EP0746007A2 - Relais électromagnétique polarisé - Google Patents

Relais électromagnétique polarisé Download PDF

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Publication number
EP0746007A2
EP0746007A2 EP96108869A EP96108869A EP0746007A2 EP 0746007 A2 EP0746007 A2 EP 0746007A2 EP 96108869 A EP96108869 A EP 96108869A EP 96108869 A EP96108869 A EP 96108869A EP 0746007 A2 EP0746007 A2 EP 0746007A2
Authority
EP
European Patent Office
Prior art keywords
base
armature
relay according
coil
base body
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
EP96108869A
Other languages
German (de)
English (en)
Other versions
EP0746007B1 (fr
EP0746007A3 (fr
Inventor
Heinz Stadler
Michael Dittmann
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
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 Tyco Electronics Logistics AG, Siemens AG filed Critical Tyco Electronics Logistics AG
Publication of EP0746007A2 publication Critical patent/EP0746007A2/fr
Publication of EP0746007A3 publication Critical patent/EP0746007A3/fr
Application granted granted Critical
Publication of EP0746007B1 publication Critical patent/EP0746007B1/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
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2272—Polarised relays comprising rockable armature, rocking movement around central axis parallel to the main plane of the armature
    • H01H51/2281—Contacts rigidly combined with armature
    • H01H51/229—Blade-spring contacts alongside armature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/026—Details concerning isolation between driving and switching circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
    • H01H11/0031—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for allowing different types or orientation of connections to contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H2001/5888—Terminals of surface mounted devices [SMD]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/023—Details concerning sealing, e.g. sealing casing with resin
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/14—Terminal arrangements

Definitions

  • a relay of the type mentioned is described in WO 94/22156.
  • a bobbin is placed directly on the base, which in addition to the coil winding and the core also carries the yokes and the permanent magnet and which is connected directly to the base in side areas.
  • a cap placed over the bobbin is connected to the base to form a closed housing.
  • This known structure is designed for conventional solder connection technology; for stronger mechanical or thermal loads, however, the connection structure of the base and the coil body is not designed.
  • relays should, as far as possible, be able to withstand the mechanical and thermal loads occurring with these techniques without their construction the precisely set characteristic values of the relay deteriorate.
  • the aim of the present invention is to construct a polarized relay of the type mentioned in such a way that on the one hand the insulation between the contacts and the coil is improved and on the other hand the construction is made more stable overall, so that the desired characteristics of the relay are set in a simpler manner and safer to maintain when handling or operating the relay.
  • a basic construction is to be created which is suitable only for the installation of different connection elements both for solder pin connection and for SMT connection and for press-in connection.
  • this aim is achieved in the aforementioned relay structure in that a base body made of insulating material is provided, which forms a partition parallel to the base plane - with bushings for the yokes - between the armature and the coil, that the base body has side walls with the base is nested and forms an at least partially closed switching space with it and that the base body has a shoulder on both sides of the armature, under which the contact pins arranged in a row are located and which is suitable as a support area for these pins if necessary.
  • the base body provided according to the invention results in a high rigidity and stability of the relay structure.
  • the adjustments made during production are thus reliably retained, even if mechanical or thermal loads act on the relay housing from the outside.
  • the construction according to the invention is particularly effective when connecting pins are used which extend vertically upwards from the base to the respective support region of the base body.
  • the connecting pins are fixed in each case in grooves in the base body and there by means of a hardenable sealing compound. So it is possible that after the assembly of the armature with a precise adjustment of the contact spacing of the base, the magnet system connected to the base body can be pushed onto the base until the armature lies exactly against the magnet system or has reached the specified air gaps to the yokes .
  • the base body By pouring in adhesive or potting compound, on the one hand, the base body can then be sealingly connected to the base, the connecting pins being cast in the grooves mentioned in a preceding or simultaneous operation.
  • This control room also has compared to similarly constructed Relay has a very low air volume because the coil space is not included. This is particularly advantageous in the case of strong heat, such as when soldering the relay, in particular when reflow soldering SMT connections.
  • the base body thus forms closed side walls at least around the contact space, so that the housing cap which would otherwise be required can be dispensed with.
  • An embodiment in which the base body has an H-shaped cross section and thus also accommodates the coil in an upwardly open, trough-shaped coil space is particularly advantageous.
  • This coil space is expediently completely or at least partially filled with potting compound, which further increases the rigidity of the construction.
  • the relay is provided with press-in connection pins which are anchored in the base body in the manner mentioned above.
  • the press-in tool can press directly onto the encapsulated coil space, the press-in forces being transmitted to the connecting pins via the base body and there being no fear of impairment of the adjustments in the relay.
  • a cover plate can be attached to the top of the coil space.
  • This can be metallic or have a metallic outer layer in order to act as a heat shield, in particular in the case of surface mounting (SMT).
  • the relay shown in FIGS. 1 to 3 essentially consists of a base 1 with an armature 3 pivotably arranged above the base.
  • a base body 5 receives the base 1 from below and forms a closed contact space 4 with it.
  • the base body 5 an upwardly open coil space 6, in which a coil 7 is inserted.
  • the base 1 has a flat bottom 11, which defines the base level of the relay, and partially raised peripheral sides 12.
  • contact carriers 13 with exposed fixed contacts 14 are punched out parallel to the base level 8 and punched out; in one piece with the contact carriers, connection pins 15 are formed downwards, which usually serve as solder connections.
  • contact spring connecting pins 16 are embedded from the board material, the extensions of which serve upward as bearing supports 16 a for the armature 3.
  • the armature 3 consists of an essentially elongated ferromagnetic sheet which has an upwardly curved bearing curvature 31 in its central section to define a rolling axis running transversely to its longitudinal extent.
  • the two wings of the armature each define pole faces 32 in their end sections.
  • a movable contact arrangement with an insulating jacket 33 is arranged, in which two elongated contact springs 34 are embedded in a plane next to each other, such that their ends are exposed below the armature ends and each carry movable contacts 35, which with the underlying fixed contacts 14 work together.
  • Each contact spring has an im Lateral area emerging from the sheath 33, in the area of the armature bearing arched and angled into a vertical position, the bearing band 36, which is welded to an associated contact spring connecting pin 16 with a corresponding fastening section 37 or is conductively connected to it in some other way.
  • the insulating sheath 33 has upwardly formed pins 38 which are inserted through bores in the armature 3 and deformed on the upper side thereof, so that the movable contact arrangement with the contact springs 34 is firmly connected to the armature 3 and thus takes part in its switching movement.
  • the desired contact distance between the movable contacts 35 and the fixed contacts 14 is first set in a suitable manner before the bearing strips 36 are connected to the connecting pins 16.
  • the base body 5 made of insulating material has a generally H-shaped cross section with a partition 51 parallel to the base plane and circumferential side walls 52, which together with the partition 51 form the switching space 4 mentioned below and the coil space 6 upwards.
  • two bushings 53 are recessed, in which two ferromagnetic yokes 54 are inserted standing vertically.
  • a rod-shaped permanent magnet 55 is fastened between clamping ribs 56 (see FIG. 3) between the lower ends of the two yokes 54.
  • the permanent magnet is magnetized in three poles in such a way that it generates a permanent magnet pole (N) in the center above the armature axis and two opposite poles (S) at both ends.
  • paragraphs 57 are formed below the partition 51, which lie above the connecting pins 15 and 16 and, if necessary, can serve as support areas for corresponding extended connecting pins. In any case, these paragraphs provide additional stiffening of the base body; special configurations will be described later.
  • the coil 7 has a coil body 71 made of insulating material, on which a winding 73 is arranged between flanges 72.
  • a core 74 is arranged in an axial through opening of the coil former.
  • each coil terminal pins 75 are anchored in the flanges 72.
  • the coil 7 is inserted from above into the coil space 6 of the base body, the coil connection pins 75 being inserted through corresponding holes 58 in the base body.
  • the coil is then fixed in the base body with potting compound, the yokes 54 and the permanent magnet 55 also being glued.
  • the bushings are also tightly sealed. Filling the coil space 6 with potting compound creates a very stable bond that can also absorb high mechanical forces.
  • a plate 76 is placed above the coil, which offers a flat surface for labeling.
  • the plate can be made of metal or be coated with metal so that it forms a heat shield when the relay is exposed to strong heat radiation, for example in SMT assembly.
  • the base 1 pre-assembled with the armature 3 is inserted into the switching space 4 of the base body, the side walls 52 of the base body engaging in a box shape over the side walls 12 of the base.
  • the base 1 is pushed in so far that the bearing curvature 31 bears more or less on the permanent magnet 55 and the armature can optionally abut one of the yokes.
  • the switching mobility of the armature can be checked by inserting a test pin through ventilation openings 17 (shown in FIG. 8) and measuring the switching movement.
  • two ventilation or test openings 17, one under each anchor wing, are provided. These are located in the middle between the two contact springs in the area of a raised insulating web 18.
  • the base 1 After setting the exact position between the armature and the permanent magnet or yoke, the base 1 is firmly connected to the base body 5, preferably by casting of potting compound or adhesive in the edge gap between the respective side walls.
  • the ventilation and test openings 17 can later be closed separately.
  • FIGS. 3, 4 and 5 for example, a groove 63 is formed in the contact space below the shoulders 57, which is delimited by the outer wall 52 of the base body and by a wall web 59.
  • This wall web 59 also forms an insulation between the metal parts of the armature and the connection elements or bearing strips 36 of the contact springs.
  • potting compound 63 can be poured into these grooves in order to firmly anchor projecting connecting pins in the base body; this also increases the rigidity.
  • FIG. 4 shows an embodiment of connection pins 20 which is inserted in the base area through the injected circuit board of the contact carrier 13 and is contacted in a suitable manner in openings 13a.
  • the connection pins 20 with a rectangular cross section are anchored at their upper end section 21 in the sealing compound 60 and are bent outwards with their lower ends in the form of SMT connection lugs 22.
  • round connecting pins 23 are anchored in the base in the same way and contacted with the carrier board 13.
  • the upper end sections 24 are anchored in the casting compound 60, while the lower ends in this case are deformed into press-in handles 25.
  • the press-in pins can also have a rectangular cross-section as in FIG. 4 or some other cross-sectional shape.
  • the relay according to FIGS. 4 and 5 has the same or similar structure as that shown previously; minor modifications are possible within the scope of the invention.
  • a particularly simple way of attaching and contacting the pins 20 and 23 is that in the Contact carrier 13 forming plate openings 13a are recessed, which have a slightly smaller cross section than the pins 20 and 23 to be inserted. Depending on the cross-sectional shape of the pins, these openings 13a are also round or rectangular.
  • the recesses 11a in the base 1 or in the base base 11, on the other hand, are somewhat larger in cross section than the pins 20 or 23, so that the edge of the openings 13a around the pins is somewhat exposed.
  • FIG. 5 a laterally protruding bearing journal 41 is additionally shown in the right half of the anchor representation, which lies in a bearing shell 61 of the base body or of the wall web 59.
  • the armature can, if necessary, be positioned more precisely in relation to the base body and the permanent magnet 55.
  • the storage is thus independent of the shape and properties of the bearing belts 36.
  • These bearing belts 36 are unnecessary in this case and can be replaced by a simple flexible connecting section 42, as shown in FIGS. 6 and 7.
  • the area of the armature bearing from FIG. 6 is shown again in detail in FIG. 9, the section here being moved somewhat outward into the side wall of the base body in order to show the bearing shell 61.
  • the meandering connecting section 42 has an integrally molded connecting pin 43 which is guided through an opening 19 in the base to the outside.
  • the opening 19 is closed and the connecting pin 43 is fixed by a locking pin 62 formed on the base body.
  • the bearing part of the armature is again shown schematically from the side.
  • connection section 42 is extrusion-coated in its horizontal and obliquely upward part by the sheath 33 of the contact arrangement, so that only the vertical part acts resiliently.
  • a closure piece 44 is sprayed onto the connection section.
  • FIG. 12 shows that a meandering or also differently shaped connection section 42 can also be connected to a solid connection pin 23 anchored in the base, similar to that in FIG. 5, instead of a molded-on thin connection pin.
  • the pin 23 is in this case inserted through a recess 45 of the connecting portion 42 and conductively connected to it in a manner not shown.
  • FIGS. 13 and 14 show a further modification in two detailed views, the armature being supported as before by a bearing journal 41 and the contact springs each having a round connection section 42, which runs from the armature to the outside as a torsion bar parallel to the bearing axis Pin 23 are connected.
  • FIGS. 15 and 16 A further modification of the armature bearing is shown in FIGS. 15 and 16, which largely correspond to the representation in FIGS. 6 and 7.
  • the armature is mounted on the permanent magnet 55 via an additional bearing piece 46, which forms a bearing cutting edge 47.
  • the armature has a bearing notch 48 formed in its axial area which, like the bearing cutting edge, has an obtuse angle of any kind or can also be rounded.
  • the contact springs In this case, 34 are connected to a connecting pin 23 via a meandering connecting section 42.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Electromagnets (AREA)
EP96108869A 1995-06-01 1996-05-29 Relais électromagnétique polarisé Expired - Lifetime EP0746007B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19520220 1995-06-01
DE19520220A DE19520220C1 (de) 1995-06-01 1995-06-01 Polarisiertes elektromagnetisches Relais

Publications (3)

Publication Number Publication Date
EP0746007A2 true EP0746007A2 (fr) 1996-12-04
EP0746007A3 EP0746007A3 (fr) 1998-04-15
EP0746007B1 EP0746007B1 (fr) 2000-04-19

Family

ID=7763482

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96108869A Expired - Lifetime EP0746007B1 (fr) 1995-06-01 1996-05-29 Relais électromagnétique polarisé

Country Status (4)

Country Link
US (1) US5673012A (fr)
EP (1) EP0746007B1 (fr)
JP (1) JPH08329810A (fr)
DE (2) DE19520220C1 (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19606884C1 (de) * 1996-02-23 1997-04-30 Schrack Components Ag Elektromagnetisches Relais
DE19635275C1 (de) * 1996-08-30 1998-02-05 Siemens Ag Polarisiertes Relais
DE19635277C1 (de) * 1996-08-30 1998-02-12 Siemens Ag Verfahren zur Herstellung des Ankerhubs eines Relais
JP2998680B2 (ja) * 1997-02-27 2000-01-11 日本電気株式会社 高周波リレー
DE19713659C1 (de) * 1997-04-02 1998-06-25 Siemens Ag Elektromagnetisches Relais
DE19719357C1 (de) * 1997-05-07 1998-10-22 Siemens Ag Elektromagnetisches Relais
DE19719355C1 (de) * 1997-05-07 1998-11-05 Siemens Ag Polarisiertes elektromagnetisches Relais
DE19727863C1 (de) * 1997-06-30 1999-01-21 Siemens Ag Elektromagnetisches Relais
DE19816878C2 (de) * 1998-04-17 2003-11-13 Hengstler Gmbh Zwillingsrelais
DE19825078C1 (de) * 1998-06-04 2000-03-09 Siemens Ag Polarisiertes elektromagnetisches Relais
DE19825077C1 (de) * 1998-06-04 2000-03-30 Siemens Ag Polarisiertes elektromagnetisches Relais
DE19837241C1 (de) * 1998-08-17 2000-07-27 Tyco Electronics Logistics Ag Elektromagnetisches Relais
DE19941402C1 (de) * 1999-08-31 2001-05-31 Tyco Electronics Logistics Ag Relais mit Wippanker
US7111929B2 (en) * 2001-08-14 2006-09-26 Hewlett-Packard Development Company, Lp Magnetically-actuated fluid control valve
DE102011083953A1 (de) * 2011-10-04 2013-04-04 Tyco Electronics Amp Gmbh Fixier- und Überwachungsvorrichtung
DE102011089251B4 (de) * 2011-12-20 2014-05-22 Siemens Aktiengesellschaft Auslöseeinheit zum Betätigen einer mechanischen Schalteinheit einer Vorrichtung
DE102012006436B4 (de) * 2012-03-30 2020-01-30 Phoenix Contact Gmbh & Co. Kg Gepoltes elektromagnetisches Relais und Verfahren zu seiner Herstellung
JP6115195B2 (ja) * 2013-03-08 2017-04-19 オムロン株式会社 電磁継電器
KR20210020336A (ko) * 2019-08-14 2021-02-24 현대자동차주식회사 릴레이

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0613163A2 (fr) * 1993-02-24 1994-08-31 Omron Corporation Relais électromagnétique
DE4408980A1 (de) * 1993-03-24 1994-09-29 Siemens Ag Elektromagnetisches Relais

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2723430C2 (de) * 1977-05-24 1984-04-26 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches Relais
DE3430589A1 (de) * 1984-08-20 1986-02-27 Siemens AG, 1000 Berlin und 8000 München Sockel fuer ein elektromagnetisches relais
US5015978A (en) * 1987-05-29 1991-05-14 Nec Corporation Electromagnetic relay
DE3938226C1 (en) * 1989-11-17 1991-05-23 E. Dold & Soehne Kg, 7743 Furtwangen, De Miniature switching relay of H=section - providing double insulated chamber for magnet and contact systems
ATE130956T1 (de) * 1990-01-12 1995-12-15 Omron Tateisi Electronics Co Elektromagnetisches relais.
JPH04149924A (ja) * 1990-10-15 1992-05-22 Nec Corp 電磁継電器
DE4410285C2 (de) * 1994-03-24 1997-09-18 Siemens Ag Leiterplattenrelais mit Einpreßanschlüssen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0613163A2 (fr) * 1993-02-24 1994-08-31 Omron Corporation Relais électromagnétique
DE4408980A1 (de) * 1993-03-24 1994-09-29 Siemens Ag Elektromagnetisches Relais

Also Published As

Publication number Publication date
JPH08329810A (ja) 1996-12-13
US5673012A (en) 1997-09-30
EP0746007B1 (fr) 2000-04-19
DE19520220C1 (de) 1996-11-21
DE59604985D1 (de) 2000-05-25
EP0746007A3 (fr) 1998-04-15

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