EP 05012458A EP 05012458 A EP05012458 A EP 05012458A EP 1575075 B1 EP1575075 B1 EP 1575075B1
Authority
EP
European Patent Office
Prior art keywords
contact
spring
unit
fixed
couple
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
EP05012458A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1575075A3 (de
EP1575075A2 (de
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 Industry Europe GmbH
Original Assignee
Panasonic 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 Panasonic Electric Works Europe AG filed Critical Panasonic Electric Works Europe AG
Priority to SI9931047T priority Critical patent/SI1575075T1/sl
Publication of EP1575075A2 publication Critical patent/EP1575075A2/de
Publication of EP1575075A3 publication Critical patent/EP1575075A3/de
Application granted granted Critical
Publication of EP1575075B1 publication Critical patent/EP1575075B1/de
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 similar from DE-B-11 75 807 .
  • DE-U-94 04 775 and DE-C-972 072 are known, but there is the difficulty that the spring arms formed by the longitudinal slot break more easily than the undivided spring. In such a case, although the relay itself is still functional, but the broken spring arm can lead to unforeseen short circuits.
  • Another problem of the known twin contact spring is that the individual spring arms are much softer than the undivided spring, so that when welding a contact of the corresponding spring arm is not stiff enough to hold the actuator in the closed contact position. For these reasons, the use of the known twin contact springs in safety relays is not permitted.
  • DE-A-32 24 468 shows an arrangement in which the contact points of two fixed contacts work together with a common contact point of a bridge contact spring.
  • a contact unit with the features specified in the preamble of claim 1 is made EP 0 081 164 A1 and DE-U-90 15 406 known. Both writings show no safety relays.
  • the invention has for its object to provide a contact unit, the reliability of the contact in safety relays, i. Relay with positively driven contacts, increased.
  • two contact points are provided on the contact spring, which are arranged transversely to the longitudinal extent of the contact spring and cooperate with the same fixed contact or provided with this mating contact points, wherein the two contact points are formed on the fixed contact in the form of a common contact piece.
  • the fact that the contact spring is not only flexible in at least one area, but also has increased torsional ability about its longitudinal axis, ensures that both contact pairs close even when the free end of the contact spring carrying the contact pieces is not parallel to the fixed contact bearing the mating contacts runs.
  • the contact spring according to the invention is obtained continuously in its one-piece shape, so that spring breakage is less likely and possibly leads to a complete failure of the relay by interruption.
  • the contact unit is formed so that the contact spring against the fixed contact is inclined, so that a first closing and last opening Vor animation and a last closing and first opening main contact arise.
  • the first closing and last-opening contact pair is equipped with the properties suitable for a load contact, while the other pair of contacts has the qualities of a signal contact.
  • FIGS. 1 to 6 serve for explanation; they show no contact arrangements according to the invention.
  • the in the FIGS. 1 and 2 shown contact unit consists essentially of a contact spring 10 which is fastened with its one end to a support 11 , riveted about, is a free end of the contact spring 10 opposite fixed contact 12 and an attacking on the contact spring 10 actuator 13, in the here assumed embodiment with an in FIG. 2 indicated relay armature 14 is coupled.
  • the fixed contact 12 opposite free end of the contact spring 10 is widened relative to its main part and carries two contact pieces 15, 16 which are arranged transversely to the longitudinal extent of the contact spring 10 side by side (in the drawing below each other). Likewise is the Fixed contact 12 with two contact pieces 17, 18 which face the contact pieces 15, 16 of the contact spring 10 and cooperate with each of these.
  • the free end of the contact spring 10 is at an angle to the fixed contact 12, so that the contact pieces 15, 16 of the contact spring 10 connecting straight line intersects the contact pieces 17, 18 of the fixed contact 12 connecting line at an acute angle.
  • This inclination of the free end of the contact spring 10 is due to the fact that the contact spring is vorortiert in a located between its fixed and free end torsion region 19 about its longitudinal axis.
  • the actuator 13 is arranged and configured to engage the contact spring 10 near its free end and to engage with both opposed surfaces of the contact spring 10 .
  • the contact areas 20, 21 of the actuator 13 in the direction of the respective surface of the contact spring 10 are convex.
  • FIG. 2 shows the moment in which the upper contact piece 15 of the contact spring 10, the contact piece 17 of the fixed contact 12 just touched.
  • this pivoting movement is ensured by a sufficiently sized twistability of the torsion 19 until the lower contact pieces 16, 18 touch each other.
  • the subsequent further movement of the actuator 13 to the right in FIG. 2 until the end position of the armature 14 now causes the fixed contact 12 deflected while the contact force is increased at the two contact pairs.
  • the contact piece 15 sized larger than the corresponding to the main or signal contact contact piece 16.
  • the contact pieces 15, 17 of the precontact of less noble material than the contact pieces 16, 18 of the main contact.
  • electromagnetic relay partially shown comprises a base body 22 from which protrudes a yoke leg 23 of a (not shown) coil passing through the yoke.
  • the yoke leg 23 is located between the two arms of the generally H-shaped relay armature 14 in this embodiment , which is pivotally mounted about a vertical center axis on a bearing pin 24 mounted on the base body 22 .
  • the coupled to the relay armature 14 actuator 13 is guided by integrally formed on the base body 22 guide columns 25 in its plane and engages around, as in FIGS. 4 to 6 shown in more detail, the contact spring 10, the contact pieces 15, 16 cooperate with the fixed contact 12 attached contact pieces 17, 18 .
  • the relay is shown equipped with two contact springs 10 . Terminal pins 26 of the fixed contacts 12 protrude from the base body 22 down.
  • the torsion portion 19 is realized by reducing the spring width.
  • the spring 10 in this area 19 also in their material thickness reduced or otherwise treated to increase the torsional ability.
  • the area 19 is between the riveted to the contact carrier 11 fixed end of the contact spring 10 and the attack region of the actuator 13.
  • the contact spring 10 has in this attack area and at its fixed end its full width, which is increased again at the free end, to create between the contact pieces 15 and 16 sufficient distance.
  • the actuator 13 engages the contact spring 10 in a stiffened area.
  • the contact spring 10 extends between the two contact regions 20, 21 of the actuator 13, of which the region 20 is convex or convex, to allow when pressing the contact spring 10 pivoting about its longitudinal central axis and thus a contact on both contact pairs 15, 17 and 16, 18 to ensure.
  • a convex or spherical design is not required. If the contact spring 10 is biased in the closed position, the voltage applied to the opening 21 on its surface 21 of the actuator 13 should be spherical.
  • the two located on the fixed contact 12 contact points are formed on a common contact piece 27 , the contact surface is dimensioned so that they can work together with the two separate contact pieces 15 and 16 of the contact spring.
  • the contact surface of the common contact piece 27 is spherically shaped.
  • An alternative is to arrange a single continuous contact piece on both the contact spring 10 and the fixed contact 12 and to provide at least the contact piece on the contact spring with two projections for generating two spatially separated contact points.
  • the contact spring 10 is provided in the direction of its longitudinal central axis with a bead 28 which increases the rigidity of the contact spring 10 in its longitudinal direction in the region between the contact pieces 15, 16 and the engagement region of the actuator 13 .
  • a stiffening of the contact spring 10 can be achieved by increasing its thickness in the region between the contact pieces 15, 16 and the engagement region of the actuator 13 .

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Relay Circuits (AREA)
  • Contacts (AREA)
  • Switch Cases, Indication, And Locking (AREA)
EP05012458A 1998-12-18 1999-12-01 Kontakeinheit für elektromagnetische Relais Expired - Lifetime EP1575075B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9931047T SI1575075T1 (sl) 1998-12-18 1999-12-01 Kontaktna enota za elektromagnetne releje

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19858755A DE19858755C1 (de) 1998-12-18 1998-12-18 Kontakteinheit für elektromagnetische Relais
DE19858755 1998-12-18
EP99123867A EP1011122B8 (de) 1998-12-18 1999-12-01 Kontakteinheit für elektromagnetische Relais

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP99123867A Division EP1011122B8 (de) 1998-12-18 1999-12-01 Kontakteinheit für elektromagnetische Relais
EP99123867.6 Division 1999-12-01

Publications (3)

Publication Number Publication Date
EP1575075A2 EP1575075A2 (de) 2005-09-14
EP1575075A3 EP1575075A3 (de) 2008-09-10
EP1575075B1 true EP1575075B1 (de) 2010-07-28

Family

ID=7891762

Family Applications (2)

Application Number Title Priority Date Filing Date
EP05012458A Expired - Lifetime EP1575075B1 (de) 1998-12-18 1999-12-01 Kontakeinheit für elektromagnetische Relais
EP99123867A Expired - Lifetime EP1011122B8 (de) 1998-12-18 1999-12-01 Kontakteinheit für elektromagnetische Relais

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP99123867A Expired - Lifetime EP1011122B8 (de) 1998-12-18 1999-12-01 Kontakteinheit für elektromagnetische Relais

Country Status (9)

Country Link
US (2) US6300854B1 (da)
EP (2) EP1575075B1 (da)
JP (1) JP4265057B2 (da)
AT (2) ATE299290T1 (da)
DE (3) DE19858755C1 (da)
DK (1) DK1011122T3 (da)
ES (2) ES2242347T3 (da)
PT (2) PT1575075E (da)
SI (2) SI1575075T1 (da)

Families Citing this family (14)

* 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 (en) * 2012-01-27 2013-07-31 Johnson Electric S.A. Contact arrangement for high-power electrical switching devices
DE102012017157A1 (de) 2012-08-30 2014-03-06 Hengstler Gmbh Relais mit modifizierter Kraft-Weg-Kennlinie
WO2014069907A1 (ko) 2012-11-05 2014-05-08 주식회사 대동 차량용 고부하 스위치
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
JP6609096B2 (ja) * 2014-08-07 2019-11-20 株式会社デンソー 電磁スイッチ
US12080499B2 (en) * 2022-01-07 2024-09-03 TE Connectivity Solutions GmbH-CH Contactor with movable contact

Family Cites Families (12)

* 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
DE8134890U1 (de) * 1981-11-30 1983-05-11 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
DE8228906U1 (de) * 1982-10-15 1989-04-06 Alois Zettler Elektrotechnische Fabrik GmbH, 8000 München Elektromagnetisches Relais
IT1238322B (it) * 1990-01-19 1993-07-12 Bremas Spa Punteria in particolare per la cooperazione con alberi a camme in commutatori elettrici, interruttori o similari
DE9015406U1 (de) 1990-11-09 1992-03-05 Siemens AG, 8000 München Elektromagnetisches Relais mit auf dem Anker befestigter Kontaktfeder
DE9404775U1 (de) * 1994-03-22 1994-06-09 W. Gruner Gmbh Relaisfabrik, 78564 Wehingen Kontaktsystem mit Wolfram-Vorlaufkontakt für Schaltrelais für hohe Einschaltstromspitzen

Also Published As

Publication number Publication date
DE59912238D1 (de) 2005-08-11
SI1011122T1 (sl) 2005-12-31
EP1011122A3 (de) 2001-04-25
DE59915189D1 (de) 2010-09-09
EP1575075A3 (de) 2008-09-10
ES2242347T3 (es) 2005-11-01
ATE299290T1 (de) 2005-07-15
SI1575075T1 (sl) 2010-11-30
JP4265057B2 (ja) 2009-05-20
EP1011122B8 (de) 2005-08-31
DE19858755C1 (de) 2000-06-08
EP1011122A2 (de) 2000-06-21
ATE475982T1 (de) 2010-08-15
JP2000182456A (ja) 2000-06-30
ES2347967T3 (es) 2010-11-26
US6300854B1 (en) 2001-10-09
US6362710B2 (en) 2002-03-26
DK1011122T3 (da) 2005-08-01
EP1575075A2 (de) 2005-09-14
EP1011122B1 (de) 2005-07-06
US20010054546A1 (en) 2001-12-27
PT1011122E (pt) 2005-09-30
PT1575075E (pt) 2010-09-08

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