EP1058937A1 - Relais electromagnetique - Google Patents

Relais electromagnetique

Info

Publication number
EP1058937A1
EP1058937A1 EP99932424A EP99932424A EP1058937A1 EP 1058937 A1 EP1058937 A1 EP 1058937A1 EP 99932424 A EP99932424 A EP 99932424A EP 99932424 A EP99932424 A EP 99932424A EP 1058937 A1 EP1058937 A1 EP 1058937A1
Authority
EP
European Patent Office
Prior art keywords
contact
relay
sensor element
mechanical contact
electronic
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
EP99932424A
Other languages
German (de)
English (en)
Other versions
EP1058937B1 (fr
Inventor
Florenz Von Guttenberg
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.)
TE Connectivity Solutions GmbH
Original Assignee
Tyco Electronics Logistics 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 Tyco Electronics Logistics AG filed Critical Tyco Electronics Logistics AG
Publication of EP1058937A1 publication Critical patent/EP1058937A1/fr
Application granted granted Critical
Publication of EP1058937B1 publication Critical patent/EP1058937B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
    • H01H9/541—Contacts shunted by semiconductor devices
    • H01H9/542—Contacts shunted by static switch means

Definitions

  • the invention relates to an electromagnetic relay with a magnet system, a mechanical contact, coil and contact connection elements and an electronic contact.
  • a parallel connection of an electromechanical relay and a semiconductor relay to avoid contact erosion in electromechanical contacts to increase the contact life and reduce the expensive contact material is already known as a possible solution.
  • Such a hybrid relay is described for example in JP-PS-57 54 34.
  • a light-emitting diode is connected on the control side parallel to the excitation coil of the electromechanical relay, which drives a photo cell on the load side of the semiconductor relay. This photocell is used to trigger a triac, which is connected in parallel to the mechanical contact actuated by the excitation coil and which represents the electronic contact.
  • the invention has for its object to provide a relay with a compact structure and with inexpensive to implement means to avoid contact erosion on electromechanical contacts during switching operations.
  • the aim of such a relay is to reduce the power loss.
  • a magnet system containing an excitation coil, a core and an armature, the core and the armature forming at least one working air gap,
  • a mechanical contact consisting of at least one movable contact element and at least one fixed contact element
  • a magnetic field sensitive sensor element which has means for generating a voltage dependent on the magnetic field of the excitation coil
  • a reduction in the power loss is achieved in the relay according to the invention by the parallel connection of the mechanical contact to the electronic switch.
  • Another 3 Advantage of the solution according to the invention is that a previously required additional control element for the electronic contact is now eliminated, which results in considerable cost advantages.
  • the excitation coil controls both the mechanical contact and the electronic contact via the magnetic field-sensitive sensor element.
  • a timer for coordinating the control of the mechanical contact and the electronic contact can be dispensed with if the relay components are suitably dimensioned and arranged.
  • the mechanical contact switches with a time delay with only a minimal load voltage, which relieves the electronic contact of the current.
  • the relief of the electronic contact results in a reduction in the power loss.
  • the electronic contact controlled by the sensor element remains closed somewhat longer than the mechanical contact, since the magnetic field is retained over the time the mechanical contact is opened. In an advantageous embodiment, this can be achieved in particular by means of a diode connected in parallel with the excitation coil, so that the current through the coil is briefly maintained even after the excitation voltage has been switched off.
  • a Hall sensor is preferably used to implement the sensor element.
  • a magnetoresistive sensor can be used.
  • the mechanical contact and the electronic contact can be arranged together with the magnet system in a housing or can be connected to one another by an external connection.
  • an npn- 4 transistor can be used as a switching element, because in this way it is possible to implement very short switching times for the electronic contact.
  • the use of other bipolar, MOS or FET transistor types as well as the use of triacs or thyristors as switching elements is also possible.
  • the electronic contact is preferably coupled to the sensor element via an additional amplifier for signal processing.
  • FIG. 1 shows the schematic structure of a relay
  • Figure 2 shows a typical course of the timing control behavior of the relay according to the invention.
  • the relay shown in Figure 1 has a magnet system with an excitation coil 1, with a core 2 and a movable armature 3, which forms a working air gap with the core 2.
  • the armature movement is transmitted to a mechanical contact 5 via an actuating element 7, which consists of insulating material.
  • the mechanical contact 5 itself has a fixed and a movable contact element, which are each connected to contact connection elements 9.
  • the coil 1 is excited by applying a control voltage to the coil connection elements 10.
  • a magnetic field-sensitive sensor element 4 - here a Hall sensor - is arranged on an armature-side end of the coil 1 in the vicinity of the working air gap.
  • This sensor element 4 controls an electronic contact 6 via a measuring amplifier 8, which is connected in parallel to the mechanical contact 5.
  • Figure 2 illustrates the control behavior of the mechanical contact and the electronic contact connected in parallel.
  • Curve A shows the course over time of an excitation voltage which has an L level before the excitation is switched on and which is at an H level while the excitation is switched on.
  • rt tr t " 1 PJ -QN rr N cn ⁇ rt rsi p, rt Cn PJ PJ O: d 3 d ⁇ -i ⁇ K

Landscapes

  • Relay Circuits (AREA)

Abstract

L'invention concerne un relais électromagnétique qui comprend un système d'aimant, un élément capteur (4) sensible au champ magnétique, un contact mécanique (5) et un contact électronique (6), commuté parallèlement au contact mécanique (5). Le système d'aimant comprend une bobine excitatrice (1), un noyau (2) et un induit (3). Le noyau (2) et l'induit (3) forment au moins une discontinuité magnétique fonctionnelle. Le contact mécanique (5) comprend au moins un élément de contact mobile et au moins un élément de contact fixe. L'élément capteur (4) comporte un dispositif qui permet de générer une tension dépendante du champ magnétique de la bobine excitatrice.
EP99932424A 1998-02-02 1999-01-18 Relais electromagnetique Expired - Lifetime EP1058937B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19803992 1998-02-02
DE19803992A DE19803992C2 (de) 1998-02-02 1998-02-02 Elektromagnetisches Relais
PCT/DE1999/000099 WO1999039360A1 (fr) 1998-02-02 1999-01-18 Relais electromagnetique

Publications (2)

Publication Number Publication Date
EP1058937A1 true EP1058937A1 (fr) 2000-12-13
EP1058937B1 EP1058937B1 (fr) 2002-04-03

Family

ID=7856379

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99932424A Expired - Lifetime EP1058937B1 (fr) 1998-02-02 1999-01-18 Relais electromagnetique

Country Status (4)

Country Link
EP (1) EP1058937B1 (fr)
DE (2) DE19803992C2 (fr)
ES (1) ES2172338T3 (fr)
WO (1) WO1999039360A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002158573A (ja) * 2000-11-17 2002-05-31 Yazaki Corp 負荷駆動装置及び負荷回路の駆動方法
KR101146277B1 (ko) 2005-12-16 2014-02-27 동부대우전자 주식회사 드럼세탁기의 세탁물 건조상태 체크구조
DE102018220852B4 (de) * 2018-12-03 2024-03-28 Vega Grieshaber Kg Signalübertragung einer Steuergerätanordnung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS575434A (en) * 1980-06-12 1982-01-12 Matsushita Electric Works Ltd Output hybrid type solid-state relay
US4420784A (en) * 1981-12-04 1983-12-13 Eaton Corporation Hybrid D.C. power controller
DE3242040A1 (de) * 1982-11-13 1984-05-17 FOBA Formenbau GmbH, 5880 Lüdenscheid Schaltanordnung zum ein- und ausschalten eines elektrischen verbrauchers
FR2587140B1 (fr) * 1985-09-06 1989-06-09 Hager Electro Dispositif d'assistance a la commutation electrique, notamment pour relais a contacts ou contacteurs ou autres moyens de telecommande similaires
NO168009C (no) * 1988-09-19 1994-06-21 Sverre Lillemo Elektrisk koplingsanordning.
US5081558A (en) * 1990-02-02 1992-01-14 Northrop Corporation High voltage DC relays
DE4314009A1 (de) * 1993-04-23 1994-11-03 System Elektronik Gmbh Berlin Schaltung
DE4417482C1 (de) * 1994-05-19 1995-10-12 Kostal Leopold Gmbh & Co Kg Elektrische Schaltungsanordnung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9939360A1 *

Also Published As

Publication number Publication date
WO1999039360A1 (fr) 1999-08-05
DE59901117D1 (de) 2002-05-08
EP1058937B1 (fr) 2002-04-03
ES2172338T3 (es) 2002-09-16
DE19803992C2 (de) 1999-12-02
DE19803992A1 (de) 1999-08-19

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