EP0275493B1 - Elektromagnetischer Antrieb für ein Schaltgerät sowie Herstellungsverfahren für einen anschlussbereit bestückten Spulenkörper dieses Antriebes - Google Patents

Elektromagnetischer Antrieb für ein Schaltgerät sowie Herstellungsverfahren für einen anschlussbereit bestückten Spulenkörper dieses Antriebes Download PDF

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Publication number
EP0275493B1
EP0275493B1 EP87118636A EP87118636A EP0275493B1 EP 0275493 B1 EP0275493 B1 EP 0275493B1 EP 87118636 A EP87118636 A EP 87118636A EP 87118636 A EP87118636 A EP 87118636A EP 0275493 B1 EP0275493 B1 EP 0275493B1
Authority
EP
European Patent Office
Prior art keywords
winding
closing flange
depressions
coil former
allocated
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
EP87118636A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0275493A1 (de
Inventor
Georgi Dipl -Ing. Cwetanski
Reiner Dipl.-Ing.(Fh) Dick
Peter Dr.Dipl.-Ing. Hoyer
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.)
ASEA BROWN BOVERI AKTIENGESELLSCHAFT
Original Assignee
Asea Brown Boveri AG Germany
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 Asea Brown Boveri AG Germany filed Critical Asea Brown Boveri AG Germany
Publication of EP0275493A1 publication Critical patent/EP0275493A1/de
Application granted granted Critical
Publication of EP0275493B1 publication Critical patent/EP0275493B1/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
    • H01H50/02—Bases; Casings; Covers
    • H01H50/021—Bases; Casings; Covers structurally combining a relay and an electronic component, e.g. varistor, RC circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/44—Magnetic coils or windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/44—Magnetic coils or windings
    • H01H2050/446—Details of the insulating support of the coil, e.g. spool, bobbin, former

Definitions

  • the invention relates to an electromagnetic drive serving to actuate a switching device with a coil body provided for receiving an inductive winding, on the longitudinal ends of which rectangular, frame-shaped end flanges are formed, at least one of which with additional formations for receiving winding connections for the power supply of the Winding is equipped.
  • the magnetic drives for switchgear in particular for contactors for industrial systems, are usually excited with alternating current and - due to the mains frequency of the alternating current - have the peculiarity of vibrating or slightly buzzing when excited.
  • the extent of these vibrations and therefore the noises depends, for example, on the installation position of the switching device or contactor, but very much also on its life span and not least also on special design features.
  • These vibrations, at least as far as the noise is concerned, can be accepted in the industrial sector, however, in residential systems, these noises are perceived as quite annoying, especially in the after hours. Nevertheless, there is an increasing need in the field of house installations to use contactors for switching, for example, night storage heaters, lighting systems and the like.
  • Electromagnetic switching devices driven with direct current or a pulsating direct current are significantly quieter than comparable AC-operated switching devices.
  • a DC voltage - whatever characteristic - is not available on the network side.
  • a rectifier unit can be provided, from which the individual switching devices to be controlled are supplied with a DC voltage or with a rectified voltage.
  • this is uneconomical Systems in which only a few switching devices of the type mentioned are used, possibly only one or two switching devices.
  • a circuit arrangement for rectifying the supplied AC voltage within the switching device is desirable and technically feasible.
  • a certain space is required, not only to accommodate the carrier for the circuit elements mentioned, but also the supply lines required here and, last but not least, holders for the said carrier.
  • the connections of the ends of the winding must also be included in the necessary measures in the case of equipping the switching device with corresponding circuit elements for voltage rectification, since in the latter case they are not directly connected to the AC voltage supplied from the outside.
  • the object of the invention is to provide an electromagnetic drive for a low-voltage switching device with the low-noise properties of a direct current operation, the coil body of which - while maintaining the same winding data within a certain spectrum of supplied control voltage - can be fitted ready for operation either for a direct current connection or for an alternating current connection, in addition to the required functional elements, the smallest possible number of individual parts should be required for the production of the complete coil body.
  • the invention has for its object to provide a particularly economical manufacturing process for a ready-to-use or ready-to-connect bobbin with the properties just described as desirable.
  • a Such a design of the coil body or one of its end flanges saves additional parts for accommodating circuit elements and overall offers a very space-saving design for the switching device or its electromagnetic drive.
  • the complete coil body even if it is to be combined with circuit elements, represents a very compact assembly, the wiring of which is largely protected, so that the risk of collisions with other, in particular moving parts of the switching device is largely excluded.
  • connection pillars for supplying power to the winding with contacting connection elements, from each of which a connection lug originates, which can be guided to one of the recesses for receiving solder joints.
  • the winding ends are therefore never inserted directly into the connection pillars, but instead with connection lugs emanating from the connection elements (which, however, very much probably designed as an extension of a connection element and thus can be connected "in one piece” to it, or instead also connected to circuit elements, which in turn are then connected to one of the connection elements.
  • a particularly economical and also largely automated manufacture of a complete bobbin can be realized according to the present invention by a manufacturing method, the characteristic method steps of which can be found in the characterizing part of claim 4.
  • FIG. 1 shows a perspective view of a coil body 10 as can be used for the electromagnetic drive of a switching device, in particular a smaller contactor.
  • This bobbin 10 is a one-piece plastic injection molded part and is composed essentially of the following shaped elements, namely a winding sleeve 11 which is essentially rectangular in cross section, a comparatively thin-walled end flange 12 and a further, substantially thicker end flange 13 in its basic structure. Both end flanges 12 and 13 have, at least as far as their walls delimiting a winding space 14 have an almost rectangular peripheral contour with rounded corner areas. Only the thicker end flange 13 is of interest here.
  • This last-mentioned end flange 13 has connecting columns 15 and 16 extending from the two upper corner regions in the illustration, which run parallel to one another in the direction of the essential extension plane of the end flange and, as can be seen, protrude significantly beyond the circumferential contour of the end flange 13.
  • a core opening 17 for receiving an iron core penetrates the entire coil body 10, that is to say both both end flanges 12 and 13 and the winding tube 11.
  • recesses 18, 19, 20 and 21 are mentioned for receiving circuit elements, further recesses 22 to 29 inclusive are provided for receiving connecting wires of the circuit elements mentioned and finally recesses 30, 31, 32 and 33 in the corner regions of the end flange 13 serve to accommodate bundles of wires which are soldered to one another after the soldering process 30 to 33 are bent into these recesses.
  • a fourth group of recesses is used to receive and guide the winding ends of the winding, and these are channel-like recesses 34, 35 and 36.
  • the recesses 35 and 36 serve to start the winding, and that is, depending on requirements, one or the other of the recesses used.
  • the recess 34 serves to receive the winding end.
  • openings 39 and 40 are to be mentioned in the connection columns 15 and 16. These openings 39 and 40 serve to accommodate connection elements, as will be explained below.
  • Such a coil former 10 can now only be provided with connection elements on the connection columns 15 and 16 and with a winding in the winding space 14, the two ends of the winding being guided in the recesses 34 and 35 and from there into the recesses 30 and 31.
  • these recesses 30 and 31 they are soldered to the mentioned connection elements or to the outgoing leads, these solder joints are then bent into their associated recesses 30 and 31, and thus the coil body 10 is shown as a ready-to-install assembly in a switching device This is the case when the winding - A DC voltage or a rectified AC voltage is to be supplied via the connection elements mentioned.
  • the coil former 10 can also be equipped with additional circuit elements, which can be seen in the illustration in FIG. 2 .
  • connection elements 41 and 42 are equipped with connection elements 41 and 42, the exact design of which is not recognizable and is also not the subject of the invention. From these connection elements 41 and 42 each lead from 43 or 44, which are inserted into associated recesses in one of the corner regions of the end flange 13; in the present case the feed line 43 is inserted into the depression 30 and the feed line 44 into the adjacent depression 31.
  • the coil former 10 is now equipped with electrical or electronic circuit elements 45, 46, 47 and 48 which fit into the assigned depressions 18, 19 , 20 and 21 are inserted.
  • the connecting wires (not numbered) assigned to these circuit elements 45 to 48 are inserted into the corresponding recesses 22 to 29, in such a way that their (advantageously before her) angled ends project approximately perpendicularly above the outer plane of extent of the end flange 13, which can also be seen from the illustration. In practice, however, these wire ends are very close together and form a kind of wire bundle. The position of the individual, protruding wire ends relative to one another has not been shown in this way for illustrative purposes only.
  • Said connecting wires of the circuit elements are now fixed in the assigned recesses, namely by means of a deforming tool or instead by means of additionally inserted means, such as for example an adhesive, a putty, casting resin or the like.
  • a deforming tool a tool that slightly melts the plastic or instead a cutting tool can also be used, in the latter case a kind of "caulking effect" can be achieved.
  • the winding 50 which is now recognizable, is then wound in a known manner and finally fills the winding space 14 of the bobbin 10.
  • the end 51 of the winding wire is led out through the groove-like recess 34 and finally into the recess 30 in the upper left corner area (based on the illustration) of the end flange 13.
  • FIG. 3 The connection of this end 51 of the winding wire and also of the beginning 49 of the winding wire to the other wire ends or to the wire bundle already mentioned is illustrated in FIG. 3.
  • a circuit element 52 there is a circuit element 52, a connecting wire emanating therefrom 53 and other connecting wires 54 and 55 can be seen.
  • an end 56 (or a beginning) of a winding wire can be seen, which is wound around the wire bundle from the connecting wires 53, 54 and 55.
  • both the mentioned wire ends of the connecting wires and the winding end are adhesively connected to one another.
  • provisional As is well known, such liability is not permanent and should therefore only be regarded as a "provisional" connection.
  • the coil former 10 equipped in this way is fed to an immersion solder bath, in such a way that the wire bundles immerse in a solder bath in the four corner regions of the end flange 13, but not the end flange 13 and also not the circuit elements 45 to 48.
  • the wire bundles which are now permanently connected to one another, are bent in the corner regions of the end flange 13 in the depressions 30 to 33, from which they initially protrude. This bending is preferably to be carried out in such a way that the individual soldered wire bundles spring back at least slightly in relation to the outer wall plane of the end flange (13).
  • circuit elements 45 to 48 it should be said that four individual circuit elements are used only in the exemplary embodiment shown here; however, fewer circuit elements may also be necessary. However, circuits with more than four circuit elements are also conceivable, the number of depressions 18 to 21 for receiving circuit elements in the end flange 13 having to be increased accordingly in such cases. Additional recesses outside the corner areas of the end flange 13 for accommodating additional soldering points are also conceivable and can be subordinated to the concept of the invention.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
EP87118636A 1986-12-23 1987-12-16 Elektromagnetischer Antrieb für ein Schaltgerät sowie Herstellungsverfahren für einen anschlussbereit bestückten Spulenkörper dieses Antriebes Expired - Lifetime EP0275493B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863644113 DE3644113A1 (de) 1986-12-23 1986-12-23 Elektromagnetischer antrieb fuer ein schaltgeraet sowie herstellungsverfahren fuer einen anschlussbereit bestueckten spulenkoerper dieses antriebes
DE3644113 1986-12-23

Publications (2)

Publication Number Publication Date
EP0275493A1 EP0275493A1 (de) 1988-07-27
EP0275493B1 true EP0275493B1 (de) 1992-08-05

Family

ID=6317008

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87118636A Expired - Lifetime EP0275493B1 (de) 1986-12-23 1987-12-16 Elektromagnetischer Antrieb für ein Schaltgerät sowie Herstellungsverfahren für einen anschlussbereit bestückten Spulenkörper dieses Antriebes

Country Status (2)

Country Link
EP (1) EP0275493B1 (enrdf_load_stackoverflow)
DE (2) DE3644113A1 (enrdf_load_stackoverflow)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9110706U1 (de) * 1991-08-29 1993-01-07 Siemens AG, 8000 München Spule für den elektromagnetischen Antrieb eines Schaltgerätes
DE9110707U1 (de) * 1991-08-29 1993-01-07 Siemens AG, 8000 München Spule für den elektromagnetischen Antrieb eines Schaltgerätes
DE9213889U1 (de) * 1992-10-14 1994-02-10 Siemens AG, 80333 München Spule für ein elektromagnetisches Relais
FR2725832B1 (fr) * 1994-10-17 1997-01-03 Schneider Electric Sa Appareil contacteur
FR2737604B1 (fr) * 1995-08-04 1997-08-29 Schneider Electric Sa Appareil contacteur equipe d'une bobine a deux enroulements
FR2737603A1 (fr) * 1995-08-04 1997-02-07 Schneider Electric Sa Appareil contacteur
FR2746541B1 (fr) * 1996-03-25 1998-04-24 Schneider Electric Sa Appareil contacteur et montage de ses elements a l'interieur de son enveloppe
KR20000010803A (ko) * 1996-05-07 2000-02-25 칼 하인쯔 호르닝어 하이브리드 릴레이
DE19700521C2 (de) * 1997-01-09 1998-10-15 Siemens Ag Kommunikationsfähiges Schütz mit elektronisch gesteuertem Antrieb

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB942162A (en) * 1961-06-06 1963-11-20 H M C Of Hartford Ltd Electric relays
US3209095A (en) * 1961-12-01 1965-09-28 Guardian Electric Mfg Co Spring-biased clapper type industrial power relay
DE2112085A1 (de) * 1971-03-12 1972-09-14 Siemens Ag Elektromagnetisches Relais
DE2420034A1 (de) * 1974-04-25 1975-11-06 Licentia Gmbh Elektromagnetisches schaltgeraet
US4112405A (en) * 1976-08-16 1978-09-05 Mark Joseph Coil with protection against overheating
DE2704587C2 (de) * 1977-02-04 1983-04-28 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schütz
DE2916639C2 (de) * 1979-04-25 1983-01-20 Peter 7530 Pforzheim Hofsäss Spulenkörper mit einem Wärmeschutzschalter
DE3040536C2 (de) * 1980-10-28 1984-08-09 Norbert 5275 Bergneustadt Weiner Spulenkörper
DD201067A1 (de) * 1981-11-20 1983-06-29 Henry Baumruker Spule fuer elektromagnetische schaltgeraete
DE3510588A1 (de) * 1985-03-23 1986-09-25 Brown, Boveri & Cie Ag, 6800 Mannheim Elektromagnetisch betaetigbares schaltgeraet und verfahren zur herstellung von dessen anschlusskontaktstellen

Also Published As

Publication number Publication date
EP0275493A1 (de) 1988-07-27
DE3780939D1 (de) 1992-09-10
DE3644113A1 (de) 1988-07-07
DE3644113C2 (enrdf_load_stackoverflow) 1990-10-18

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