EP0646282B1 - Elektromagnetisches relais - Google Patents

Elektromagnetisches relais Download PDF

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Publication number
EP0646282B1
EP0646282B1 EP93909803A EP93909803A EP0646282B1 EP 0646282 B1 EP0646282 B1 EP 0646282B1 EP 93909803 A EP93909803 A EP 93909803A EP 93909803 A EP93909803 A EP 93909803A EP 0646282 B1 EP0646282 B1 EP 0646282B1
Authority
EP
European Patent Office
Prior art keywords
armature
contact spring
base body
yoke
core
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
EP93909803A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0646282A1 (de
Inventor
Horst Hendel
Bernhard Kleine-Onnebrink
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP0646282A1 publication Critical patent/EP0646282A1/de
Application granted granted Critical
Publication of EP0646282B1 publication Critical patent/EP0646282B1/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
    • H01H51/00—Electromagnetic relays
    • H01H51/005—Inversing contactors
    • 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
    • H01H51/12—Armature is movable between two limit positions of rest and is moved in both directions due to the energisation of one or the other of two electromagnets without the storage of energy to effect the return movement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H2050/049—Assembling or mounting multiple relays in one common housing

Definitions

  • contact springs arranged between the armature and the coil can be switched between the rest position and a working position by the armature, at least two fixed counter-contact elements anchored in the base body each having at least one contact spring in at least one of them Give switch positions contact.
  • the arrangement of a holding pin for a contact spring in the area between the armature and coil provided here can influence the function of the relay in that, via the contact spring with a bearing pin serving as a connecting pin and the counter-contact element when the contact is closed, one through the iron circle of core, yoke and armature guided current loop can be formed, the magnetic field of which overlaps the excitation circuit of the coil.
  • the additionally generated magnetic flux can be directed in the same direction or in the opposite direction to the excitation flux and thus increase or weaken the attraction force on the armature.
  • the aim of the present invention is therefore to provide the possibility by constructive design of a relay structure of the type mentioned that the loop effect of the retaining pin arranged between armature, yoke and core can be switched off at least for certain applications with high switching currents.
  • this aim is achieved in that a connecting pin for the contact spring is anchored in the base body on the side of the armature or the yoke opposite the contact spring and is conductively connected to the contact spring by way of a bracket section which overlaps the armature or the yoke.
  • the solution according to the invention to the described problem is achieved in that the connecting pins of both contact springs are anchored in the area between the armature and the one coil in the base body, the one connecting pin as Hal pin for the one contact spring and the other is connected to the other contact spring by a bracket section spanning the armature.
  • This other contact spring accordingly has a retaining pin which does not serve as a connecting pin or at least does not have to be used as such.
  • the retaining pin of the other contact spring is designed as a connecting pin. So this additional pin can be used instead of the opposite pin or in addition to this for guiding the load current.
  • the holding pin can also be used as a connecting pin for both contact springs. If, on the other hand, it is desired that the loop effect is only partially effective, the retaining pin of this other contact spring can be connected in parallel to the separate connecting pin connected to it, so that half of the load current flows over both pins. The loop effect is then only about half of the loop current effect when the full load current is conducted via the relevant bearing pin.
  • a U-shaped connecting bracket is fastened across the armature with both ends in the base body, a first leg forming the connecting pin and a second leg forming a retaining pin for the contact spring connected to the connecting pin.
  • This U-shaped connection bracket is expediently plugged into the base body, while the separate connection and retaining pin of the former contact spring can be embedded in the base body.
  • the relay shown in FIGS. 1 and 2 has a base body 1 which has two coil bodies 2 and 3 connected in one piece and a contact space 4 formed between the two coil bodies.
  • a winding 23 is applied to the bobbin 2 between two flanges 21 and 22, and a winding 33 is applied to the bobbin 3 between flanges 31 and 32.
  • the two coils can be individually controlled and excited via separate winding connections.
  • a U-shaped contact plate 5 is fastened by insertion, which forms two external contact elements 51 and 52 in one piece and is guided with a connecting pin 53 through the base of the base body.
  • Another contact plate 6 forms a center contact element 61 and a connecting pin 62 which is guided through the bottom of the base body.
  • the external contact elements 51 and 52 are each provided with a contact piece, and the center contact element 61 is provided with two contact pieces.
  • two contact springs 7 and 8, which consist of leaf spring material, are arranged in the contact chamber 4. Each contact spring is bent at a fastening end to form an adapter sleeve and is attached to a connecting and holding pin 9 or 10. Contrary to the fastening ends, the contact springs each form contact-making ends 72 and 82, which are each provided with contact pieces on both sides and can be switched between the center contact element 61 and a respective counter-contact element 51 or 52.
  • the contact springs 7 and 8 are each biased towards the center contact element 61. Own in their middle part the contact springs each have an invisible cutout which is adapted to the curvature of the associated coil core and enables the contact spring to move freely above the coil core.
  • a yoke-armature assembly is placed on the bobbin provided with windings and contact elements. It consists of a yoke 12 with two side sections 121 and 122 and an elongated central section 123. This yoke is plugged onto the coil flanges 21 and 31. An anchor 13 is also mounted on the central section 123 of the yoke and is held in corresponding bearing notches of the yoke with retaining tabs 131 and 132.
  • Switch cams 134 are formed on both sides of the armature 13 and are used to actuate the contact springs 7 and 8. The function can thus be recognized from the constructive design.
  • both contact springs 7 and 8 rest with their contacting ends on the center contact element 61.
  • the armature is attracted to an associated core 14 or 15, whereby it brings the associated contact spring 7 or 8 into contact with the corresponding external contact element 51 or 52.
  • the respective other contact spring remains on the center contact element 61 or returns to it.
  • the two retaining pins 9 and 10 are also used as connecting pins for the two contact springs, such that the switching current flows through one or the other retaining pin, the current loop formed in this way in the iron circuit of Kern can be used for very high switching currents.
  • Yoke and armature generate such a strong additional magnetic field that under certain circumstances the armature in the circuit in question no longer drops even after the excitation is switched off.
  • a Additional connector pin 110 is provided in the area between the armature 13 and the coil winding 33, which overlaps the armature via a bracket section 111 and is connected to the holding pin 9 of the contact spring 7.
  • the connecting pin 110 forms with the bracket section 111 and the holding pin 9 a U-shaped connecting bracket, which is fastened in the base body by insertion.
  • fasten a connecting pin 110 and a holding pin 9 as well as the holding and connecting pin 10 in the base body by embedding and to bend a bracket section 111 over the anchor and to weld or otherwise fasten it to the opposite part in each case.
  • the switching current I flows in the two contact springs and in their connecting pins in the opposite direction. Since the two connecting pins 10 and 110 are now on one side of the armature in the iron circuit of the winding 33, their current loop effects essentially cancel each other out, while in the iron circuit of the winding 23 there is no current loop effect as long as the holding pin 9 does not carry the switching current. However, if a current loop effect is to be produced in a targeted manner, the holding pin 9 can also be used as a connecting pin instead of the pin 110. It is particularly conceivable to connect both pins 9 and 110 in parallel outside the relay and thus to conduct half of the switching current through each of the pins. This current division results in a loop effect of about 50% compared to the full loop effect, which in certain load cases, e.g. B. with lamp load, can be advantageous.
  • FIG. 3 shows a slight modification compared to Figure 2, an individual relay, in which a retaining pin is also arranged between the armature and the now single coil, but the current loop effect is switched off.
  • a base body 201 carries a coil body 202 with a winding 223, a core 214 and a yoke 212.
  • An armature 213 is mounted on the yoke 212 in a manner similar to that in the embodiment in FIG.
  • a contact spring 207 is fastened between the armature 213 and a coil flange 222. This contact spring 207 is switchable between two mating contact elements 251 and 261.
  • the entire structure is similar to the relay described above, except that the second coil system is missing and accordingly the base body and the yoke are only approximately half as large as in the previous case and the other parts are adapted accordingly.
  • the contact spring 7 is fastened on a holding pin 209, but the current is supplied via a connecting pin 210 which is conductively connected to the contact spring via a bracket section 211.
  • the connecting pin 210 with the bracket portion 211 and the retaining pin 209 is formed in one piece as a U-shaped wire element which is fastened in the base body 201 by insertion.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Surgical Instruments (AREA)
  • Valve Device For Special Equipments (AREA)
  • Cookers (AREA)
EP93909803A 1992-06-17 1993-06-01 Elektromagnetisches relais Expired - Lifetime EP0646282B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4219933 1992-06-17
DE4219933A DE4219933A1 (de) 1992-06-17 1992-06-17 Elektromagnetisches Relais
PCT/DE1993/000470 WO1993026030A1 (de) 1992-06-17 1993-06-01 Elektromagnetisches relais

Publications (2)

Publication Number Publication Date
EP0646282A1 EP0646282A1 (de) 1995-04-05
EP0646282B1 true EP0646282B1 (de) 1997-03-26

Family

ID=6461270

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93909803A Expired - Lifetime EP0646282B1 (de) 1992-06-17 1993-06-01 Elektromagnetisches relais

Country Status (7)

Country Link
US (1) US5612658A (cs)
EP (1) EP0646282B1 (cs)
JP (1) JPH07507654A (cs)
AT (1) ATE150900T1 (cs)
CZ (1) CZ283883B6 (cs)
DE (2) DE4219933A1 (cs)
WO (1) WO1993026030A1 (cs)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19532762A1 (de) * 1995-09-05 1997-03-06 Siemens Ag Elektromagnetisches Laststromrelais und Anordnung eines derartigen Relais auf einer Leiterplatte
JP3593774B2 (ja) * 1996-01-09 2004-11-24 オムロン株式会社 電磁継電器
DE19747167C1 (de) * 1997-10-24 1999-04-29 Siemens Ag Elektromagnetisches Relais
JP4289301B2 (ja) * 2005-01-13 2009-07-01 オムロン株式会社 電磁継電器
US7517235B2 (en) * 2006-12-28 2009-04-14 General Electric Company Press fit connection for mounting electrical plug-in outlet insulator to a busway aluminum housing
JP2011108452A (ja) * 2009-11-16 2011-06-02 Fujitsu Component Ltd 電磁継電器
GB201402560D0 (en) * 2014-02-13 2014-04-02 Johnson Electric Sa Improvements in or relating to electrical contactors
JP6631068B2 (ja) * 2015-07-27 2020-01-15 オムロン株式会社 接点機構およびこれを用いた電磁継電器

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1036914B (de) * 1956-10-11 1958-08-21 Werk Fuer Fernmeldewesen Veb Schaltrelais fuer UEbertragungstechnik und Elektronik
DE3124412C1 (de) * 1981-06-22 1989-01-12 Hendel, Horst, Ing. (grad.), 8031 Eichenau Polarisiertes elektromagnetisches Kleinrelais
US4529953A (en) * 1982-09-01 1985-07-16 Electromation, Inc. Electrical switch
US4816794A (en) * 1986-07-30 1989-03-28 Omron Tateisi Electronics Co. Electromagnetic relay
US4959627A (en) * 1987-12-23 1990-09-25 Nec Corporation Electromagnet relay
DE3834283A1 (de) * 1988-10-08 1990-04-12 Bosch Gmbh Robert Umschaltrelais fuer gleichstrommotore mit links- und rechtslaufsteuerung
EP0593599B1 (de) * 1991-07-09 1995-02-15 Siemens Aktiengesellschaft Elektromagnetisches umschaltrelais
DE4122704C2 (de) * 1991-07-09 1993-12-16 Siemens Ag Elektromagnetisches Relais

Also Published As

Publication number Publication date
CZ298194A3 (en) 1995-04-12
US5612658A (en) 1997-03-18
DE4219933A1 (de) 1993-12-23
ATE150900T1 (de) 1997-04-15
JPH07507654A (ja) 1995-08-24
WO1993026030A1 (de) 1993-12-23
DE59305970D1 (de) 1997-04-30
CZ283883B6 (cs) 1998-06-17
EP0646282A1 (de) 1995-04-05

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